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Santec TSL-550 Operation Manual

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Tunable Semiconductor Laser
TSL-550
Operation Manual

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  • Page 1 Tunable Semiconductor Laser TSL-550 Operation Manual...
  • Page 2 TSL-550 Operation Manual Notes to Users 1) Copyright 2005, Santec Corporation. All rights reserved. No part of this Operation Manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the prior written permission of Santec.
  • Page 3 Thank you very much for your having purchased our product, Tunable Semiconductor Laser TSL Series. This Operation Manual contains information necessary for the operation of TSL-550, and it is intended for those with sufficient knowledge enough to of laser danger and its safe control. Before operating TSL-550, you should first read thoroughly through this Operation Manual and become familiar to its contents.
  • Page 4 Chapters 1 to 4 illustrate the outline of this product, safety precautions, and installation of the product. Chapters 5 to 6 describe how to operate the product. Santec recommends that Chapter 1 to 4 be read carefully before proceeding to this chapter.
  • Page 5 Tunable Semiconductor Laser TSL-550 Explanation of Terms The meanings of the following terms used in this Operation Manual are defined as below: (1) Meaning DANGER This indicates pressing DANGER, and if it DANGER!! is not avoided, personnel death or serious injury results, therefore, it is the most emphasized special information.

  • Page 6: Table Of Contents

    TSL-550 Operation Manual Contents Introduction How to Read the Manual Explanation of Terms 1. Safety Notes Intended use Safety Markings Operational notes Laser Class 2. Product Composition 3. Panel Descriptions Front Panel Rear Panel Bottom Panel Side Panel 4. Installation...
  • Page 7 　　7-3-3 Installing a USB Driver Software 　　7-3-4 Installing a VCP Driver Software 7-11 　　7-3-5 Command 7-16 Command Reference 7-16 　　7-4-1 Command set 1 (Complies with IEEE-488.2) 7-17 　　7-4-2 TSL-550 Specific Command set List (Command set 2) 7-47 8. Operating Principles...
  • Page 8 TSL-550 Operation Manual 9. Specifications Specifications 9- 1 Regulations conformity 9- 3 10. Maintenance 10-1 10-1 Daily Maintenance 10- 1 10-2 Cleaning the Optical Connector 10- 1 10-3 Replacing Fuses 10- 2 10-4 Inspection/Calibration 10- 2 10-5 Long-term Storage 10- 2 11.

  • Page 9: Safety Notes

    Tunable Semiconductor Laser TSL-550 Safety Notes 1-1 Intended use This product is designed to measure the optical characteristics. Do not use this product for anything other than as an optical measuring instrument. If this product is used in a manner not specified in this manual, the protection provided by this product may be impaired.

  • Page 10: Laser Class

    TSL-550 Operation Manual 1-4 Laser Class This product is classified class 1M laser product according to IEC 60825-1 (2014). Laser Type ：External Cavity Diode Laser Laser Class ：1M IEC60825-1(2014) Output Power ：< 50 mW Laser Diameter ：10 μm Numerical aperture ：0.1...

  • Page 11: Product Composition

    Tunable Semiconductor Laser TSL-550 Product Composition This product is composed of the TSL-550 body and accessories. Check to make sure that all the following items are included. TSL-550 body Interlock terminator (1) Power cord * Option Inspection report Operation Manual & Software Check to make sure that the product body and the accessories have no scratches or stains.
  • Page 12 TSL-550 Operation Manual...

  • Page 13: Panel Descriptions

    Tunable Semiconductor Laser TSL-550 Panel Descriptions 3-1 Front Panel Display Numeric keypad Dial HOME key Cursor key Soft keys　(F1, F2, F3, and F4 keys from the left) ENTER key CANCEL key Power On/Off key Power LED Optical output connector Analog Input LF Mod.

  • Page 14: Bottom Panel

    TSL-550 Operation Manual 3-3 Bottom Panel Intakes Rubber legs 3-4 Side Panel Intakes Rubber legs...

  • Page 15: Installation

    ･ Do not place with possible exposure to water. Be sure to install the TSL-550 in a level place (less than 5 degree). It is recommended to install this product on a vibration-proof base. The unit may not operate correctly if the device is set in an inclined position.

  • Page 16: Interlock (Option)

    TSL-550 Operation Manual 4-3 Interlock NOTE The interlock function is option. This product is equipped with a terminal for connecting an external interlock circuit. A terminator is connected to the interlock terminal at the time of factory shipment (or included as an accessory). If an external interlock is used, remove the terminator and connect a circuit to the interlock terminal.

  • Page 17: Basic Operation

    Tunable Semiconductor Laser TSL- 550 Basic Operation 5 -1 Turning on the Unit Press the power ON/OFF key at the lower left of the front panel. Power ON/OFF LED Analog Input LF Mod. Power ON/OFF Key The LED above the power ON/OFF key will turn green, and initialization will last for about 15 seconds.
  • Page 18 TSL-550 Operation Manual 4. It may take several minutes for the internal temperature to stabilize after the power is turned on. “Warm Up” is displayed on the main screen during this period. Normal operation can still be conducted while “Warm Up” is displayed.

  • Page 19: Ld Output

    Tunable Semiconductor Laser TSL- 550 5 -2 LD Output CAUTION Make sure that the optical fiber is connected correctly to the optical output connector before performing LD output. Also, be careful that high power light does not enter the optical output connector from the outside of the product.
  • Page 20 TSL-550 Operation Manual NOTE When “IntLock” is displayed on the main screen of the front panel, the interlock circuit is open and the LD will not illuminate. * with Interlock option “IntLock” is not displayed on the main screen because there is not the interlock function in standard model.

  • Page 21: Setting The Wavelength

    Tunable Semiconductor Laser TSL- 550 5-3 Setting the Wavelength NOTE Setting of the wavelength cannot be executed when LD output is OFF. Press 　λ　 (F1 key) on the main screen 1.　 F1 Key The wavelength setting screen appears, and the cursor blinks in the wavelength display area.
  • Page 22 TSL-550 Operation Manual How to input values ■ Using the numeric keypad (1) Input the value directly. Input all digits of integral numbers. (2) Press ENTER to accept the new value. (3) The main screen appears after setting. Using the dial (1) Press the ENTER key or the dial to enter input mode.

  • Page 23: Setting The Optical Power

    Tunable Semiconductor Laser TSL- 550 5-4 Setting the Optical Power 1.　 Press Power (F3 key) on the main screen. F3 Key The power setting screen appears, and the cursor blinks in the power display area. 　　(Switch the optical power control mode to “Auto” when it is “Manual”. Refer to “6-3. 　　 　　Switching the optical power control mode”.) 3.

  • Page 24: Setting The Wavelength Sweep

    TSL-550 Operation Manual 5-5 Setting the Wavelength Sweep 1.　 Press Sweep (F2 key) on the main screen. F2 Key Sweep setting screen 1 appears. There are two sweep setting screens in all. Setting is possible on the item on which the cursor is blinking. Move the cursor with the △...
  • Page 25 Tunable Semiconductor Laser TSL- 550 The setting items are as follows: Sweep Setting (1/2) λ start Sets the sweep start wavelength Range: Wavelength ranges specified in the specifications (Example: C+L Band = 1500 to 1630 nm) Unit: 0.0001 nm λ stop Sets the sweep end wavelength Range: Wavelength ranges specified in the specifications...
  • Page 26 TSL-550 Operation Manual Mode Sets the sweep operation mode. Select from the following four modes: Perform one-way sweep with step operation. Change the (A) Step wavelength from the start wavelength to the end wavelength with the wavelength interval set by STEP and the wait time set by Dwell.
  • Page 27 Tunable Semiconductor Laser TSL- 550 　　 (D) Sweep Perform two-way sweep by changing the wavelength continuously. Change the wavelength from the start wavelength to the end wavelength with the speed set by Speed. Afterwards, change the wavelength from the end wavelength to the start wavelength in the same manner.
  • Page 28 TSL-550 Operation Manual If Sweep mode is selected 〈 〉 Sweep Setting (2/2, Sweep mode) Speed Sets the sweep speed Range: 1.0 to 100.0 nm/s Unit: 0.1 nm/s Delay Sets the wait time between each sweep Range: 0.0 to 999.9 s Unit: 0.1 s...

  • Page 29: Executing The Wavelength Sweep

    Tunable Semiconductor Laser TSL- 550 5-6 Executing the Wavelength Sweep NOTE Sweep cannot be executed when LD output is OFF. 1.　 Press Sweep (F2 key) on the main screen. F2 Key The Sweep setting screen appears. Perform operations according to the soft key menu on the sweep setting screen 3.
  • Page 30 TSL-550 Operation Manual The current wavelength is displayed at λ curr in the first line during sweep operation. An indicator showing the sweep progress is displayed on the bottom line. Indicator F3 Key F4 key 4. 　Multiple sweep operations Press Repeat (F2 key) to execute a series of the following operations: (1) Sets to the start wavelength( λ...
  • Page 31 Tunable Semiconductor Laser TSL- 550 If the value is set to 0 (zero), the number of times is infinite. Press Stop (F4 key) to stop. λ curr in the first line during sweep operation. The current wavelength is displayed at Indicators showing the progress of the sweep and the completed number of sweeps are displayed at the bottom.
  • Page 32 TSL-550 Operation Manual 6. 　 Stop and Pause a sweep Press Pause (F3 key) to pause a sweep. “Pause” lights up on the screen. Press Resume (F3 key) to resume a sweep. If you cancel a sweep, press Stop (F4 key).

  • Page 33: Turning Off The Unit

    Tunable Semiconductor Laser TSL- 550 5 -7 Turning off the Unit Turn off LD output. (Refer to "5-2. LD output") Press the power ON/OFF key for at least 2 seconds. Power LED Analog Input LF Mod. Power ON/OFF Key The unit is shut down, and LED above the power ON/OFF key will turn orange. “Shutting Down ...”...
  • Page 34 TSL-550 Operation Manual CAUTION Abnormal Operation If for some reason a fault occurs which prevents the instrument from being switched off by the normal procedure described above, the instrument can be switched off by holding the Power On/Off key for at least 10 seconds.

  • Page 35: Status Display

    Tunable Semiconductor Laser TSL- 550 5 -8 Status Display The display shows the status of the product. For more information please check the contents of each page. ① ② ③ ④ ⑤ ⑥ Display Status Description Page position It is displayed when the internal temperature is unstable Warm Up immediately after power on.
  • Page 36 TSL-550 Operation Manual 5-20...

  • Page 37: Detailed Operation

    Tunable Semiconductor Laser TSL- 550 Detailed Operation 6 -1 Fine-tuning A function for fine-tuning the oscillation wavelength with a resolution under 10MHz. The adjustable wavelength range is about 10 GHz (about 80 pm around 1550 nm). The setting value is indicated with a relative value, and can be set within the range -100.00 to +100.00 in 0.01 increments.
  • Page 38 TSL-550 Operation Manual 4. The input line of the FT value is displayed on the second line. Input a value with the numeric keypad, the dial, or the △▽ keys. (Refer to “How to input values” in “5-3. Setting the wavelength”.) Range: –100.00 to +100.00...

  • Page 39: Coherence Control

    Tunable Semiconductor Laser TSL- 550 6-2 Coherence Control A function used to increase the spectral linewidth of the output light. The coherence of the light is reduced by increasing the linewidth, and the fluctuation of the optical power by interference can be suppressed. If the fluctuation of the optical power becomes a problem due to influence from the reflecting point in the system using this device, use this function.

  • Page 40: Switching The Optical Power Control Mode

    TSL-550 Operation Manual 6-3 Switching the Optical Power Control Mode The power control of the optical output can be switched between Auto and Manual. In auto control mode (Auto), the power of the output light is kept constant by feedback from the output power value measured at the self-contained power meter.

  • Page 41: Setting The Trigger Output

    Tunable Semiconductor Laser TSL- 550 3. The mode switches to manual control mode. The setting value of the self-contained attenuator is displayed and the status display changes from “Auto” to “Manual”. The power indicator changes from the setting value to the monitored value of the output power.

  • Page 42: Setting The Trigger Output

    TSL-550 Operation Manual ■ 6-4-1 Setting the Trigger Output 1. Press Menu (F4 key) → Trigger (F2 key) on the main screen. F2 key 2. Move the cursor to “Output Trigger Mode” on the trigger signal setting screen with the dial, or the △▽ keys.

  • Page 43: Setting The Trigger Input

    Tunable Semiconductor Laser TSL- 550 5. Move the cursor to “Step”. 6. Press the ENTER key to enter input mode. Input the value with the △▽ keys, or the dial. 7. Press the ENTER key to exit input mode. ■ 6-4-2 Setting the Trigger Input 1.

  • Page 44: External Modulation

    TSL-550 Operation Manual NOTE The maximum recordable data is 65535 points. Only the first 65535 data points of the wavelength logging data are recorded, even if in the sweep condition that outputs more than 65535 triggers. When “Full Log” is displayed on the front display, the logging data is larger than 65535 points and all data is not recorded to the memory.
  • Page 45 Tunable Semiconductor Laser TSL- 550 5. Input the modulation signal into the BNC connector labeled “LF Mod.” inside the cover at the bottom of the front panel. Analog Input LF Mod. RF Mod. Low-frequency modulation signal input Specifications Modulation bandwidth: DC to 400kHz Input level: 0 to –2V Modulation depth:...

  • Page 46: High-Frequency Modulation (Option)

    TSL-550 Operation Manual NOTE Set the source to Disable when modulation function is not used, in order to narrow the spectral linewidth. If coherence control is active, modulation setting is always set to “Ext.” and cannot be changed to “Disable”. (Refer to “6-2 Coherence Control”)

  • Page 47: Analog Signal Input

    Tunable Semiconductor Laser TSL- 550 CAUTION If high-frequency modulation is not used, make sure to connect the terminator to the input terminal. Failure to do so may degrade the stability of the light intensity. The high-frequency modulation terminal is connected directly to the LD through matching resistors and capacitors.

  • Page 48: Power Monitor Signal Output

    This feature outputs the voltage according to integrated power monitor. It can be used to compensate output power fluctuation in real time, for example. (This feature is best recommended to be used with Santec’s SPU-100 as WDL/PDL measurement solution, Santec’s Swept Test System)
  • Page 49 Tunable Semiconductor Laser TSL- 550 Output voltage changes according to measurement range of power monitor, as shown below. Measurement range is adjusted automatically. Output voltage value against optical output power is not calibrated. Typical voltage over output power correlation for each measurement range is shown below.

  • Page 50: Wavelength Memory Function

    TSL-550 Operation Manual 6-8 Wavelength Memory Function A function used to set the oscillation wavelength to a wavelength stored in memory. A total of 100 wavelength values can be stored. F3 key ■ 6-8-1 Wavelength Readout 1. Press Memory (F3 key) on the wavelength setting screen.

  • Page 51: Wavelength Registration

    Tunable Semiconductor Laser TSL- 550 ■ 6-8-2 Wavelength Registration 1. Set the desired wavelength following general wavelength setting steps. (Refer to “5. Basic operation”.) 2. Press Memory (F3 key) on the wavelength setting screen. 3. The wavelength memory screen appears. 4.

  • Page 52: Changing The Unit Of The Wavelength

    TSL-550 Operation Manual 6-9 Changing the Unit of the Wavelength 1. Change the screen to the wavelength setting screen. See ”5-3. Setting the wavelength” on how to change. 2. Press nm/THz (F1 key). F1 key 3. The display/input unit is changed.

  • Page 53: Changing The Unit Of The Power

    Tunable Semiconductor Laser TSL- 550 6-10 Changing the Unit of the Power 1. Press mW/dBm (F1 key) on the power setting screen. F1 key 2. The display/input unit is changed. All units will be changed on all screens, including this screen. 3.

  • Page 54: Internal Shutter

    TSL-550 Operation Manual 6-11 Internal Shutter Internal shutter is used to temporarily interrupt the optical power. Turn the LD OFF when interrupting for a long time. (Refer to “5-2. LD output”.) 1. Press Shutter (F3 key) on the power setting screen.

  • Page 55: Displaying The Product Information

    Tunable Semiconductor Laser TSL- 550 6-12 Displaying the Product Information Display the various product information. 1. Move to the screen for various settings from the main screen using Menu (F4 key) → Next (F4 key). 2. Press Info (F3 key). F3 key 3.
  • Page 56 TSL-550 Operation Manual 6-20...

  • Page 57: Operation By Communication

    Tunable Semiconductor Laser TSL- 550 Operation by Communication CAUTION Before inserting and extracting the connectors for the communication cables, make sure to turn off the power to the device to avoid damaging the device. This device supports GP-IB, RS-232C, and USB as means of communication. Available commands vary according to the communication method used.

  • Page 58: Gp-Ib Function

    TSL-550 Operation Manual CAUTION Do not disconnect or connect a cable from and to devices connected with GP- IB cable, do not short-circuit connector, and do not turn ON/OFF the devices. Otherwise, action may be stopped, error may occur, causing a failure. In the event of trouble owing to these causes, reset all the connected devices, and then activate the system once again.

  • Page 59: Setting The Address, Delimiter, And Command Set

    SCPI consortium (Command set 1). This command set has high compatibility with other companies’ instruments. Select “santec” when using commands based on our existing original commands (Command set 2). This command set has high compatibility with our existing products.

  • Page 60: Rs-232C

    TSL-550 Operation Manual Refer to “7-4-1. Command set 1”. 3. Go back with the Back or Home key after setting. 7- 2 RS-232C ■ 7-2-1. Connection Connect the crossover cable with D-sub 9 pins to the RS-232C connector on the real panel.

  • Page 61: Setting The Transmission Speed, And The Delimiter

    2. Go back with the Back or Home key after setting. ■ 7-2-3. Command Only Command set 2 can be used. Refer to “7-4-2. TSL-550 Specific Command List (Command set 2)” 7- 3 USB ■ 7-3-1. Connection Connect the B-type connector cable to the USB connector on the rear panel.

  • Page 62: Communication Conditions And System Requirements

    TSL-550 Operation Manual ■ 7-3-2. Communication Conditions and System Requirements USB 2.0 compatible Transfer speed: 1 MBps (with D2XX driver) Transfer speed: 300 KBps (with VCP driver) Transfer FIFO size Sending FIFO：384 bytes Receiving FIFO: 128 bytes Setting the Delimiter: The delimiter of the command is “CR”.

  • Page 63: Installing A Usb Driver Software

    Even though some pop-up messages will be displayed when USB cable is connected the device and PC, please click cancel or close message. 1. Open “Device Manager” (Figure 7-3-3-1) and open “TSL-550” under “Other devices.” Right-click on “TSL-550” and click on “Update Driver Software...”.
  • Page 64 TSL-550 Operation Manual 2. Click on “Browse my computer for driver software” when message window (Figure 7-3-3-2) appears. Figure7-3-3-2. Update driver software 3. On message window (Figure 7-3-3-3), click on “Browse” button to select the driver software location under Removable disk included in package.
  • Page 65 Tunable Semiconductor Laser TSL- 550 4. Installation will automatically start. Message window Figure 7-3-3-4 will appear. Figure7-3-3-4. Installation in progress 5. If a Windows Security message in Figure 7-3-3-5 appears, please click on “Install this driver software anyway” to proceed. Figure7-3-3-5.
  • Page 66 TSL-550 Operation Manual 6. Installation is completed successfully when Figure 7-3-3-6 appears. Click on “Close” to exit the installation. Figure7-3-3-6. Installation complete 7-10...

  • Page 67: Installing A Vcp Driver Software

    To enable VCP communication, VCP driver software must be installed. 1. After installed USB driver software by 7-3-3, open “Device Manager” (Figure 7-3-4- 1), and open “Santec USB TSL-550” under “Universal Serial Bus Controllers”. Right- click on “Santec USB TSL-550” and click on “Properties”.
  • Page 68 TSL-550 Operation Manual 3. Disconnect USB cable from PC, and reconnect to PC. Open “Device Manager” (Figure 7-3-4-3) and open “USB Serial Port” under “Other Devices”. Right-click on “USB Serial Port” and click on “Properties”. Figure7-3-4-3 Device Manager 4. Click “Update Driver…” in “Driver” tab.
  • Page 69 Tunable Semiconductor Laser TSL- 550 5. Click on “Browse my computer for driver software” when message window (Figure 7-3-4-5) appears. Figure7-3-4-5. Update Driver Software 6. On Message window (Figure 7-3-4-6), click on “Browse” button to select the driver software location under Removable disk included in package. (e.g.
  • Page 70 TSL-550 Operation Manual 7. Installation will automatically start. Message window Figure 7-3-4-7 will appear. Figure7-3-4-7. Installation in progress 8. Installation is completed successfully when Figure 7-3-4-8 appears. Click on “Close” to Exit the installation. Figure7-3-4-8. Installation complete 7-14...
  • Page 71 Tunable Semiconductor Laser TSL- 550 9. Open “Device Manager” (Figure 7-3-4-9), to check added information of serial port number on “Ports (COM & LPT). (E.g. USB Serial Port (COM7)) Figure7-3-4-9. Device Manager 7-15...

  • Page 72: Command

    (Command set 2)”. 7- 4 Command Reference Two kinds of command sets are provided for the TSL-550. Select one of them in advance and use the commands in that category. Commands in one command set cannot be used with commands in the other command set simultaneously.

  • Page 73: Command Set 1 (Complies With Ieee-488.2)

    Tunable Semiconductor Laser TSL- 550 ■ 7- 4 -1. Command set 1 (Complies with IEEE-488.2) 1. Common Command List Available for IEEE-488.2 common commands in the following list. Common Commands (Command set 1 Group) Command Description Page Identification Query Returns strings that identify the device. *IDN? 7-20 Reset (Aborts the standby command.)
  • Page 74 TSL-550 Operation Manual 2. TSL-550 Status system When Command set 1 is selected, the following status systems with four registers are provided. (1) Status Byte Register (STBR) (2) Service Request Enable Register (SRER) (3) Standard Event Status Register (SESR) (4) Standard Event Enable Register (SEER) 1) Status System Structure Overview * Output queue is cleared when a new command is input into the input queue.
  • Page 75 Tunable Semiconductor Laser TSL- 550 RQS (Request Service Bit): RQS is set when a Service Request is issued. ESB (Event Status Bit): ESB is set when any of the bits of the Standard Event Status Register (SESR) is set. MAV (Message Available Bit): MAV is set when output data is prepared.
  • Page 76 TSL-550 Operation Manual 3. IEEE-488.2 common commands - Detailed description 1) *IDN? Identification Query Syntax *IDN? Description A query to identify the device; places strings of device information such as the name, firmware, and version in the output queue. Parameter...
  • Page 77 Tunable Semiconductor Laser TSL- 550 4) *OPC? Operation Complete Query Syntax *OPC? Description Places 1 in the output queue when all operation processing has completed. Response 0: (In operation) 1: (Operation completed) 5) *CLS Clear Status Syntax *CLS Description Clears all event registers and queues and reflects the summary in the Status Byte Register.
  • Page 78 TSL-550 Operation Manual 　 9) *SRE Service Request Enable Register Setting Syntax *SRE<wsp><value> Description Sets the Service Request Enable Register (SRER). Parameter Setting value from 0 to 255 Response None 10) *SRE? Service Request Enable Register Query Syntax *SRE? Description Places the value of the Service Request Enable Register (SRER) in the output queue.
  • Page 79 Tunable Semiconductor Laser TSL- 550 4. TSL-550 Specific command overview An overview of the specific commands available in Command set 1 is shown in the following table. TSL-550 Specific Command List (Command set 1 Group) Command Description Page :SPECial:REBoot Resets the device.
  • Page 80 TSL-550 Operation Manual Command Description Page [:SOURce]:POWer:SHUTter Sets Open/Close status of the internal shutter. 7-33 [:SOURce]:POWer:SHUTter? Reads out the status of the internal shutter. 7-33 Changes the unit of the power setting and [:SOURce]:POWer:UNIT 7-33 display. Reads out the unit of the power setting and...
  • Page 81 Tunable Semiconductor Laser TSL- 550 Command Description Page Sets the wait time between each sweep in [:SOURce]:WAVelength:SWEep:DELay 7-39 continuous sweep operation. Reads out the wait time between each [:SOURce]:WAVelength:SWEep:DELay? 7-39 sweep in continuous sweep operation. Sets the amount of time spent during each [:SOURce]:WAVelength:SWEep:DWELl 7-39 step in step sweep operation.
  • Page 82 TSL-550 Operation Manual 5. TSL-550 specific command detailed description Specific commands in Command set 1 are described in detail as follows. 1) System related commands :SPECial:REBoot Syntax :SPECial:REBoot Description Resets the device. Parameter None Response None Example :SPEC:REB :SYSTem:ERRor? Syntax...
  • Page 83 Tunable Semiconductor Laser TSL- 550 Parameter None Response Integer from 1 to 30 Example :SYST:COMM:GPIB:ADDR? → 10 Indicates that the GPIB address is “10”. :SYSTem:COMMunicate:GPIB:DELimiter Syntax :SYSTem:COMMunicate:GPIB:DELimiter<wsp> <value> Description　 Sets the command delimiter for GPIB communication. EOI is always sent. Parameter 0：CR 1：LF...
  • Page 84 TSL-550 Operation Manual :SYSTem:COMMunicate:SERial:SPEed? Syntax :SYSTem:COMMunicate:SERial:SPEed? Description　 Reads out the speed of serial communication. Parameter None Response 0：2400 bps 1：4800 bps 2：9600 bps 3：19200 bps Example :SYST:COMM: SER:SPE? → 2 Indicates that the serial communication speed is ”9600 bps”. :SYSTem:COMMunicate:SERial:DELimiter Syntax : SYSTem:COMMunicate:SERial:DELimiter<wsp>...
  • Page 85 Tunable Semiconductor Laser TSL- 550 : SYSTem: LOCK? Syntax : SYSTem:LOCK? Description　 Reads out interlock and system lock status. Parameter None Response 0：Unlocked 1：System locked (Password is required) 2： Interlock is on 3： Interlock and system lock on Example : SYST:LOCK? 2）Input /Output related command　...
  • Page 86 TSL-550 Operation Manual :TRIGger:INPut:STANdby? Syntax :TRIGger:INPut:STANdby? Description　 Reads out the trigger signal input standby mode. Parameter None Response 0: Normal operation mode 1: Trigger standby mode Example :TRIG:INP: STAN? → 1 Indicates that the device is in trigger standby mode.
  • Page 87 Tunable Semiconductor Laser TSL- 550 Response None Example :TRIG:OUTP:STEP 1 Sets the interval of the trigger signal output. :TRIGger:OUTPut:STEP[:WIDTh]? Syntax :TRIGger: OUTPut: STEP [:WIDTh]? Description　 Reads out the interval of the trigger signal output. Parameter None Response Range：0.0001 〜 160　 （nm）...
  • Page 88 TSL-550 Operation Manual Response None Example : POW :STAT 1 Turns the LD ON. [:SOURce]:POWer:STATe? Syntax [:SOURce]:POWer:STATe? Description　 Reads out the ON/OFF status of the LD. Parameter None Response 0: LD ON 1: LD OFF Example : POW:STAT? → 1 Indicates that the LD is ON.
  • Page 89 Tunable Semiconductor Laser TSL- 550 [:SOURce]:POWer:ATTenuation:AUTo? Syntax [:SOURce]:POWer:ATTenuation:AUTo? Description　 Reads out the setting of the power control. Parameter None Response 0：Manual 1：Auto Example : POW: ATT: AUT? [:SOURce]:POWer:SHUTter Syntax [:SOURce]: POWer : SHUTter<wsp> <value> Description Sets Open/Close status of the internal shutter. Parameter 0：Shutter Open 1: Shutter Close...
  • Page 90 TSL-550 Operation Manual Example :POW : UNIT? → 1 Indicates that the power setting and display unit is set to “mW”. [:SOURce]:POWer[:LEVel] Syntax [:SOURce]: POWer [:LEVel ] <wsp> <value> Description Sets the optical output power. Parameter　 Range: 30dB up to peak power Typical value -17 ~ +13dBm (0.02 ~ 20mW)
  • Page 91 Tunable Semiconductor Laser TSL- 550 [:SOURce]:POWer:ACTual[:LEVel]? Syntax [:SOURce]:POWer:ACTual[:LEVel]? Description　 Reads out the monitored value of the optical output power. The monitored value is the value actually measured by the self-contained power monitor. Parameter None Response Range: 30dB up to peak power Typical value -17 ~ +13dBm (0.02 ~ 20mW) The available range of output power...
  • Page 92 TSL-550 Operation Manual [:SOURce]:WAVelength:UNIT? Syntax [:SOURce]:WAVelength:UNIT? Description　 Reads out the unit setting of the wavelength indication. Parameter None Response 0：nm 1：THz Example :WAV:UNIT? → 1 Indicates that the wavelength unit is THz. [:SOURce]:WAVelength Syntax [:SOURce]:WAVelength<wsp><value> Description　 Sets the output wavelength.
  • Page 93 Tunable Semiconductor Laser TSL- 550 [:SOURce]:WAVelength:FINe Syntax [:SOURce]: WAVelength: FINe <wsp> <value> Description　 Sets the fine-tuning. Parameter Range：-100.00 〜 +100.00　 (Unit: None) Step：0.01 (Unit: None) Response None Example :WAV:FIN 50 Sets the fine-tuning to50. [:SOURce]:WAVelength:FINe? Syntax [:SOURce]:WAVelength:FINe? Description　 Reads out the setting value of the fine-tuning. Parameter None Response...
  • Page 94 TSL-550 Operation Manual [:SOURce][:WAVelength]:FREQuency? Syntax [:SOURce][:WAVelength]:FREQuency [:MINimum|:MAXimum]? Description　 Reads out the output wavelength in optical frequency. Parameter None: Reads out the currently set frequency. MINimum: Reads out the minimum acceptable frequency. MAXimum: Reads out the maximum acceptable frequency. Response Range: Minimum frequency to Maximum frequency：(THz)
  • Page 95 Tunable Semiconductor Laser TSL- 550 Response Range：0 〜 999　　 Step：1 Example :WAV:SWE:COUN? → 100 Indicates that 100 sweeps have completed. [:SOURce]:WAVelength:SWEep:DELay Syntax [:SOURce]: WAVelength: SWEep: DELay <wsp> <value> Description　 Sets the wait time between each sweep in continuous sweep operation. Parameter Range：0 〜...
  • Page 96 TSL-550 Operation Manual [:SOURce]:WAVelength:SWEep:DWELl? Syntax [:SOURce]:WAVelength:SWEep:DWELl? Description　 Reads out the amount of time spent during each step in step sweep operation. Parameter None Response Range：0 〜 999.9 (s)　　 Step：0.1 (s) Example :WAV:SWE:DWEL? → 3.0 Indicates that the wait time is set to 3 seconds.
  • Page 97 Tunable Semiconductor Laser TSL- 550 Example :WAV:SWE:SPE 100 Sets the sweep speed to 100 nm/s. [:SOURce]:WAVelength:SWEep:SPEed? Syntax [:SOURce]:WAVelength:SWEep:SPEed? Description　 Reads out the speed of continuous sweep. Parameter None Response Range：1.0 〜 100 (nm/s) Step：0.1 (nm/s) Example :WAV:SWE:SPE? → 100.000 Indicates that the sweep speed is set to 100 nm/s. [:SOURce]:WAVelength:SWEep:STARt Syntax [:SOURce]:WAVelength:SWEep:STARt<wsp><value>...
  • Page 98 TSL-550 Operation Manual [:SOURce]:WAVelength:SWEep:STOP? Syntax [:SOURce]:WAVelength:SWEep:STOP ? Description　 Reads out the sweep end wavelength. Parameter None Response Range: Wavelength range (nm) Step：0.0001 (nm) Example :WAV:SWE:STOP? → 1620.000 Indicates that the sweep end wavelength is 1620 nm. [:SOURce]:WAVelength:SWEep:STEP[:WIDTh] Syntax [:SOURce]: WAVelength:SWEep:STEP [:WIDTh ] <wsp>...
  • Page 99 Tunable Semiconductor Laser TSL- 550 [:SOURce][:WAVelength]:FREQuency:SWEep:STARt? Syntax [:SOURce][:WAVelength]:FREQuency:SWEep:STARt? Description　 Reads out the sweep start frequency. Parameter None Response Range: Frequency tuning range (THz) Step：0.00001 (THz) Example :FREQ:SWE:STAR? → 185.0570 Indicates that the sweep start frequency is 185.0570 THz. [:SOURce][:WAVelength]:FREQuency:SWEep:STOP Syntax [:SOURce][:WAVelength]:FREQuency:SWEep: STOP<wsp><value>...
  • Page 100 TSL-550 Operation Manual [:SOURce][:WAVelength]:FREQuency:SWEep:STEP[:WIDTh]? Syntax [:SOURce][:WAVelength]:FREQuency:SWEep :STEP[:WIDTh]? Description　 Reads out the step interval (frequency) of step sweeps. Parameter None Response Range：0.00002 〜 19.76219 (THz) Step：0.00001 (THz) Example :FREQ:SWE:STEP? → 0.010 Indicates that the step interval (frequency) is 0.01 THz. [:SOURce]:WAVelength:SWEep[:STATe] Syntax [:SOURce]:WAVelength:SWEep [:STATe] <wsp>...
  • Page 101 Tunable Semiconductor Laser TSL- 550 [:SOURce]:WAVelength:SWEep[:STATe]:REPeat Syntax [:SOURce]:WAVelength:SWEep[:STATe]:REPeat Description　 Executes multiple sweeps. Parameter None Response None Example :WAV:SWE:REP Executes multiple sweeps. [:SOURce]:WAVelength:SWEep:SOFTtrigger Syntax [:SOURce]:WAVelength:SWEep:SOFTtrigger Description　 Issues a soft trigger. Executes sweep from trigger standby mode. Parameter None Response None Example : WAV:SWE:SOFT Issues a soft trigger.
  • Page 102 TSL-550 Operation Manual [:SOURce]:AM:STATe Syntax [:SOURce]:AM:STATe<wsp><value> Description　 Enables and disables amplitude modulation of the laser output.External modulation setting cannot be changed to enable, when coherence control is On. Parameter 0: Disable 1: Enable Response None Example :AM:STAT 1 Enables the amplitude modulation of the laser output.

  • Page 103: Specific Command Set List (Command Set 2)

    Tunable Semiconductor Laser TSL- 550 ■ 7-4-2. TSL-550 Specific Command set List (Command set 2) This Command set maintains compatibility with existing Santec products, though does not satisfy the requirements specified in IEEE-488.2. Only Command set 2 is available at control when using USB or RS-232C.
  • Page 104 TSL-550 Operation Manual Command Description Page Sets / reads out the step interval (frequency) of step sweeps. 7-55 Sets the sweep operation mode. 7-55 Execute a sweep. 7-56 Pause the sweep. 7-56 Stop the sweep. 7-56 Resume the sweep from pause state.
  • Page 105 Tunable Semiconductor Laser TSL- 550 2. TSL-550 specific command detailed description Specific commands in Command set 2 are described in detail as follows. *IDN? Syntax *IDN? Description A query to identify the device; places strings of device information such as the name, firmware, and version in the output queue. Parameter...
  • Page 106 TSL-550 Operation Manual Response Currently set value. A value is returned both on setting and on reading. Example Sets output frequency to 192.0000THz. FQ192.0000 Reads out the currently set value → 192.0000 Indicates that the currently set frequency is 192.0000THz. Syntax FT<value> Description Sets the Fine-Tuning value. When parameter is not specified, reads out the value currently set. Parameter Range: -100 ~+ 100 Step: 0.01 Response Currently set value. A value is returned both on setting and on reading. Example Sets the Fine-Tuning value to –50. FT-50 Reads out the currently set value → 0100.00 Indicates that the currently set value is 100.
  • Page 107 Tunable Semiconductor Laser TSL- 550 Syntax LP<value> Description Sets the optical output power in mW. When parameter is not specified, reads out the actual power value. Parameter Range: 0.02 ~ 20mW (typical) Step: 0.01(mW) Response Currently set value. A value is returned both on setting and on reading. Example Sets the optical output power to 10mW. LP10 Reads out the actual power value. → 010.005 Indicates that the actual power value is 10.005mW. Syntax Description Sets the power control to Auto. Parameter None Response None Syntax Description Sets the power control to Manual. Parameter None Response None Syntax AT<value> Description Sets the internal attenuator value.
  • Page 108 TSL-550 Operation Manual Syntax Description Sets OPEN status of the internal shutter. Parameter None Response None Syntax Description Revises the compensate power data of sweeps in auto power mode. Recommend executing this command when "Over LD"or"Low Pwr" is displayed. Parameter None Response None Syntax SS<value> Description Sets the sweep start wavelength. When parameter is not specified, reads out the currently set value Parameter Range: Minimum setting wavelength to Maximum (nm) Step: 0.0001(nm) Response Currently set value. A value is returned both on setting and on reading. Example Sets the sweep start wavelength to 1510nm. SS1510 Reads out the currently set value. → 1560.000 Indicates that the currently set start wavelength is 1560nm.
  • Page 109 Tunable Semiconductor Laser TSL- 550 Syntax SE<value> Description Sets the sweep stop wavelength. When parameter is not specified, reads out the currently set value. Parameter Range: Minimum setting wavelength to Maximum (nm) Step: 0.0001(nm) Response Currently set value. A value is returned both on setting and on reading. Example Sets the sweep stop wavelength to 1630nm. SE1630 Reads out the currently set value. → 1560.000 Indicates that the currently set stop wavelength is 1560nm. Syntax FF<value> Description Sets the sweep stop frequency. When parameter is not specified, reads out the currently set value. Parameter Range: Minimum setting frequency to Maximum (THz) Step: 0.00001 (THz) Response Currently set value. A value is returned both on setting and on reading. Example Sets the sweep stop frequency to 199.8616THz. FF199.8616 Reads out the currently set value. → 199.8616 Indicates that the currently set stop frequency is 199.8616THz.
  • Page 110 TSL-550 Operation Manual SB Syntax SB<value> Description Sets the amount of time spent during each step in step sweep operation. The wait time between each sweep is also set to the same value. This wait time does not include the time required for wavelength conversion. When parameter is not specified, reads out the currently set value. Parameter Range: 0 ~ 999.9 (s) Step: 0.1 (s) Response Currently set value. A value is returned both on setting and on reading. Example Sets the wait time of each step to 1 second. Reads out the currently set value. → 0000.50 Indicates that the currently set wait time of each step is 0.5 second. Syntax SZ<value> Description Sets the number of wavelength sweeps. When parameter is not specified, reads out the currently set value. Parameter Range: 0 ~999 Step: Response Currently set value. A value is returned both on setting and on reading. Example Sets the number of sweeps to 100. SZ100 Reads out the currently set value. → 000100 Indicates that the number of sweeps is set to 100.
  • Page 111 Tunable Semiconductor Laser TSL- 550 Syntax WW<value> Description Sets the step interval (wavelength) of step sweeps. When parameter is not specified, reads out the currently set value. Parameter Range: 0.0001 ~ 160 (nm) Step: 0.0001 (nm) Response Currently set value. A value is returned both on setting and on reading. Example Sets the step interval to 1 nm. Reads out the currently set value. → 010.000 Indicates that the step interval is 10nm. Syntax WF<value> Description Sets the step interval (frequency) of step sweeps. When parameter is not specified, reads out the currently set value. Parameter Range: 0.00002 ~ 19.76219 (THz) Step: 0.00001 (THz) Response Currently set value. A value is returned both on setting and on reading. Example Sets the step interval (frequency) to 0.1 THz. WF0.1 Reads out the currently set value. → 00.1000 Indicates that the step interval (frequency) is 0.1THz. Syntax SM<value>...

  • Page 112: Sg Execute A Sweep

    TSL-550 Operation Manual Response Currently set value. A value is returned both on setting and on reading. Example Sets the sweep mode to Continuous One-way operation. Reads out the currently set value. → 00009 Indicates that Step one-way operation is started by trigger signal. Syntax Description Executes sweeps or puts the device in trigger signal input standby. When sweep mode is SM1 to 6, executes sweeps of number that specified by SZ. When sweep mode is SM7 to 12, puts the device in trigger signal input standby. Parameter None: Executes multiple sweeps. 1: Executes a sweep once. Response None Example Execute a sweep. Syntax Description Pauses the sweep. When a fast sweep speed is set, pause will not function. Parameter None Response None Example Pauses the sweep. Syntax Description Stops the sweep.

  • Page 113: Sx Reads Out The Current Number Of Completed Sweeps

    Tunable Semiconductor Laser TSL- 550 Syntax Description Resumes a sweep from the pause state. Parameter None Response None Example Resumes a sweep. Syntax Description Issues a soft ware trigger. This command is used as institute of an external trigger. Set the sweep mode from SM 7 to 12, and trigger standby before operation. Parameter None Response None Example Starts a sweep. Syntax SX Description Reads out the current number of completed sweeps. Parameter None Response current number Example → 000100 Indicates that the number of completed sweeps is 100. Syntax Description Reads out the current sweep condition. Parameter None Response...

  • Page 114: Tre

    TSL-550 Operation Manual Syntax Description Sets Enable of the external trigger signal input. Parameter None Response None Syntax Description Sets Disable of the external trigger signal input. Parameter None Response None Syntax TM<value> Description Sets the timing of the trigger signal output. When parameter is not specified, reads out the currently set value. Parameter 0:None 1:Stop 2:Start 3:Step Response Currently set value Example Sets the timing to Stop. Syntax TW<value> Description Sets the interval of the trigger signal output. When parameter is not specified, reads out the currently set value. Parameter Range: 0.0001 ~ 160 (nm) Step: 0.0001 (nm)
  • Page 115 Tunable Semiconductor Laser TSL- 550 Syntax GA<value> Description Sets GPIB address. When parameter is not specified, reads out the currently set value. Parameter Range: 1 ~ 30 Step: Response Currently set value Example Sets GPIB address to 20. GA20 Syntax GD<value> Description Sets the command delimiter for GPIB communication. When parameter is not specified, reads out the currently set value. Parameter 0:CR 1:LF 2:CR+LF 3:No delimiter, EOI is sent. Response Currently set value Example Sets the command delimiter to CR+LF. BL Syntax BL<value> Description Sets the speed of serial communication (Baud rate). When parameter is not specified, reads out the currently set value.
  • Page 116 TSL-550 Operation Manual Syntax Description Reads out the status. Parameter None Response Status. Status is shown by the first sign and the numerical value of six digits. The state that each digit shows is as follows. Code digit digit －□□□□□□ digit digit digit digit Code [-/none ] indicates LD status. 0:OFF, 1:ON 6th digit [0 / 1] indicates coherence control. 0:OFF, 1:ON 5th digit [0 / 1] indicates Fine-tuning. 0:OFF, 1:ON 4th digit [0 - 5] indicates control mode of output power, attenuator, and power monitor range. For detail refer to the table below. 3rd digit [0 / 1] indicates LD temperature error. 0:No error, 1:Error occurred. 2nd digit [0 / 1] indicates LD current limit error. 0:No error, 1:Error occurred. 1st digit [0 - 7] indicates operation status. 0:Operation is completed. 1:Wavelength is tuning. 2:LD current is setting (LD is on state and power control is Auto). 3:Wavelength is tuning and LD current is setting . 4:Attenuator is setting. 5:wavelength is setting and attenuator is setting. 6:LD current is setting and attenuator is setting. 7:Wavelength is tuning ,LD current is setting and attenuator is setting. Example Reads status. → -000005 LD is ON ,wavelength tuning is operating and attenuator tuning is operating.

  • Page 117: Tn Reads The Number Of Data Points Recorded By Wavelength

    Tunable Semiconductor Laser TSL- 550 Detail description of the 4th digit Power monitor Value Power control Attenuator control range control Auto Hold Auto Manual Hold (Manual) Auto Auto Auto Auto Auto Hold Hold Manual Hold (Manual) Hold Syntax Description Reads the number of data points recorded by wavelength logging. Parameter None Response 00000 ~ 65535 (The numerical value of five digits) Example →...

  • Page 118: Hfe

    TSL-550 Operation Manual HFE Syntax Description Turns the status of external modulation bandwidth broader. This command is necessary when LF modulation is used. External modulation setting cannot be changed to enable, when coherence control is ON. Parameter None Response None HFD Syntax Description Turns the status of external modulation bandwidth narrower. It is effective for reduction of the spectral linewidth. Parameter None Response None Syntax WAS <value> Description Registers a wavelength data to the memory area. Wavelength that is registered is currently set wavelength. Parameter Memory number Response None Syntax WAM<value> Description Recalls the wavelength data from the memory area. Wavelength is set to the recalled value. Parameter Memory number...

  • Page 119: Operating Principles

    RS-232C Control Circuit Trigger signal TSL-550 block diagram This device consists of an external cavity laser, optical attenuator, optical power monitor, Wavelength monitor and an electronic control circuit. As shown in Fig.2, the external cavity laser consists of a laser diode (LD), diffraction grating and a mirror. By changing the angle of the mirror, the lasing wavelength can be tuned.
  • Page 120 TSL-550 Operation Manual...

  • Page 121: Specifications

    Tunable Semiconductor Laser TSL-550 Specifications 9-1 Specifications Optical Specifications Wavelength range: 1260 to 1360nm and 1500 to 1630nm Performance CategoryP arameter Unit TypeA TypeC Wavelength Tuning Range 1260 to 1360 / 1500 to 1630 Wavelength Setting Resolution Absolute Wavelength Accuracy ±15...
  • Page 122 TSL-550 Operation Manual Optical Specifications Wavelength range: 1560 to 1680nm Performance Category Paramete rU TypeA TypeC Wavelength Tuning Range 1560 to 1680 Wavelength Setting Resolution Absolute Wavelength Accuracy *1, *2 ±15 ±3 Wavelengt h Characteristic s Absolute Wavelength Accuracy ( operating temperature) ±20...

  • Page 123: Regulations Conformity

    Tunable Semiconductor Laser TSL-550 9-2 Regulations conformity This product conforms the following standards. ● EMC: EN 61326-1:2013 EN55011:2009 + A1:2010 (Class A, Group 1) EN61000-4-2:2009 EN61000-4-3:2006 + A1:2008 + A2:2010 EN61000-4-4:2012 EN61000-4-5:2014 + A1:2017 EN61000-4-6:2014 EN61000-4-8:2010 EN61000-4-11:2004 + A1:2017 FCC 47 CFR Part15 Subpart B Class A (ANSI C63.4:2014) ICES-003 Issue 6 Class A (ANZI C63.4:2014)
  • Page 124 TSL-550 Operation Manual...

  • Page 125: Maintenance

    Connection of the optical fiber with dust and dirt on the end of the optical connector of TSL-550 cause loss of optical output, therefore, clean the connector periodically. The optical adapter arranged at the optical connector may be pulled out by removing fixation screws, therefore, remove it and clean the end of the optical connector.

  • Page 126: Replacing Fuses

    10 -4 Inspection/Calibration TSL-550 is warranted for a period of one year. Inspection and calibration on a regular basis (once every 12 months) is recommended.Please contact our Sales Department concerning requests for instrument inspection/calibration or consultation on other matters.

  • Page 127: Re-Packing And Shipping

    Tunable Semiconductor Laser TSL-550 Re-packing and Shipping Special attention for re-packing and shipping is required when you ship the instrument for repair or to a remote location. 11-1 Re-packing Please make sure that the original shipping box is used during the shipment, according to the following instructions.

  • Page 128: Packing Instruction

    TSL-550 Operation Manual 11-2 Packing Instruction 1 Please pack the instrument as shown below. < Side Angle > Absorb the shock during the shipment by holding the instrument with fi lms that works as a cushion from the top and the bottom 2 Close the box while applying the pressure.

  • Page 129: Troubleshooting

    Tunable Semiconductor Laser TSL-550 Troubleshooting Fault condition Cause Action No power Cord is unconnected. Connect cord properly. No fuse or fuse is blown out Open the fuse box lid and replace fuse. The unit is not turn off. Some electrical faults occur.
  • Page 130 Santec Photonics Laboratories. Our telephone number and facsimile number are shown below. However, we are not responsible for any trouble arising from your own repair or modification on this product.

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