What Is A Tunable Laser Source (Tls); Littrow External Cavity Laser (Ecl) Geometry; Components - THORLABS INTUN Series User Manual

I NTUN Series s Tunable Las
C Chapter r 2
I n order to en nsure that the
regarding han r ndling and ope
2.1. 2 Wha at is a Tuna
A A Tunable La ser Source (T
over a certai o n wavelength
d depending on the model ch
s sweep oscilla ator. Although
Laser), ECL L actually refer
n number of pro oducts than E
TLS's are fre T equently used
f function of w wavelength. E
c characterize a a TLS (e.g., w
a and sweep ch haracteristics)
2 2.2. Littro ow Externa
A As shown belo ow in Figure
la aser (ECL) ge eometry. This
f free tuning ran nge. The INT
2.3. 2 Com mponents
•
ter: The optic
Shutt
handl e.
•
m: The beam e
Beam
•
30 m m Cage Sys
integr ration into a 3
740-TL1300-B 7 B-B Manual In
sers
Descripti D ion
INTUN syste em will opera
eration stated d within this m
able Laser Source (T
TLS) is a lase er whose outp
h range. The e INTUN las
hosen. The T LS can be tho
h the acrony ym TLS is so
rs to the tec hnical design
CL, since an ECL is not ne
d in various m measurement
Each applicat ion requires
wavelength ra ange, side m
).
al Cavity L Laser (ECL
1, the INTUN N TLS is base
s tuning arran ngement allow
UN configura ation offers a l
Figu ure 1
cal port is p rotected by a
exiting the IN TUN laser is
stem: The IN NTUN laser is
30 mm cage s system. Fiber
ntun TL1300- B
ate correctly a and meet the
manual must b be met.
LS)?
put waveleng gth can be sw
er's tuning r range typical
ought of as a n optical equ
ometimes us sed interchan
n of the lase er itself. Ther
ecessarily tun nable.
t applications s to record s
detailed kno owledge of so
ode suppress sion levels, s
L) Geometr ry
d on a semico onductor lase
ws for high ou utput power w
lower noise fl oor and a rob
Sche ematic of the e INTUN sys
a mechanica al shutter, wh
collimated wi ith a diameter
s equipped w with four threa
coupling is no ormally done
Chapter 2: D
stated specif fications, req
wept (continuo ous or random
ly varies from m 15 nm to
ivalent to the conventional
ngeably with ECL (Extern
refore, TLS e encompasses
some quantity y (e.g., inten
ome or all o of the param
spontaneous noise levels,
er mounted in n Littrow exter
while maintain ning a large m
bust cavity.
tem
hich slides si deways using
r of less than 5 mm.
aded 4-40 ho oles, allowing
using the ca ge system.
Description
uirements
m access)
150 nm,
l electrical
nal Cavity
s a larger
sity) as a
eters that
linewidth,
rnal cavity
mode-hop-
g a small
g for easy
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