Compact Stabilized Light Sources Chapter 3: Product Overview
Page 6 CTN002682-D02
source main body. With the fiber coupler (focusing lens) removed, users can get
access to the roughly collimated beam after the 1
st
lens.
The SLS201L/SLS202L features a quick release mechanism allowing users to
easily remove and put back the fiber coupler, switching between a free space light
source and a fiber coupled one.
3.5. Optional Collimator
Thorlabs also provides optional collimator (not included in the package) for
SLS201L and SLS202L. As shown in Figure 5, the collimator works as an
alternative to the fiber coupler. It utilize the same focusing lens as in the fiber
coupler to focus the roughly collimated beam from the 1
st
lens inside the light
source main body into a 1mm pinhole. The pinhole clean up the beam and then
the beam is collimated again through a 3
rd
lens, giving a much better collimated
free space beam output.
Figure 5 Optional Collimator of SLS201L/SLS202L
Halogen Bulb
Lens
Lens