Large Fiber Collimators
Features
• Usable from 350nm to 2300nm
• 49 and 96 mm apertures
• Adjustable focus
• No epoxy in the optical path
• No fluorescence
• Low wavefront error
• Singlemode or PM fibers
• FC or FC/APC
Applications
• Free space communications
• Lidar, ranging
• Interferometry
• Remote sensing
For those needing BIG BEAMS, we have our High Performance Large Fiber Collimators, FC40, FC45 and FC100. They are all of a multi-element design that gives a highly collimated, clean Gaussian beam with low wavefront error.
All optics are AR coated to give high transmission. To accommodate all the different wavelengths that are now available for lasers, the spectrum is divided into 4 different regions. Focus is adjustable and linear with no rotation to allow you to adjust for your laser. Once your have adjusted for your wavelength you can lock it down. There is a second lock down mechanism for use against vibrations.
Body is made of stainless steel to minimize any thermal effects. Back end has an FC or FC/APC receptacle.
A sturdy stainless steel mount has threaded holes to mount the collimators to stages, tables and tripods.
Specifications
FC40
FC45
FC100
Aperture:
49 mm
49 mm
96.5 mm
Beam size*:
23 mm
33 mm
50 mm
Beam divergence (estimated):
<0.067 mrad
< 0.05 mrad
<0.03 mrad
Wavefront error, over 1/e2 points rms at 635nm:
<1/10 wave
< 1/10 wave
1/4 wave
Receptacle:
FC or FC/APC
FC or FC/APC
FC or FC/APC
Collimation:
Adjustable with no rotation
Adjustable with no rotation
Adjustable with no rotation
Locking:
yes
yes
yes
Housing material:
Stainless Steel
Stainless Steel
Stainless Steel
Weight:
0.83 kg (1.83 lb)
1.12 kg (2.46 lb.)
5.5 kg (12.23 lb)
*measured at 1/e2 points using fiber with NA = 0.13 at 635 nm
Ordering Information
Model #
Description
FC40-λ-FC
49 mm aperture, FC receptacle
FC40-λ-APC
49 mm aperture, FC/APC receptacle
FC45-λ-FC
49 mm aperture, FC receptacle
FC45-λ-APC
49 mm aperture, FC/APC receptacle
FC100-λ-FC
96.5 mm aperture, FC receptacle
FC100-λ-APC
96.5 mm aperture, FC/APC recep- tacle
Accessories
MT1.75SS
FC40 and FC45 mount for use on tables, stages or tripods
MT4.5SS
FC100 mount for use on tables, stages or tripods.
Tripod
Tripod
Use -VIS1 for any λ = 350nm to 600nm Use -NIR1 for any λ = 600nm to 1000nm Use -NIR2 for any λ = 1000nm to 1700nm Use -SWIR for any λ = 1500nm to 2300nm