Twist-On Collimators for VIS-NIR (425 nm – 1550 nm)
Twist-On Collimators connect quickly to FC or SMA connectorized fiber cables to produce a collimated beam.
Twist-On Collimators contain a micro lens that is designed for diffraction-limited performance. Both surfaces of the lens are antireflection coated, with >98% transmission at the peak wavelength.
Focal compensation for different wavelengths is achieved by a simple hand adjustment of the ne-threaded spring loaded focusing barrel.
|Catalog Number||Focal Length||Output Beam Diameter||Clear Aperture||Numerical Aperture|
|FCC-2-λ||2 mm||0.5 mm||1.5 mm||0.30|
|FCC-5-λ||5 mm||1.0 mm||2.3 mm||0.25|
|FCC-8-λ||8 mm||1.6 mm||3.3 mm||0.22|
λ: When ordering, specify wavelength for AR coatings
Twist-On Collimators are available with a choice of different focal length Lenses as follows:
|Connector||Focal Length||Fiber Type||Best Collimation
|FC||2 mm||SM||2 cm to 50 cm|
|FC||5 & 8 mm||SM||5 cm to 1 m|
|SMA||5 & 8 mm||MM||1 cm to 2 m|