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60FC-L-4-M25-24

Fiber Collimator for collimating large beam diameters

60FC-L-4-M25-24
60FC-L-4-M25-24
60FC-L-4-M25-24
60FC-L-4-M25-24
60FC-L-4-M25-24

Features

The fiber collimator is designed for collimating radiation exiting from an optical fiber cable or used in reverse for coupling a beam into an optical fiber cable.
  • Large beam diameters: Focal length 25 mm
  • Optics type: Doublet optics, Achromatic
  • AR-Coating: 400 - 1000 nm
  • Inclined coupling axis, FC-APC connection
  • Front connector accepts attachment optics

Description

The fiber collimators series 60FC-L is designed for collimating radiation exiting optical fiber cables with high pointing stability and large beam diameters. They can also be used in reverse-mode as fiber incouplers. They are suitable for single-mode and polarization-maintaining fiber cables leading to collimated beams with a Gaussian intensity profile. Please note that for multimode collimation the intensity profile is not Gaussian and depends on certain fiber and radiation properties.
The features of the collimator type 60FC-L include:

Optics
The achromat with focal length 25 mm is designed for collimating multiple wavelengths. It is AR-coated from 400 - 1000 nm. It is corrected for spherical aberrations and designed in such a way that it leads to a diffraction-limited beam with an M2 < 1.05. Additionally it is corrected for chromatic aberration so that there are certain wavelengths or wavelength ranges where the focal length does not vary significantly. It is not suitable for UHV applications.

Adjustment of focus
The distance between fiber end-face and collimating optics is manually by shifting the lens tube. The lens does not rotate when adjusting the focus. The final focus setting is locked by means of two radially arranged clamping screws. Additionally attachment optics of series 60FC-L can be mounted to the front of the collimator.

Optimum lens performance
The angled polish of connectors of type APC is considered by a pre-angled mechanical coupling axis that compensates the beam deflection and you can use the lens centrically. This minimizes aberrations simply resulting from a non-ideal beam path through the lens.

Connector Type
The fiber collimator is equipped with a FC-APC type receptacle. Because of the spring-loaded fiber ferrule the fiber collimator has an additional grub screw to increase pointing stability.

Material
The fiber collimator type 60FC-L is made from nickel silver/aluminium (standard)

Mounting
The collimators series 60FC-L all possess a flange for low-strain mounting e.g. using the clamp collars series CC.

Technical data

60FC-L-4-M25-24

Series
60FC-L
Order Code
60FC-L-4-M25-24
Focal length
25 mm
AR coating
24
Wavelength range
400 - 1000 nm
Lens type
Doublet optics
Correction
Achromatic
Numerical aperture
0.28
Clear aperture
14 mm
Connector type
FC-APC
Outer diameter
Ø 25/28 mm
Length
42 ± 2 mm
Tilt adjustment
No
Front fitting
Ø 19.5 mm
Housing material
Nickel silver/Aluminium
Weight
42 g
UHV compatible
No
Suitable for multimode
Yes
Note
Dimensions (for a complete dimensional drawing please refer to the downloads section)

Downloads

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Accessories

50HD-15
Hex key WS 1.5
9D-12
Screwdriver WS 1.2
Attachment optics series 13

to attach in the front of collimators with system mount Ø19.5 mm