25M-M50-37

Micro Focus Optics

Micro Focus 25M
Micro Focus 25M
Micro Focus 25M
Micro Focus 25M

Features

Micro focus optics used for focussing the collimated radiation exiting a fiber collimator.
  • Attachment optics for fiber collimators type 60FC-L or 60FC-T with outer diameter Ø 32 mm
  • Focal length f' = 50 mm
  • AR Coating 750 - 1550 nm
  • Achromatic correction

Description

The Micro Focus Optics type 25M-M50-37 is used to generate a small laser spot from the collimated radiation of a fiber collimator.
The size of the spot and its Rayleigh range is determined by the fiber properties and by the focal lengths of the fiber collimator and of the micro focus optics. For single-mode fibers the Gaussian intensity distribution and beam shape are maintained.
It is designed for the fiber collimators series 60FC-L or 60FC-T with an outer diameter Ø 32 mm.

Adjustment:
In order to change the working distance of the Micro Focus Optics the lens position of the adjacent collimator has to be readjusted.

Housing material:
As standard, the housing of the Micro Focus Optics is made of nickel silver.
For amagnetic fiber collimators Schäfter+Kirchhoff offers Micro Focus Optics with housings made of titanium.

Technical data

25M-M50-37

Series
Order Code
25M-M50-37
Focal length
50 mm
Working distance A
42.1 ± 0.2 mm
AR coating
37
Wavelength range
750 - 1550 nm
Lens type
Doublet optics
Correction
Numerical aperture
0.34
Clear aperture
Ø 23.4 mm
Outer diameter
Ø 32 mm
Length B
12 mm
System mount
M27 x 0.5 mm
Front fitting
-
Housing material
Black anodized aluminum
Weight
RoHS compliant

Dimensions (for a complete dimensional drawing please refer to the downloads section)

Downloads

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Accessories

Hex key WS 1.5