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Sales engineer
Arminas Butkus +370 5 219 4884
Variable reflectivity mirrors
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Variable reflectivity mirrors

Main features

 

  • Mirrors substrates fabricated from high-quality UV grade fused silica
  • Standard substrates dimensions are ⌀25,4x5 mm
  • Central reflectance from 15% to 35% at 1064 nm wavelength
  • Custom reflectance profiles, substrates material and dimensions are
    available upon request

 

Application examples

 

  • Laser cavity output coupler for unstable laser resonator
Request custom
  • Description
  • Standard specifications

4Lasers variable reflectivity mirrors provide circularly symmetric reflectance profile according to the super-Gaussian function with order of 2. These mirrors are favorable in high-power unstable laser resonators for their wide filling of the active medium and weak diffraction on hardedge aperture. Therefore, super-Gaussian variable reflectivity mirors contribute to better near- and far-field beam quality. It is worth to mention that variable reflectivity mirrors can be designed to have various reflectance profiles, such as linear, parabolic, Gaussian.

Variable reflectivity mirrors
Radius w0 2 mm
Gaussian order n 2
Substrate material UV grade fused silica
Clear aperture >85%
Face dimensions tolerance +0/-0,15 mm
Thickness tolerance ±0,25 mm
Parallelism error <30 arcsec
Protective chamfers <0,35 mm at 45°
Surface quality 20-10 S-D
Surface flatness <λ/[email protected],8 nm
Rear surface Antireflective coated
Laser induced damage threshold >6 J/cm2@1064 nm, 10 ns
Order your item
Material Dimensions Wavelength Central reflectivity Gaussian order SKU price quantity
UVFS
⌀25,4x5 mm
1064 nm
15% ± 1%
2
6539
460 €
UVFS
⌀25,4x5 mm
1064 nm
20% ± 1%
2
6540
460 €
UVFS
⌀25,4x5 mm
1064 nm
25% ± 1%
2
6541
460 €
UVFS
⌀25,4x5 mm
1064 nm
30% ± 1%
2
6542
460 €
UVFS
⌀25,4x5 mm
1064 nm
35% ± 1%
2
6543
460 €