Senior sales engineer
Arminas Butkus +370 5 219 4884
Variable reflectivity mirrors
INQUIRY FORM
Please fill out this field
Please fill out this field
Please fill out this field
Please fill out this field
Please fill out this field
Close
Close
Success!

One of our 4Lasers team members will contact you as soon as possible.

Go back to homepage

Variable reflectivity mirrors

Main features

 

  • Mirror substrates fabricated from high-quality UV grade fused silica
  • Standard substrate dimensions are ø25,4 x 5 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 View stock
  • Description
  • Drawing
  • Standard specifications

4Lasers variable reflectivity mirrors provide a circularly symmetric reflectance profile according to the super-Gaussian function with an 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 the hard-edge aperture. Therefore, super-Gaussian variable reflectivity mirrors contribute to better near- and far-field beam quality. It is worth mentioning 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/-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/8@632,8 nm
Rear surface Anti-reflective coated
Laser-induced damage threshold >6 J/cm2@1064 nm, 10 ns
Order your item
Material Dimensions Wavelength Central reflectivity SKU PRICE QUANTITY
UVFS
⌀25,4x5 mm
1064 nm
15% ± 1%
6539
Request
UVFS
⌀25,4x5 mm
1064 nm
20% ± 1%
6540
Request
UVFS
⌀25,4x5 mm
1064 nm
25% ± 1%
6541
Request
UVFS
⌀25,4x5 mm
1064 nm
30% ± 1%
6542
Request
UVFS
⌀25,4x5 mm
1064 nm
35% ± 1%
6543
Request