Deformable mirrors

ALPAO Deformable Mirrors are based on continuous reflective surface motioned by magnetic actuators. 

 They feature large strokes, high dynamic motion and an excellent optical quality to meet and exceed your requirments for fast and accurate wavefront correction.

 

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Download DM datasheet

 

Key features

deformable mirror motion transp
hi speed deformable mirror 97 15 zernike
Large deformation 
  • • Up to 80μm optical deformation (peak to valley): to correct large amplitude aberrations.
  • • Up to 5.0μm optical deformation (inter actuator): to correct high spatial-frequency aberrations.
Highly dynamic motion:
  • • Settling time as low as 500µs at +/­10%. 
Optical quality
  • • Active best flat as low as 7nm RMS.

Specifications

 
Number of actuators
Pupil diameter (mm)
Pitch (mm)
Number of actuators accross a diameter
Active best flat (nm rms)
Tip/tilt stroke (μm PV, wavefront)
Settling time (ms at +/-10%, any stroke)
First resonance of the membrane (Hz)
DM69 69 10.5 1.5 9 7 60 0.8 800
DM97-08 97 7.2 0.8 11 80 1.5 400
DM97-15 13.5  1.5  60 0.8  800 
DM97-25 22.5  2.5  40 1.5  600 
DM97-501 45  5.0  40 1.5 600 
DM192 192 22.5   1.5  16  15 0.5  2000 
DM241 241 37.5  2.5  17  40 1.5  600 
DM292 292 28.5   1.5  20  15 0.5  2000 
DM468 468 33  1.5  24  12 0.5  2000 
DM820 820 45  1.5  32  12 0.5  2000 
DM32281 3228 93  1.5  64  10 0.5  2000 
DMX371 37 100 20 7 30 50 2 500
DMX611 61 130 20 9 50 2 500
DMX851 85 170 20 11 50 2 500

Note 1: preliminary specifications

 

Customize your DM

  • • Other coatings: gold, aluminium or dielectric for higher LIDT
  • • Large-stroke, high speed or high optical quality options provide additional specific features (datasheet)
  • • High-stability option provides increased open-loop performances
  • • Trigger to synchronise sharply the hardware of your system 


Typical features

  • • Operating temperature: -10/35°C
  • • Protected Silver coating
  • • Vacuum compatibility
  • • Sub-nm resolution
  • • No protective glass
  • • Surface roughness <15Å RMS
  • • Wavefront interactuator stroke >5.0μm PV 
  • • MTBF: 1011 cycles
  • • Few Watts average power dissipation
  • • <10nm RMS open loop stability over several hours
  • • Thin and flexible cables
  • • Square grid-pattern except for large size DM (hexagonal pattern)
 
fitting simulator


Simulator
 

Discover our fitting simulator

Technology

deformable mirror technology animation transp

This adjacent scheme shows our unique technology:

  • • menbrane is in red
  • • coils in yellow
  • • magnets in grey
  • • springs in blue 

By applying a current in the coils, the magnets are moved up and down to deform the membrane.

Let's focus on your needs:

  • • More actuators? Up to 64x64 is available.
  • • Large quantity? Ask for our low price OEM DM.
  • • Faster or larger stroke? Every parameter can be customized.
  • • A larger pitch for a larger pupil? Ask for your DM.

 

 Contact us for more information