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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Key features
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
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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) |
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|---|---|---|---|---|---|---|---|---|---|
| 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 | 21 | 2.5 | 40 | 1.5 | 600 | ||||
| DM97-501 | 45 | 5.0 | 40 | 1.5 | 600 | ||||
| DM192 | 192 | 21 | 1.5 | 16 | 15 | 0.5 | 2000 | ||
| DM241 | 241 | 37.5 | 2.5 | 17 | 40 | 1.5 | 600 | ||
| DM292 | 292 | 27 | 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 | 30 | 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)
Simulator
Discover our fitting simulator
Technology
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.