Alpao High speed deformable mirror
Alpao High speed deformable mirror
deformable mirror alpao actuators
DM69 and DM97 specifications

ALPAO DM | High speed deformable mirrors

Number of actuators

69 or 97

Pitch (mm)

0.8 / 1.5 / 2.5 / 5.0

Number of actuators across a diameter

9 (DM69) 11 (DM97)

Active best flat (nm RMS, mechanical)

7 / 25

Settling time (ms at +/-10%, any stroke)

1.5 / 0.8

First resonance of the membrane (Hz)

400 / 800 / 600

Frequency at phase lag of 45° (Hz)

300 / 700 / 500

Linearity

>97%

Hysteresis

<2%

Description

ALPAO DMs are high speed deformable mirrors featuring large stroke, high dynamic motion and an excellent optical quality. ALPAO DMs are providing state-of-the-art performances which will meet and exceed your requirements for fast and accurate wavefront corrections.

Using high speed deformable mirrors, you can correct large aberrations and shape wavefronts with high precision, including high-order Zernike modes.
Such large amplitudes of deformation allow to use adaptive optics as never before. You can, for example, skip the separate tip-tilt mirror (astronomy), use the large defocus capability for fast z-scan (microscopy) or correct large eye-aberrations (ophthalmology).

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

Key Features

  • Large deformation: up to 90µm PV tip-tilt
  • High dynamic motion: settling time as low as 400µs at +/-10%
  • Excellent optical quality: active best flat <7nm RMS (<3nm RMS optional)
  • Almost no hysteresis: <2%
  • High linearity: >97%
  • Stability: <10nm RMS in open loop over hours

Adaptive Optics Loop

These high speed deformable mirrors are fully compatible with Wavetune AO software and therefore can be used in an adaptive optics loop with any HASO wavefront sensor.

Additional DMs typical features and benefits:

  • Operating temperature: -50/35°C
  •  Protected Silver coating (other coatings available)
  • Vacuum compatibility
  • Sub-nm resolution
  • No protective glass
  • Surface roughness <15Å RMS
  • LIDT for protected silver coating2: 880mJ/cm2 (@12ns,10Hz, 1064nm) / 50W (CW @ 1064nm)
  • MTBF: 1011 cycles
  •  Square grid-pattern except for large size DM (hexagonal pattern)

For more deformable mirrors, visit our deformable mirror page here.

ALPAO DMs – High speed deformable mirrors

ALPAO DMs are high speed deformable mirrors featuring large stroke, high dynamic motion and an excellent optical quality. ALPAO DMs are providing state-of-the-art performances which will meet and exceed your requirements for fast and accurate wavefront corrections.

Using high speed deformable mirrors, you can correct large aberrations and shape wavefronts with high precision, including high-order Zernike modes.
Such large amplitudes of deformation allow to use adaptive optics as never before. You can, for example, skip the separate tip-tilt mirror (astronomy), use the large defocus capability for fast z-scan (microscopy) or correct large eye-aberrations (ophthalmology).

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

Key Features

  • Large deformation: up to 90µm PV tip-tilt
  • High dynamic motion: settling time as low as 400µs at +/-10%
  • Excellent optical quality: active best flat <7nm RMS (<3nm RMS optional)
  • Almost no hysteresis: <2%
  • High linearity: >97%
  • Stability: <10nm RMS in open loop over hours

Adaptive Optics Loop

These high speed deformable mirrors are fully compatible with Wavetune AO software and therefore can be used in an adaptive optics loop with any HASO wavefront sensor.

Additional DMs typical features and benefits:

  • Operating temperature: -50/35°C
  •  Protected Silver coating (other coatings available)
  • Vacuum compatibility
  • Sub-nm resolution
  • No protective glass
  • Surface roughness <15Å RMS
  • LIDT for protected silver coating2: 880mJ/cm2 (@12ns,10Hz, 1064nm) / 50W (CW @ 1064nm)
  • MTBF: 1011 cycles
  •  Square grid-pattern except for large size DM (hexagonal pattern)

Specifications – DM69 and DM97

 

DM69 and DM97 specifications

Electronics specifications

  • Resolution: 16 / 14 bits
  • PC connection: USB / Ethernet
  • Power consumption: <150W
  • Power supply: from 110 to 250V AC, 50 to 60Hz
  • Weight: 4kg (9pounds)
  • Dimensions (L x l x h): 31.5 x 23.5 x 13.5cm (12.4 x 9.3 x 5.3 inches)
  • Operating temperature: 0 to 35°C
  • Cable length 4 (power supply, PC to drive electronics, drive electronics to DM): 2m ­ 6.5 foot
  • Analog response time:  < 10µs
For more deformable mirrors, visit our deformable mirror page here.
Number of Actuators

69, 97

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