ALPAO Hi-Speed DMs are based on continuous reflective surface motioned by magnetics actuators. They feature large strokes, linearity and fast settling time to meet and exceed your requirements for fast, accurate wavefront correction.
  

KEY FEATURES:

• Large deformation:  
Up to 60 μm optical deformation (peak to valley): to correct large amplitude aberrations.  
Up to 3.0 μm optical deformation (inter actuator): to correct high spatial-frequency aberrations.  
 
High dynamic motion: 
Settling time as low as 1.0 ms within +/-5%.  
 
Excellent linearity and low hysteresis: 
Non linearity error < 3%

Deformable mirror logo
Hi-Speed deformable mirror

DEFORMABLE MIRRORS (DM)

0.8 mm
DM37
-15

DM52
-15

DM69
-15

DM97
-15

DM277
-15

DM52
-25

DM88
-25

DM241
-25

DM97
-08

Pitch
1.5 mm
2.5 mm
97
Number of actuators
37
52
69
97
277
52
88
241
7.2
Pupil diameter (mm)
7.5
9.0
10.5
13.5
24.5
15.0
20.0
37.5
80 µm
Wavefront tip/tilt stroke (PtV)
60 µm
25 µm
Wavefront inter-actuator stroke
> 24 µm
Wavefront 3x3 stroke (PtV)
> 15 µm
7.0 nm
Mirror best flat (RMS) (1)
> 400*
Bandwidth (Hz) (2)
> 750*
> 500*
Typical AO loop frame rate (kHz)
2.0 ms*
Settling time (at +/-5%)
< 1%
Hysteresis error
< 3%
Non-linearity error
Protected Silver
Coating (3)
10 to 35 °C
Operating temperature (4)
1.0 ms*
2.0 ms*
< 4.0
< 7.5
< 5.0
*  Higher bandwidth (more than 2.0kHz) and lower setttling time available on custom DM.
(1)  in close loop
(2)  first resonance of the membrane
(3)  other coating available
(4)  for CE marking
50 µm
30 µm
40 µm
 > 3.0 µm PtV
ALPAO: Deformable mirror and adaptive optics systems.