Wavefront Sensors

ALPAO Shack–Hartmann (SH) wavefront sensors (WFS) are the only range of WFS specifically designed for Adaptive Optics.

Key features

They feature excellent performances to fit with every adaptive optics system. Sensitivity, speed and spectral range can be chosen depending on your needs. All ALPAO SHs perfectly fit with ALPAO DMs and ALPAO software and real time computers.

  • • Optimized for AO: the number of subpupils adaptated to the fried configuration of the recommended DM, latency minimized
  • • Speed: frequency up to 5kHz, latency as low as 7.4μs
  • • High sensivity: Photon flux for SNR=1 down to 3 photons/frame/sub-aperture (EMCCD)

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Download WFS datasheet

Specifications

Number of microlenses
Acquisition frequency (Hz)
Photons for SNR=1
(ph./fr/sub-pupils)
Tip-tilt / defocus
range (μm PV)
Repeatability (nmRMS)
Spectral range
Interface
SH-CMOS 50x50 99 100 80/20 2 VIS USB
SH-EMCCD 16x16 502 3 26/7 CL
SH-CMOS-fast 23x23 5670 1000 50/12
SH-EMCCD-fast-69 8x8 1838 3 13/4 2 VIS CL
SH-EMCCD-fast-97 10x10 1004 3 16/4
SH-EMCCD-fast-292 19x19 2067 4 32/9
SH-EMCCD-fast-468 23x23 2067 4 39/11
SH-InGaAs-69 8x8 3000 1500 29/7 2 NIR CL
SH-InGaAs-97 10x10 2000 1500 40/10
SH-InGaAs-292 19x19 3150 300 16/4
SH-InGaAs-468 23x23 2000 300 23/6

sh cmos


SH-CMOS

SH-CMOS-fast
SH EMCCD SH InGaAs 69 97


SH-EMCCD fast-69/97

SH-InGaAs-69/97

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