A spatial light modulator (SLM) is an electrically programmable device that modulates light according to a fixed spatial (pixel) pattern. SLMs have an expanding role in several optical areas where light control on a pixel-by-pixel basis is critical for optimum system performance.

The “large” format 512×512 SLM is an XY format SLM that offers dynamic control of incident light with a large 12.8×12.8mm active area. Employing a high voltage backplane to drive high optical switching speeds, this SLM is ideal for high power applications requiring fast response times.


This datasheet is pending


Unique Features:

  • Large format for high power applications
  • High voltage backplane for fast optical switching
  • High fill factor for better optical efficiency
  • High backplane refresh rate for exceptionally low ripple
  • Large pixels to reduce pixel-to-pixel crosstalk
Standard Design Wavelengths532, 635, 785, 1064, & 1550 nm
Array size12.8 x 12.8 mm
Zero-order diffraction efficiency88% (maximum)
External windowAR coated, Ravg < 1.25% @ λ
Fill factor (standard)0.96
Format512 x 512 (262,144 active pixels)
Phase stroke (double pass)2π @ λ
Pixel pitch25 x 25 μm
Phase rippleAs low as 0.1%, based on SLM configuration
Reflected wavefront distortion (RMS calibrated)λ/7 - λ/12
Liquid crystal response time, 10-90% (standard)30 - 100 ms
Max. liquid crystal switching frequency (standard)10 - 33 Hz
Liquid crystal response time, 10-90% (hi-speed)2 - 15 ms
Max. liquid crystal switching frequency (hi-speed)67 - 500 Hz