Spatial Light Modulator SLM-200

Reflective LCOS (Phase only)

Santec’s reflective LCOS (liquid crystal on silicon) is an advanced spatial light modulator for full high resolution applications. The Full-high definition (Full-HD) resolution, 10-bit (1024 gray levels) and excellent phase stability (~0.002π rad) make ultra-fine light modulation possible for various applications.

SLM-200 Separate type


■User-friendly DVI interface

User-friendly DVI interface

■High resolution: 10-bit (1024 gray levels)

High resolution

■Ultra-low phase noise: ~0.002π rad

Ultra-low phase noise

■Super flatness available: λ/40 @633 nm

The flatness of the LCOS can be λ/40 with the accompanying lookup table.
Super Flatness available



SLM-200 Specifications
Operating wavelength range 450-1600 (User specified) nm
AR coat Option -01 -02 -03 -04 -12 -14
AR coat range 450-550 750-850 1000-1100 1500-1600 400-800 450-550/
AR coat reflectance <=0.5 <=1.5 <=0.6 % AOI=0 degree
Panel size (H)15.42 x (V)9.66 mm Active area
Pixel resolution (H)1920 x (V)1200 Pixel
Pixel size / pitch 7.8 / 8.0 μm
Panel reflectivity Typ. >80 % Depending on specified wavelength range
Aperture ratio 95 %
Gray level 10 (1024) Bit
DVI video frame rate 60 or 120 Hz Factory default setting
LCOS drive frequency 1200 Hz
Phase depth > 2π rad. <1550 nm
Phase fluctuation Typ. <0.001π rad.
Response time Typ. 300 ms
Signal format DVI / USB3.0 10-bit using RGB 8-bit, 3 colors
Operating temperature 15 – 35 degC
Storage temperature 0 – 40 degC
Optical power handling Typ. 10 W/cm2 @1550 nm, CW,2.0 mm beam diameter
Dimensions 117.6 x 117.6 x 33.7 mm
Control Software GUI Software for Windows

AR coating range options and reflection example
AR coating range options and reflection example



■LASER processing and High power resistance

Below are examples for the high power resistance. We can do simulation with other conditions.

Confirmed examples of high power resistance

■Wavefront Correction

“l/40” can be achieved using Michelson Interferometer with Shack-Hartmann sensor.

Optical system and example of wavefront correction


SLM-200 can make the holography with our exclusive GUI.

Optical system and example of Holography

■Optical vortex

SLM-200 can be used to generate optical vortex and be utilized for optical tweezer and SDN (Space division multiplexing) applications.

Beam profile examples of optical vortex



  • Beam steering
  • Wavefront correction
  • Pulse/Beam shaping
  • Diffractive optics
  • Optical tweezer
・Laser Processing Machine (※)

We are developing the SLM incorporated Laser Processing Machine with Professor Yamamoto and
Associate Professor Taira, faculty members at the Institute for Molecular Science.
Associate Professor Taira has developed the High power compact microchip laser, which is suitable for laser processing with one shot method.
The technique is constantly refined, adapting emerging technologies and techniques to provide higher efficiencies and
Laser processing machine

<Advantages and Disadvantages of Different Laser Processing Methods>
Merit and demerit according to the method of Laser processing