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Liquid Crystal Spatial Light Modulators (SLM) – Modulation of ultrashort laser pulses

You can use Jenoptik liquid crystal light modulators to control optical characteristics safely and reliably without mechanical moving parts.

Liquid Crystal Spatial Light Modulator from Jenoptik
Liquid crystal light modulators are excellently suited for modulating the phase, amplitude or polarization state of a light wave. They are based on the electrical control of optical properties of a nematic liquid crystal layer.

An example of the capabilities of our liquid crystal laboratory is the SLM-S spatial light modulator based on a linear array of individually controllable strips. The modulators work for light in the 430 to 1600 nm wavelength range. They are equipped with a single-mask or a dual-mask array. The dual-mask array makes it possible to control the phase and amplitude simultaneously and independently.

Each of the 320 or 640 strips can be controlled separately with 12-bit resolution. All SLM-series liquid crystal modulators are easy to connect to your computer via USB.

Liquid Crystal Spatial Light Modulators (SLM) – Modulation of ultrashort laser pulses


  • Powerful: Single-pixel modulators and high-resolution spatial light modulators with a large array  for high laser power
  • USB interface: Easy to connect to your computer
  • Broad wavelength range: 430–1600 nm
  • User-friendly operation: Thanks to an extensive LabView command set, MATLAB and C libraries for the SLM-S modulators
  • Customized: Adapted to meet your individual requirements, for example with specific antireflection coating

Fields of Application

  • Laser and material processing: Pulse shaping of high-power and ultrashort pulse lasers
  • Chemistry: Coherent control
  • Analytics: Multidimensional microscopy and spectroscopy
  • Laser technology: Pulse compression
  • Optics: Simple solutions for modulating light, in particular laser light, in the VIS and NIR range
  • Photonics: Variable phase/amplitude masks are used for shaping of fs laser pulses whenever researching and implementing ultrafast processes


Jenoptik Liquid Crystal Light Modulators:

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