Spatial Light Modulators (SLM) – High-precision technology for modern optics

Discover high-quality solutions for the precise control and modulation of light waves in our “Spatial Light Modulator” category. Whether in research, industrial processes or medical technology – a modern SLM offers you maximum control over the phase and amplitude distribution of the light. Here you can find out everything about how spatial light modulators work, their areas of application and their advantages.

What is a Spatial Light Modulator?

A Spatial Light Modulator (SLM) is an optical component that changes the spatial distribution of light in real time. The incident light can be modulated pixel by pixel using liquid crystals or micromirrors, which enables highly precise control. This makes it possible, for example, to shape laser beams, create holographic projections or implement adaptive optics systems.

• phase modulation: Influences the optical phase and enables, for example, the correction of wavefront errors.
• amplitude modulation: Regulates the intensity of light at different pixels.

Hybrid-SLM: Combines phase and amplitude modulation in one device and thus offers maximum flexibility.

Applications of Spatial Light Modulators

1. Science and Research

In research, SLMs are used to shape laser beams, create high-resolution holograms or carry out complex optical experiments. The precise control of wavefronts can significantly improve advanced imaging techniques (e.g. in microscopy).

2. Industry and Manufacturing

Support in industrial manufacturing Spatial Light Modulators e.g. in laser material processing or in quality assurance. An SLM can adjust laser beams quickly and flexibly, which is a great advantage for applications such as 3D printing, material structuring or highly specific surface treatments.

3. Medical technology

Medical technology benefits from SLM solutions in optical diagnostic and therapeutic procedures. Adaptable laser profiles enable gentle yet highly precise interventions. For example, targeted laser treatments can be carried out or three-dimensional tomography systems can be optimized.

Different SLM construction methods

1. liquid crystal SLM (LC-SLM)
2. micromirror SLM (DMD/DLP)
3. Electro-Optical SLM

Depending on the application, you can choose the appropriate SLM model to optimally cover the parameters that are important to you (e.g. resolution, response time and wavelength range).

installation and commissioning

Most SLMs are delivered as a complete system with driver electronics and software. Pay attention to the following points:

• Drivers & Software: User-friendly software facilitates configuration and allows loading of self-created phase patterns or amplitude profiles.
• interfaces: USB, HDMI or PCIe are often available. Check whether the connections are compatible with your measurement or production environment.
• Cooling & Stability: Especially in high-power laser applications, thermal effects can affect performance. Make sure your SLM system has an efficient cooling design.

Find the right Spatial Light Modulator now

Whether for laser processing, research or medical technology – in our range you will find Spatial Light Modulators different designs and specifications. Use our expert advice to get the optimal system for your application and benefit from suitable accessories and comprehensive service.

To our SLM products

Tip: Would you like to optimize your production processes or take your research to the next level? Our team of experts will be happy to advise you personally. Contact us!