Key companies covered as a part of this study include Hamamatsu, HOLOEYE, Santec Holdings, Thorlabs, KOPIN, Laser Components, Fraunhofer IPMS, Meadowlark Optics, Jenoptik, Jasper Display, etc. 14 Spatial Light Modulator manufacturers listed. Narrow down on the list of companies based on. Spatial light modulator (SLM) is a general term describing devices that are used to modulate amplitude, phase, or polarization of light waves in space and time. The use of LC. Use this spatial light modulators buying guide to compare major types, define selection criteria, and find suppliers: Professional purchasing of high-value photonics products is a substantial responsibility, where a structured decision-making process is essential. Santec Holdings Corporation, 3. SLMs find applications in fields like laser optics, holography, and microscopy.