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| Coad | 671415 | Type | Spatial Light Modulator | |
| Panel Size (mm) | 15.36 x 9.60 | Wavelength(nm) | 500 - 1200 | |
| Refresh Rate (Hz) | 30 | Panel Reflectivity (%) | - | |
| Controller Dimensions | 164.0 x 108.0 x 93.76mm | Signal Format | - | |
| Pixel Pitch | 8.0μm | Resolution | 1920×1200 | |
| Response Time (Rise/Fall) | ≤33ms@1064nm / ≤23ms@785nm / ≤20ms@635nm / ≤17ms@532nm | Fill Factor | 0.956 | |
| Reflected Wavefront Error | λ/10@1064 nm λ/7@785 nm λ/6@635 nm λ/5@532 nm | Zero-Order Diffraction Efficiency | 82-88%@1064nm;71-80%@785nm;76-81%@635nm;76-84%@532nm | |
| Grayscale | - | Phase Depth | 2π | |
| Chip Type | LCoS | |||
A spatial light modulator (SLM) is an active device that leverages optical effects such as electro-optic, acousto-optic, magneto-optic, and photorefractive effects to dynamically modulate the optical parameters of a light field — including amplitude, phase, and polarization state — while encoding information to facilitate light field control.
The LBTEK spatial light modulator is based on reflective liquid crystal on silicon (LCoS) microdisplay technology. By means of electrical signal control, it enables pixel-level addressable free-phase modulation on the LCoS surface, allowing the generation of arbitrary two-dimensional phase patterns. The accompanying GUI software allows adjustment of the SLM’s phase response at different wavelengths and provides functions such as image input, dynamic display, and computer-generated holography. Additional operating modes can be found in the product manual.
The spatial light modulator provided by LBTEK is a device that utilizes the birefringence principle of liquid crystals to perform real-time phase modulation of light (and can also achieve amplitude modulation or a combination of both). It supports an active matrix display mode with a resolution of 1920×1200 (WUXGA), featuring a high fill factor and ultra-high phase stability. It is widely applicable in fields such as laser communications, holographic optical tweezers, optogenetics, neuroscience, microscopy, pulse shaping, wavefront correction, and astronomical adaptive optics.
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