GoPhotonics Presents Advanced Spatial Light Modulators for Optical Wavefront Control and Modulation

Posted  by GoPhotonics

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GoPhotonics has expanded its photonics product portfolio with a new selection of Spatial Light Modulators (SLMs), offering enhanced performance for real-time optical wavefront control. These devices enable precise manipulation of phase, amplitude, and intensity, supporting a wide range of applications including beam shaping, adaptive optics, holography, and laser processing.

The featured lineup includes high-resolution LCOS-based modulators, transmission-type SLMs, full HD systems, high-speed microdisplay solutions, and MOEMS-based micromirror devices-each designed to address specific performance and integration requirements.

Thorlabs EXULUS-HD3HP: High-Resolution LCOS Modulator for Beam Control

The EXULUS-HD3HP from Thorlabs is a liquid crystal on silicon (LCoS) spatial light modulator designed for high-precision phase modulation across a wavelength range of 640 nm to 1100 nm. It features a 1920 x 1200 pixel resolution with an active area of 15.42 mm x 9.66 mm and a fine pixel pitch of 8 µm.

This reflective SLM offers a phase modulation range of 2π (full wave) and π (half wave) at 1064 nm, along with an average reflectance of 80% and a fill factor exceeding 92%. It maintains a reflected wavefront distortion below 0.4λ (at 633 nm) and low RMS fluctuation under 0.15%, ensuring stable optical performance.

Operating at a 60 Hz frame rate, the device includes USB 2.0 control, an SMA connector, and an integrated thermistor. With robust thermal handling and flexible packaging options, it is well suited for beam shaping, optical trapping, femtosecond pulse shaping, holography, interferometry, and laser processing applications.

CNI-SLM-TRA-1.4: Ultra-High Resolution Transmission-Type SLM

The CNI-SLM-TRA-1.4 from CNI Laser is a transmission-type spatial light modulator operating across a wide wavelength range of 420 nm to 1200 nm. It features an ultra-high resolution of 4096 x 2160 pixels with a compact element size of 3.8 µm.

Based on amplitude-type modulation using LCD technology, this SLM enables precise control of optical wavefronts in transmissive configurations. Its high resolution and fine pixel structure make it ideal for optical information processing, adaptive optics, and optical computing applications.

CONIR-LASE-1080P: Full HD Phase Modulator with High Efficiency

The CONIR-LASE-1080P from Camoptics is a full HD spatial light modulator offering 1920 x 1080 resolution and an 8 µm pixel pitch. It operates across multiple wavelength bands including 450 nm - 700 nm, 1000 nm - 1100 nm, and 1500 nm - 1625 nm.

This device delivers phase modulation greater than 2π, a fill factor above 95%, and diffraction efficiency exceeding 85%, along with light utilization between 76.5% and 80%. With 8-bit output support, it is well suited for laser precision machining, optical communications, biomedical applications, and advanced light field modulation.

Kopin QXGA 0.83" M150 FLCOS: High-Speed Reflective Microdisplay SLM

The QXGA 0.83" M150 FLCoS Display from Kopin Corporation is a reflective spatial light modulator operating in the 430 nm to 700 nm wavelength range. It features a 2048 x 1536 resolution with an 8.2 µm pixel pitch and a fill factor above 94%.

This device supports high-speed operation with frame rates up to 100 Hz via video interface and 4.5 kHz via memory interface. It enables binary amplitude or phase modulation and integrates a built-in temperature sensor along with frame and mask functionality. Its compact architecture makes it suitable for industrial and scientific systems requiring fast and precise modulation.

Fraunhofer IPMS one-megapixel SLM: MOEMS-Based Micromirror Modulator

The one-megapixel SLM from Fraunhofer IPMS is a MOEMS-based spatial light modulator designed for ultraviolet operation at 248 nm. It features a 2048 x 512 micro mirror array with a pixel size of 16 µm and an active area of 33 mm x 8 mm.

Capable of operating at frame rates up to 2 kHz, the device uses thin-film micromirror fabrication on a CMOS backplane and supports up to 256 data inputs with voltages up to 25.5 V. With a mirror edge deflection of up to 180 nm, it enables precise light shaping for applications such as microlithography, laser direct imaging, metrology, optical computing, and laser surgery.

Enabling Next-Generation Optical Systems

With increasing demand for dynamic and programmable optics, spatial light modulators are becoming indispensable across research and industry. The expanded range available through GoPhotonics highlights the diversity of modern SLM technologies-from LCOS and LCD-based systems to high-speed FLCOS displays and MOEMS micromirror devices.

These solutions provide engineers and researchers with the tools needed to achieve high-resolution, high-speed, and application-specific optical modulation, supporting innovation across imaging, laser systems, communications, and advanced manufacturing.

Click here to learn more about spatial light modulators.


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