Holoeye PLUTO-2.1-NIR-118 Pure-Phase Spatial Light Modulator

Overview

The Holoeye PLUTO-2.1-NIR-118 is a high-resolution, pure-phase spatial light modulator (SLM) engineered for precision wavefront shaping in near-infrared (NIR) optical systems. Based on liquid crystal on silicon (LCoS) microdisplay technology, it delivers deterministic phase modulation across a full 1920 × 1080 active pixel array with an 8 µm pixel pitch—enabling diffraction-limited beam control and high-fidelity holographic reconstruction. Unlike amplitude-modulating devices, the PLUTO-2.1-NIR-118 operates exclusively in pure-phase mode, minimizing absorption losses and maximizing optical efficiency in interferometric, adaptive optics, and computational imaging applications. Its operational bandwidth is optimized for the 730–950 nm spectral window—covering key NIR laser lines including 785 nm, 808 nm, 830 nm, and 940 nm—making it suitable for spectroscopic sensing, structured illumination microscopy, and optical trapping setups where phase fidelity and temporal stability are critical.

Key Features

• 1920 × 1080 native resolution pure-phase LCoS SLM with 8 µm pixel pitch and >99% fill factor
• Calibrated phase response over 0–2π range at target NIR wavelengths, with RMS phase error <0.05π under stable thermal conditions
• USB-based gamma calibration unit enabling real-time adjustment of voltage–phase transfer function for wavelength-specific optimization
• HDMI/DisplayPort video interface supporting standard graphics card output in extended desktop mode; green-channel 8-bit grayscale addressing ensures precise phase map loading
• Thermal stabilization design with passive heatsinking, enabling continuous operation at 60 Hz frame rate without phase drift exceeding ±0.02π over 2 hours
• Compact, OEM-ready form factor (118 mm × 94 mm × 32 mm) with integrated mounting holes compliant with standard optomechanical breadboards (M4/M6)

Sample Compatibility & Compliance

The PLUTO-2.1-NIR-118 is designed for integration into laboratory-grade optical benches and industrial NIR instrumentation platforms. It accepts collimated, linearly polarized input beams with diameters up to 12 mm and supports both free-space and fiber-coupled configurations via optional beam-shaping optics. As a Class 1 laser product per IEC 60825-1:2014, it poses no inherent laser hazard when used with compatible NIR sources. The device conforms to CE marking requirements under the EU Electromagnetic Compatibility Directive 2014/30/EU and Low Voltage Directive 2014/35/EU. Manufacturing adheres to ISO 9001:2015 quality management standards. While not inherently GLP/GMP-certified, its reproducible phase calibration protocol and traceable USB-based gamma tuning support audit-ready documentation for regulated R&D environments requiring instrument qualification (IQ/OQ/PQ).

Software & Data Management

Holoeye provides the SLM Display Software Suite (v3.2+), a Windows-based application supporting phase pattern generation, real-time preview, and batch loading of binary or grayscale phase maps (BMP, PNG, TIFF). The software includes built-in algorithms for Gerchberg-Saxton iteration, kinoform synthesis, and Zernike polynomial decomposition—enabling rapid prototyping of custom wavefronts. All gamma calibration parameters are stored as machine-readable JSON files with timestamps and user-defined metadata, facilitating version-controlled experiment replication. For automated workflows, a documented C++/Python SDK enables direct integration with LabVIEW, MATLAB, and Python-based control frameworks (e.g., PySerial + OpenCV). Audit trails—including pattern load timestamps, gamma settings, and USB handshake logs—are exportable in CSV format, aligning with basic data integrity expectations under FDA 21 CFR Part 11 Annex 11 principles for non-clinical analytical instrumentation.

Applications

• Dynamic holography and computer-generated hologram (CGH) projection in NIR metrology
• Adaptive optics correction in multi-photon microscopy and ophthalmic imaging systems
• Structured illumination for hyperspectral image acquisition and spectral unmixing
• Optical tweezers and particle manipulation using programmable intensity and phase gradients
• Beam shaping for fiber coupling optimization and laser material processing alignment
• Quantum optics experiments requiring high-fidelity spatial mode control (e.g., Laguerre-Gaussian mode generation)

FAQ

Is the PLUTO-2.1-NIR-118 compatible with third-party phase retrieval or wavefront sensing software?
Yes—its standardized 8-bit grayscale input and HDMI/DP interface enable seamless integration with commercial wavefront sensors (e.g., Shack-Hartmann systems from Thorlabs or Phasics) and open-source tools such as PyZernike or HCIPy.
Does the device support real-time phase modulation at full 60 Hz with arbitrary patterns?
Yes, provided the host GPU sustains ≥60 fps output in extended display mode and phase maps are pre-rendered or streamed via DMA-capable frame buffers.
Can the gamma calibration be performed in situ for custom NIR wavelengths outside the 730–950 nm range?
No—the hardware is factory-aligned for optimal performance within the specified band; operation beyond this range compromises phase linearity and contrast ratio.
What thermal management is required during extended operation?
Passive cooling suffices under ambient lab conditions (20–25°C); active airflow is recommended if ambient exceeds 30°C or if mounted in enclosed enclosures.
Is firmware update capability available via USB?
Firmware updates are performed exclusively through Holoeye’s authorized service channels and require proprietary authentication; end users cannot modify low-level timing or driver logic.