SLM–DMD hybrid architecture for wide-field-of-view beam steering with suppression of unwanted diffraction orders
Year: 2026
Type: article
Abstract: Wide field of view (FOV) laser beam steering is a critical function for various applications, including LiDAR and holographic displays. Beam steering with a pixelated micro electro mechanical system (MEMS) Spatial Light Modulator (SLM), specifically a phase light modulator (PLM), enables quasi-solid-state laser beam steering. However, it suffers from unwanted diffraction orders along with a limited FOV. In this paper, we present a hybrid beam and image steering optical architecture to overcome these limitations. The optical architecture employs a single Digital Micromirror Device (DMD) for two purposes: suppressing unwanted diffraction orders and diffractively enhancing the angular throw of PLM. The dual MEMS-based and quasi-solid-state beam steering provides an alternative to applications where a solid-state optical phased array is the only viable option.
Source: Optics Express
DOI: 10.1364/oe.614338
Authors: Xianyue Deng, Yuzuru Takashima
Language: English
Subfield: Media Technology
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W7223178565