Two-dimensional acousto-optic SLM

Alexander I. Chizhikov; Vladimir Y. Molchanov; Natalya F. Naumenko; Konstantin B. Yushkov

doi:10.1117/12.2638227

19 December 2022 Two-dimensional acousto-optic SLM

Alexander I. Chizhikov, Vladimir Y. Molchanov, Natalya F. Naumenko, Konstantin B. Yushkov

Proceedings Volume 12318, Holography, Diffractive Optics, and Applications XII; 123181J (2022) https://doi.org/10.1117/12.2638227
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

A prototype of two-coordinate spatial light modulator (SLM) based on acousto-optic diffraction in KY(WO4)2 monoclinic crystal is proposed. The SLM design is based on a special configuration of isotropic Bragg diffraction in monoclinic crystals, which used autocollimation of the acoustic beams and operation with unpolarized light. This enables a unique design of a two-coordinate Bragg cell, which can be used as a monolithic X-Y deflector or as an SLM. Experimental results and limitations of the prototype performance are discussed in the report. Overall efficiency over 50% at 4 W of driving RF power has been demonstrated for the laser wavelength of 532 nm. Optical modulation rise/fall time is ~220 ns/mm for each coordinate.

Conference Presentation

Citation Download Citation

Alexander I. Chizhikov, Vladimir Y. Molchanov, Natalya F. Naumenko, and Konstantin B. Yushkov "Two-dimensional acousto-optic SLM", Proc. SPIE 12318, Holography, Diffractive Optics, and Applications XII, 123181J (19 December 2022); https://doi.org/10.1117/12.2638227

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