Exploring the loading sequence of the phase light modulator to suppress the zero-order diffraction beam

Cuiling Gong; Bing Ouyang

doi:10.1117/12.3001564

13 March 2024 Exploring the loading sequence of the phase light modulator to suppress the zero-order diffraction beam

Cuiling Gong, Bing Ouyang

Proceedings Volume 12900, Emerging Digital Micromirror Device Based Systems and Applications XVI; 129000E (2024) https://doi.org/10.1117/12.3001564
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

Suppressing zero order diffraction beam is important to improve the performance of pixelated phase-only spatial light modulator. This issue also impacts the performance of the Texas Instruments Phase Light Modulator (PLM). However, PLM has a unique loading sequence which includes a short fraction of time that the mirrors return to flat resulting in only zero-order diffraction (ZOD) pattern to be generated, followed by the intended computer-generated hologram (CGH) with the ZOD at a less intensity. In this paper, we will show the captured images of ZOD and CGH using a highspeed camera with high dynamic range. We employed a sequence subtraction approach to suppress ZOD using data collected from Texas Instruments 0.67” PLM EVM. This process can be used in conjunction with other ZOD suppression techniques. The experimental results are presented in the paper.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Cuiling Gong and Bing Ouyang "Exploring the loading sequence of the phase light modulator to suppress the zero-order diffraction beam", Proc. SPIE 12900, Emerging Digital Micromirror Device Based Systems and Applications XVI, 129000E (13 March 2024); https://doi.org/10.1117/12.3001564

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