Study on encoding technique of phase-shifting unit based on LC-SLM

Yanmei Wu; Qinghe Song; Junchang Li; Jinbin Gui

doi:10.1117/12.755335

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4 January 2008 Study on encoding technique of phase-shifting unit based on LC-SLM

Yanmei Wu, Qinghe Song, Junchang Li, Jinbin Gui

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Proceedings Volume 6832, Holography and Diffractive Optics III; 68320T (2008) https://doi.org/10.1117/12.755335
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

Phase-shifting is one of key technologies in the digital holography or interferometry. Exact and stable phase shifts play an important role in the experimental results. Computer-generated holograph phase-shifting unit based on LC-SLM can produce phase shift with repeatable and high stability. In the system, it is very crucial to encode the computer-generated holograph on LC-SLM. This paper investigates phase-shifting precision and stability as well as diffraction efficiency by using various encoding methods in theory and experiment. The work in the paper establishes foundation that computer-generated holograph phase-shifting unit based on LC-SLM can be applied in the digital holography and interferometry system.

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Yanmei Wu, Qinghe Song, Junchang Li, and Jinbin Gui "Study on encoding technique of phase-shifting unit based on LC-SLM", Proc. SPIE 6832, Holography and Diffractive Optics III, 68320T (4 January 2008); https://doi.org/10.1117/12.755335

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