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Proceedings Paper

Phase calibration of spatial light modulators by heterodyne interferometry
Author(s): Ruisong Wang; Dong Li; Mingxi Hu; Jindong Tian
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Paper Abstract

In this paper, a method of measuring the phase modulation properties of spatial light modulator (SLM) by heterodyne interferometry is proposed. As a kind of key elements in the advanced optical information processing systems, spatial light modulators is widely used in many important fields, especially used as a dynamic phase modulating device. So, the phase calibration plays an important role in the SLM applications. Compared with the methods based on traditional interferometry, this method measures the phase response directly by taking advantage of the heterodyne mechanism, so it leads to higher accuracy. A heterodyne-interferometer based calibration system making use of acousto-optic frequencyshifters has been designed and realized. Theoretical analysis and experimental results demonstrate the validity of this method.

Paper Details

Date Published: 17 November 2010
PDF: 7 pages
Proc. SPIE 7848, Holography, Diffractive Optics, and Applications IV, 78481F (17 November 2010); doi: 10.1117/12.869961
Show Author Affiliations
Ruisong Wang, Shenzhen Univ. (China)
Dong Li, Shenzhen Univ. (China)
Mingxi Hu, Shenzhen Univ. (China)
Jindong Tian, Shenzhen Univ. (China)


Published in SPIE Proceedings Vol. 7848:
Holography, Diffractive Optics, and Applications IV
Yunlong Sheng; Chongxiu Yu; Linsen Chen, Editor(s)

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