標題: Method for determining full-field absolute phases in the common-path heterodyne interferometer with an electro-optic modulator
作者: Chen, Yen-Liang
Su, Der-Chin
光電工程學系
Department of Photonics
公開日期: 10-Dec-2008
摘要: When a sawtooth voltage signal with the amplitude lower than its half-wave voltage is applied to drive an electro-optic modulator, the interference signals become a group of periodic sinusoidal segments. A new algorithm is proposed to modify these segments to an associated continuous sinusoidal wave, and then its initial phase can be determined. Subtracting the characteristic phase of the modulator from the initial phase, the absolute phase can be obtained. This technique is applied to all pixels, and full-field absolute phase measurements can be achieved. The validity of this method is demonstrated. (c) 2008 Optical Society of America.
URI: http://dx.doi.org/10.1364/AO.47.006518
http://hdl.handle.net/11536/8033
ISSN: 0003-6935
DOI: 10.1364/AO.47.006518
期刊: APPLIED OPTICS
Volume: 47
Issue: 35
起始頁: 6518
結束頁: 6523
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