Interferometer with two-frequency phase modulation

被引：0
|
作者：
Arkhipov, M.G. [1 ]
Seregin, A.G. [1 ]
Etsin, I.Sh. [1 ]
机构：
[1] Vavilov State Optical Inst, St. Petersburg, Russia
来源：
Optics and Spectroscopy (English translation of Optika i Spektroskopiya) | 1994年 / 77卷 / 01期
关键词：
Error analysis - Hysteresis - Light modulators - Measurement errors - Oscillations - Phase measurement - Phase modulation - Phase shift - Photodetectors - Second harmonic generation - Signal to noise ratio - Wavefronts;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An interference method of two-frequency phase modulation is studied experimentally and theoretically as applied to displacement measurement and wave front control. Analysis is performed of errors resulting from shot noise, hysteresis of the piezoceramic modulator, phase shift between modulating oscillations, and scatter of their amplitudes. It is shown that a phase measurement error of 2π/180 can be obtained in actual conditions.
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页码：125 / 128
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