Measurement of absolute displacement by a double-modulation technique based on a Michelson interferometer

Lih Wuu Chang, Pie Yau Chien, Ching Ting Lee

研究成果: Article同行評審

6 引文 斯高帕斯(Scopus)

摘要

A novel method is presented for of measuring absolute displacement with a synthesized wavelength interferometer. The optical phase of the interferometer is simultaneously modulated with a frequencymodulated laser diode and optical path-length difference. The error signal originating from the intensity modulation of the source is eliminated by a signal processing circuit. In addition, a lock-in technique is used to demodulate the envelope of the interferometric signal. The displacement signal is derived by the self-mixing technique.

原文English
頁(從 - 到)2843-2847
頁數5
期刊Applied Optics
38
發行號13
DOIs
出版狀態Published - 1999 五月 1

All Science Journal Classification (ASJC) codes

  • 原子與分子物理與光學

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