Absolute displacement measurement by using the synthesized modulation index of a frequency-modulated interferometer

Lih Wuu Chang; Ching Ting Lee; Pie Yau Chien

doi:10.1063/1.1148281

Absolute displacement measurement by using the synthesized modulation index of a frequency-modulated interferometer

Lih Wuu Chang, Ching Ting Lee, Pie Yau Chien

Department of Photonics

Research output: Contribution to journal › Article › peer-review

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Abstract

A novel absolute displacement measurement by using a heterodyne interferometer, with a frequency-modulated laser diode has been successfully implemented. In this signal processing scheme, the synthesized modulation index of a phase-modulated interferometer is used for measuring the displacement, which is independent of the variation of the modulation frequency. The error induced from the intensity modulation in the laser diode can be eliminated.

Original language	English
Pages (from-to)	3085-3087
Number of pages	3
Journal	Review of Scientific Instruments
Volume	68
Issue number	8
DOIs	https://doi.org/10.1063/1.1148281
Publication status	Published - 1997 Aug

All Science Journal Classification (ASJC) codes

Instrumentation

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10.1063/1.1148281

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title = "Absolute displacement measurement by using the synthesized modulation index of a frequency-modulated interferometer",

abstract = "A novel absolute displacement measurement by using a heterodyne interferometer, with a frequency-modulated laser diode has been successfully implemented. In this signal processing scheme, the synthesized modulation index of a phase-modulated interferometer is used for measuring the displacement, which is independent of the variation of the modulation frequency. The error induced from the intensity modulation in the laser diode can be eliminated.",

author = "Chang, {Lih Wuu} and Lee, {Ching Ting} and Chien, {Pie Yau}",

year = "1997",

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doi = "10.1063/1.1148281",

language = "English",

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journal = "Review of Scientific Instruments",

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AU - Lee, Ching Ting

AU - Chien, Pie Yau

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N2 - A novel absolute displacement measurement by using a heterodyne interferometer, with a frequency-modulated laser diode has been successfully implemented. In this signal processing scheme, the synthesized modulation index of a phase-modulated interferometer is used for measuring the displacement, which is independent of the variation of the modulation frequency. The error induced from the intensity modulation in the laser diode can be eliminated.

AB - A novel absolute displacement measurement by using a heterodyne interferometer, with a frequency-modulated laser diode has been successfully implemented. In this signal processing scheme, the synthesized modulation index of a phase-modulated interferometer is used for measuring the displacement, which is independent of the variation of the modulation frequency. The error induced from the intensity modulation in the laser diode can be eliminated.

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Absolute displacement measurement by using the synthesized modulation index of a frequency-modulated interferometer

Abstract

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