Design and experiment of range-extended Fiber Fabry-Perot Interferometer utilizing the second harmonic displacement modulation

Shao-Kang Hung*, En Te Hwu, Mei Yung Chen, Li Chen Fu

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations

Abstract

This paper proposes a new modulation scheme using high order harmonic information to solve the so-called ambiguity problem of interferometry. To start with, we build a Fiber Fabry-Perot Interferometer to serve as a displacement sensor system, which has 70μm measurement range with 30nm RMS resolution. The experimental result shows that the proposed scheme has the ability to extend the measurement range beyond the limit of the wavelength while keeping the naturally high resolution of interferometry.

Original languageEnglish
Pages88-92
Number of pages5
StatePublished - 16 Nov 2005
EventProceedings of the 2005 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM 2005 - Monterey, CA, United States
Duration: 24 Jul 200528 Jul 2005

Conference

ConferenceProceedings of the 2005 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM 2005
CountryUnited States
CityMonterey, CA
Period24/07/0528/07/05

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