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Phase-shift algorithm for white-light interferometry insensitive to linear errors in phase shift

✍ Scribed by Masaaki Adachi

Publisher: Optical Society of Japan
Year: 2008
Tongue: English
Weight: 604 KB
Volume: 15
Category: Article
ISSN: 1340-6000
DOI: 10.1007/s10043-008-0024-x

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## Abstract A quadrature phase‐shifted white‐light interferometry is demonstrated to interrogate short‐cavity extrinsic Fabry–Perot interferometric (EFPI) sensors. The absolute cavity length of an EFPI can be recovered by constructing two quadrature signals using the white‐light spectrum of the EFP