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Quadrature phase-shifted, extrinsic Fabry-Perot optical fiber sensors

✍ Scribed by Murphy, Kent A.; Gunther, Michael F.; Vengsarkar, Ashish M.; Claus, Richard O.

Book ID
115418240
Publisher
Optical Society of America
Year
1991
Tongue
English
Weight
378 KB
Volume
16
Category
Article
ISSN
0146-9592

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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