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Engineering & Laboratory Notes Achromatic Phase-Shifting for White-Light Interferometry

✍ Scribed by Hariharan, P.

Book ID
115345595
Publisher
The Optical Society
Year
1996
Tongue
English
Weight
375 KB
Volume
35
Category
Article
ISSN
1559-128X

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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