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Proceedings Paper

Split-cavity cross-coupled extrinsic fiber interferometer
Author(s): Venkatapura S. Sudarshanam; Rajat R. Dhawan; Richard O. Claus
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Paper Abstract

A new configuration of the extrinsic Fabry-Perot interferometer that eliminates the need for biasing the phase difference at the quadrature point is presented. This new version based on four-beam interference utilizes two sensor heads on a single directional coupler in a split- cavity cross-coupled extrinsic fiber interferometer (SCEFI) arrangement. The spectrum analysis scheme devised for signal demodulation allows a linear readout of the phase shift. Both dynamic as well as static phase shifts are considered. Significant applications of the SCEFI are also discussed.

Paper Details

Date Published: 26 March 1993
PDF: 10 pages
Proc. SPIE 1798, Fiber Optic Smart Structures and Skins V, (26 March 1993); doi: 10.1117/12.141326
Show Author Affiliations
Venkatapura S. Sudarshanam, Virginia Polytechnic Institute and State Univ. (United States)
Rajat R. Dhawan, Virginia Polytechnic Institute and State Univ. (United States)
Richard O. Claus, Virginia Polytechnic Institute and State Univ. (United States)


Published in SPIE Proceedings Vol. 1798:
Fiber Optic Smart Structures and Skins V
Richard O. Claus; Robert S. Rogowski, Editor(s)

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