Abstract

We describe a frequency-modulation technique that is applicable to two-beam interferometric systems illuminated by semiconductor diode lasers. The technique permits a determination of the optical path difference between the two arms of the interferometer and is used here to extend the range of a fiber polarimetric strain sensor by determining the order of the particular polarimetric fringe under consideration.

© 1987 Optical Society of America

Fiber-optic polarimetric strain sensor with three-wavelength digital phase demodulation

Markus Schmidt, Norbert Fürstenau, Wojtek Bock, and Waclaw Urbanczyk
Opt. Lett. 25(18) 1334-1336 (2000)

Dual-sensor technique for extending the dynamic range of a fiber-optic interferometric sensor

Kin S. Chiang and Hidemi Tsuchida
Opt. Lett. 13(10) 850-852 (1988)

Ultrahigh sensitivity polarimetric strain sensor based upon D-shaped optical fiber and surface plasmon resonance technology

Yu-Lung Lo, Chin-Ho Chuang, and Zheng-Wei Lin
Opt. Lett. 36(13) 2489-2491 (2011)

Time-division multiplexing of interferometric fiber sensors using passive phase-generated carrier interrogation

A. D. Kersey, A. Dandridge, and A. B. Tveten
Opt. Lett. 12(10) 775-777 (1987)

Multiplexing systems for interferometric sensors with short imbalances

Izumi Sakai
Appl. Opt. 26(21) 4597-4602 (1987)