3 January 1996 Preliminary study of the optimization of polarimetric fiber stress sensors
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Proceedings Volume 2594, Self-Calibrated Intelligent Optical Sensors and Systems; (1996); doi: 10.1117/12.229221
Event: Photonics East '95, 1995, Philadelphia, PA, United States
Abstract
This paper presents two new approaches to distributed optical fiber stress sensors whose principle of operation is based on the FMCW technique. In each case, the sensor utilizes a single length of birefringent fiber which has a mirror at one end to act as the sensing element. The two forward-coupled beams which derive from the incident light beam and reflected light beam in the fiber are used to determine the position and intensity of the stress. In addition, the second sensor uses a polarization maintaining optical fiber coupler instead of the bulk optical elements so that it is more compact than the first one. These experiments have shown that both sensors have many advantages, including large signal intensity, good signal contrast, high resolution and long length of sensing arm.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael Campbell, Gong Zheng, Peter A. Wallace, "Preliminary study of the optimization of polarimetric fiber stress sensors", Proc. SPIE 2594, Self-Calibrated Intelligent Optical Sensors and Systems, (3 January 1996); doi: 10.1117/12.229221; http://dx.doi.org/10.1117/12.229221
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KEYWORDS
Sensors

Semiconductor lasers

Fiber optics sensors

Modulation

Mirrors

Optical fibers

Signal detection

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