All-fiber pressure sensor up to 100 MPa

Wojtek J. Bock; Tomasz R. Wolinski; Andrzej W. Domanski

doi:10.1117/12.45998

1 August 1991 All-fiber pressure sensor up to 100 MPa

Wojtek J. Bock, Tomasz R. Wolinski, Andrzej W. Domanski

Proceedings Volume 1511, Fiber Optic Sensors: Engineering and Applications; (1991) https://doi.org/10.1117/12.45998
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands

Abstract

A novel structure incorporating an all-fiber configuration for a fiber-optic sensor of high pressure up to at least 100 MPa is discussed. This configuration is based on the hydrostatic pressure-induced polarization coupling occurring in highly birefringent optical fibers, which the authors reported earlier. The application of two light launching systems--one based on a semiconductor laser diode pigtailed to a single-mode fiber, the other on a similar laser diode pigtailed to a highly birefringent fiber--is reviewed and analyzed. The paper discusses the principles on which the design is based; the construction, instrumentation, and operation of this sensor; and its performance under various conditions, including pressure and temperature coefficients of the output signal. Temperature desensitization procedure is briefly described, and the advantages of the sensor over a sensor utilizing bulk optical polarization controlling elements and a HeNe laser are analyzed.

Citation Download Citation

Wojtek J. Bock, Tomasz R. Wolinski, and Andrzej W. Domanski "All-fiber pressure sensor up to 100 MPa", Proc. SPIE 1511, Fiber Optic Sensors: Engineering and Applications, (1 August 1991); https://doi.org/10.1117/12.45998

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