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Proceedings Paper

Polarization-selective phase modulator: a potential component for interferometric fiber optical sensors?
Author(s): Raoul Stubbe; Gunnar N.E. Edwall; Bengt Sahlgren; Lars Svahn; Per Granestrand; Lars Thylen
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Paper Abstract

This paper discusses the potential use of polarisation selective phase modulators, PSPM, in interferometric fiber optical sensors. The principle of the PSPM is shortly reviewed. Two examples of the usefulness ofpolarisation selective phase modulation will be given. The first showing that PSPM introduces a possibility to monitor two measurands, simultaneously, with the same interferometer. In the second, a more detailed look at the consequences of using this concept in fiber optical gyros wiibe presented. A formula is derived describing the suppression ofnoise due to polarisation coupling in the gyro fiber loop. Using a special modulation and detection scheme, the PSPM shows to reduce the noise with the same order of magnitude as a polarizer.

Paper Details

Date Published: 1 August 1990
PDF: 8 pages
Proc. SPIE 1267, Fiber Optic Sensors IV, (1 August 1990); doi: 10.1117/12.20310
Show Author Affiliations
Raoul Stubbe, Royal Institute of Technology (Sweden)
Gunnar N.E. Edwall, Royal Institute of Technology (Sweden)
Bengt Sahlgren, Institute of Optical Research (Sweden)
Lars Svahn, Institute of Optical Research (Sweden)
Per Granestrand, Ericsson Telecom (Sweden)
Lars Thylen, Ericsson Telecom (Sweden)

Published in SPIE Proceedings Vol. 1267:
Fiber Optic Sensors IV
Ralf Th. Kersten, Editor(s)

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