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Proceedings Paper

Input polarization control scheme for addressing polarization-induced fading in multiplexed interferometric sensor arrays
Author(s): Michael J. Marrone; Alan D. Kersey; Anthony D. Dandridge
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Paper Abstract

The results are presented of the first comprehensive experimental investigation of the effects of the state of polarization (SOP) in the common input of the multielement array of sensors on the interferometric signal visibilities of the individual sensors in the array. In one case of a 10-sensor array with randomly set initial visibilities, an empirical determination of the optimum input SOPs is shown to maintain the visibilities of all sensors larger than 0.55, or signal fade less than 6 dB. A theoretical model is developed which predicts the minimum visibility obtained from controlling the input SOP in N-element arrays. The results agree very well with experimental results obtained from a 10-sensor array, including the worst case situation in which all sensors are initially set to the complete polarization-fade condition.

Paper Details

Date Published: 1 January 1992
PDF: 9 pages
Proc. SPIE 1586, Distributed and Multiplexed Fiber Optic Sensors, (1 January 1992); doi: 10.1117/12.56519
Show Author Affiliations
Michael J. Marrone, Naval Research Lab. (United States)
Alan D. Kersey, Naval Research Lab. (United States)
Anthony D. Dandridge, Naval Research Lab. (United States)


Published in SPIE Proceedings Vol. 1586:
Distributed and Multiplexed Fiber Optic Sensors

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