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Optics Letters

Optics Letters


  • Vol. 12, Iss. 10 — Oct. 1, 1987
  • pp: 775–777

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

A. D. Kersey, A. Dandridge, and A. B. Tveten  »View Author Affiliations

Optics Letters, Vol. 12, Issue 10, pp. 775-777 (1987)

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The multiplexing and demodulation of interferometric sensors using a time-division/phase-generated carrier approach is described. The scheme uses slightly unbalanced interferometers and laser frequency modulation to effect the interrogation of the sensors, while the time-division multiplexing allows individual sensors to be addressed. Phase sensitivities of 20 μ rad / Hz and cross-talk levels of <−47 dB are demonstrated for a three-sensor network.

© 1987 Optical Society of America

Original Manuscript: May 4, 1987
Manuscript Accepted: July 9, 1987
Published: October 1, 1987

A. D. Kersey, A. Dandridge, and A. B. Tveten, "Time-division multiplexing of interferometric fiber sensors using passive phase-generated carrier interrogation," Opt. Lett. 12, 775-777 (1987)

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  1. A. Dandridge, A. D. Kersey, “Signal processing for optical fiber sensors,” in Fiber Optic Sensors II, A. M. Scheggi, ed., Proc. Soc. Photo-Opt. Instrum. Eng.798 (to be published, 1987).
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  7. A. Dandridge, A. B. Tveten, A. D. Kersey, A. M. Yurek, IEEE J. Lightwave Technol. (to be published).
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