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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 21, Iss. 6 — Mar. 15, 1996
  • pp: 444–446

Fiber-optic distributed sensing by a two-loop Sagnac interferometer

Xiaojun Fang  »View Author Affiliations


Optics Letters, Vol. 21, Issue 6, pp. 444-446 (1996)
http://dx.doi.org/10.1364/OL.21.000444


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Abstract

A two-loop Sagnac interferometer is proposed for fiber-optic distributed sensing. The location of a disturbance can be determined from the two output phase signals of the two Sagnac loops, and the amplitude of the disturbance can be obtained by integration of the phase signal. A prototype distributed impact sensing system has been tested based on the two-loop Sagnac interferometer.

© 1996 Optical Society of America

History
Original Manuscript: October 25, 1995
Published: March 15, 1996

Citation
Xiaojun Fang, "Fiber-optic distributed sensing by a two-loop Sagnac interferometer," Opt. Lett. 21, 444-446 (1996)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-21-6-444


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References

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  8. E. Udd, “Sagnac distributed sensor,”U.S. patent4,976,507 (December11, 1990).
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