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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 19 — Sep. 18, 2006
  • pp: 8546–8551

Multi-point interrogation of FBG sensors using cascaded flexible wavelength-division Sagnac loop filters

Chang-Seok Kim, Tae Ho Lee, Yun Sik Yu, Young-Geun Han, Sang Bae Lee, and Myung Yung Jeong  »View Author Affiliations


Optics Express, Vol. 14, Issue 19, pp. 8546-8551 (2006)
http://dx.doi.org/10.1364/OE.14.008546


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Abstract

A simple optical signal demodulation technique is demonstrated for multi-point interrogation of fiber Bragg grating sensors. The wavelength-division responses of polarization-maintaining fiber Sagnac loop filters are flexibly controlled to interrogate the simultaneous optical intensity changes from the independent wavelength shifts of multiple fiber Bragg grating sensors. Experimental performance is also demonstrated to show the simultaneous detection of the separated FBG sensing signals by individual photo detectors.

© 2006 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.5790) Instrumentation, measurement, and metrology : Sagnac effect

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: July 25, 2006
Revised Manuscript: August 28, 2006
Manuscript Accepted: August 28, 2006
Published: September 18, 2006

Citation
Chang-Seok Kim, Tae Ho Lee, Yun Sik Yu, Young-Geun Han, Sang Bae Lee, and Myung Yung Jeong, "Multi-point interrogation of FBG sensors using cascaded flexible wavelength-division Sagnac loop filters," Opt. Express 14, 8546-8551 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-19-8546


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References

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