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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 11 — May. 26, 2008
  • pp: 7881–7887

Proposal and experimental verification of Bragg wavelength distribution measurement within a long-length FBG by synthesis of optical coherence function

Kazuo Hotate and Koji Kajiwara  »View Author Affiliations


Optics Express, Vol. 16, Issue 11, pp. 7881-7887 (2008)
http://dx.doi.org/10.1364/OE.16.007881


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Abstract

In this paper, a sensor system for measuring continuous Bragg wavelength distribution in a long-length fiber Bragg grating is newly proposed, using synthesis of optical coherence function (SOCF), which is one of the spatial resolving techniques used for reflectometry. Experimental results are also reported. In the process of synthesizing optical coherence function, it is found that an apodization scheme is necessary to obtain the reflection spectrum of local section in a long-length FBG around the coherence peak. As a verification of this method, the detection of local Bragg wavelength shift due to temperature change within a short section in a long-length FBG is demonstrated experimentally.

© 2008 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 13, 2008
Revised Manuscript: May 13, 2008
Manuscript Accepted: May 13, 2008
Published: May 16, 2008

Citation
Kazuo Hotate and Koji Kajiwara, "Proposal and experimental verification of Bragg wavelength distribution measurement within a long-length FBG by synthesis of optical coherence function," Opt. Express 16, 7881-7887 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-11-7881


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References

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