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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 11 — May. 21, 2012
  • pp: 12076–12084

Simultaneous wavelength and frequency encoded microstructure based quasi-distributed temperature sensor

Xiaolei Li, Qizhen Sun, Duan Liu, Ruibing Liang, Jiejun Zhang, Jianghai Wo, Perry Ping Shum, and Deming Liu  »View Author Affiliations


Optics Express, Vol. 20, Issue 11, pp. 12076-12084 (2012)
http://dx.doi.org/10.1364/OE.20.012076


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Abstract

A novel microstructure based temperature sensor system using hybrid wavelength-division-multiplexing /frequency-division-multiplexing (WDM/FDM) is proposed. The sensing unit is a specially designed microstructure sensor both frequency and wavelength encoded, as well as low insertion loss which makes it have the potential to be densely multiplexed along one fiber. Moreover, the microstructure can be simply fabricated by UV light irradiation on commercial single-mode fiber. Assisted with appropriate demodulation algorithm, the temperature distribution along the fiber can be calculated accurately. In theory, more than 1000 sensors can be multiplexed on one fiber. We experimentally demonstrated the feasibility of the scheme through building a sensor system with 9 microstructures multiplexing and with temperature resolution of 0.4°C

© 2012 OSA

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.4230) Fiber optics and optical communications : Multiplexing
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings

ToC Category:
Sensors

History
Original Manuscript: March 30, 2012
Revised Manuscript: May 6, 2012
Manuscript Accepted: May 6, 2012
Published: May 11, 2012

Citation
Xiaolei Li, Qizhen Sun, Duan Liu, Ruibing Liang, Jiejun Zhang, Jianghai Wo, Perry Ping Shum, and Deming Liu, "Simultaneous wavelength and frequency encoded microstructure based quasi-distributed temperature sensor," Opt. Express 20, 12076-12084 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-11-12076


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