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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 19 — Jul. 1, 2008
  • pp: 3530–3534

Temperature sensor using an optical fiber coupler with a thin film

Hairun Guo, Fufei Pang, Xianglong Zeng, Na Chen, Zhenyi Chen, and Tingyun Wang  »View Author Affiliations


Applied Optics, Vol. 47, Issue 19, pp. 3530-3534 (2008)
http://dx.doi.org/10.1364/AO.47.003530


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Abstract

A temperature sensor was demonstrated and fabricated by coating thermosensitive film around a fiber coupler. Based on the multicladding equivalent method, the coated fiber coupler was simplified to a conventional one. With the high thermo-optical coefficient of organic–inorganic solgel material, a good sensing result was achieved. The range of temperature measured is from 50 ° C to 100 ° C . The resonant wavelength has a shift of about 25 nm . A sensitivity of 0.17 nm / ° C is achieved. With the advantages of having a simple structure and being unaffected by the instability of the light source, the proposed fiber coupler temperature sensor will find wide applications.

© 2008 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(160.2290) Materials : Fiber materials
(230.0230) Optical devices : Optical devices

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: February 27, 2008
Revised Manuscript: May 13, 2008
Manuscript Accepted: May 30, 2008
Published: June 26, 2008

Citation
Hairun Guo, Fufei Pang, Xianglong Zeng, Na Chen, Zhenyi Chen, and Tingyun Wang, "Temperature sensor using an optical fiber coupler with a thin film," Appl. Opt. 47, 3530-3534 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-19-3530


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References

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