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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 8 — Apr. 15, 2013
  • pp: 1209–1211

Ultrasensitive temperature sensor based on an isopropanol-sealed optical microfiber taper

Yang Xue, Yong-Sen Yu, Rui Yang, Chuang Wang, Chao Chen, Jing-Chun Guo, Xuan-Yu Zhang, Cong-Cong Zhu, and Hong-Bo Sun  »View Author Affiliations


Optics Letters, Vol. 38, Issue 8, pp. 1209-1211 (2013)
http://dx.doi.org/10.1364/OL.38.001209


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Abstract

We demonstrate an ultrasensitive temperature sensor based on an isopropanol-sealed optical microfiber taper (OMT) in a capillary. The OMT is highly sensitive to ambient refractive index (RI) with a maximum sensitivity of 18989nm/RI unit in the range of 1.3955–1.4008. The thermo-optic effect of isopropanol and the thermal expansions of the sealant and sealed liquid turn the OMT into an ultrasensitive temperature sensor with the maximum sensitivity of 3.88nm/°C in the range of 20°C–50°C. The temperature sensitivity contributions from different mechanisms are also investigated theoretically and experimentally.

© 2013 Optical Society of America

OCIS Codes
(060.2300) Fiber optics and optical communications : Fiber measurements
(060.2370) Fiber optics and optical communications : Fiber optics sensors

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: February 4, 2013
Revised Manuscript: March 5, 2013
Manuscript Accepted: March 5, 2013
Published: April 1, 2013

Citation
Yang Xue, Yong-Sen Yu, Rui Yang, Chuang Wang, Chao Chen, Jing-Chun Guo, Xuan-Yu Zhang, Cong-Cong Zhu, and Hong-Bo Sun, "Ultrasensitive temperature sensor based on an isopropanol-sealed optical microfiber taper," Opt. Lett. 38, 1209-1211 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-8-1209


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References

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