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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 13 — Jun. 21, 2010
  • pp: 14245–14250

Miniaturized fiber taper reflective interferometer for high temperature measurement

Jun-long Kou, Jing Feng, Liang Ye, Fei Xu, and Yan-qing Lu  »View Author Affiliations


Optics Express, Vol. 18, Issue 13, pp. 14245-14250 (2010)
http://dx.doi.org/10.1364/OE.18.014245


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Abstract

We present an ultra-small all-silica high temperature sensor based on a reflective Fabry-Perot modal interferometer (FPMI). Our FPMI is made of a micro-cavity (~4.4 μm) directly fabricated into a fiber taper probe less than 10 μm in diameter. Its sensing head is a miniaturized single mode-multimode fiber configuration without splicing. The sensing mechanism of FPMI is the interference among reflected fundamental mode and excited high-order modes at the end-faces. Its temperature sensitivity is ~20 pm/°C near the wavelength of 1550 nm. This kind of sensor can work in harsh environments with ultra-large temperature gradient, but takes up little space because of its unique geometry and small size.

© 2010 OSA

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.6780) Instrumentation, measurement, and metrology : Temperature

ToC Category:
Sensors

History
Original Manuscript: May 17, 2010
Revised Manuscript: June 15, 2010
Manuscript Accepted: June 15, 2010
Published: June 17, 2010

Citation
Jun-long Kou, Jing Feng, Liang Ye, Fei Xu, and Yan-qing Lu, "Miniaturized fiber taper reflective interferometer for high temperature measurement," Opt. Express 18, 14245-14250 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-13-14245


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