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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 4 — Feb. 15, 2013
  • pp: 449–451

Direction-independent fiber inclinometer based on simplified hollow core photonic crystal fiber

Shuhui Liu, Ningliang Liu, Maoxiang Hou, Jiangtao Guo, Zhihua Li, and Peixiang Lu  »View Author Affiliations


Optics Letters, Vol. 38, Issue 4, pp. 449-451 (2013)
http://dx.doi.org/10.1364/OL.38.000449


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Abstract

A fiber optical inclinometer based on modal interferometer is demonstrated for bend angle sensing. The device consists of a piece of simplified hollow core photonic crystal fiber sandwiched between single mode fibers with lateral offset. The measurement of bend angles up to 45° is demonstrated, and the spectrum exhibits a blueshift of over 50 nm. The sensitivity is found to increase with the applied bend angles and reaches 2.4nm/deg at 45°, and the response is independent of the direction of bending. A low temperature sensitivity of 0.5pm/°C is observed between room temperature and 1000°C. Due to its capacity for withstanding high temperature, the device can work as a direction-independent inclinometer in high-temperature environments.

© 2013 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: December 6, 2012
Revised Manuscript: January 10, 2013
Manuscript Accepted: January 10, 2013
Published: February 8, 2013

Citation
Shuhui Liu, Ningliang Liu, Maoxiang Hou, Jiangtao Guo, Zhihua Li, and Peixiang Lu, "Direction-independent fiber inclinometer based on simplified hollow core photonic crystal fiber," Opt. Lett. 38, 449-451 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-4-449


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