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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 14 — May. 10, 2013
  • pp: 3166–3171

Intermodal interferometer based on a fluid-filled two-mode photonic crystal fiber for sensing applications

Shuangxia Wang, Yan-ge Liu, Zhi Wang, Tingting Han, Weicai Xu, Yunkun Wang, and Shangcheng Wang  »View Author Affiliations


Applied Optics, Vol. 52, Issue 14, pp. 3166-3171 (2013)
http://dx.doi.org/10.1364/AO.52.003166


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Abstract

A fluid-filled two-mode photonic crystal fiber (PCF)-based intermodal interferometer and its sensing characteristics are demonstrated and investigated. The interferometer works from the interference between LP01 and LP11 core modes of the fluid-filled PCF. Solutions to enhance the temperature sensitivity of the interferometer are also discussed. Via choosing a higher fluid-filled length ratio of PCF, a sensitivity of more than 340pm/°C at 1480 nm is achieved, which is the highest value for a PCF intermodal interferometer-based sensor, to our best knowledge. Furthermore, there exist significant differences in temperature and strain sensitivity for two different interference dips, thus the interferometer can be used as a dual-parameter sensor with a compact structure through matrix demodulation.

© 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: February 15, 2013
Revised Manuscript: March 31, 2013
Manuscript Accepted: April 3, 2013
Published: May 7, 2013

Citation
Shuangxia Wang, Yan-ge Liu, Zhi Wang, Tingting Han, Weicai Xu, Yunkun Wang, and Shangcheng Wang, "Intermodal interferometer based on a fluid-filled two-mode photonic crystal fiber for sensing applications," Appl. Opt. 52, 3166-3171 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-14-3166

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