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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 3 — Feb. 1, 2013
  • pp: 269–271

Temperature-insensitive refractive index sensing by use of micro Fabry–Pérot cavity based on simplified hollow-core photonic crystal fiber

Ying Wang, D. N. Wang, C. R. Liao, Tianyi Hu, Jiangtao Guo, and Huifeng Wei  »View Author Affiliations


Optics Letters, Vol. 38, Issue 3, pp. 269-271 (2013)
http://dx.doi.org/10.1364/OL.38.000269


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Abstract

A temperature-insensitive micro Fabry–Pérot (FP) cavity based on simplified hollow-core (SHC) photonic crystal fiber (PCF) is demonstrated. Such a device is fabricated by splicing a section of SHC PCF with single mode fibers at both cleaved ends. An extremely low temperature sensitivity of 0.273pm/°C is obtained between room temperature and 900°C. By drilling vertical micro-channels using a femtosecond laser, the micro FP cavity can be filled with liquids and functions as a sensitive refractometer and the refractive index sensitivity obtained is 851.3nm/RIU (refractive index unit), which indicates an ultra low temperature cross-sensitivity of 3.2×107RIU/°C.

© 2013 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: November 16, 2012
Revised Manuscript: December 21, 2012
Manuscript Accepted: December 21, 2012
Published: January 16, 2013

Citation
Ying Wang, D. N. Wang, C. R. Liao, Tianyi Hu, Jiangtao Guo, and Huifeng Wei, "Temperature-insensitive refractive index sensing by use of micro Fabry–Pérot cavity based on simplified hollow-core photonic crystal fiber," Opt. Lett. 38, 269-271 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-3-269

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