Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/7095
Title: Temperature-insensitive refractive index sensing by use of micro Fabry–Pérot cavity based on simplified hollow-core photonic crystal fiber
Authors: Wang, Y
Wang, D 
Liao, C
Hu, T
Guo, J
Wei, H
Keywords: Photonic crystal fibers
Fiber optics sensors
Instrumentation, measurement, and metrology
Issue Date: 1-Feb-2013
Publisher: Optical Society of America
Source: Optics letters, 1 Feb. 2013, v. 38, no. 3, p. 269-271 How to cite?
Journal: Optics letters 
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 ∼0.273  pm/°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 ∼851.3  nm/RIU (refractive index unit), which indicates an ultra low temperature cross-sensitivity of ∼3.2×10⁻⁷   RIU/°C .
URI: http://hdl.handle.net/10397/7095
ISSN: 0146-9592
EISSN: 1539-4794
DOI: 10.1364/OL.38.000269
Rights: © 2013 Optical Society of America
This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-3-269. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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