Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/100307
Title: Long period grating cascaded to photonic crystal fiber modal interferometer for simultaneous measurement of temperature and refractive index
Authors: Hu, Dora Juan Juan
Lim, Jun Long
Jiang, Meng
Wang, Yixin
Luan, Feng
Shum, Perry Ping
Wei, Huifeng
Tong, Weijun
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2012
Source: Hu, D. J. J., Lim, J. L., Jiang, M., Wang, Y., Luan, F., Shum, P. S., et al. (2012). Long period grating cascaded to photonic crystal fiber modal interferometer for simultaneous measurement of temperature and refractive index. Optics Letters, 37(12), 2283-2285.
Series/Report no.: Optics letters
Abstract: We propose and demonstrate a novel and simple dual-parameter measurement scheme based on a cascaded optical fiber device of long-period grating (LPG) and photonic crystal fiber (PCF) modal interferometer. The temperature and refractive index (RI) can be measured simultaneously by monitoring the spectral characteristics of the device. The implemented sensor shows distinctive spectral sensitivities of −30.82  nm/RIU (refractive index unit) and 47.4  pm/°C by the LPG, and 171.96  nm/RIU and 10.4  pm/°C by the PCF modal interferometer. The simultaneous measurement of the temperature and external RI is experimentally demonstrated by the sensor. The temperature shift and RI shift calculated by the sensor matrix agree well with the actual temperature and RI change in the experiment.
URI: https://hdl.handle.net/10356/100307
http://hdl.handle.net/10220/10978
ISSN: 0146-9592
DOI: 10.1364/OL.37.002283
Rights: © 2012 Optical Society of America. This paper was published in Optics Letters and is made available as an electronic reprint (preprint) with permission of Optical Society of America. The paper can be found at the following official DOI: [http://dx.doi.org/10.1364/OL.37.002283]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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