OE Letters

High-birefringence photonic crystal fiber Michelson interferometer with cascaded fiber Bragg grating for pressure and temperature discrimination

[+] Author Affiliations
Xiaoling Tan

Shenzhen Institute of Information Technology, School of Electronics and Communication, Room No. 1603, Science and Technology Building, 2188 Longxiang Boulevard, Longgang District, Shenzhen 518172, China

Youfu Geng, Xuejin Li

Shenzhen University, Shenzhen Key Laboratory of Sensor Technology, Nanhai Avenue 3688, Nanshan District, Shenzhen 518060, China

Opt. Eng. 55(9), 090508 (Sep 22, 2016). doi:10.1117/1.OE.55.9.090508
History: Received July 13, 2016; Accepted September 7, 2016
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Abstract.  A simple and compact interferometer for temperature and pressure discrimination is proposed and demonstrated experimentally. It consists of a short section of high-birefringence photonic crystal fiber (Hi-Bi PCF) and a cascaded fiber Bragg grating (FBG). In the Hi-Bi PCF, two orthogonal polarized modes are employed as optical arms to construct, such as a Michelson interferometer. Combined with a cascaded FBG, pressure and temperature measurements are discriminated by a matrix method, and the pressure sensitivity of Hi-Bi PCF is determined to be around 3.65  nm/MPa. The proposed Michelson interferometer is easy-to-fabricate, flexible, and low-cost, which shows great potential in future applications of remote sensing.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Xiaoling Tan ; Youfu Geng and Xuejin Li
"High-birefringence photonic crystal fiber Michelson interferometer with cascaded fiber Bragg grating for pressure and temperature discrimination", Opt. Eng. 55(9), 090508 (Sep 22, 2016). ; http://dx.doi.org/10.1117/1.OE.55.9.090508


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