Birefringence manipulation in tapered polarization-maintaining photonic crystal fiber Mach-Zehnder interferometer for refractive index sensing
Birefringence manipulation in tapered polarization-maintaining photonic crystal fiber Mach-Zehnder interferometer for refractive index sensing
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DOI：
10.1016/j.sna.2016.10.032
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发表时间：
2016-12
影响因子：
4.6
通讯作者：
Dnyandeo Pawar;S. Kale
中科院分区：
文献类型：
--
作者：
Dnyandeo Pawar;S. Kale
A temperature insensitive, compact and high resolution refractive index measurement system using tapered polarization maintaining photonic crystal fiber (PM-PCF) Mach-Zehnder interferometer (MZI) is proposed. The sensor exhibits sensitivity of 20.53 nm/RIU with very high refractive index resolution of 1.2175 × 10−5RIU and 252.6906 dBm/RIU within the refractive index range from 1.33 to 1.37. The birefringence value varied from 1.90619 × 10−5to 1.86978 × 10−5with the corresponding change in refractive index. The core and clad having different propagation constant and the changes in the optical path length and hence a change in interference pattern is correlated with the minute changes in refractive index of the subjected sample.
