Sagnac Interferometric Temperature Sensor Based on Boron-Doped Polarization-Maintaining Photonic Crystal Fibers

3区 物理与天体物理 Q1 Materials Science
Lan Cheng, Junhui Liang, Shiwei Xie, Yilin Tong
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引用次数: 1

Abstract

A sensitive temperature sensor was demonstrated using boron-doped polarization-maintaining photonic crystal fiber (PM-PCF) as a Sagnac interferometer (SI). This boron-doped PM-PCF combines both the geometric birefringence introduced by the PCF structure design and the stress birefringence introduced by the boron-doped stress-applying parts. However, we found that the stress birefringence dominates the total birefringence of the sensor by numerical analysis. In the experiments, the fabricated sensor exhibited the highest temperature sensitivity of −1.83 nm/°C within the wide temperature range of 28~76 °C. The temperature sensitivity was mainly derived from the stress birefringence of boron-doped PM-PCF SI. These findings provide some support for the designation of high-precision temperature sensors.
基于掺硼保偏光子晶体光纤的Sagnac干涉温度传感器
采用掺硼保偏光子晶体光纤(PM-PCF)作为Sagnac干涉仪,研制了一种灵敏的温度传感器。这种掺硼PM-PCF结合了PCF结构设计引入的几何双折射和掺硼施加应力部件引入的应力双折射。然而,通过数值分析,我们发现应力双折射主导了传感器的总双折射。在28~76℃的宽温度范围内,该传感器的温度灵敏度最高,为- 1.83 nm/°C。温度敏感性主要来源于掺硼PM-PCF SI的应力双折射。这些结果为高精度温度传感器的设计提供了一定的支持。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Progress in Optics
Progress in Optics 物理-光学
CiteScore
4.50
自引率
0.00%
发文量
8
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