基于电弧放电和单模光纤的本征光纤法布里-珀罗干涉仪。

Intrinsic fiber-optic Fabry-Perot interferometer based on arc discharge and single-mode fiber.

作者信息

Wu Di, Zhu Tao, Wang Guo-Yin, Fu Jian-Yu, Lin Xiao-Guang, Gou Guang-Lei

机构信息

Chongqing Institute of Green and Intelligent Technology, CAS, Chongqing, China.

出版信息

Appl Opt. 2013 Apr 20;52(12):2670-5. doi: 10.1364/AO.52.002670.

DOI:10.1364/AO.52.002670

PMID:23669675

Abstract

We propose a simple intrinsic Fabry-Perot interferometer (FPI) based on single-mode fiber, where a thin film is formed by arc discharge to serve as one mirror of the FPI cavity. The temperature and refractive-index (RI) characteristics of the proposed device are investigated. Experimental results show that the device can provide temperature-independent measurement of RI with a fringe-contrast sensitivity of ~72.59 dB/RIU (RI units). Meanwhile, it can also be used as a temperature sensor with a wavelength sensitivity of ~8 pm/°C. Therefore, the potential simultaneous measurement of RI and temperature could be realized by detecting the variations of fringe contrast and wavelength, respectively.

摘要

我们提出了一种基于单模光纤的简单本征法布里-珀罗干涉仪（FPI），其中通过电弧放电形成薄膜作为FPI腔的一个反射镜。研究了所提出器件的温度和折射率（RI）特性。实验结果表明，该器件能够提供与温度无关的RI测量，条纹对比度灵敏度约为72.59 dB/RIU（RI单位）。同时，它还可以用作温度传感器，波长灵敏度约为8 pm/°C。因此，通过分别检测条纹对比度和波长的变化，可以实现RI和温度的潜在同时测量。