物理学报2011，Vol.60Issue(6)：298-303,6.
光纤法布里-珀罗复合结构折射率传感器的灵敏度分析
Sensitivity analysis of hybrid fiber Fabry-Pérot refractive-index sensor
摘要
Abstract
Theoretical expressions for analyzing the refractive-index sensitivity of the hybrid optical fiber Fabry-Perot sensor is developed. Influence of the experimental parameters on the measurement sensitivity is discussed. Hybrid optical fiber Fabry-Pérot sensor is fabricated by chemically etching a graded-index multimode fiber ( GI-MMF) , fusion splicing it into a single mode fiber, and cleaving the GI-MMF. The fringe contrast exceeds 30 Db and the corresponding measurement sensitivity of refractive index is about 45 Db per refraction index unit. Experimental results are in good agreement with the theoretical ones. It is indicated by the numerical simulations that the performance of this kind of sensor can be further improved.关键词
光纤传感器/法布里-珀罗复合结构/折射率测量/灵敏度Key words
optical fiber sensors/ hybrid Fabry-Perot/ refractive-index measurement/ sensitivity引用本文复制引用
龚元,郭宇,饶云江,赵天,吴宇,冉曾令..光纤法布里-珀罗复合结构折射率传感器的灵敏度分析[J].物理学报,2011,60(6):298-303,6.基金项目
国家自然科学基金重点项目(批准号:60537040)和区域光纤通信网与新型光通信系统国家重点实验室基金资助的课题 （批准号:60537040）
