马赫-曾德尔干涉仪
偏移量(计算机科学)
干涉测量
光学
折射率
材料科学
干扰(通信)
光纤
物理
电信
工程类
计算机科学
频道(广播)
程序设计语言
作者
Qingyu Zou,Bingcheng Wu,Haiyang Bao,Jie Zheng,Fangda Yu
摘要
A cascading core-offset in-line fiber Mach-Zehnder interferometer (MZI) was proposed to improve the RI sensitivity and eliminate the cross sensitivity between RI and temperature. The sensor was fabricated by cascading a small core-offset inline fiber MZI (the offset displacement is 6μm and interference arm length is 30mm) with a large core-offset in-line fiber MZI (the offset displacement is 40μm and interference arm length is 30mm). By enlarging the offset displacement, the RI sensitivity was improved from -9.177 to 108.326nm/RIU. And the MZIs with two offset displacement offer interference dips with different RI response, by utilizing the interference dips, the simultaneously measurement can be realized to eliminate the cross sensitivity.
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