Simple In-Line M-Z Interferometer Based on Dual-Core Photonic Crystal Fiber

被引：12
作者：
Liu, Shuhui [1 ,2 ,3 ]
Liu, Ningliang [1 ,2 ,3 ]
Wang, Ying [4 ]
Guo, Jiangtao [1 ,2 ,3 ]
Li, Zhihua [1 ,2 ,3 ]
Lu, Peixiang [1 ,2 ,3 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China
[3] Minist Educ, Key Lab Fundamental Phys Quant Measurement, Wuhan 430074, Peoples R China
[4] Wuhan Inst Technol, Sch Sci, Wuhan 430074, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2012年 / 24卷 / 19期
基金：
中国国家自然科学基金;
关键词：
Mach-Zehnder interferometer (MZI); optical fiber sensors; photonic crystal fiber (PCF); TEMPERATURE; SENSOR; STRAIN;
D O I：
10.1109/LPT.2012.2213806
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We experimentally demonstrated a simple dual-core photonic-crystal-fiber-based M-Z interferometer by use of femtosecond laser drilling and fiber splicing. A higher order mode is excited in one fiber core by introducing a conical air hole at the splice point, which interferes with the fundamental mode in the other fiber core. Sensing applications to strain and temperature of the interferometer are experimentally demonstrated in this letter, and the sensitivities are obtained to be 2.18 pm/mu epsilon and 6.8 pm/degrees C, respectively. The device is compact and robust with a very simple structure, and can find applications in liquid environment.
引用
收藏
页码：1768 / 1770
页数：3
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