Vernier effect of fiber interferometer based on cascaded PANDA polarization maintaining fiber

被引：29

作者：

Liu, Shun ^{[1
]}

Lu, Ping ^{[1
]}

Chen, Enci ^{[1
]}

Ni, Wenjun ^{[1
]}

Liu, Deming ^{[1
]}

Zhang, Jiangshan ^{[2
]}

Lian, Zhenggang ^{[3
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Natl Engn Lab Next Generat Internet Access Syst, Wuhan 430074, Hubei, Peoples R China

[2] Huazhong Univ Sci & Technol, Dept Elect & Informat Engn, Wuhan 430074, Hubei, Peoples R China

[3] Yangtze Opt Elect Co, Wuhan 430074, Hubei, Peoples R China

来源：

CHINESE OPTICS LETTERS | 2019年 / 17卷 / 08期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

PHOTONIC CRYSTAL FIBER; REFRACTIVE-INDEX; TEMPERATURE; STRAIN; SENSITIVITY; SENSOR;

D O I：

10.3788/COL201917.080601

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This Letter shows the Vernier effect based on two segments of PANDA polarization maintaining fiber (PMF), whose lengths are 28 and 23 cm, respectively. The two PMFs are spliced together, and the angle between the fast axes is set to 45 degrees. This cascaded PMF is inserted in a Sagnac loop to form an interferometer that can generate the Vernier effect. The spectrum consists of finesse fringe and envelope and realizes simultaneous measurement of strain and temperature. The envelope can provide strain and temperature sensitivities of 58.0 pm/mu epsilon and -1.05 nm/degrees C. The finesse fringe provides sensitivities of 5.9 pm/mu epsilon and -1.36 nm/degrees C.

引用

页数：5

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