In-Line Fiber Optic Interferometric Sensors in Single-Mode Fibers

Sensors

Tao Zhu¹  Di Wu²  Min Liu² 

[1] Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education), Chongqing University, Chongqing 400044, China;

关键词: in-line fiber-optic sensor;    Fabry-Perot interferometer;    core-cladding-mode interferometer;    Mach-Zehnder Interferometer;    Michelson interferometer;   

DOI  :  10.3390/s120810430

来源: mdpi

【 摘 要 】

In-line fiber optic interferometers have attracted intensive attention for their potential sensing applications in refractive index, temperature, pressure and strain measurement, etc. Typical in-line fiber-optic interferometers are of two types: Fabry-Perot interferometers and core-cladding-mode interferometers. It's known that the in-line fiber optic interferometers based on single-mode fibers can exhibit compact structures, easy fabrication and low cost. In this paper, we review two kinds of typical in-line fiber optic interferometers formed in single-mode fibers fabricated with different post-processing techniques. Also, some recently reported specific technologies for fabricating such fiber optic interferometers are presented.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.