Refractive‐index sensor based on tilted fiber Bragg grating interacting with multimode fiber | Zendy

Jin Yongxing | Zendy; Dong Xinyong | Zendy; Gong Huaping | Zendy; Shen Changyu | Zendy

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Refractive‐index sensor based on tilted fiber Bragg grating interacting with multimode fiber

Author(s) -

Jin Yongxing,

Dong Xinyong,

Gong Huaping,

Shen Changyu

Publication year - 2010

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.25178

Subject(s) - fiber bragg grating , materials science , optics , multi mode optical fiber , phosfos , cladding (metalworking) , refractive index , cladding mode , fiber optic sensor , graded index fiber , optoelectronics , optical power , polarization maintaining optical fiber , optical fiber , step index profile , laser , physics , metallurgy

A simple refractive‐index fiber sensor based on a tilted Bragg fiber grating (TFBG) interacting with multimode fiber (MMF) is described. The sensor structure is formed by insertion of a small section of MMF between the single‐mode fiber and the TFBG. The average reflective power in the cladding modes of the TFBG reflected a different power as the surrounding refractive index changes, while the power of the reflected Bragg mode keeps unchanged. Therefore, the power of the reflected Bragg mode can be used as a reference to compensate any possible fluctuation of the light source power. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1375–1377, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25178

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