Refractive sensitivity of mechanical long-period fiber grating in side-hole fiber

Yongxing Jin; Chi Chiu Chan; Huaping Gong; Xinyong Dong

doi:10.1117/12.849626

1 December 2009 Refractive sensitivity of mechanical long-period fiber grating in side-hole fiber

Yongxing Jin, Chi Chiu Chan, Huaping Gong, Xinyong Dong

Proceedings Volume 7630, Passive Components and Fiber-based Devices VI; 76302K (2009) https://doi.org/10.1117/12.849626
Event: Asia Communications and Photonics, 2009, Shanghai, Shanghai , China

Abstract

The refractive index sensor for use of mechanically induced long-period fiber grating (MLPG) in a side-hole singlemode fiber is proposed. The principle of operation is based on using of a long-period grating that is made by pressing a plate with periodic grooves against a short length of side-hole fiber. The strength of the resonant peak is tuned by adjusting the pressure applied on the side-hole SMF. The resonance wavelengths are shifted as the two side-holes of the fiber core were filled with the different the refractive index liquids. The resonant wavelength of 1588.6 nm has a total blue shift of approximately 12.2 nm for refractive index ranging from 1.35 to 1.43. The results show that it is more sensitive than that of the conventional SMF long-period fiber gratings.

Citation Download Citation

Yongxing Jin, Chi Chiu Chan, Huaping Gong, and Xinyong Dong "Refractive sensitivity of mechanical long-period fiber grating in side-hole fiber", Proc. SPIE 7630, Passive Components and Fiber-based Devices VI, 76302K (1 December 2009); https://doi.org/10.1117/12.849626

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