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30 April 2004 Surrounding medium insensitive PCF-based LPG
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Proceedings Volume 5279, Optical Fibers and Passive Components; (2004)
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China
Long period fiber gratings couple the fundamental guided mode to forward propagating cladding modes. A Characteristic of LPGs in SMF is that their spectral properties (resonant wavelength and coupling strength) are sensitive to the refractive index of the surface surrounding the cladding region. Because of this, LPGs are typically packaged unrecoated to obtain insensitive spectral properties. In this paper the effective index model combined with the coupling-mode theory are used to study the characteristics of LPGs based on photonic crystal fiber (PCF). After plenty of numerical simulation, the results demonstrate that PCF-based LPGs will be more insensitive to the surrounding medium than those written in SMF.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Weijun Liang, Zhi Wang, Guobin Ren, and Zhong'ao Jiang "Surrounding medium insensitive PCF-based LPG", Proc. SPIE 5279, Optical Fibers and Passive Components, (30 April 2004);

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