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Proceedings Paper

Surrounding medium insensitive PCF-based LPG
Author(s): Weijun Liang; Zhi Wang; Guobin Ren; Zhong'ao Jiang
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Paper Abstract

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.

Paper Details

Date Published: 30 April 2004
PDF: 5 pages
Proc. SPIE 5279, Optical Fibers and Passive Components, (30 April 2004); doi: 10.1117/12.521651
Show Author Affiliations
Weijun Liang, Northern Jiaotong Univ. (China)
Zhi Wang, Northern Jiaotong Univ. (China)
Guobin Ren, Northern Jiaotong Univ. (China)
Zhong'ao Jiang, Northern Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 5279:
Optical Fibers and Passive Components
Steven Shen; Shuisheng Jian; Katsunari Okamoto; Kenneth L. Walker, Editor(s)

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