Mechanism and characteristics of long period fiber gratings in simplified hollow-core photonic crystal fibers

被引：32

作者：

Wu, Zhifang ^{[1
,2
]}

Wang, Zhi ^{[1
,2
]}

Liu, Yan-Ge ^{[1
,2
]}

Han, Tingting ^{[1
,2
]}

Li, Shuo ^{[1
,2
]}

Wei, Huifeng ^{[3
]}

机构：

[1] Nankai Univ, Key Lab Opt Informat & Technol, Minist Educ, Tianjin 300071, Peoples R China

[2] Nankai Univ, Inst Modern Opt, Tianjin 300071, Peoples R China

[3] Yangtze Opt Fiber & Cable Co Ltd R&D Ctr, State Key Lab Opt Fiber & Cable Mfg Technol, Wuhan 430073, Peoples R China

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 18期

基金：

中国国家自然科学基金;

关键词：

OPTICAL-FIBER; RESONANCES;

D O I：

10.1364/OE.19.017344

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate the fabrication of high-quality LPFGs in simplified hollow-core photonic crystal fibers, composed of a hollow hexagonal core and six crown-like air holes, using CO2-laser-irradiation method. Theoretical and experimental investigations indicate that the LPFGs are originated from the strong mode-coupling between the LP01 and LP11 core modes. And a dominant physical mechanism for the mode-coupling is experimentally confirmed to be the periodic microbends rather than the deformations of the cross-section or other common factors. In addition, the LPFGs are highly sensitive to strain and nearly insensitive to temperature, and are promising candidates for gas sensors and nonlinear optical devices. (C) 2011 Optical Society of America

引用

页码：17344 / 17349

页数：6

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