拉锥光纤长周期光栅模式分裂与折射率特性

doi:10.12066/j.issn.1007-2861.1778

上海大学学报(自然科学版) ›› 2018, Vol. 24 ›› Issue (1): 27-32.doi: 10.12066/j.issn.1007-2861.1778

拉锥光纤长周期光栅模式分裂与折射率特性

周超, 石磊, 邹芳, 刘云启()

上海大学特种光纤与光接入网省部共建重点实验室,上海 200072

收稿日期:2016-04-28 出版日期:2018-02-28 发布日期:2018-03-02
通讯作者: 刘云启 E-mail:yqliu@shu.edu.cn
基金资助:
国家自然科学基金资助项目(61377083, 61077065)

Refractive index characteristics and mode splitting of long-period fiber gratings written in the tapered fiber

ZHOU Chao, SHI Lei, ZOU Fang, LIU Yunqi()

Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200072, China

Received:2016-04-28 Online:2018-02-28 Published:2018-03-02
Contact: LIU Yunqi E-mail:yqliu@shu.edu.cn

摘要/Abstract

摘要：

仿真研究了拉锥光纤长周期光栅的传输特性,发现长周期光纤光栅的同一阶包层模分布曲线在光纤锥区直径为 55$\sim$110 $\mu$m 时会发生分裂,且分裂后的光栅谐振峰对于外界折射率的灵敏特性有较大差别.

关键词: 长周期光纤光栅, 拉锥光纤, 折射率特性

Abstract:

Transmission characteristics of long-period fiber gratings (LPFGs) written in a tapered fiber is investigated by numerical simulation. It has been found that splitting of the mode distribution curve happens for the same order cladding mode of LPFG when the thinnest diameter of the tapered fiber is between 55 $\mu$m and 110 $\mu$m. The two resonance dips correspond to splitting from the same order cladding mode show different refractive index characteristics.

Key words: long-period fiber gratings, tapered fiber, refractive index characteristics

中图分类号:

TN253

周超, 石磊, 邹芳, 刘云启. 拉锥光纤长周期光栅模式分裂与折射率特性[J]. 上海大学学报(自然科学版), 2018, 24(1): 27-32.

ZHOU Chao, SHI Lei, ZOU Fang, LIU Yunqi. Refractive index characteristics and mode splitting of long-period fiber gratings written in the tapered fiber[J]. Journal of Shanghai University（Natural Science Edition）, 2018, 24(1): 27-32.

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参考文献 10

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拉锥光纤长周期光栅模式分裂与折射率特性

Refractive index characteristics and mode splitting of long-period fiber gratings written in the tapered fiber

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