单层结构光纤布拉格光栅光谱特性研究  

Spectral Characteristics of Single Layer Fiber Bragg Grating

作　　者：赵洪霞[1] 丁志群[1] 程培红[1] 包蕾[1] 鲍吉龙[1] 蒋鹏[1] 李银杰[1] 

机构地区：[1]宁波工程学院电子与信息工程学院,浙江宁波315016

出　　处：《光子学报》2016年第3期102-105,共4页Acta Photonica Sinica

基　　金：浙江省自然科学基金(No.Q14A040006);宁波市自然科学基金(Nos.2015A610115;2015A61008)资助~~

摘　　要：基于单模微纳光纤基模有效折射率色散方程和光纤布拉格光栅谐振方程,研究单层结构光纤布拉格光栅光谱特性,并用FH酸化学腐蚀法制得单层结构布拉格光栅.理论和实验结果表明:随着光栅半径减小,单层结构光纤布拉格光栅谐振波长蓝移,且谐振波长个数由5个减少到1个,直至最后完全消失;随着光栅外环境折射率的减小,截止半径缩短,当折射率降到1时,截止半径减为0.55μm.The spectral characteristics of the single layer optical fiber Bragg grating was analyzed in detail based on single mode effective refractive index of micro-nano optical fiber dispersion equation and the resonance equation of the optical fiber Bragg grating.The single layer optical fiber Bragg grating obtained by FH acid etching.with the decrease of the fiber core radius,the resonance wavelength shift to the lift,and the resonant wavelength numbers are reduced from 5to 1,until finally disappeared;With the decrease of the refractive index grating external environment at the same time,the cut-off radius reduced,and when the grating external environment refractive index dropped to 1,the cut-off radius reduced to 0.55μm.

关 键 词：单层光纤布拉格光栅 光谱特性 谐振波长 光栅半径 环境折射率 

分 类 号：TN29[电子电信—物理电子学]