包层变化型光纤光栅传输特性研究  

Study on the Transmission of Clading Radius Various Fiber Bragg Grating

作　　者：王国东[1] 刘彩霞[1] 郭文滨[1] 孙东明[1] 常惠明[1] 陈维友[1] 

机构地区：[1]吉林大学电子科学与工程学院集成光电子学国家重点实验室,吉林长春130021

出　　处：《光电子．激光》2004年第9期1050-1052,共3页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金资助项目(69937010);吉林省杰出青年基金资助项目(20005504)

摘　　要：运用传输矩阵理论分析了一种包层半径变化的光栅结构。对包层形状变化取不同形式的光栅传输特性进行了模拟。研究发现,包层半径沿z轴非单调变化将比单调变化时具有更好的方波形反射谱;当半径变化因子g取0.1,包层形状为sin型及外加应力F为1.0N时,可以得到带宽为0.9nm,中心波长为1.55685μm的方波形反射谱。对光栅施加外力时的应变响应进行了研究,发现其对应力也是非常敏感的。The transmission properties of the clading radius various fiber Bragg grating(FBG) was studied on the basis of the transfer matrix theory.Compared with several different type of clading radius various,we have got the conclusion that when the clading radius various was not humdrum its reflective spectrum was more perpendicular than its vary humdrum.When the cladding radius various gene take the value of g=0.1, the type of cladding radius various take sinusoidal,type and the strainF=1.0 N,one can get the ideal rectangular reflection spectrum with the center wavelength λ=1.556 85 μm and the band width w=0.9 nm.At last,we have found that this type grating was sensitive for strain.

关 键 词：包层 传输特性 反射谱 光纤光栅 中心波长 传输矩阵 带宽 半径 因子 光栅结构 

分 类 号：TN818[电子电信—信息与通信工程] TN253