Polarization dependent cladding modes coupling and spectral analyses of excessively tilted fiber grating
Polarization dependent cladding modes coupling and spectral analyses of excessively tilted fiber grating
复制标题
过度倾斜光纤光栅的偏振相关包层模式耦合和光谱分析
DOI：
10.1364/oe.382528
复制
发表时间：
2020-01-20
期刊：
影响因子：
3.8
通讯作者：
Zhang, Lin
中科院分区：
文献类型：
--
作者：
Shen, Fangcheng;Zhou, Kaiming;Zhang, Lin
We report on the detailed analyses of mode coupling from fiber core to cladding in excessively tilted fiber gratings (ETFGs). Cladding modes responsible for the typical dual peak pairs in the transmission spectrum of ETFGs are identified with phase matching condition, which suggests two set of dual peak pairs generated from coupling to cladding modes with even and odd azimuthal order. The polarization dependence of those dual peak pairs are also investigated by calculating the coupling coefficients of cladding modes for two orthogonal polarizations. With the calculated coupling coefficients, the measured polarization dependent spectra can be reproduced numerically. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
