各向异性材料包层光纤Bragg光栅的反射谱

量子电子学报 , 2008, 25(5): 625-629. doi: 10.3969/j.issn.1007-5461.2008.05.020

各向异性材料包层光纤Bragg光栅的反射谱

侯尚林 ^1, , 李鸿伯 ^2, , 黎锁平 ^3, , 王道斌 ^4, , 雷景丽 ^5,

1.兰州理工大学理学院,甘肃,兰州,730050;京邮电大学教育部光通信和光波技术重点实验室,北京,100876

2.兰州理工大学理学院,甘肃,兰州,730050

3.兰州理工大学理学院,甘肃,兰州,730050

4.兰州理工大学理学院,甘肃,兰州,730050

5.兰州理工大学理学院,甘肃,兰州,730050

基金项目: 甘肃省自然科学基金(3ZS062-B25-036) 国家重点基础研究发展计划(973计划)(2003CB314960) 兰州理工大学校科研和教改项目甘肃省教育厅科研项目(0703-10)

关键词：纤维与波导光学 , 功率限制因子 , 光纤Bragg光栅 , 单轴晶体材料 , 反射率

Reflectivity spectra of fiber Bragg gratings with anisotropic crystal material cladding

应用数值解法对包层为单轴晶体材料且其光轴平行于光纤轴的光纤功率限制因子进行了理论模拟,并从模式特性出发解释了kcl对该类光纤Bragg光栅的反射率的影响.计算结果表明:对于HE11模,各向同性材料包层光纤中的能量比单轴晶体材料包层光纤中的能量更容易集中在纤芯中传输,而且集中程度与kcl的取值有关;各向异性材料包层比各向同性材料包层的光纤Bragg光栅的反射率要高;此类光纤Bragg光栅的反射率主要是由光纤纤芯和包层中能量分布决定的.

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各向异性材料包层光纤Bragg光栅的反射谱

Reflectivity spectra of fiber Bragg gratings with anisotropic crystal material cladding

参考文献