折射率啁啾调制光纤光栅性能研究  

Research of Fiber Bragg Gratings with Chirped Refractive Index Modulation

作　　者：吴强[1] 余重秀[1] 王葵如[1] 忻向军[1] 王旭[1] 于志辉[1] 

机构地区：[1]北京邮电大学电子工程学院,北京100876

出　　处：《光电子．激光》2004年第11期1274-1278,共5页Journal of Optoelectronics·Laser

基　　金：国家"863"计划资助项目(2001AA312240);国家自然科学基金资助项目(60177018)

摘　　要：从耦合模理论出发,详细推导出平均折射率调制啁啾系数、初始位置平均折射率调制系数和啁啾光纤Bragg光栅(FBG)周期啁啾系数之间的对应关系,并进行了数值模拟和实验研究。结果表明:通过对平均折射率调制系数进行啁啾控制,可以利用一块相位掩膜版制作出不同色散补偿量的FBG。The detailed corresponding relationship of chirped refractive index modulation coefficient, initial refractive index modulation and grating periods chirp coefficient were deduced by using coupled-mode theory, and both the numerical simulation investigation and experimental results were also given. The conclusions are drawn as follows: the equivalent grating periods chirp coefficient is determined by both the chirped refractive index modulation coefficient c and initial reactive index modulation δ¯neff. Both the equivalent grating periods chirp coefficient and grating periods chirp coefficient cp act together to determine the dispersion compensation amount. By properly controlling the average refractive index modulation, we can fabricate different dispersion compensation amount fiber Bragg gratings by using the same phase mask.

关 键 词：啁啾 折射率调制 光纤光栅 FBG 耦合模理论 相位掩膜 色散补偿 平均 系数和 推导 

分 类 号：TN253[电子电信—物理电子学] TN929