快速可调谐电光聚合物波导光栅  

Fast tunable electro-optic polymer waveguide gratings

作　　者：王义平[1] 陈建平[1] 李新碗[1] 周俊鹤[1] 沈浩[1] 施长海[1] 张晓红[1] 洪建勋[1] 叶爱伦[1] 

机构地区：[1]上海交通大学区域光纤通信网与新型光通信系统国家重点实验室,上海200030

出　　处：《物理学报》2005年第10期4782-4788,共7页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:90204006;60377013);中国博士后科学基金(批准号:2003034258);教育部博士点基金(批准号:20030248035);上海市科委基金(批准号:036105009)资助的课题.~~

摘　　要：提出并设计了快速可调谐电光聚合物波导光栅.该波导光栅通过极化聚合物的线性电光效应可实现谐振波长的纳秒级快速调谐,调谐灵敏度为61pm/V.研究了该波导光栅的反射谱和透射谱特性与光栅周期,周期数,折射率调制函数及其调制大小的关系.讨论了波导光栅的材料选择,制备工艺,快速可调谐性和偏振相关性.该波导光栅不仅克服了光纤光栅调谐速度慢和不利于大规模集成的不足,而且具有调谐灵敏度高,制备工艺与半导体工艺兼容和偏振无关等优点.A novel fast tunable electro-optic （EO） polymer waveguide grating is proposed and designed. Its resonant wavelength can be linearly tuned by first-order EO effect with a high sensitivity of 6.1 pm/V. Its spectrum characteristics depend strongly on many optical parameters of grating, such as refractive index modulation, modulation function, grating period and period number. Material selection, fabrication technology, EO tunability and polarization dependence of the polymer waveguide grating are also discussed. This waveguide grating not only dispenses with the slow wavelength tuning and large-scale integration inconvenience of conventional optic fiber gratings, but have many advantages, such as high resonant wavelength tuning sensitivity, using same fabrication technology as semiconductor devices, and polarization independence.

关 键 词：光通信器件 光波导 电光效应 聚合物 波导光栅 光纤光栅 电光聚合物 可调谐性 调谐灵敏度 线性电光效应 

分 类 号：TN252[电子电信—物理电子学] TN929.1