对称推挽型有机聚合物电光波导调制器  

Polymeric Electrooptic Modulator with Full Symmetric Push Pull Operation

作　　者：周毅[1] 邱伟 金国良 陈益新 陈英礼 孙诗瑛[2] 

机构地区：[1]上海交通大学应用物理系 [2]上海交通大学电子工程系

出　　处：《光学学报》1998年第3期351-356,共6页Acta Optica Sinica

基　　金：国家自然科学基金

摘　　要：提出了在极化有机聚合物电光波导调制器中使用局域极化结构。利用该结构，能够在电光调制器中实现完全对称的推挽操作。由于将集成光学电光调制器中常用的平面电极改为使用上下结构的微带电极，并且将槽线结构用于接地电极，使器件性能发生变化。文中对反映光波与微波相互作用强度的重叠积分进行了详细计算，并对器件性能的改变进行了比较。结果表明由于局域极化结构的使用，将大大提高器件的调制性能。Local poling structure was proposed for the application in polymeric electrooptic modulator. With this structure, full symmetric push pull operation can be realized in modulator. We suggest the use of microstrip line electrode instead of coplanar electrode and the use of soltline to ground electrode in microstrip line. The overlap integral between lightwave and microwave were calculated. Performances of devices with two kinds of electrodes were compared. Results show that the performance of the modulator with local poling structure will be enhanced considerably.

关 键 词：调制器 电光波导 对称推型挽型 有机聚合物 

分 类 号：TN252.03[电子电信—物理电子学]