聚合物偶极子天线型光纤电场传感器  

Polymer dipole antenna-based fiber optic electric field sensors

作　　者：曲欣[1] 白一鸣[2] 王博[3] 王晓林[1] 吴伯瑜[4] 王晓工[1] 

机构地区：[1]清华大学化学工程系高分子研究所,北京100084 [2]辽宁大学物理学院,辽宁沈阳110036 [3]清华大学电机工程与应用电子技术系 [4]清华大学电子工程系,北京100084

出　　处：《光电子．激光》2011年第2期163-165,共3页Journal of Optoelectronics·Laser

基　　金：国家"863"计划资助项目(2007AA03Z409)

摘　　要：设计并初步成功制作了聚合物光纤电场传感器。假设聚合物材料的电光系数r13=10 pm/V,设计的两种电场传感器的半波电场Eπ=36.2和15.8 kV/m。用自制的二阶非线性光学聚合物BPAN-NT作为聚合物光纤电场传感器的芯层材料,制作了电光调制器。用反应离子刻蚀的方法制作脊形光波导,通过电晕极化使芯层具有电光效应,利用溅射及光刻的方法制作偶极子天线电极。对电场传感器进行了低频电压模拟测试,输出光功率信号随电极电压呈线性变化,证明了研制的聚合物光纤电场传感器的可行性,它可用于强电场测量。Polymer fiber-optic electric field sensors were designed and fabricated,using polymer BPAN-NT material as the active core layer.Assuming that the electro-optic coefficient r13 of the core polymer is 10 pm/V,electric field sensors were designed with half-wave electric fields of 36.2 kV/m and 15.8 kV/m,respectively.The optical ridge waveguide was fabricated by reactive ion etching（RIE）,the active polymer core was poled by corona,and the dipole antenna electrode was processed by sputtering and lithography.The electric field sensors were tested under low-frequency voltages.The optical signals vary linearly with the voltage signals.The results demonstrate the feasibility of the electric field sensor and its potential in high electric field measurement.

关 键 词：聚合物 电光效应 电场传感器 偶极子天线 

分 类 号：TN253[电子电信—物理电子学]