小型化高隔离度平衡光电探测器阵列研究  

Research on miniaturized high-isolation balanced photodetector array

作　　者：王栋 陈代尧 卢朝保 谭荣 黄梦 WANG Dong;CHEN Daiyao;LU Chaobao;TAN Rong;HUANG Meng(Chengdu Ganide Technology Co.,Ltd.,Chengdu 610041,China;Sichuan Provincial Key Laboratory of Microwave Photonics,Chengdu 610029,China)

机构地区：[1]成都嘉纳海威科技有限责任公司,成都610041 [2]微波光子技术四川省重点实验室,成都610029

出　　处：《光通信技术》2024年第5期97-101,共5页Optical Communication Technology

基　　金：微波光子技术四川省重点实验室基金项目(WMP2023-00)资助。

摘　　要：针对传统微波光子应用平衡光电探测器体积大、集成度低的问题,设计了一种基于光电混合集成封装技术的小型化、高隔离度平衡光电探测器阵列,通过集成多个平衡光电二极管芯片及其偏置与匹配电路,实现了4个独立通道的平衡光电探测功能,每个通道平均体积仅为588 mm3。此外,搭建了测试系统,对平衡光电探测器阵列的性能进行测试。测试结果表明:该平衡光电探测器阵列各个通道的响应度大于0.9 A/W,3 dB带宽约为12 GHz,带宽范围内的通道一致性优于±0.43 dB,共模抑制比大于30 dB,通道隔离度在50 dBc以上,在10 GHz处的饱和输入光功率大于8.4 dBm。Aiming at the problems of large volume and low integration of conventional balanced photodetectors for microwave photonics applications,a miniaturized,high-isolation balanced photodetector array based on hybrid photoelectric package technology is designed.By integrating multiple balanced photodiode chips and their bias and matching circuits,the balanced photodetector function of 4 independent channels is realized.The average volume of each channel is only 588 mm3.In addition,a test system is set up to test the performance of the balanced photodetector array.The test results show that the response of each channel of the balanced photodetector array is greater than 0.9 A/W,the bandwidth of 3 dB is about 12 GHz,the channel consistency in the bandwidth range is better than ±0.43 dB,the common mode rejection ratio is greater than 30 dB,the channel isolation is greater than 50 dBc,and the saturated input optical power at 10 GHz is greater than 8.4 dBm.

关 键 词：微波光子 平衡光电探测器阵列 小型化 高隔离度 光电混合集成 

分 类 号：TN256[电子电信—物理电子学]