光学精密工程2017，Vol.25Issue(10)：2736-2743,8.DOI:10.3788/OPE.20172510.2736
高速空间相干光平衡探测器结构优化
Structure optimization of high speed space coherent optical balance detectors
摘要
Abstract
The circuit structure and noise characteristics of a high-speed spatial coherent balanced de-tector were analyzed ,and the dependence of key technical parameters on the circuit structure of the balanced detector was clarified .Two kinds of high-speed spatial balanced photoelectric detectors were designed by using resistance sampling and double TIA (Transimpedance Amplifier) synthesis ,and their performance parameters were verified by experiments .The experiments indicate that both kinds of high-speed coherent detectors can be used for high-speed coherent detection ,while the detection sensitivity and anti-noise performance from the double TIA voltage synthesis balanced detector are better than those from the resistance sampling type detector .When the communication rate is 5Gbps and the bit error rate is 10-8 ,the optimal detection sensitivity of resistance sampling type balanced de-tector is -33 .51 dBm ,and that of the double TIA synthesis balanced detector is -43 .4 dBm ,higher nearly 8dB than that of the Discovery's 5Gbps balanced detector .The research on the structure of high-speed spatial coherent photodetector provides a theoretical basis for the establishment of a high-sensitivity and high-speed spatial coherent optical communication system .关键词
平衡探测器/相干光通信/本振光功率/结构优化/噪声功率Key words
balanced detector/coherent optical communication/local-oscillator power/structure opti-mization/noise power分类
信息技术与安全科学引用本文复制引用
代永红,梁赫西,武强,杨海峰,卢欧欣..高速空间相干光平衡探测器结构优化[J].光学精密工程,2017,25(10):2736-2743,8.基金项目
国家自然科学基金资助项目(No.11204220,No.61273053) （No.11204220,No.61273053）
中国西南电子技术研究所技术创新基金资助项目(No.H15017) （No.H15017）
