基于光纤延迟的光脉冲有源复制器  

Optical pulse active replicator based on fiber-optic delay-time

作　　者：酆达[1] 李铮[1] 郑铮[1] 陈宇晓[2] 唐丹[2] 

机构地区：[1]北京航空航天大学电子信息工程学院,北京100083 [2]中国工程物理研究院电子工程研究所,绵阳621900

出　　处：《北京航空航天大学学报》2005年第2期212-217,共6页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家自然科学基金;中国工程物理研究院联合基金资助项目 (10 1760 0 1)

摘　　要：根据高速光脉冲测量系统应用的需求 ,提出了使用循环式光纤光脉冲有源复制器实现模拟短脉冲信号的低噪音、低失真复制的一种方法 .针对有源复制器中半导体光放大器 (SOA)带来的放大自发辐射 (ASE)光噪声与非线性失真 ,建立了SOA的计算模型 ,并对光脉冲在复制器中的循环传输性能进行了仿真和分析 .仿真结果证明了使用外加直流光注入方法抑制波形失真的有源复制器方案是可行的 ,同时为合理选择注入直流光功率及环内损耗等参数 ,实现复制器的优化设计提供了依据 .Based on the fiber circulating delay line, an optical pulse active replicator using semiconductor optical amplifier (SOA) was proposed for high-fidelity replication of short analog optical pulses according to the requirements of a short optical pulse measurement system. Taking into account amplified spontaneous emission (ASE), a numerical model of SOA was developed in order to investigate a single-shot optical pulse recirculating propagation in the active replicator with a SOA. Simulation and analyses indicate that the optical pulse active replicator, which uses pumping light injection to restrain pulse shape distortion, is feasible. The results provided optimal design bases for the optical pulse active replicator by choosing appropriately operating parameters, such as the power of pumping light injection and the loss within the replicator loop.

关 键 词：光脉冲 光放大器 光延迟 放大自发辐射 

分 类 号：TN253[电子电信—物理电子学]