基于掺杂氧化硅波导的受激布里渊散射瞬时频率测量  

Instantaneous frequency measurement of stimulated Brillouin scattering based on doped silica waveguides

作　　者：李淑静 李杏 陈建平[1] 邹卫文 LI Shujing;LI Xing;CHEN Jianping;ZOU Weiwen(School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《光通信技术》2020年第8期27-30,共4页Optical Communication Technology

基　　金：国家自然科学基金(61822508、61571292、61535006)资助。

摘　　要：针对布里渊模拟信号处理系统小型化的需求,提出一种基于掺杂氧化硅波导的受激布里渊散射瞬时频率测量(SBS-IFM)方案。这种方案在链路中添加锁相放大器与滤波器,有效滤除了反射光,放大并观测到了掺杂氧化硅波导中的布里渊增益信号。通过相对移动泵浦光和探测光的调制频率,实现了基于掺杂氧化硅波导的SBS-IFM,其IFM范围约15 GHz,精度达60 MHz。Aiming at the requirement of miniaturization of Brillouin analog signal processing system,this paper presents a stimulated Brillouin scattering instantaneous frequency measurement(SBS-IFM)scheme based on the doped silica waveguide.In this scheme,the reflected light is effectively filtered out,and the Brillouin gain signal in the doped silica waveguide is amplified and observed by adding a lock-in amplifier and a filter.SBS-IFM based on the doped silica waveguide is realized by relatively moving the modulation frequency of pump light and the probe light,the IFM range of this scheme is about 15 GHz and the accuracy can reach 60 MHz.

关 键 词：微波光子 瞬时频率测量 布里渊增益 氧化硅波导 模拟信号处理 

分 类 号：TM935.1[电气工程—电力电子与电力传动]