Fast tunable and broadband microwave sweep-frequency source based on photonic technology  

作　　者：ZHU NingHua DU YuanXin WU XuMing ZHENG JianYu WANG Hui LIU JianGuo 

机构地区：[1]State Key Laboratory on Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences

出　　处：《Chinese Science Bulletin》2013年第7期612-616,共5页

基　　金：supported by the National Basic Research Program of China ("973" Project) (Grant Nos. 2012CB315702, 2012CB315703);the National Natural Science Foundation of China (Grant Nos. 61090390,61275078);the Foundation for Innovative Research Groups of the National Natural Science Foundation of China (Grant No. 61021003)

摘　　要：A high-speed broadband tunable microwave source utilizing the wavelength tunable characteristics of distributed Bragg reflector(DBR) laser is proposed and demonstrated.The wavelength tuning of the laser is achieved instantaneously by controlling the voltage of the phase section of the DBR laser.By means of optical delay self-heterodyne technology,the microwave signal with the property of frequency broadband tuning is generated.Sweep speeds of 5 and 40 μs of the sweep-frequency source prototype were achieved and the maximum tuning range was up to 38.45 GHz.A high-speed broadband tunable microwave source utilizing the wavelength tunable characteristics of distributed Bragg re- flector （DBR） laser is proposed and demonstrated. The wavelength tuning of the laser is achieved instantaneously by control- ling the voltage of the phase section of the DBR laser. By means of optical delay self-heterodyne technology, the microwave signal with the property of frequency broadband tuning is generated. Sweep speeds of 5 and 40 gs of the sweep-frequency source prototype were achieved and the maximum tuning range was up to 38.45 GHz.

关 键 词：扫频信号源 光子技术 宽带微波 DBR激光器 可调谐 基础 波长调谐 调谐特性 

分 类 号：TN911.6[电子电信—通信与信息系统] TN2[电子电信—信息与通信工程]