Photonic generation of switchable multi-format linearly chirped signals  

作　　者：Guodong Wang Qingqing Meng Hengli Han Xuan Li Yixiao Zhou Zihang Zhu Congrui Gao He Li Shanghong Zhao 王国栋;孟晴晴;韩恒利;李轩;周逸潇;朱子行;高从芮;李赫;赵尚弘(College of Information and Navigation,Air Force Engineering University,Xi'an 710077,China;Chongqing Optoelectronics Research Institute,Chongqing 400060,China)

机构地区：[1]College of Information and Navigation,Air Force Engineering University,Xi'an 710077,China [2]Chongqing Optoelectronics Research Institute,Chongqing 400060,China

出　　处：《Chinese Optics Letters》2022年第6期72-77,共6页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.61901507);the Natural Science Foundation of Shaanxi Province(No.2019JQ707);the Project of Science and Technology New Star of Shaanxi Province(2019KJXX-082)。

摘　　要：A compact and cost-effective photonic approach for generating switchable multi-format linearly chirped signals is proposed and experimentally demonstrated.The core component is a dual-drive Mach–Zehnder modulator driven by a coding sequence and a linearly chirped waveform.By properly setting the amplitudes of the coding sequence,a linearly chirped signal with different formats,including the frequency shift keying[FSK],phase shift keying[PSK],dual-band PSK,and FSK/PSK modulation formats,can be generated.Experiments are conducted to verify the feasibility of the proposed scheme.Linearly chirped signals with the above four formats are successfully generated.The scheme features multiple formats and high tunability based on a compact structure,which has potential applications in modern multifunctional systems.

关 键 词：microwave photonics linearly chirped signal switchable format 

分 类 号：TN015[电子电信—物理电子学] O43[机械工程—光学工程]