Wavelength synchronization technology for UDWDM-PON transmitter based on injection locking  

作　　者：Ju Wang Ting Jia Shuaishuai Wang Tianyu Li Chuang Ma Tianyuan Xie Yang Yu Jinlong Yu 王菊;贾婷;王帅帅;李天宇;马闯;谢田元;于洋;于晋龙(School of Electrical and Information Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]School of Electrical and Information Engineering,Tianjin University,Tianjin 300072,China

出　　处：《Chinese Optics Letters》2021年第1期7-13,共7页中国光学快报（英文版）

基　　金：supported in part by the National Natural Science Foundation of China(NSFC)(Nos.61775162 and 61427817)。

摘　　要：We propose a concept of wavelength synchronization to ensure the stability of ultra-dense channels in an ultra-dense wavelength division multiplexing passive optical network(UDWDM-PON)transmitter.A mode-locked laser is used to provide wavelength references for users.By injection locking the semiconductor laser,the separation of the wavelength reference is realized in an optical line terminal.The downlink and uplink wavelength references are interlaced and distributed to facilitate the synchronization of uplink carriers.In the optical network unit,the uplink optical carriers are filtered by injection locking semiconductor lasers,which achieve wavelength synchronization for the uplink users.In this Letter,an adaptive wavelength synchronization transmitter for UDWDM-PON is realized with a channel spacing of 5 GHz.

关 键 词：optical access network injection locking UDWDM-PON wavelength synchronization 

分 类 号：TN838[电子电信—信息与通信工程] TN248