公开(公告)号：US20220337030A1

公开(公告)日：2022-10-20

申请号：US17753968

申请日：2019-12-13

申请人： ACCELINK TECHNOLOGIES CO., LTD.

发明人： Hongchun Xu ,  Xueyong Zhang ,  Bo Zhang ,  Jing Wang ,  Zhiqiang Chen ,  Sen Hu ,  Jie Zhou

IPC分类号： H01S5/042 ,  H04B10/50

摘要： A drive circuit for a direct modulated laser and a direct modulated optical transmitter. The drive circuit includes a service data drive unit, a voltage configuration unit, a monitoring data modulation unit, and a monitoring current generation unit. Output terminals of the voltage configuration unit and the monitoring data modulation unit are connected to a same input terminal of the monitoring current generation unit. An output terminal of the service data drive unit is connected to a current sink interface of the monitoring current generation unit, and is suitable for connecting a direct modulated laser. In the technical solution, a low-speed monitoring data signal is mixed into an average optical power signal of a high-speed service data light wave from the direct modulated laser, then is extracted from the received optical signal by a remote optical receiver, enabling the drive circuit to be remotely monitored.