公开(公告)号：US20240250500A1

公开(公告)日：2024-07-25

申请号：US18624339

申请日：2024-04-02

Applicant: Hainan Normal University

Inventor： Zhongliang Qiao ,  Yi Qu ,  Haoran Wan ,  Wenjun Yu ,  Dengqun Weng ,  Xiaohu Hou ,  Menghao Wu ,  Ke Hu ,  Zhibin Zhao ,  Hao Chen ,  Zaijin Li ,  Lina Zeng ,  Lin Li ,  Guojun Liu

IPC: H01S5/065 ,  H01S5/026 ,  H01S5/10 ,  H01S5/12 ,  H01S5/22 ,  H01S5/343

CPC classification number: H01S5/0657 ,  H01S5/026 ,  H01S5/1021 ,  H01S5/1039 ,  H01S5/12 ,  H01S5/22 ,  H01S5/34313 ,  H01S5/34346

Abstract: A monolithic integrated multi-segment cascade optical frequency comb and its chip are disclosed, which belongs to the technical field of sensing detection, quantum information and optical communication technology. The optical frequency comb includes a first semiconductor passive mode-locking laser, a semiconductor optical amplifier, and a second semiconductor passive mode-locking laser sequentially integrated and connected; the first semiconductor passive mode-locking laser includes a first reverse bias absorption area integrated with an optogalvanic distribution grating and a first gain cavity length extender (coupled multi-ring or multi-disk); the second semiconductor passive mode-locking laser includes a second reverse bias absorption area and a second gain cavity length extender (coupled multi-ring or multi-disk); each structure is connected to each other by electrical isolation grooves. Through the above structure, the present disclosure realizes an optical frequency comb with small size, high efficiency, tunable, fundamental mode, high power, narrow pulse width, wide spectrum and flexible controllability.