公开(公告)号：US20180323578A1

公开(公告)日：2018-11-08

申请号：US16034471

申请日：2018-07-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jifang HE ,  Hongmin CHEN ,  Hongbing LEI ,  Xiao Andy SHEN

IPC: H01S5/0683 ,  H01S5/026 ,  H01S5/06

Abstract: A tunable laser is provided, including a first reflector, a second reflector, a phase adjustment area, a gain area, a first detector, a second detector, and a controller. The phase adjustment area is located between the first reflector and the gain area, the gain area is located between the phase adjustment area and the second reflector, a reflectivity of the first reflector is adjustable, and a reflectivity of the second reflector is adjustable. The first detector is configured to convert an optical signal of the first reflector into a first electrical signal. The second detector is configured to convert an optical signal of the second reflector into a second electrical signal. The controller is configured to adjust at least one of the reflectivity of the first reflector or the reflectivity of the second reflector based on the first electrical signal and the second electrical signal.