公开(公告)号：US20200212653A1

公开(公告)日：2020-07-02

申请号：US16539665

申请日：2019-08-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： O-Kyun KWON ,  namje KIM ,  Miran PARK ,  Tae-Soo KIM ,  Shinmo AN ,  Won Seok HAN

IPC: H01S5/125 ,  H01S5/34 ,  H01S5/065

Abstract: Provided is a tunable semiconductor laser including an active gain region in which an optical signal is generated according to a modulation signal, a mode control region in which a resonant mode is controlled according to a mode control signal, and a signal chirp of the optical signal is compensated according to a first compensation signal determined based on the modulation signal, and a distributed Bragg reflector (DBR) region in which an oscillation wavelength of the optical signal is determined based on a wavelength selection signal for the optical signal, a second compensation signal for compensating for a thermal chirp of the optical signal on a basis of the modulation signal, and a heater signal provided to a heater electrode.