公开(公告)号：US20240162682A1

公开(公告)日：2024-05-16

申请号：US17987821

申请日：2022-11-15

申请人： Zhigang Zhou ,  Kevin Boyd ,  Guang-Hua Duan ,  Min Huang ,  Zhenming Xie ,  Rihao Li ,  Qiang Liu ,  Huixian Wen ,  Jianguo Wang

发明人： Zhigang Zhou ,  Kevin Boyd ,  Guang-Hua Duan ,  Min Huang ,  Zhenming Xie ,  Rihao Li ,  Qiang Liu ,  Huixian Wen ,  Jianguo Wang

IPC分类号： H01S5/14 ,  H01S5/00 ,  H01S5/02253 ,  H01S5/0234 ,  H01S5/06 ,  H04B10/50

CPC分类号： H01S5/141 ,  H01S5/0014 ,  H01S5/0064 ,  H01S5/02253 ,  H01S5/0234 ,  H01S5/0612 ,  H04B10/503

摘要： An external cavity tunable laser includes a gain median module to generate a broadband optical spectrum covering a predetermined wavelength range; a collimate lens turning a diverging beam into a collimated beam; a pair of etalons to tune frequency; an actuator to adjust an external cavity optical pathlength; a bandpass filter to block one or more frequencies outside the predetermined wavelength range; a beam splitter to split a percentage of the beam to a photodetector; a reflection mirror for feedback to gain median waveguide; an isolator for preventing reflecting light back to the external cavity; and a hermetically sealed housing less than 0.15 cubic centimeters.