Title:
SEMICONDUCTOR LASER
Document Type and Number:
WIPO Patent Application WO/2024/000612
Kind Code:
A1
Abstract:
Disclosed in the present invention is a semiconductor laser, comprising: a light source module for outputting a single-mode seed light source; an optical wave beam-splitting waveguide chip for splitting the seed light source into a single-mode array; an optical gain module for amplifying each single-mode light beam in the single-mode array; and an optical wave beam-combining waveguide chip for performing phase modulation on the amplified single-mode light beams and then combining the single-mode light beams to form at least one laser beam to be output, wherein the light transmission loss of each of the two selected chips is less than a first preset value. By implementing the present invention, the light source module and the optical gain module are connected by means of the optical wave beam-splitting waveguide chip in an inter-chip integration mode, such that the structure of an original seed light source is not damaged, and the seed light source does not need to be specially customized and has large selectivity; meanwhile, beam combination processing is performed on the amplified light, and a chip having low light transmission loss is selected, such that high-power laser can be borne, a single mode is maintained, and the occurrence of the phenomenon that the laser performance is reduced and even the laser is burnt out because the temperature is too high is avoided.
Inventors:
LIU JINGWEI (CN)
LIU JIAN (CN)
ZHANG LINGZI (CN)
LIU JIAN (CN)
ZHANG LINGZI (CN)
Application Number:
PCT/CN2022/104196
Publication Date:
January 04, 2024
Filing Date:
July 06, 2022
Export Citation:
Assignee:
CHINA SCIENCE PHOTON CHIP HAINING TECH CO LTD (CN)
International Classes:
H01S5/12
Domestic Patent References:
| WO2008114896A1 | 2008-09-25 |
Foreign References:
| CN107611775A | 2018-01-19 | |||
| CN102208751A | 2011-10-05 | |||
| CN105068189A | 2015-11-18 | |||
| CN108767656A | 2018-11-06 | |||
| CN111580216A | 2020-08-25 | |||
| US20130209112A1 | 2013-08-15 |
Attorney, Agent or Firm:
SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD. (CN)
Download PDF: