Semiconductor optical device and optical signal modulation method
By employing an integrated multi-segment tandem laser in semiconductor optical devices, multi-wavelength optical signal output within different time periods is achieved, solving the problems of high complexity and poor stability in optical detection systems and improving the ranging stability and accuracy of lidar.
CN122159053APending Publication Date: 2026-06-05北京集光智研科技有限公司
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 北京集光智研科技有限公司
- Filing Date
- 2024-12-04
- Publication Date
- 2026-06-05
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Figure CN122159053A_ABST
Abstract
The application discloses a semiconductor optical device and an optical signal modulation method. The semiconductor optical device comprises an integrated multi-section serial laser based on a same active region, and is used for emitting optical signals of different lasing wavelengths through a same lasing end face in different time periods of a modulation period in an application scenario of a frequency-modulated continuous wave signal. In one modulation period, each section of the multi-section serial laser independently emits an optical signal of a specific wavelength and keeps continuous wave operation, so as to realize frequency-modulated output of a certain time proportion and jointly form a modulation signal of a complete period. Through the application, the technical problem that the semiconductor optical device in the related art has high complexity and poor stability of an optical detection system due to the need of introducing multiple lasers is solved.
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