回音壁-FP-侧向光栅耦合腔半导体激光器
By introducing a lateral grating into a whispering-gallery-FP coupled-cavity semiconductor laser, a high-quality coupling mode is formed, solving the problems of lasing wavelength uncertainty and multimode lasing in small volume, and realizing stable high-power narrow-linewidth laser output, which is suitable for optical communication and photonic integrated circuits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
- Filing Date
- 2023-01-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing whispering-gallery-FP coupled-cavity semiconductor lasers are difficult to achieve stable single-mode, high-power, narrow-linewidth laser output in a small volume, and the uncertainty of lasing wavelength and multimode lasing problems limit their application in optical communication and photonic integrated circuits.
A whispering-FP-side-grating coupled-cavity semiconductor laser is designed. By introducing a side grating between the whispering-gallery type microcavity and the FP type microcavity, a high-quality coupling mode is formed. Stable single-mode lasing is achieved by controlling the reflectivity and period number of the grating using the Bragg condition.
It achieves high-power, narrow-linewidth laser output, improves laser gain and mode photon number density, ensures laser stability and efficient coupling, and has the advantages of small size, simple fabrication, and low cost. It is suitable for optical communication, optical information processing, and photonic integrated circuits.
Smart Images
Figure CN115986559B_ABST