Semiconductor laser and manufacturing method thereof
The adjacent bar strips are connected by welding sheets and the ceramic substrate array is used to improve heat dissipation efficiency, which solves the spot uniformity and power density problems caused by the beam gap between bars in semiconductor lasers, achieving more efficient thermal management and stable operation.
CN119209204AActive Publication Date: 2024-12-27BWT BEIJING
Patent Information
- Application Number
- CN202411708764.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2044-11-27
AI Technical Summary
Technical Problem
In existing semiconductor lasers, the beam gap is caused by the transition heat sink between bars, which affects the spot uniformity and power density.
Method used
Welding sheets are used to connect adjacent bars, eliminate the transition heat sink, and use a ceramic substrate array to quickly introduce heat into the base to improve heat dissipation efficiency.
Benefits of technology
Improve the uniformity and power density of the light spot to ensure the safe and stable operation of the semiconductor laser.
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Smart Images
Figure CN119209204A_ABST
Abstract
The invention provides a semiconductor laser, which comprises a bar array comprising a plurality of bars, and adjacent bars are connected through soldering lugs; the ceramic substrate array comprises a plurality of ceramic substrates, and the top surfaces of the ceramic substrates are in one-to-one correspondence contact with the end surfaces of the bar rear cavities; the end heat sinks are arranged at the two ends of the bar array; the electrode parts are arranged at the two ends of the end heat sink; and the base is arranged below the ceramic substrate array and is in contact with the bottom surfaces of the ceramic substrates. According to the semiconductor laser, the adjacent bars in the bar array are directly connected through the soldering lugs, and a transition heat sink is omitted, so that the physical gap between the adjacent bars is greatly reduced, the overlap ratio of light beams emitted by the bars is higher, and the uniformity and the power density of finally synthesized light spots are improved.
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Citation Information
Patent Citations
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