Multi-pass disk laser amplifier
By designing a compact optical path structure and utilizing parabolic reflectors and deflecting optical prisms for multiple reflections on the laser gain medium, the problems of complex structure and large size of traditional disk-type laser multi-pass amplification systems are solved, achieving efficient laser processing.
CN117394119BActive Publication Date: 2026-04-17周煌
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Patent Information
- Application Number
- CN202310198263.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-03
- Publication Date
- 2026-04-17
- Estimated Expiration
- 2043-03-03
AI Technical Summary
Technical Problem
Traditional disk-type laser multi-pass amplification systems are complex in structure, bulky in size, and have extremely long optical paths, making them difficult to meet the needs of compact laser processing.
Method used
By employing a near-end and far-end structure, the pump laser beam and the seed laser beam are reflected multiple times on the laser gain medium through a parabolic reflector and a deflecting optical prism group, respectively, to achieve multi-pass amplification through a compact optical path.
Benefits of technology
It achieves a simpler structure, shorter amplification optical path, more compact size and higher system stability, making it suitable for laser processing with high repetition rate and high single pulse energy.
✦ Generated by Eureka AI based on patent content.
Abstract
The application discloses a multi-pass disk laser amplifier, which comprises a near end and a far end, a pump laser beam, a seed laser beam, a first parabolic mirror, a second parabolic mirror, a laser gain medium, a first deflection optical prism group and a second deflection optical prism group, wherein the laser gain medium comprises a medium reflection surface; the pump laser beam located at the near end is aligned to the first parabolic mirror located at the far end for incidence through a first beam collimator; and the seed laser beam located at the near end is aligned to the second parabolic mirror located at the far end for incidence after passing through a second beam collimator. Compared with a conventional multi-pass disk laser amplifier, the application has a simpler structure, a shorter amplification optical path, a more compact volume and higher system stability. Furthermore, by changing the structure of the design prism of the pump light path, 12-pass, 24-pass, 36-pass, 48-pass and other multi-pass amplifications can be realized.
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