Laser beam combining system
By introducing a combined structure of wavelength-locked laser unit, beam compression unit and beam combining unit into the laser beam combining system, the problems of complex optical path and high optical power loss in external cavity beam combining lasers are solved, achieving the effects of simplified assembly and reduced optical power loss.
CN122131500APending Publication Date: 2026-06-02BEIJING ZHONGCHEN XINGUANG TECHNOLOGY CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-05
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
Existing external cavity laser combiners have complex optical path structures, are difficult to assemble and adjust, and suffer from high optical power loss.
Method used
It adopts a combination structure of multiple wavelength-locked laser units, beam compression units and beam combining units. The beam spacing is compressed by compression mirrors and Galileo beam expanders, and the beam combining process is performed directly, avoiding multiple fiber coupling and splicing.
Benefits of technology
It simplifies the optical path structure, reduces assembly and adjustment difficulty, reduces optical power loss, and shrinks the size of the laser beam combining system.
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Figure CN122131500A_ABST
Abstract
This application discloses a laser beam combining system, including multiple wavelength-locked laser units, a beam compression unit, and a beam combining unit. The multiple wavelength-locked laser units can generate multiple parallel light bands, each containing multiple wavelength-locked and parallel beams. The beam compression unit includes multiple compression mirrors and a Galilean beam expander module. The compression mirrors reflect the light bands from the wavelength-locked laser units to the Galilean beam expander module, which compresses the spacing between the parallel beams. The beam combining unit is located downstream of the Galilean beam expander module and combines the multiple parallel beams for output. After the Galilean beam expander module compresses the spacing between the beams, the beams enter the beam combining unit and are combined into a high-power, high-brightness laser beam under the action of the beam combining unit. This eliminates the need for multiple fiber couplings and fiber fusion splices, thus reducing the number of optical components, lowering the assembly and adjustment complexity, reducing the size of the laser beam combining system, and reducing optical power loss.
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