High-power yellow-green laser generation method and fiber laser

By optimizing the optical path design and device combination of fiber lasers, the problems of low power and high cost in existing yellow-green laser generation technologies have been solved, achieving high-power, low-cost and highly stable yellow-green laser output.

CN121886110AActive Publication Date: 2026-04-17深圳公大激光有限公司
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Patent Information

Application Number
CN202610331611.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-18
Publication Date
2026-04-17
Estimated Expiration
2046-03-18

AI Technical Summary

Technical Problem

Existing yellow-green laser generation technologies cannot simultaneously achieve high power output, high stability, simplified structure, and low-cost control, and there is a lack of a low-cost high-power yellow-green laser technology solution.

Method used

Using a fiber laser, including a first seed source, a second seed source, a wavelength division multiplexer, a pump source, a beam combiner, a ytterbium-doped fiber, a collimator, a dichroic mirror, and a frequency doubling crystal, high-power yellow-green laser is generated by optimizing the spectral modulation design and coordinating with the pump source, simplifying the optical path structure and reducing equipment costs.

Benefits of technology

It has achieved the generation of high-power yellow-green lasers, simplified the optical path structure and control logic, reduced the equipment hardware and assembly and debugging costs, broken through the limitation of power improvement by the SBS effect, and ensured narrow linewidth characteristics and high stability.

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Abstract

The invention relates to the technical field of laser, and discloses a high-power yellow-green laser generation method, which comprises the following steps: generating pump light through a first seed source, and generating signal light through a second seed source; after the pump light and the signal light are mixed through the first wavelength division multiplexer, the pump light and the signal light are combined with the light of the first pump source in the beam combiner, and then are subjected to power amplification through the first ytterbium-doped optical fiber to obtain high-power laser; after collimation by the collimator and color separation by the first dichroic mirror, frequency doubling is carried out by the frequency doubling crystal, and finally, high-power yellow-green laser is output by color separation by the second dichroic mirror. The invention discloses an optical fiber laser for generating high-power yellow-green laser, which reduces the number of core devices in an optical path structure, simplifies the optical path structure and control logic, reduces the hardware cost and assembly debugging cost of equipment, and improves the production efficiency. The stimulated Brillouin threshold value of the laser is effectively improved, broadening in the spectrum amplification process is restrained, and meanwhile the stable and good time-domain characteristic can be kept.
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