Apparatus and method for obtaining a micro-sized pulsed laser beam

Through the design of a resonant cavity with a micro-sized mirror structure and a built-in small aperture, combined with a high-gain module and Q-switching components, the problem of traditional all-solid-state lasers being difficult to achieve stable output and high power of micro-sized beams is solved, and the flexible output of high-quality micro-sized laser beams is achieved.

CN119834041BActive Publication Date: 2025-10-17CHONGQING UNIV OF POSTS & TELECOMM
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Patent Information

Application Number
CN202510020952.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-07
Publication Date
2025-10-17
Estimated Expiration
2045-01-07

AI Technical Summary

Technical Problem

Traditional all-solid-state lasers have difficulty achieving stable output of micro-sized beams, and it is difficult to balance output power and mode stability. In addition, existing solutions are unable to meet the needs of miniaturized, high-power, and high-quality lasers.

Method used

The resonant cavity design adopts a micro-sized cavity mirror structure and a built-in micro-sized small aperture, combined with a high-gain module and Q-switching components, and achieves stable output and high-quality micro-sized laser beams by precisely adjusting the lens angle and optical path configuration.

Benefits of technology

It realizes the flexible output of micro-sized laser beams, improves the quality and power of laser beams, simplifies the device structure, and meets the needs of various application scenarios.

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Abstract

The application relates to a device and a method for obtaining a micro-size pulse laser beam, and belongs to the technical field of lasers. Challenges faced by traditional all-solid-state lasers in realizing micro-size beams and high-efficiency output power are solved. The device adopts a micro-size cavity mirror structure, adjusts the cavity mirror size and the resonant cavity configuration, realizes flexible output of different radius micro-size laser beams, simultaneously uses self-generated radiation amplification light generated by a high-gain module, and ingeniously adds a micro-size small-aperture diaphragm in the resonant cavity, realizes accurate coincidence of the self-generated radiation light path and the resonant cavity starting light path, optimizes the light path configuration and effectively promotes the resonant cavity starting, and thus high-quality micro-size laser beams are output. Different from a scheme of relying on a small-aperture diaphragm outside the cavity to block light, the application realizes breakthrough in miniaturization of laser beams through close cooperation of the built-in micro-size small-aperture diaphragm and the micro cavity mirror, and the device structure is simpler and more efficient.
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