Laser-pumped flowing nano-particle rare-earth ion laser

Abstract

The invention discloses a laser-pumped flowing nano-particle rare-earth ion laser, which comprises a pump laser (4), a gas working chamber (3) and a resonant cavity, wherein a gain medium (6) which can be excited to a high energy state by pump light (5) emitted from the pump laser (4) is filled in the gas working chamber (3), and the gain medium (6) mainly contains rare-earth ion nano-particles. The gas working chamber (3) is communicated to a cycle control device (10) through a connecting pipeline (11). The flowing nano-particle rare-earth ion laser has the advantages of simple structure, less produced heat, fast heat dissipation, large mode volume, little environmental pollution, and the like, and the gain medium can be reused.

Description

technical field [0001] The invention belongs to the technical field of lasers, in particular to a high-energy laser using a special gain medium. Background technique [0002] At present, with the wide application of high-energy lasers in national defense and industry, the exploration of obtaining high-energy laser output has attracted more and more attention from researchers. A traditional laser consists of three parts: a gain medium, a pump source and a resonant cavity. Among them, the pump source provides energy for the gain medium to excite it to a high-energy state, and the resonator provides positive feedback and coupling output to continuously amplify the stimulated radiation and generate laser output. The factors that actually affect the development of lasers to high power include the energy of the pump source and the characteristics of the gain medium. Existing high-energy lasers include chemical lasers and solid-state lasers, and solid-state lasers include traditi...

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Problems solved by technology

[0011] In order to solve the problems of non-recyclable use of chemical laser fuel and bulky volume, and to overcome the serious thermal effect of solid-state lasers, the difficulty of achieving hundreds of kilowatt-level output of a single fiber laser, and in order to avoid the shortcomings that DPAL is very complicated to achieve effective pumping, the present invention A laser-pumped flowing nanoparticle rare earth ion laser with simple structure, less heat generation, fast heat dissipation, large mode volume, less environmental pollution, and reusable gain medium is proposed.

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