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

A technology of pumping lasers and rare earth ions, which is applied in the field of lasers, can solve the problems that a single fiber laser is difficult to achieve output of hundreds of kilowatts, the thermal effect of solid-state lasers is serious, and fuel cannot be recycled. It achieves good heat dissipation effect, large mode volume, Less waste heat generation effect

Active Publication Date: 2012-07-11
NAT UNIV OF DEFENSE TECH
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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

Method used

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

Examples

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Embodiment 1

[0032] Kind of like Figure 1 ~ Figure 4 The laser-pumped flowing nano-particle rare earth ion laser of the present invention is shown, and the laser includes a pump laser 4, a gas working chamber 3 and a resonant cavity.

[0033] The gas chamber 3 of this embodiment is a cuboid of quartz glass coated with an antireflection coating. The gas working chamber 3 is filled with a gain medium 6 that can be excited to a high energy state by the pump light 5 emitted by the pump laser 4. The gain medium 6 is mainly nanoparticles containing rare earth ions; the gain medium 6 of this embodiment is an average particle Yb with 80nm diameter 2 O 3 Powder (the Yb 2 O 3 The powder is provided by Shanghai Institute of Ceramics, with a purity of 99.9%). Nano Yb containing rare earth ions 2 O 3 After the powder is loaded into the gas working chamber 3, the circulation of the nano-rare earth ions, the pumping light 5 and the oscillation output of the laser 7 can be respectively controlled from thre...

Embodiment 2

[0040] Kind of like Figure 4 The laser-pumped flowing nano-particle rare earth ion laser of the present invention is shown, and the gas laser includes a pump laser 4, a coupling mirror system 14, a gas working chamber 3 and a resonant cavity.

[0041] The gas chamber 3 of this embodiment is a cuboid of quartz glass coated with an antireflection coating. The gas working chamber 3 is filled with a gain medium 6 that can be excited to a high energy state by the pump light 5 emitted by the pump laser 4. The gain medium 6 is mainly nanoparticles containing rare earth ions; the gain medium 6 of this embodiment is an average particle Yb with a diameter of 80nm 2 O 3 Powder (the Yb 2 O 3 The nano powder is provided by Shanghai Institute of Ceramics, with a purity of 99.9%). Nano Yb containing rare earth ions 2 O 3 After the powder is loaded into the gas working chamber 3, the circulation of the nano-rare earth ions can be controlled from a pair of working surfaces, which are used for th...

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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, and particularly relates to a high-energy laser using a special gain medium. Background technique [0002] At present, with the widespread 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. The traditional laser includes three parts: gain medium, pump source and resonant cavity. Among them, the pump source provides energy for the gain medium to excite it to a high-energy state, and the resonant cavity 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 are 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 ...

Claims

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Application Information

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IPC IPC(8): H01S3/227B82Y20/00
Inventor 许晓军张汉伟王红岩杨子宁习锋杰
Owner NAT UNIV OF DEFENSE TECH
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