Optical fiber alkali metal vapor laser

An alkali metal and laser technology, applied in the laser field, can solve the problems of laser output performance deterioration and complex structure, and achieve the effect of light weight, small size, and easy movement.

Inactive Publication Date: 2013-04-24
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the defects of the prior art, the purpose of the present invention is to provide a fiber optic alkali metal vapor laser, which aims to solve the problem that the complex struc

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  • Optical fiber alkali metal vapor laser
  • Optical fiber alkali metal vapor laser
  • Optical fiber alkali metal vapor laser

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] The invention overcomes the disadvantage of poor stability of the resonant cavity of the traditional optically pumped alkali metal vapor laser, and provides a design of the optically pumped hollow-core photonic crystal fiber alkali metal vapor laser. image 3 The structure of the fiber optic alkali metal vapor laser provided by the embodiment of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown. The details are as follows:

[0025] The fiber alkali metal vapor laser comprises a hollow-core photonic ...

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Abstract

The invention discloses an optical fiber alkali metal vapor laser which comprises a hollow-core photonic crystal fiber, a first single mode fiber, a second single mode fiber, a first Bragg grating etched on the first single mode fiber, a second Bragg grating etched on the second single mode fiber and a pump light source connected with the first single mode fiber. The hollow-core photonic crystal fiber is evenly filled with operation materials, pump light emitted by the pump light source acts on the operation materials through first single mode fiber in a coupling mode and generates stimulated seed lasers, the simulated seed lasers are oscillated and gained back and forth in a resonant cavity formed by the first Bragg grating and the second Bragg grating, and continuous lasers are output from the second single mode fiber. The optical fiber alkali metal vapor laser is low in collimation requirement on a light path, the integrated design of the resonant cavity and the operation materials is free from adjustment and maintenance and high in stability, the whole design is small in size, light in weight, good in compactedness, and beneficial for being moved, and the lasers output by a fiber end facer is beneficial for be in coupling with an external light path.

Description

technical field [0001] The invention belongs to the field of laser technology, and more specifically relates to an optical fiber alkali metal vapor laser. Background technique [0002] Optically pumped alkali metal vapor laser is a new type of laser device that has attracted great interest and developed rapidly in recent years. It has the advantages of both solid-state laser and gas laser, and is expected to obtain high-efficiency and high-power near-infrared laser output with high-quality beams. It has broad application prospects in laser cooling, directional energy transfer, material processing, and medical magnetic resonance imaging systems. Compared with other high-power lasers, the optically pumped alkali metal vapor laser also has the advantages of high quantum efficiency, good optical properties of the gain medium (gas), and narrow linewidth. [0003] Such as figure 1 As shown in , it is a schematic diagram of the three energy levels of diode optically pumped alkali...

Claims

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Application Information

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IPC IPC(8): H01S3/227H01S3/08
Inventor 徐权正王新兵左都罗陆培祥
Owner HUAZHONG UNIV OF SCI & TECH
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