Novel laser amplifier

A laser amplifier, a new type of technology, used in lasers, laser parts, phonon exciters, etc., to achieve the effects of improving output power, reducing thermally induced refractive index gradient, and making production simple

Inactive Publication Date: 2015-04-08
ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention aims to overcome the defects of the existing laser amplifier technology, easily meet the preci

Method used

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Embodiment 1

[0027] Such as figure 1 As shown, the novel laser amplifier of Embodiment 1 of the present invention includes: an optical prism 2 , a laser working substance 1 and an optical prism 3 arranged along the optical path.

[0028] Wherein, the laser working substance 1 is a tube-shaped rod-shaped crystal, the two ends of the tube-shaped rod-shaped crystal are chamfered inwardly, and the cross-section of the tube-shaped rod-shaped crystal is trapezoidal; each surface of the laser working substance 1 is precisely polished; Optical prism 2 and optical prism 3 are the same.

[0029] The optical prism 2 and the optical prism 3 are the same, and the optical prism 2 and the optical prism 3 are in the shape of a cylinder after excising a vertebral body.

[0030] The laser working substance 1, the optical prism 2 and the optical prism 3 have conical surfaces, which are respectively conical surfaces 4, 5, 6, and 7. The conical surfaces 4, 5, 6, and 7 are used to adjust the laser direction, a...

Embodiment 2

[0036] Such as figure 2 As shown, the novel laser amplifier of Embodiment 2 of the present invention includes: an optical prism 2 , a laser working substance 1 and an optical prism 3 arranged along the optical path.

[0037] Wherein, the laser working substance 1 is a tube-shaped rod-shaped crystal, the two ends of the tube-shaped rod-shaped crystal are chamfered outward, and the cross-section of the tube-shaped rod-shaped crystal is trapezoidal; each surface of the laser working substance 1 is precisely polished; Optical prism 2 and optical prism 3 are the same.

[0038] The optical prism 2 and the optical prism 3 are the same, and the optical prism 2 and the optical prism 3 are cones.

[0039] The laser working substance 1, the optical prism 2 and the optical prism 3 have conical surfaces, which are respectively conical surfaces 4, 5, 6, and 7. The conical surfaces 4, 5, 6, and 7 are used to adjust the laser direction, and can be coated The anti-reflection coating layer c...

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Abstract

The invention relates to the technical field of all-solid state laser, and particularly relates to a novel laser amplifier. The novel laser amplifier disclosed by the invention comprises an optical prism 2, a laser material 1 and an optical prism 3, which are arranged along a light path, wherein the laser material 1 is tubular rod crystal; chamfering angles are inwards or outwards processed at two ends of the tubular rod crystal; the section of the tubular rod crystal is trapezoid; each surface of the laser material 1 is accurately polished; the optical prism 2 and the optical prism 3 are the same. Compared with a traditional rod working material, the internal thermal index gradient is effectively reduced, so that the thermal index gradient is greatly reduced; a light beam is subjected to optical length differences decrease when penetrates through different positions, so that wavefront distortion generated by the light beam can be effectively weakened; the novel laser amplifier is simple to fabricate, and low in cost; the accuracy requirements on the processing technology are easily met.

Description

technical field [0001] The invention relates to the technical field of all solid-state lasers, in particular to a novel laser amplifier. Background technique [0002] High average power and high beam quality lasers are widely used in industry, medical treatment, national defense, scientific research and other fields. However, in all solid-state laser systems, part of the pumping light absorbed by the laser medium is converted into heat energy and deposited inside the medium; at the same time, the laser medium is cooled by the outside, which makes the inside of the laser medium form a non-uniform temperature field distribution. The inhomogeneity of the medium leads to the formation of thermal strain and thermal stress distribution in the medium, and the change of the refractive index of the medium caused by thermal stress will cause the thermally induced birefringence effect. [0003] In many laser systems, the polarization state of the laser is required to be linearly polar...

Claims

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Application Information

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IPC IPC(8): H01S3/16H01S3/042
Inventor 樊仲维肖红赵天卓黄科
Owner ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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