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Multi-pass enlarging device for clear aperture of laser crystal and installation method thereof

A technology of laser crystal and clear aperture, applied in laser parts, structure/shape of active medium, etc., can solve the problems of laser crystal growth technology limitation, inability to obtain large enough laser crystal, etc., to achieve easy realization and reduce energy density requirements, the effect of reducing the space area

Active Publication Date: 2013-08-21
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, large-sized laser crystals and high-energy-density pump light will bring some problems at the same time, including the limitation of laser crystal growth technology, and the inability to obtain large enough laser crystals

Method used

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  • Multi-pass enlarging device for clear aperture of laser crystal and installation method thereof
  • Multi-pass enlarging device for clear aperture of laser crystal and installation method thereof
  • Multi-pass enlarging device for clear aperture of laser crystal and installation method thereof

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Embodiment Construction

[0032] This multi-pass laser crystal aperture enlargement method based on splicing technology has extremely high flexibility, and can be changed according to specific use conditions, such as three-pass, four-pass or the same multi-pass enlargement method. Or use two or more lasers as the pump source.

[0033] See Figure 8 , A multi-pass laser crystal light aperture enlargement device, characterized in that the device includes a laser crystal 6, a fixing frame 1, and bolts 2 and 3, and the positional relationship of the above components is as follows:

[0034] The fixing frame 1 includes two identical clamps, which have a cylindrical structure with a right angle inside and an outer circle. The bodies of the two clamps are provided with two screw holes 4 and screw holes perpendicular to the joint surface of the two clamps. 5. The two bolts 2 and the bolt 3 pass through the screw holes 4 and 5 to form an outer cylinder with a square elongated hole inside. The square elongated hole is...

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Abstract

The invention discloses a multi-pass enlarging device for a clear aperture of a laser crystal and an installation method of the multi-pass enlarging device. The device comprises the laser crystal, a fixing frame, a first bolt and a second bolt. The position relation among the components is as follows: the fixing frame comprises two same clamps, and the clamps are of a cylinder structure, wherein the interiors of the clamps are right-angled, and the exteriors of the clamps are round; a first bolt hole and a second bolt hole are formed in the clamps and perpendicular to the joint surface of the two clamps, and the two bolts penetrate through the first bolt hole and the second bolt hole and then an outer cylinder with a square slot hole is formed; the square slot hole and the outer cylinder are concentric, and the spliced laser crystal is placed in a square inner hole of the fixing frame and locked through the first bolt and the second bolt. According to the multi-pass enlarging device, the clear aperture of the laser crystal is effectively enlarged, and meanwhile, parasitic oscillation and a heating effect are reduced. The multi-pass enlarging device for the clear aperture of the laser crystal has the advantages of being easy to adjust, convenient to install, stable in structure and low in cost.

Description

Technical field [0001] The invention relates to a laser amplifying device, in particular to a multi-pass laser crystal clear aperture expansion device and an installation method thereof. Background technique [0002] In recent years, with the continuous in-depth development of strong field science and the continuous improvement of the energy and intensity requirements for ultra-strong and ultra-short lasers, various optical amplification methods have been developed by leaps and bounds. In this system, laser crystals are the core components. To obtain high-energy and high-intensity laser pulses, laser crystals with large apertures and stronger pump light are often required. However, large-sized laser crystals and high-energy-density pump light will cause some problems at the same time, including the limitation of laser crystal growth technology, which makes it impossible to obtain a sufficiently large laser crystal. In addition, due to the increase in the lateral size of the crys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/06H01S3/07H01S3/02
Inventor 刘彦祺冷雨欣印定军陆效明许毅陆海鹤梁晓燕李儒新徐至展
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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