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Multi-pass laser crystal aperture expansion device and its installation method

A technology of laser crystal and clear aperture, which is applied in the direction of laser components and the structure/shape of the active medium, can solve the problems of not being able to obtain a large enough laser crystal and the limitation of laser crystal growth technology, and achieve easy realization and low energy density Requirements, the effect of reducing the space area

Active Publication Date: 2015-07-29
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • 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 laser crystal aperture expansion device and its installation method
  • Multi-pass laser crystal aperture expansion device and its installation method
  • Multi-pass laser crystal aperture expansion device and its installation method

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Embodiment Construction

[0032] This multi-pass laser crystal aperture expansion method based on splicing technology is extremely flexible, and can be changed according to specific usage conditions. For example, three-pass, four-pass or the same multi-pass amplification method can be used. Or use two or more lasers as pumping sources.

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

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

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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 amplification device, in particular to a multi-pass laser crystal 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 of ultra-intense and ultra-short lasers, various optical amplification methods have been greatly developed. In this system, laser crystals are the core devices. To obtain high-energy and high-intensity laser pulses often requires a laser crystal with a large optical aperture and a strong pump light. 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. In addition, due to the increase in the lateral size of the crystal, the laser parasiti...

Claims

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Application Information

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Patent Type & Authority Patents(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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