Electro-optical-mechanical composite pulse laser beam combination device and method thereof

A pulsed laser and mechanical technology, applied in lasers, laser parts, circuits, etc., can solve problems such as limited response speed, achieve fast scanning speed, increase repetition frequency and average power, and large deflection.

Inactive Publication Date: 2016-01-06
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mechanical deflectors can achieve a large amount of deflection, but the response speed is limited

Method used

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  • Electro-optical-mechanical composite pulse laser beam combination device and method thereof
  • Electro-optical-mechanical composite pulse laser beam combination device and method thereof
  • Electro-optical-mechanical composite pulse laser beam combination device and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like figure 1 As shown, an electro-optic-mechanical composite pulsed laser beam combining device includes: an electro-optic deflector 1, a mechanical deflector 2, 2 driving circuits, 4 lasers, a synchronizing machine 5 and a laser collimating element 6, and a driving circuit 31 Cooperate with electro-optical deflector 1, drive circuit 32 cooperate with mechanical deflector 2, drive circuit 31, drive circuit 32 and all lasers are connected with synchronizer 5, and the output ports of the four lasers are opposite to electro-optical deflector 1 , the electro-optical deflector 1, the mechanical deflector 2 and the laser collimation element 6 are arranged in sequence along the transmission direction of the pulsed laser. The pulsed laser output from the laser can be a repetitive pulse or a single pulse, and can have different pulse shapes, pulse widths, wavelengths, spectral widths, chirp characteristics, amplitudes and other characteristics.

[0038] The electro-optical def...

Embodiment 2

[0047] like figure 2 As shown, the same part as in Embodiment 1 will not be described in detail. The difference is that the electro-optic deflector 1 is a digitally coded electro-optic deflector, including an electro-optic crystal 12 and a birefringent crystal 11. and e light, that is, the pulse laser 410 output by the laser 41 is o light, and the pulse laser 420 output by the laser 42 is e light. After entering the birefringent crystal 11 from different positions, they can be combined into a beam of pulse laser. When one path of pulsed laser light passes through the electro-optic crystal 12, a half-wave voltage is applied to the electro-optic crystal 12 to change the polarization direction of the o-light or e-light (that is, to become all o-light or all e-light), and obtain the same electric polarization direction Photosynthetic beam laser laser 510 . In this embodiment, only the pulsed laser 410 and the pulsed laser 420 are used as an example for illustration, and the beam...

Embodiment 3

[0049] like image 3 As shown, the same part as in Embodiment 1 will not be described in detail. The difference is that the electro-optic deflector 1 is a prism electro-optic deflector, including an electro-optic crystal prism 13, and the electrode plates of the driving circuit 31 and the electro-optic crystal prism 13 are parallel to each other. The upper and lower bottom surfaces of the electro-optic crystal prism 13 are not limited to triangular prisms. Any prism with two parallel bottom surfaces and two non-parallel side surfaces can be used. The two non-parallel side surfaces are the incident surface and the outgoing surface. The electro-optic crystal prism 13 is a triangular prism, and the cross section of the triangular prism is an isosceles triangle. The pulsed laser light 410 output by the laser device 41 and the pulsed laser light 420 output by the laser device 42 are all incident on the side where a waist of the triangular prism is located. After passing through the ...

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PUM

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Abstract

The invention discloses an electro-optical-mechanical composite pulse laser beam combination device and a method thereof. The electro-optical-mechanical composite pulse laser beam combination device comprises an electro-optical deflector, a mechanical deflector, two drive circuits, at least 3 lasers and a synchronous machine, wherein one drive circuit is matched with the electro-optical deflector; the other drive circuit is matched with the mechanical deflector; the two drive circuit and all lasers are respectively connected with the synchronous machine; the electro-optical deflector, the mechanical deflector and a laser aligning member are successively arranged in the transmission direction of a pulse laser; and the pulse laser output by the laser is emitted out from the same position of the mechanical deflector, and transmission directions are identical. Light deflection generated by the mechanical deflector and the electro-optical deflector is utilized, and the light deflection characteristic is combined with the characteristic of the pulse laser as well as the synchronous machine, so that beam combination of multi-path pulse lasers is realized by the one-stage beam combination device.

Description

technical field [0001] The invention relates to the field of high-power lasers, in particular to an electro-optic-mechanical composite pulse laser beam combining device and a method thereof. Background technique [0002] With the continuous development and maturity of laser technology, high-power lasers have become more and more widely used, which has profoundly affected the development of many industries. According to the working mode, high-power lasers are mainly divided into high-peak power lasers (ie high-energy pulsed lasers) and high-average power lasers. [0003] For high-energy pulsed lasers, a certain repetition frequency of the laser is required in various application fields. However, directly increasing the repetition frequency of the high-energy pulsed laser will produce serious thermal effects, which will affect the performance of the laser, and even cause the laser output pulse energy to drop or fail to work. For high average power lasers, application require...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/107
Inventor 张永亮邓颖王方康民强薛海涛罗韵郑建刚王少奇张锐严雄伟蒋新颖龙蛟李明中田小程叶海仙王德恩周丽丹胡东霞郑奎兴粟敬钦朱启华魏晓峰郑万国
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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