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Laser shaping system and device for detecting laser shaping system

A laser shaping and laser technology, applied in the field of lasers, can solve problems such as lack of parameter change detection function

Inactive Publication Date: 2017-05-31
ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the traditional SBS-PCM laser system, the detection function of parameter changes is lacking

Method used

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  • Laser shaping system and device for detecting laser shaping system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The invention provides a laser shaping system. see figure 1 , figure 1 It is a structural schematic diagram of an embodiment of the laser shaping system of the present invention. Such as figure 1 As shown, the laser shaping system 100 includes: a pre-stage laser 110, a 1 / 2 wave plate 120, a polarization beam splitter prism 130, a 1 / 4 wave plate 140, a stimulated Brillouin scattering phase conjugate mirror (SBS-PCM) 150, The lens 151 , the first spectroscopic element 160 , the subsequent laser 170 , the first detection component 180 and the second detection component 190 .

[0037] The pre-stage laser 110 is used to emit laser light to be shaped, and the 1 / 2 wave plate 120 is used to receive the laser light and change the polarization state of the laser light. The polarization beam splitter prism 130 is used to transmit most of the laser light output from the 1 / 2 wave plate to the first optical path, and the remaining part is reflected to the second optical path to o...

Embodiment 2

[0047] see figure 2 , figure 2 It is a structural schematic diagram of another embodiment of the laser shaping system of the present invention. Such as figure 2 As shown, the laser shaping system 200 includes: a pre-stage laser 210, a 1 / 2 wave plate 220, a polarization beam splitter prism 230, a 1 / 4 wave plate 240, an SBS-PCM250, a lens 251, a first light splitting element 260, and a post-stage laser 270 , the first detection component and the second detection component.

[0048] This embodiment and figure 1 Differences in the illustrated embodiments include:

[0049] (1) The first detection component includes a second spectroscopic element 281 and a first energy meter 282. The second spectroscopic element 281 is used to transmit part of the laser light emitted from the second optical path (that is, the laser light from the polarization beam splitter prism 230) to the second optical path. An energy meter 282, the remaining light is reflected to the fourth optical path ...

Embodiment 3

[0064] In an embodiment of the present invention, a detection device for a laser shaping system is also provided, including:

[0065] 1 / 2 wave plate, used to change the polarization state of the laser emitted by the front-end laser;

[0066] A polarization beam splitter is used to guide most of the laser light emitted by the 1 / 2 wave plate to the first optical path and the remaining part to the second optical path;

[0067] 1 / 4 wave plate, used to change the polarization state of the laser light emitted from the first optical path, and emit the laser light to the stimulated Brillouin scattering phase conjugate mirror SBS-PCM;

[0068] The first beam-splitting element, the laser reflected by the SBS-PCM back to the 1 / 4 wave plate is guided to the beam-splitting element through the polarization beam-splitting prism, and the beam-splitting element is used to guide most of the laser light to the subsequent laser, and the remaining part is guided to the third light path exit;

[...

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Abstract

An embodiment of the invention provides a laser shaping system and a device for detecting the laser shaping system. The device comprises halved wave plate, a polarization splitting prism, a quartered wave plate, a first beam splitting element, a first detecting component and a second detecting component; the halved wave plate is used for varying polarization state of laser ejected from a pre-stage laser; the polarization splitting prism is used for leading most of the laser ejected from the halved wave plate to the quartered wave plate and leading the rest parts to the first detecting component; the quartered wave plate is used for varying the polarization state of the laser and ejecting the laser to SBS-PCM (simulated Brillouin scattering-phase conjugate mirror); the laser that the SBS-PCM reflected to the quartered wave plate is led to the first beam splitting element via the polarization splitting prism, and the first beam splitting element is used for leading the most part of the laser to a post-stage laser and leading the rest parts to the second detecting component; the first detecting component and the second detecting component are used for detecting parameters of the laser. By the arrangement, parametric variation of the laser before and after shaping by the SBS-PCM can be detected.

Description

technical field [0001] The invention relates to the technical field of lasers, in particular to a laser shaping system and a detection device for the laser shaping system. Background technique [0002] Stimulated Brillouin scattering (SBS, Stimulated Brillouin scattering) technology has broad application prospects in high-power lasers. Stimulated Brillouin scattering phase conjugate mirror (SBS-PCM) technology can not only be used to control laser beam and correct arbitrary wavefront distortion, but also can be used for laser pulse compression. In a double-pass or multi-pass amplifier, SBS-PCM can be used to compensate the dynamic and static wavefront distortion in the laser amplifier and amplifying optical path in real time, thereby improving the output beam quality of high-energy and high-power lasers. At the same time, the research shows that the SBS-PCM laser pulse compression technology is simple and practical, and has the characteristics of high compression rate and e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/09G02B27/28H01S3/00
CPCG02B27/0938G02B27/283G02B27/286H01S3/0014
Inventor 唐熊忻邱基斯樊仲维王昊成刘昊刘悦亮
Owner ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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