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Circulating medium pool device for high-load stimulated Brillouin scattering phase conjugation mirror

A technology of stimulated Brillouin and circulating media, applied in nonlinear optics, instruments, optics, etc., can solve the problems of optical breakdown of impurity particles and the effect of phase conjugate mirrors, etc., and achieve low cost, reduced cost, The effect of reducing the impact

Inactive Publication Date: 2011-08-17
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that under the working condition of large energy repetition frequency, heat will be accumulated near the focal area of ​​the phase conjugate mirror medium pool, and the heat will have a serious impact on the working effect of the phase conjugate mirror; and the medium in the The problem of optical breakdown caused by impurity particles, providing a circulating dielectric cell device for high-load stimulated Brillouin scattering phase conjugate mirror

Method used

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  • Circulating medium pool device for high-load stimulated Brillouin scattering phase conjugation mirror
  • Circulating medium pool device for high-load stimulated Brillouin scattering phase conjugation mirror
  • Circulating medium pool device for high-load stimulated Brillouin scattering phase conjugation mirror

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specific Embodiment approach 1

[0007] Specific implementation mode one: combine figure 1 with figure 2 Describe this embodiment, which includes a medium pool 1, a glass vessel 3, a thermal insulation pad 4, a glass bottle 5, a liquid pump 6, a first conduit 7, an inverted U-shaped cover 8, an upper layer of filter paper 9, and a lower layer of filter paper 10 , filter screen 11, bracket 12, U-shaped glass tank 13, air pump 14, second conduit 15, first air valve 16, second air valve 17, third conduit 18, fourth conduit 19 and fifth conduit 20, medium The pool 1 is composed of a thin glass tube 1-1, two thick glass tubes 1-2 and two glass windows 1-3, and the two thick glass tubes 1-2 are symmetrically arranged at both ends of the thin glass tube 1-1, And two thick glass tubes 1-2 and thin glass tube 1-1 are made into one, and the opening end of each thick glass tube 1-2 is provided with glass pane 1-3, and in two thick glass tubes 1-2 A thick glass tube 1-2 is provided with a liquid inlet 1-2-1, and anoth...

specific Embodiment approach 2

[0008] Specific implementation mode two: combination figure 2 The present embodiment will be described. The diameter of the micropores on the upper filter paper 9 of the present embodiment is 8-12 microns. This design can filter large particles of impurities in the liquid medium. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0009] Specific implementation mode three: combination figure 2 The present embodiment will be described. The diameter of the micropores on the lower filter paper 10 of the present embodiment is 1 to 3 microns. This design can further filter impurities in the liquid medium. Other components and connections are the same as those in the first embodiment.

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Abstract

The invention provides a circulating medium pool device for a high-load stimulated Brillouin scattering phase conjugation mirror and relates to a circulating medium pool device; the invention solves the problem that under a high-energy repeat frequency working condition, heat quantity can be accumulated nearby a focal region of the medium pool of the phase conjugation mirror, and the heat quantity has effect on working effect of the phase conjugation mirror, and the impurities in the medium can cause optical breakdown; a beam of laser is focused in the medium pool by a lens, liquid medium with heat quantity in the medium pool flows in a glass bottle and is cooled by a third pipeline, the cooled liquid medium is pumped to a filter pipe through a first pipeline by a liquid pump, and a firstair valve and a second air valve are closed; in addition, an air pump is opened, the air in a U-shaped glass groove is pumped out, two minutes later, the first air valve is opened, the liquid medium in the filter pipe flows in a medium tank through an upper filter paper layer, a lower filter paper layer and a filter screen, and a second air valve is opened, the liquid medium is led in the medium pool by a second pipeline. The circulating medium pool device is used for a high-energy and high-power laser system.

Description

technical field [0001] The invention relates to a circulation medium pool device. Background technique [0002] The stimulated Brillouin scattering (SBS) process is generated in a closed liquid medium pool. For high-energy repetition rate laser pulses, not only will a large heat absorption occur in a high-absorption medium, which will bring obvious Even for a medium with a low absorption rate, high-energy repetition rate laser pulses acting on the medium for a long time will cause considerable heat absorption. The heat absorption not only loses the energy of the incident laser pulse, but also may cause a large temperature gradient, resulting in a change in the refractive index of the liquid medium, thereby reducing the energy reflectivity and stability of the SBS. When the repetition frequency, incident energy, and absorption coefficient reach a certain level, it may also cause stimulated thermal scattering of the medium, thereby competing with SBS and reducing energy refle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/35
Inventor 王雨雷吕志伟武鹏何伟明林殿阳哈斯乌力吉朱成禹
Owner HARBIN INST OF TECH