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Dual-beam large-spot collimated irradiation implementation method used in special environment

An implementation method and double beam technology, applied in optics, optical components, instruments, etc., can solve the problems of inability to realize, increase the difficulty of window processing and manufacturing cost, and achieve the effect of reducing the difficulty of design and processing

Active Publication Date: 2014-05-21
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

When the wavelengths of the two beams differ greatly, the sealing window is required to have a high transmittance for both wavelengths, which undoubtedly greatly increases the difficulty of window design and processing and manufacturing costs, and may even be impossible to achieve.

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  • Dual-beam large-spot collimated irradiation implementation method used in special environment

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Embodiment Construction

[0016] The convenient and quick realization of the collimated irradiation based on the double-beam large spot in a special environment is the key point of the present invention. The specific implementation method of the present invention will be further described below in conjunction with the accompanying drawings:

[0017] Such as figure 1 As shown in the schematic diagram of the structure principle of the present invention, the laser beam I is incident into a confined space 9 through the window mirror I, and the collimating mirror 10 receives the incident laser beam at position A and performs beam expansion and collimation, so that the thin laser beam has a large spot The target 7 is irradiated in a collimated way; then, adjust the collimating mirror rotating platform 8, the collimating mirror turns to position B, the laser beam II enters through the window mirror II, and the collimating mirror receives the incident laser beam at position B And perform beam expansion and col...

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Abstract

The invention provides a dual-beam large-spot collimated irradiation implementation method used in a special environment. A collimating mirror and a rotating platform are arranged in the special environment, and the collimating mirror is loaded on the rotating platform; and two laser beams are coupled to the surface of the collimating mirror in different positions and different directions through a telescope-type collimation system secondary mirror or a plurality of planar reflecting mirrors and the telescope-type collimation system secondary mirror, emitted out in a collimated manner as large-size spots through the collimating mirror and sequentially irradiated on a fixed target. The special environment is a closed space different from the atmospheric environment, such as a sealed tank body, an airtight space, a vacuum tight space and the like. The two laser beams penetrate different sealed optical windows of the special environment, and then are coupled to the surface of the collimating mirror. The method provided by the invention is simple, feasible, convenient and fast, the manufacturing cost is low and the technical effect is good.

Description

technical field [0001] The invention relates to a method for controlling a strong laser beam, in particular to a method for realizing collimated irradiation based on a double-beam large spot in a special environment. Background technique [0002] In the study of the irradiation effect of intense laser on the target, sometimes it is necessary to use double beams of different laser wavelengths to sequentially irradiate the same target in a large spot and collimated manner. The general practice is to use two curved mirrors with different calibers to form an off-axis telescopic collimation system, so that the thin beam is modulated by the collimation system to form a large-sized, collimated beam; The irradiation of the laser target is completed at the same position through the beam collimation system. The collimation system used is designed to achieve the size of the outgoing beam, and its primary mirror (referred to as a collimator here) has a large diameter and is expensive. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/20G02B26/08
Inventor 赵国民刘波涛江厚满杨轶张烜喆刘磊康磊
Owner NAT UNIV OF DEFENSE TECH
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