Line selection ring cavity for chemical laser device

A chemical laser, ring cavity technology, applied in lasers, laser parts, phonon exciters, etc., can solve the problems of high threshold, poor beam quality, high noise, etc., achieve low threshold, reduce optical loss, beam quality Good results

Active Publication Date: 2014-09-24
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, most of the current line-selecting lasers use a standing wave cavity structure, which has high noise, high threshold, and poor beam quality.

Method used

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  • Line selection ring cavity for chemical laser device
  • Line selection ring cavity for chemical laser device

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Embodiment Construction

[0032] as attached figure 1 As shown, the structure of the line-selecting four-mirror rectangular cavity used in the chemical laser device of the present invention includes: a gain medium region 601, a Brewster plate I 701, a blazed grating 101, two plane mirrors 201, 202, and a plano-concave mirror 401, Brewster sheet II 501, plane mirror III 801.

[0033] The blazed grating 101 is placed on a motorized turntable, and its diffraction angle is adjusted to the diffraction angle corresponding to the line selection wavelength. When the laser is working, the activated medium in the gain medium region 601 produced by the chemical reaction produces stimulated radiation light of different wavelengths, and these radiation lights pass through the Brewster plate I701 and become linearly polarized light whose vibration direction is parallel to the incident plane. When these linearly polarized lights are incident on the blazed grating 101, the radiated light satisfying the first-order d...

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Abstract

The invention relates to a line selection ring cavity for a chemical laser device. The device is in a stable ring cavity structure and is sequentially provided with a blazed grating, a plane mirror, a plane mirror, a plano-concave reflector, a Brewster piece, an activating medium area and a Brewster piece, and a zero level zero level output of the blazed grating is provided with the plane mirrors. According to the laser device provided by the invention, the line selection output of the chemical laser device can be realized by using the zero level, primary diffraction vibration and zero diffraction output. A resonant cavity of the laser device is in either a four-mirror rectangular travelling-wave cavity or a four-mirror '8'-shaped annular travelling-wave cavity, therefore, the laser device can more effectively extract active particles in a gain medium area and the output power of the line selection laser can be improved; furthermore, the line selection ring cavity has the characteristics of compact structure, high power, good beam quality, high stability and the like, thereby being extensively applied to the fields of laser physics, laser chemistry, materials processing and the like.

Description

technical field [0001] The invention belongs to the field of chemical laser devices, and in particular relates to a line selection ring resonant cavity used for chemical laser devices. Background technique [0002] Since the advent of chemical lasers, they have developed rapidly due to their wide application prospects. Chemical lasers have many significant advantages, such as high energy conversion efficiency and output power, and good scalability. They usually work in the mid-infrared band with good atmospheric transmission and rich laser spectral lines. They are the lasers with the highest output power applied so far. Mid-infrared chemical lasers usually operate with multiple lines because the gain coefficients of each spectral line are relatively close. If a certain transition line needs to be selected, a dispersive element needs to be placed in the cavity to suppress the transition of other lines. Because of its good directional diffraction ability, the blazed grating i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/083
Inventor 王元虎多丽萍唐书凯于海军汪健曹靖康元福金玉奇
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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