A fast-start mid-infrared laser and corresponding polycrystal switching device

A technology for quick start-up and switching devices, applied in the field of lasers, can solve problems such as difficult adjustment, low degree of integration, and large volume of infrared lasers, and achieve the effect of solving complex structures

Active Publication Date: 2022-08-09
CHANGCHUN UNIV OF SCI & TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0006] In order to solve the above problems, the present invention provides a quick-start mid-infrared laser and a corresponding multi-crystal switching device. Through the application of laser technology and single-chip microcomputer technology, the rapid output of 3.8 μm mid-infrared laser can be realized, which breaks through the traditional fast start-up process. Infrared lasers cannot adapt to the technical limitations of rapid laser output in complex environments by quickly switching periodically polarized crystals. It also solves the problems of large volume, difficult adjustment and low integration of current fast-start mid-infrared lasers.

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  • A fast-start mid-infrared laser and corresponding polycrystal switching device
  • A fast-start mid-infrared laser and corresponding polycrystal switching device
  • A fast-start mid-infrared laser and corresponding polycrystal switching device

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Embodiment Construction

[0036] Hereinafter, exemplary embodiments of the embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement them. Also, for the sake of clarity, parts unrelated to describing the exemplary embodiments are omitted from the drawings.

[0037] In embodiments of the present disclosure, it should be understood that terms such as "comprising" or "having" are intended to indicate the presence of features, numbers, steps, acts, components, parts, or combinations thereof disclosed in this specification, and are not intended to be The presence or addition of one or more other features, numbers, steps, acts, components, parts, or combinations thereof is excluded.

[0038] In addition, it should be noted that the embodiments of the present disclosure and the features of the embodiments may be combined with each other under the condition of no conflict. The embodiments of the present d...

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Abstract

The present disclosure discloses a fast-start mid-infrared laser and a corresponding polycrystal switching device. The laser cavity is provided with an 813nm semiconductor laser, an energy transmission fiber, a first focusing mirror, a second focusing mirror, a third A 45-degree beam splitter, a mid-infrared parametric light output mirror, a polycrystal switching device, a mid-infrared parametric light total reflection mirror, and a second 45-degree beam splitter; the laser refracting cavity is placed with a 1084nm fundamental frequency light total reflection Mirror, third 45-degree beam splitter, dispersive prism, photosensitive element and single-chip microcomputer, 1084nm fundamental frequency light total reflection mirror is opposite to the second 45-degree beam splitter; the third 45-degree beam splitter is separated from the first 45-degree beam The positions of the beam mirrors correspond, the dispersive prism corresponds to the position of the third 45-degree beam splitter; the photosensitive element corresponds to the position of the dispersive prism; the single-chip microcomputer is connected with the photosensitive element and the polycrystal switching device.

Description

technical field [0001] The invention relates to the field of lasers, in particular to a fast-start mid-infrared laser and a corresponding polycrystal switching device. Background technique [0002] Mid-infrared lasers (3-5μm) have a wide range of application backgrounds. The laser in the 3-5 μm band is one of the extremely important bands in the atmospheric projection window. The laser in this band is widely used in military and civilian fields such as photoelectric countermeasures, remote sensing detection, spectral analysis, medical diagnosis, etc., and has important research significance. [0003] Mid-infrared optical parametric oscillation technology (OPO) has the advantages of fine and compact structure, wide wavelength tuning range and high output power. Periodically polarized lithium niobate (PPLN) has the advantages of large nonlinear coefficient, wide light transmission range, convenient temperature tuning, and various wavelength tuning methods, so it has gradually...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/108H01S3/13
CPCH01S3/1083H01S3/1305
Inventor 于永吉金光勇王宇恒王超王子健陈薪羽
Owner CHANGCHUN UNIV OF SCI & TECH
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