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Acousto-optic Q-switched ultraviolet laser

A technology of ultraviolet laser and acousto-optic modulation, which is applied in the field of optics and can solve problems such as the limitation of ultraviolet wavelengths and the inability to meet actual needs.

Pending Publication Date: 2019-09-24
长春新产业光电技术有限公司
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Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide an acousto-optic Q-switched laser, which aims to solve the technical problem that the existing ultraviolet laser output has a relatively large limit on the ultraviolet wavelength and cannot meet the actual needs.

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  • Acousto-optic Q-switched ultraviolet laser

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Embodiment Construction

[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0017] It can be understood that the terms "first", "second" and the like used in the present application may be used to describe various elements herein, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first arm light path could be termed a second arm light path, and, similarly, a second arm light path could be termed a first arm light path, without departing from the scope of the present application.

[0018] figure 1 It shows a schematic structural diagram of an acousto-opti...

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Abstract

The invention is applicable to the field of optics, and provides an acousto-optic Q-switched ultraviolet laser. The laser comprises two support arm optical paths, each of which is provided with a laser pumping source, a focusing assembly, a laser crystal and an acousto-optic Q-switched switch; a beam combiner which is used for combining the light paths of the two supporting arms into one path and outputting sum frequency light through a v-shaped folding cavity, wherein the v-shaped folding cavity comprises a first cavity mirror, a second cavity mirror and a sum frequency crystal used for sum frequency; and an out-of-cavity frequency doubling device which is used for outputting the ultraviolet pulse light and comprises a focusing lens, a frequency doubling crystal and a light splitting piece. The embodiment of the invention provides the acousto-optic Q-switched ultraviolet laser. Two beams of fundamental frequency laser are subjected to Q switching through the acousto-optic Q-switch to output pulse light, and then light paths of two supporting arms are combined through the beam combiner; the sum frequency light is formed through the sum frequency crystal, and the sum frequency light is focused on the frequency doubling crystal; and ultraviolet monochromatic pulse laser with the specified wavelength is outputted through the beam splitter.

Description

technical field [0001] The invention belongs to the field of optics, in particular to an acousto-optic Q-switched ultraviolet laser. Background technique [0002] Ultraviolet lasers are widely used in scientific research, medical treatment, and industrial production. Compared with lasers in the infrared and visible light bands, ultraviolet lasers have higher single-photon energy and smaller optical focus, and are used in a wider range. [0003] Existing ultraviolet laser generators mainly use nonlinear optical crystals such as BBO crystals to convert the frequency of all solid-state third or fourth harmonics to achieve ultraviolet laser output. Therefore, the ultraviolet lasers on the market are generally 355nm wavelength ultraviolet lasers. Or a 266nm wavelength ultraviolet laser, but in practical applications, ultraviolet light of different wavelengths is required to achieve scientific research. The traditional fourth harmonic frequency conversion method is limited, result...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/081H01S3/109H01S3/117H01S3/00
CPCH01S3/0815H01S3/109H01S3/117H01S3/0085
Inventor 李奇郑权王金艳陈曦李世杰任广胜
Owner 长春新产业光电技术有限公司
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