Resonant cavity for pulse and line selection output of airflow hydrogen fluoride laser

A technology of hydrogen fluoride and resonant cavity, which is applied in the field of resonant cavity, can solve the problems that it is difficult to achieve high repetition frequency and stable pulse laser output, and achieve the effects of low power consumption, high repetition frequency, good stability and reliability

Inactive Publication Date: 2015-05-13
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

In these lasers, it is difficult to achieve high repetition rate and stable pulse laser output due to the limitation of pow

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  • Resonant cavity for pulse and line selection output of airflow hydrogen fluoride laser

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[0018] The acousto-optic modulator used in the present invention is the MQS027-7C2B41-S5-HGM-25W acousto-optic modulator produced by the British Gucci company, and the driver model is MQC027-25DC-FPS-15V; the electric rotary turntable is Beijing Zhuoli The RAK-100 rotary table produced by Hanguang Company, the controller model is SC300-3B.

[0019] as attached figure 1 As shown, the structure of a resonant cavity used for the output of gas flow hydrogen fluoride laser pulse line selection includes: a hydrogen fluoride gain medium region 1 for generating stimulated radiation light; a polarizer 2 for converting the radiation generated by the hydrogen fluoride gain medium region 1 The light becomes linearly polarized light; the convex lens 3 and the concave lens 4 are used to shrink the linearly polarized light output by the polarizer 2; the first acousto-optical modulator 5 is used to control whether the linearly polarized light output by the concave lens 4 forms oscillation; T...

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Abstract

The invention relates to a resonant cavity for pulse and line selection output of an airflow hydrogen fluoride laser. The resonant cavity adopts a folded cavity structure. A rotatable first plane reflector, a second acoustic-optic modulator, a first acousto-optic modulator, a concave lens, a convex lens, a polarizer, a second plane reflector, a third plane reflector, a fluoride hydrogen gain medium region, and a plane-concave output mirror are coaxially arranged in sequence along the heading direction of output laser. According to the laser resonant cavity of the invention, line selection output of a laser is realized based on the fact that an acousto-optic medium in the second acoustic-optic modulator diffracts laser of different wavelengths at different angles and through scanning of the rotatable reflector, and pulse output of the laser is realized by using the first acousto-optic modulator to Q-modulate the laser. The resonant cavity has the advantages of low power consumption, good pulse stability and reliability, and the like. High-repetition-frequency and high-peak-power line selection output of an airflow hydrogen fluoride laser can be realized. The resonant cavity can be applied to laser countermeasure, laser detection and other fields.

Description

technical field [0001] The invention belongs to the field of chemical laser devices, and in particular relates to a resonant cavity used for pulse line selection output of gas flow hydrogen fluoride laser. Background technique [0002] Gas flow hydrogen fluoride laser has the characteristics of high power, high efficiency, excellent beam quality, and good engineering scalability. It has very broad and important applications in the fields of laser physics, laser chemistry, material processing, and laser countermeasures. Current gas flow hydrogen fluoride lasers usually operate in continuous wave. If the laser can operate at high repetition rate and high peak power with low average power loss, the application range of this laser will be greatly expanded. At present, the methods to realize the pulsed operation of the repetition rate hydrogen fluoride laser mainly focus on the use of pulsed discharge to induce pulsed laser, intracavity mirror Q-switching and gain modulation to r...

Claims

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Application Information

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IPC IPC(8): H01S3/081H01S3/105H01S3/117
Inventor 王元虎多丽萍金玉奇唐书凯李留成李国富于海军汪健曹靖康元福
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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