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Tunable slab laser

A slab laser and optical path technology, applied in the field of lasers, to achieve the effect of reasonable geometric size, high power output, and easy realization

Active Publication Date: 2014-09-24
成都精密光学工程研究中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a tunable slab laser, aiming at solving the problem of improving the output power of the miniaturized tunable slab laser

Method used

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Embodiment 1

[0031] A tunable slab laser includes a vacuum cavity. The vacuum cavity is an all-metal structure. In this embodiment, the material is aluminum, which has good heat dissipation and light weight, and heat treatment is performed during processing to reduce deformation. The radio frequency power supply is connected to the upper and lower walls of the inner wall of the vacuum cavity through a transmission line to form a waveguide cavity. A light path folding system is arranged laterally in the vacuum chamber, which includes a reflective blazed grating, a total reflection concave mirror, a total reflection convex mirror and a partial reflection output mirror. The reflective blazed grating and a total reflection convex mirror are installed on the inner surface of the vacuum cavity The total reflection concave mirror and the partial reflection output mirror are installed on the side wall opposite to the reflection blazed grating or the total reflection convex mirror on the inner surfac...

Embodiment 2

[0035] On the basis of the first embodiment, the focal point O of the total reflection concave mirror and the total reflection convex mirror coincide (confocal), and the distance L2 between the confocal O and the total reflection convex mirror is half of the radius of curvature R2 of the total reflection convex mirror , The distance L1 between the confocal O and the total reflection concave mirror is half of the curvature radius R1 of the total reflection convex mirror, the specific design is as figure 2 Shown. With such a design, each folded optical path of the oscillating beam can be made as close as possible to achieve the purpose of making full use of the gain working medium and improving the laser efficiency. After the oscillating light is frequency-selected by the reflective blazed grating, the outgoing light is parallel light, and the incident light that enters the partially reflecting output mirror after being reflected by the total reflection convex mirror for the last...

Embodiment 3

[0037] On the basis of the first or second embodiment, two upper and lower electrodes are arranged longitudinally in the vacuum chamber. The electrodes can be made of aluminum or copper. In this embodiment, the electrode material is copper, and the upper electrode is close to the inside of the vacuum chamber. On the top surface, the lower electrode is close to the inner bottom surface of the vacuum chamber, and the distance between the upper and lower electrodes is 1~3mm. The two electrodes are connected to the RF power supply through a transmission line and form a gain interval between the electrodes.

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Abstract

The invention discloses a tunable slab laser, and belongs to the technical field of lasers. The tunable slab laser aims at improving the output power of a small tunable slab laser. According to the technical scheme, the tunable slab laser comprises a vacuum cavity. A laser path folding system is transversely arranged in the vacuum cavity and comprises a reflection-type blazed grating, a total-reflection concave mirror, a total-reflection convex mirror and a partial-reflection output mirror. After frequency selecting is carried out on oscillation lasers through the blazed grating, the oscillation lasers sequentially pass through the total-reflection concave mirror and the total-reflection convex mirror and are reflected by the total-reflection concave mirror and the total-reflection convex mirror, and finally the reflected lasers are output through the partial-reflection output mirror. The structure is mainly used for the laser, the quality of output laser beams of the laser can be guaranteed, the power density on the grating face can be reduced, and larger power output can be achieved.

Description

Technical field [0001] The invention relates to a tunable slab laser, in particular to a tunable slab laser capable of realizing higher power output, and belongs to the technical field of lasers. Background technique [0002] Tunable lasers are generally divided into two categories: a medium-based broadband emission spectrum combined with frequency selection technology to achieve continuous tuning of the laser oscillation wavelength, dye lasers, tunable excimer lasers, high-pressure gas lasers, solid transition metal ion lasers, color Heart lasers, tunable semiconductor lasers, free electron lasers, etc. belong to this category; the other is the optical parameter process of a certain fixed wavelength laser or tunable laser through nonlinear optics to obtain a continuously adjustable optical parameter. Laser technology, such as optical parametric oscillation technology, optical parametric amplification technology, tunable frequency doubling, sum frequency, difference frequency and...

Claims

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Application Information

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IPC IPC(8): H01S3/081H01S3/042
Inventor 王度周逊李赜宇罗振飞孔维鹏李光彬邹明芮
Owner 成都精密光学工程研究中心
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