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Laser amplifier and laser resonator with a plurality of laser gain media

A laser resonator, laser amplifier technology, applied to the structure/shape of the active medium, lasers, laser components, etc.

Active Publication Date: 2006-06-28
TRUMPF LASER GMBH CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The following problem arises: on crystals with enlarged radiation diameters, the outer extent of the laser radiation field is not amplified, but partially absorbed
The disadvantage is that the position of the amplification / loss aperture is fixedly predetermined by the axial position of the laser crystal

Method used

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  • Laser amplifier and laser resonator with a plurality of laser gain media
  • Laser amplifier and laser resonator with a plurality of laser gain media
  • Laser amplifier and laser resonator with a plurality of laser gain media

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Embodiment Construction

[0032] The laser resonator 1 shown in FIG. 1 includes a first disk-shaped laser crystal 2 and a second disk-shaped laser crystal 3 as the laser active medium in the common laser radiation field 4 between the end face mirror 5 and the output mirror 6 . The two disk-shaped laser crystals 2, 3 have the same structure as its device for pumping and cooling described below.

[0033] The disk-shaped laser crystals 2 , 3 are designed as disks with two flat surfaces. The disk-shaped laser crystals 2, 3 are fixed on the heat sinks 7, 8 through their lower planes. On the upper plane of the surfaces 9, 10, hereinafter referred to as the disc-shaped laser crystals 2, 3, there appear two pump radiation fields 11, 12 shown in dashed lines, which are generated by two pump modules 13, 14, pumping The pump module is part of the pumping device, not shown, for generating pumping radiation. The pump radiation fields 11 , 12 are focused on the surfaces 9 , 10 of the disk-shaped laser crystals 2 ,...

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Abstract

The amplifier has two disk laser crystals (2, 3) in a laser radiation field, where each of the crystals defines a plane that is penetrated by the field. A focusing optical component is disposed in the field between the two crystals. The component has a spherical concave mirror (17) disposed in the field approximately at a distance corresponding to half of curvature radius of the mirror from planes of the crystals. An independent claim is also included for a method of forming a laser amplifier.

Description

technical field [0001] The invention relates to a solid-state laser amplifier and a solid-state laser resonator with at least two laser-active media in a common laser radiation field, wherein the laser-active media do not form a hard aperture for the laser radiation field. Background technique [0002] A laser resonator of the aforementioned type is described in DE 198 35 108 A1, in which a plurality of disk-shaped laser crystals are arranged in a common resonator. The laser radiation field realizes the laser crystal. The resonant cavity includes two end mirrors and a deflection mirror (plane mirror) arranged between the disc-shaped laser crystals to construct the laser radiation field. [0003] When laying out resonators for high-power solid-state lasers, the goal is to achieve high stability and constant radiation characteristics of the resonators under varying operating parameters. Compared with conventional high-power rod lasers (Stablaser), in high-power disk lasers, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/07H01S3/081
CPCH01S3/005H01S3/042H01S3/0604H01S3/07H01S3/0804H01S3/08072H01S3/0816H01S3/091H01S3/094084H01S3/09415H01S3/1618H01S3/1643
Inventor 克里斯蒂·施米兹安德莱斯·沃斯
Owner TRUMPF LASER GMBH CO KG
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