High-power semiconductor laser beam composite apparatus

A compound device and laser beam technology, which is applied in the laser field, can solve the problems of increasing cost, damaging the polarization beam combiner, and the relatively high damage energy threshold of the polarization beam combiner, and achieve the effect of reducing volume and weight and reducing cost
CN101464564AInactive Publication Date: 2009-06-24JIAXING DAHE LASER EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIAXING DAHE LASER EQUIP
Publication Date
2009-06-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a multiple-beam composite device in a high-power semiconductor laser system. The device synthesizes light beams with four types of wavelengths sent out by eight groups of semiconductor laser arrays into a beam by adopting a space composite method. The invention belongs to the laser technical field. The device firstly carries out polarization coupling to eight beams of light with four types of wavelengths sent out by a first semiconductor laser array, a second semiconductor laser array, a third semiconductor laser array, a fourth semiconductor laser array, a fifth semiconductor laser array, a sixth semiconductor laser array, a seventh semiconductor laser array and a eight semiconductor laser array by utilizing a polarizing beam combiner to obtain four beams of natural light with four types of wavelengths; then the four beams of light are combined pairwise by utilizing a first wavelength beam combiner and a second wavelength beam combiner; and finally the two beams of beam combining light obtained are combined by a third wavelength beam combiner. The device has the advantages of more reasonable structure, less volume and lower cost.
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Description

technical field

[0001] The invention relates to a multi-beam recombination device in a high-power semiconductor laser system. The device adopts a spatial recombination method to combine beams of four wavelengths emitted by eight groups of semiconductor laser arrays into one beam. It belongs to the field of laser technology. Background technique

[0002] As we all know, high-power semiconductor lasers are widely used in various fields due to their small size, high photoelectric conversion rate and long life. In particular, kilowatt-level high-power semiconductor lasers with high beam quality and high brightness can not only be directly applied to material processing, but also have wide application and great development prospects in pumping solid-state lasers and in military, medical and other fields.

[0003] At present, in order to achieve high-power semiconductor laser output, most of them use relatively simple spatial compounding methods. For example, the German JENOP(S)T...

Claims

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