Spatial superposition coupling high power diode laser stack system

A space coupling, semiconductor technology, applied in the laser field, can solve problems such as complex process, achieve the effect of simple and compact structure, easy installation and debugging, and improve service life
CN103579905BInactive Publication Date: 2016-02-10NORTHWEST UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHWEST UNIV
Publication Date
2016-02-10
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a system for spatially stacking high-power semiconductor laser stacks, comprising a first semiconductor laser stack and a second semiconductor laser stack, both of which are composed of a plurality of semiconductor laser stacks Bars are superimposed along the fast axis direction, and the two stacks contain the same number of bars; they also include the first fast axis collimating lens group, the second fast axis collimating lens group, and the first slow axis collimating lens array Array group, second slow-axis collimating lens array group, periodic space coupling mirror, slow-axis beam expander system, and focusing mirror; the two-way laser stack in this system is spatially superimposed through the periodic space coupling mirror to output high Power laser, beam collimation is realized by fast axis collimating lens and slow axis collimating lens array, which maintains high brightness and linear polarization characteristics, and at the same time, a feedback optical isolation system is added to protect internal components. It effectively solves the complexity problem of the existing semiconductor laser process and outputs a high-power strip-shaped uniform light spot.
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Description

technical field

[0001] The invention belongs to the technical field of lasers, and in particular relates to a spatially superimposed and coupled high-power semiconductor laser array system. Background technique

[0002] Due to high brightness, high power density, small heat action area, short material processing time, fast processing speed, non-contact processing, no "tool" wear, no "cutting force" acting on the workpiece, the laser can be used for various metals and non-metals. Processing, especially materials with high hardness, high brittleness and high melting point and CNC system to form a laser processing center, the heat-affected zone is small, the deformation of the workpiece is small, the follow-up processing is small, the production efficiency is high, and the processing quality is stable and reliable, which solves the problems that many conventional methods cannot The problems solved have greatly improved work efficiency and processing quality. At present, the man...

Claims

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