Beam shaping structure based on multiple stacks

A technology of beam shaping and beam, applied in optics, optical components, devices for controlling laser output parameters, etc., can solve the problems of inconvenient adjustment, troublesome assembly operation, complex structure, etc., and achieve compact structure, low cost, and simple design Effect
CN110535029AInactive Publication Date: 2019-12-03INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
Publication Date
2019-12-03
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention provides a beam shaping structure based on multiple stacks. The structure comprises a number of horizontally-spaced multi-stack structures. Each multi-stack structure comprises at leastn semiconductor laser stacks which are displaced in the vertical direction, wherein n is greater than and equal to 2. Each semiconductor laser stack comprises a number of laser bars arranged along theslow axis direction. The structure further comprises a self-polarizing beam combining prism which is arranged on the output optical path of each multi-stack structure and used to carry out polarizingand beam combining on beams output by the semiconductor laser stacks to acquire a primary output beam. The spot width of the primary output beam in the slow axis direction is reduced to half of the width of the output beams of the semiconductor laser stacks. The structure further comprises a shaping lens group which achieves beam rearrangement in the fast axis direction. According to the beam shaping structure, the mass of beams in the slow axis direction is reduced as much as half, and the mass of beams in the fast axis direction is unchanged. Compared with traditional methods, the beam shaping structure has the advantages of simple design, compact structure, convenient adjustment and low cost.
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Claims

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