Optical element for homogenizing quality of semi-conductor laser array light beams and system
A laser array and optical element technology, applied in the field of optical elements and optical systems, can solve the problems of inaccurate positioning, large cumulative error, and difficult to adjust, and achieve the effect of accurate positioning, no cumulative error, and easy adjustment.
Active Publication Date: 2012-01-11
SHANXI FEIHONG LASER TECH +1
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Problems solved by technology
[0009] The purpose of the present invention is to provide an optical element and an optical system for homogenizing the beam quality of a semiconductor laser array to overcome the above-mentioned shortcomings of inaccurate positioning, difficult assembly, large cumulative error, and difficult adjustment
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[0033] Embodiments of an optical element and an optical system for homogenizing the beam quality of a semiconductor laser array according to the present invention will be described below with reference to the accompanying drawings. Those skilled in the art would recognize that the described embodiments can be modified in various ways or combinations thereof without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Also, in this specification, the drawings are not drawn to scale, and like reference numerals denote like parts.
[0034] image 3 is a perspective view showing an optical element for beam splitting of a semiconductor laser array according to an embodiment of the present invention, Figure 4 is a plan view showing image 3 Projection of the optical element in , along the lamination direction of the transparent optical material layer. Such as...
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The invention provides an integral formed optical element for homogenizing the quality of semi-conductor laser array light beams, and a system which comprises the optical element and is used for homogenizing semi-conductor laser array light beams which are densely lined in one dimension and two dimensions or are not densely lined in two dimensions. The optical element comprises a plurality of transparent optical material layers with equal thickness which are stacked integrally; each layer is a flat cuboid, wherein a pair of parallel side surfaces respectively serve as an incident end surface and an outgoing end surface of each semi-conductor laser array light beam, the other pair of parallel side surfaces are in parallel with the incident direction of the light beams, a parallelogram bottom surface is partially coincident with the bottom surface of an adjacent layer; and that light incident end surfaces in all the layers which are sequentially lined along the stacking direction are gradually increased or reduced relative to angles which are formed by side surfaces which are in parallel with the incident direction of the light beams, and the vertical distances between incident end surfaces and emission end surfaces in all the layers or the distances along the incident direction of the light beams are same.
Description
technical field [0001] The invention relates to an optical element and an optical system, in particular to an optical element and an optical system for homogenizing the beam quality of a semiconductor laser array. Background technique [0002] Semiconductor lasers have been widely used due to their high electro-optical conversion efficiency, small size and light weight. However, a single semiconductor laser cannot output extremely high power (greater than 100 watts), so there are laser arrays in which multiple semiconductor lasers are arranged together to form a bar array, and multiple bar arrays are stacked together to form a planar array. Restricted by technology, cooling, shaping methods, etc., the semiconductor laser array cannot be made very long, and it is generally about 10mm at present. The semiconductor lasers that make up the semiconductor laser array are generally edge-emitting semiconductor lasers. This semiconductor laser includes a p-n junction, the current is...
Claims
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Inventor 王智勇曹银花刘友强许并社史元魁陈玉士王有顺
Owner SHANXI FEIHONG LASER TECH