Importance

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Abstract

An apparatus that efficiently and accurately splits a laser beam input into eight or more outputs where the beam energies of the output beams are within ten and preferably within five percent of each other. The apparatus includes an arrangement of at least seven beam splitters each of which can split an incident laser beam into two exit beams of equal energy at a particular incident angle. At least some of the splitters have different particular incident angles but the particular incident angle of the first splitter is used as the incident angle for all splitters. The exit beams of the first splitter are directed to second and third splitters that have particular incident angles relatively close to the particular incident angle of the first splitter when compared with the relationship of the particular incident angle of the first splitter to the particular incident angles of the remaining splitters.

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First Claim