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Laser Research Optics’ debris shields for lasers

Laser Research Optics introduced a new line of sapphire cover glass windows that reduce focus shift and are for use as debris shields on 1064-nm cutting and welding lasers. They have lower bulk absorption with about 30 times higher thermal conductivity than fused silica protection glasses. The A/R coatings on both sides provide transmission of greater than 99.5 percent at 1.06 microns with greater than 80 percent at 650 nm to 670 nm. The shields can withstand steel splatter, flash and debris better than fused silica.