Sapphire Fiber Laser Windows Provide 1/4 Wave Transmitted Wavefront

A line of sapphire cover glass windows for 4 kW and larger industrial cutting lasers that prevent contamination of the fiber lens from debris is available from Laser Research Optics (Providence, RI). Sapphire Fiber Laser Windows feature Moh 9 hardness, which is second only to diamond. They also feature a 10-5 scratch-dig finish and can withstand steel splatter, flash, and debris. Providing 1/4 wave transmitted wave-front, these highly polished sapphire windows are ideally suited for use as debris shields on 1064 nm industrial cutting lasers from 4 kW and above.

Reducing the typical number of lens changes, Sapphire Fiber Laser Windows have A/R coatings on both sides and provide > 99.5 percent transmission at 1.07 microns, with > 90 percent at 650 nm to 670 nm.  Available in 1 in to 2 in sizes, sapphire is harder and more durable than quartz. Sapphire C-Plane windows coated on one or two sides are also offered. Sapphire Fiber Laser Windows are priced according to size and quantity. Price quotations are available upon request.

Laser Research Optics, a Division of Meller Optics, Inc., 120 Corliss Street, Providence, RI 02904, 888-239-5545, Fax: 401-331-4004, [email protected], www.laserresearch.net.