ZnSe focusing lenses from Laser Research Optics made for high-powered steel cutting lasers

Laser Research Optics offers ZnSe CO₂ focusing lenses in 1.5- to 2.5-in. ODs with focal lengths from 5 to 10 in. in 0.5-in. increments to match specific steel cutting applications. They are available with standard A/R coatings to provide less than 0.2% total absorption, or with a proprietary Cool-Cut coating that absorbs less than 0.15% of laser energy to protect against heat damage.

Supplied plain or mounted, the lenses are optimized for 10.6 microns and come in plano-convex and meniscus configurations. They are designed for use with steel cutting lasers from 1 to 4 kW.