Protective Windows for High Energy Lasers   Protective windows are the front part of every laser-cutting and welding system and these are crucial for ensuring reliable and uninterrupted operation of laser systems. Protective windows for high-energy lasers are designed to be used as a safeguard for the more expensive optics inside the laser cutting head. They are placed as the last optics before the work piece. PWT continues to accumulate experience, combined with good substrate and high quality coating process, so that our protection window can withstand tens of thousands of watts of power is not polluted.   Specification: Wave length range： Dimension range： Surface quality： Flatness quality： Residual reflectance： LITD： 190–3000 nm 5–100mm 10-5 <λ/8 @ 632.8 nm < 0.2% >33 J/cm² @ 1064 nm, 5.4 ns, 10 Hz   主要作用： 阻挡激光加工时杂物飞溅到聚焦镜，以避免飞溅物打坏昂贵的聚焦镜头， 最终，一旦碎片开始破坏电介质涂层，就必须更换这些消耗性窗口。 应用范围： 激光焊接机、激光切割机、光纤激光切割机、激光打标机