UV-d Model yellow quartz tube ,whose surface is yellow and cut surface deep yellow, can filter all the UV-rays of invisible light. It is the important material for making optically Pump which is the main part of Laser generators. When using this material, it can prevent work material’s color center and Optical distortion. It also can reduce corrosion to the Silver reflector.For Substantial increasing in the occurrence of laser efficiency, it has the irreplaceable role.