65-857 10 mm Dia. Fused Silica High Power Laser Line Flat Window; t=3 mm Laser V-Coat 355nm

The 65-857 is a high-performance flat window designed for use with 355nm lasers, available from Edmund Optics. This circular window boasts a 10 mm diameter and a thickness of 3 mm, making it suitable for a wide range of applications.

The window is constructed from UV fused silica, a material with a high damage threshold and excellent transmission properties in the ultraviolet region. This makes it ideal for use in high-power laser systems, where it can help to protect more sensitive optical components.

Both the front and back surfaces of the window are coated with Edmund Optics' Laser V-Coat 355, a specialized coating designed to enhance the window's performance in laser applications. This coating provides high reflectivity at 355nm, reducing the amount of laser energy that is absorbed by the window and thereby minimizing the risk of thermal damage.

The window is shaped as a thin lens, a design that helps to minimize optical aberrations and ensures that the window does not significantly alter the beam profile of the laser. This makes it an excellent choice for applications where beam quality is a critical concern.