PW1-2506M-C 25 mm Dia. N-BK7 Laser Grade Optical Window; t=6mm Uncoated

The PW1-2506M-C is a 25 mm diameter, 6 mm thick optical window made of N-BK7 glass, a popular material in the laser optics industry due to its excellent optical properties and high damage threshold. This uncoated window is sourced from CVI Laser Optics, a reputable vendor known for their high-quality optical components.

The window is designed in a flat configuration, which is ideal for applications that require minimal optical power loss and distortion. Its circular base shape, with a diameter of 25 mm, is universally compatible with various optical systems. The window's thickness, 6 mm, provides sufficient structural integrity while maintaining a low weight.

This optical window is intended for use at a wavelength of 633 nm, making it suitable for a wide range of applications, including laser systems, interferometry, and optical metrology. The window's shape is that of a thin lens, indicating its potential use in focusing or collimating light beams, although its primary function is to provide protection for the optical system while minimally affecting the beam path.

The window is uncoated, meaning it does not have any anti-reflective or other surface treatments. This can be advantageous in applications where such coatings are not required or may interfere with the system's operation. However, it's important to note that uncoated windows can reflect up to 4% of incident light, which may need to be considered in high-precision applications.