WQK2501-AI1 25 mm Dia. N-BK7 Precision Round Window; t=4mm AR 630-1100nm

The WQK2501-AI1 is a 25 mm diameter N-BK7 precision round window with a thickness of 4mm, designed for use in the spectral range of 630-1100nm. This window is sourced from Knight Optical, a reputable vendor known for their high-quality optical components.

The window is made from N-BK7, a popular glass type in the optical industry due to its excellent optical properties and high damage threshold. This material is often used in high-power laser applications and other precision optical systems. The window has a diameter of 25mm, making it suitable for a wide range of applications that require a compact yet robust optical component.

The window features a thin lens shape, which is designed to minimize optical aberrations and distortions. This makes it ideal for applications that require high optical precision, such as imaging systems, beam delivery systems, and spectroscopy.

The window is coated with Knight Optical's AI1 coating on both the front and back surfaces. This anti-reflection coating is designed to reduce surface reflections and increase transmission in the specified spectral range. The coating ensures optimal performance of the window in its intended application, reducing losses and improving signal-to-noise ratios.