The WG41050-B is a high-quality optical window from Thorlabs, designed for broadband use with an anti-reflection coating (ARC) suitable for wavelengths between 650 and 1050nm. This window is a flat, circular type, made from UVFS material with a Mal-1965 index.
The window has a diameter of 1 inch (25.4mm) and a thickness of 5mm, making it suitable for a wide range of optical applications. The ARC on both the front and back surfaces helps to minimize reflection and increase transmission, ensuring optimal performance in your system.
The WG41050-B is designed with a thin lens shape, which can be beneficial in certain optical configurations. According to the vendor's information, this item is currently in stock, and you can find more details, including pricing and availability, on the Thorlabs website.