WQK1515-AI1 15 x 15 mm N-BK7 Precision Rectangular Window; t=4mm AR 630-1100nm

This is the WQK1515-AI1, a 15 x 15 mm N-BK7 Precision Rectangular 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. The window's rectangular shape, with dimensions of 15 x 15 mm, makes it suitable for a wide range of applications where a flat, transparent window is required.

The window features anti-reflection (AR) coatings on both the front and back surfaces. These coatings, specifically the KNI AI1 type, are designed to minimize reflection and increase transmission in the specified spectral range. This makes the window ideal for use in high-power laser applications, where low loss and high transmission are crucial.

The window's thin lens shape further enhances its functionality, making it suitable for use in beam shaping or beam conditioning applications. The window is currently in stock and available for immediate purchase from Knight Optical's website.