FGB25S 2 in x 2 in Square BG3 Colored Glass Bandpass Filter; 315-445nm and 715-1095nm

The FGB25S is a 2 in x 2 in Square BG3 Colored Glass Bandpass Filter, meticulously crafted by Thorlabs. This filter is designed to transmit light within specific wavelength ranges while blocking other wavelengths, making it an essential component in various optical systems.

The FGB25S filter has a transmission range of 315-445nm and 715-1095nm, ideal for applications that require the selection of light within these wavelength bands. It is constructed from N-BK7 Schott glass, a material known for its excellent optical properties, ensuring high-quality performance.

The filter's geometry is rectangular, with a width and height of 50.8mm and a thickness of 2mm. This compact size makes it suitable for integration into various optical setups. The cut-on wavelength is 315nm, and the cut-off wavelength is 445nm, providing a sharp cut-off characteristic that is crucial in many applications.

The FGB25S filter features a Thin Lens shape, which is beneficial in applications where a flat surface is not feasible. The front and back surfaces of the filter are coated with a special coating, denoted as 'tho fgb25', which enhances its performance within the specified wavelength ranges.

This filter is currently in stock and available for immediate purchase through the Thorlabs website. For more information, please refer to the provided weblink.