FELH1350 Dia:25.0 mm Premium Longpass Filter; Cut-On Wavelength: 1350nm

The FELH1350 is a premium longpass filter, manufactured by Thorlabs, with a cut-on wavelength of 1350nm. This filter is designed with a circular base shape, featuring a diameter of 25.0 mm and a thickness of 3.5 mm, providing a robust and compact design suitable for various optical applications.

The filter's primary function is to transmit wavelengths above its specified cut-on value while blocking lower wavelengths. This particular model has a cut-on wavelength of 1350nm, ensuring minimal transmission of wavelengths below this value. The FELH1350 filter is made of UVFS material, identified as MAL-1965, which is known for its excellent optical properties and durability.

The front and back surfaces of the filter are coated with THo FELH01350, a specialized coating that enhances the filter's performance and longevity. The filter's shape is classified as a thin lens, which implies that it has been designed to minimize optical aberrations and ensure optimal light transmission.

The FELH1350 filter is currently in stock and available for purchase through the Thorlabs website. For more information, users can refer to the provided catalog number and the official product webpage linked below.