87-843 50 mm Dia. Hard Coated OD 4.0 25nm Bandpass Filter; t=3.5 mm 1400nm

The 87-843 is a Bandpass Filter with a diameter of 50 mm, sourced from the reputable vendor Edmund Optics. This filter is specifically designed for a central wavelength (CWL) of 1400nm, making it suitable for applications that require precise wavelength selection within this range.

The filter is constructed with a hard coated OD 4.0, ensuring durability and resistance to environmental factors. It has a thickness of 3.5 mm, providing structural stability and minimizing optical distortions. The bandpass characteristic of this filter is defined by a cut-on wavelength of 1387.5nm and a cut-off wavelength of 1412.5nm, resulting in a narrow bandwidth of 25nm. This feature is crucial in applications where stray light suppression and high transmission are essential.

The coating on both the front and back surfaces of the filter is EDM 87-819. This coating enhances the filter's performance by reducing reflection and increasing transmission, thereby improving the signal-to-noise ratio. The filter's shape is a Thin Lens, which minimizes optical aberrations and ensures efficient light transmission.

The 87-843 filter is currently in stock and available for immediate purchase through the provided weblink. With its robust design, precise wavelength selection, and high transmission, this filter is an excellent choice for various optical applications.