FBH1550-12 Premium Bandpass Filter; Dia:25 mm; CWL=1550nm; FWHM=12nm

The FBH1550-12 Premium Bandpass Filter is a high-quality optical component designed for precise wavelength selection in the near-infrared region. This filter, sourced from Thorlabs, is circular in shape with a diameter of 25 mm and a thickness of 2 mm, making it suitable for a wide range of optical systems.

The filter is specifically designed for a central wavelength (CWL) of 1550 nm, a region commonly used in optical communication systems. It has a full width at half maximum (FWHM) of 12 nm, indicating a narrow bandwidth and high spectral purity. This means it allows light transmission in a narrow range around the CWL while effectively blocking out unwanted wavelengths.

The FBH1550-12 filter is coated with a proprietary coating, denoted as 'tho fbh1550-12' on both the front and back surfaces. This coating enhances its performance by reducing reflection and increasing transmission efficiency. The filter's shape is described as a Thin Lens, suggesting it may have additional optical power or be designed to focus light.

According to the vendor's information, this filter is in stock and the web link provided is valid. This indicates that the filter is readily available for purchase and use in your optical systems.