FLH633-5 Premium Bandpass Filter; Dia:25 mm; CWL=633nm; FWHM=5nm

The FLH633-5 Premium Bandpass Filter is a high-quality optical component designed and manufactured by Thorlabs. This filter is circular in shape with a diameter of 25 mm and a thickness of 2 mm, making it suitable for a wide range of applications. The filter is specifically designed for use with a center wavelength (CWL) of 633 nm and a full width at half maximum (FWHM) of 5 nm.

The FLH633-5 filter is a bandpass filter, which means it allows light within a specific range of wavelengths to pass through while blocking out other wavelengths. This is achieved through the use of specialized coatings on the front and back surfaces of the filter. In this case, the front surface is coated with "tho flh633-5", while the back surface is coated with the same coating. This coating design ensures high transmission efficiency and excellent blocking characteristics.

The physical data of the FLH633-5 filter includes a cut-on wavelength of 630.5 nm and a cut-off wavelength of 635.5 nm. This means that the filter starts transmitting light at 630.5 nm and stops transmitting at 635.5 nm, with the peak transmission at the specified CWL of 633 nm. The filter's shape is described as "Thin Lens", indicating that it has been designed with lens-like properties for improved optical performance.

The FLH633-5 filter is currently in stock and available for purchase directly from Thorlabs. More information about this product, including pricing and availability, can be found on the Thorlabs website using the provided catalog number.