The Flexible Wavelength Selector (FWS) is the optical tunable bandpass filter that uses patented TwinFilm™ technology to control both center wavelength and bandwidth.

The FWS Manual and Auto type has a wide selection of wavelength ranges of UV, VIS, NIR, and SWIR and will work with any collimated light sources to produce a continuously tunable light source, and there’s no calibration or alignment is required. It has both high (OD 10) out-of-band blocking and excellent (>75%) transmission.

The FWS is a simple, turnkey solution for various applications that require specific wavelength excitation and detection throughout the extended wideband spectrum (255 – 1700 nm) and has the potential to integrate with broadband light sources, cameras, and other instruments, resulting in Tunable light sources, Hyperspectral imaging, and other applications.