Bandpass Tuneable Filter

Short & Long Bandpass Tuneable Filters of WLTF-BM- & WLTF-BE- series are built based on free-space optical Fourier transformation combing with diffraction grating to implement passband tuning. Unique optics design produces an access of selecting spatially desired spectral ingredients, either long pass or short pass, of input light and offers flat transmission in passband with unprecedented low insertion loss and polarisation dependent loss (PDL). Precise tuning mechanism enables filters to provide high wavelength resolution and excellent wavelength repeatability.

For more information on Bandpass Tuneable Filter talk to BBN International Ltd