New Tunable Filter May Unlock Next Generation Of Optical Networks, Via Optics Letters (image) The Optical Society Share Print E-Mail Caption The bandwidth-tunable silicon filter uses periodic nanostructures to filter a single channel from all input frequencies. The filter has the widest tuning span ever demonstrated on a silicon chip. Credit Research Contact: Wei Shi Université Laval in Québec, Canada email@example.com Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.