Vieira, Manuel AugustoFantoni, AlessandroLouro, PaulaSteiger-Garção, AdolfoVieira, Manuela2012-10-292012-10-292012VIEIRA, M. A.; [et al] – Photonics active filters based on SiC multi layer structures: a two stage active circuit. In 3rd IFIP/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems (DoCEIS 2012). Costa da Caparica, Portugal: Springer, 2012. ISBN 978-3-642-28255-3. Vol. 372. Pp. 503-510.978-3-642-28255-31868-4238http://hdl.handle.net/10400.21/1855Characteristics of tunable wavelength filters based on a-SiC:H multi-layered stacked cells are studied both theoretically and experimentally. Results show that the light-activated photonic device combines the demultiplexing operation with the simultaneous photodetection and self amplification of an optical signal. The sensor is a bias wavelength current-controlled device that make use of changes in the wavelength of the background to control the power delivered to the load, acting a photonic active filter. Its gain depends on the background wavelength that controls the electrical field profile across the device.engAmorphous Si/SiC photodiodesPhotonicOptoelectronicDemultiplexer devicesOptical filtersconference object