eng URI http://hdl.handle.net/10795/3599 ενέργεια των κυμάτων ηλεκτρική ενέργεια τηλεπικοινωνία We discuss the optimization of photonic crystal waveguides for four-wave mixing applications, taking into account linear loss and free-carrier effects. Suitable figures-of-merits are introduced in order to guide us through the choice of practical, high efficiency designs requiring relatively low pump power and small waveguide length. In order to realistically perform the waveguide optimization process, we propose and validate an approximate expression for the four-wave mixing efficiency, which significantly alleviates our numerical calculations. Promising waveguide designs are identified by means of exhaustive search, altering some structural parameters. Our approach aims at optimizing the waveguides for nonlinear signalprocessing applications based on the four-wave mixing. 4 pp. LOMv1.0 creator LOMv1.0 publisher LOMv1.0 Scientific Coordinator LOMv1.0 Project Executing Organisation 2014-01-17 Digital Library of the Operational Programme "Education and Lifelong Learning" abstract types Text Telecommunications Photonic crystal waveguides Slow light Delay lines Four-wave mixing Nonlinear optics Φωτονικοί κρύσταλλοι Φωτονικοί κυματοδηγοί Αργό φως Γραμμές καθυστέρησης Μίξη τεσσάρων κυμάτων https://www.osapublishing.org/ol/abstract.cfm?uri=ol-39-4-884 502223 application/pdf http://repository.edulll.gr/edulll/bitstream/10795/3599/2/3599_1.56_%ce%94%ce%97%ce%9c_17_1_14.pdf URI http://hdl.handle.net/10795/3599 LOMv1.0creator 2016-06-09T13:31:25Z LOMv1.0validator 2016-06-09T13:31:25Z LOMv1.0 gre no no Copyright EYD-EPEDBM (Operational Programme "Education and Lifelong Learning")