eng URI http://hdl.handle.net/10795/3600 ενέργεια των κυμάτων ηλεκτρική ενέργεια τηλεπικοινωνία We present approximate analytical expressions for the estimation of the degenerate four-wave mixing conversion efficiency in slow light photonic crystal waveguides. The derived formulas incorporate the different effective modal areas and the frequency-dependent linear and nonlinear parameters of the pump, signal and idler waves. The influence of linear loss, two-photon absorption and free-carrier generation is also accounted for. Numerical solution of the coupled propagation equations is used to verify the validity of the proposed expressions under different values of the linear and nonlinear parameters of the waveguide. It is shown that the derived expressions provide an accurate estimation of the conversion efficiency and are thus expected to be very useful in the design of photonic crystal waveguides for nonlinear signal processing applications. 10 pp. LOMv1.0 creator LOMv1.0 publisher LOMv1.0 Scientific Coordinator LOMv1.0 Project Executing Organisation 2014-01-29 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/josab/abstract.cfm?uri=josab-31-2-366 867150 application/pdf http://repository.edulll.gr/edulll/bitstream/10795/3600/2/3600_1.56_%ce%94%ce%97%ce%9c_29_1_14.pdf URI http://hdl.handle.net/10795/3600 LOMv1.0creator 2016-06-09T14:08:34Z LOMv1.0validator 2016-06-09T14:08:34Z LOMv1.0 gre no no Copyright EYD-EPEDBM (Operational Programme "Education and Lifelong Learning")