Recent Trends in Computational Photonics This book brings together the recent cutting edge work on computational methods in photonics and their applications. The latest advances in techniques such as the Discontinuous Galerkin Time Domain method Finite Element Time Domain method Finite Difference Time Domain method as well as their applications are presented. Key aspects such as modelling of non linear effects (Second Harmonic Generation lasing in fibers including gain nonlinearity in metamaterials) the acousto optic effect and the hydrodynamic model to explain electron response in nanoplasmonic structures are included. The application areas covered include plasmonics metamaterials photonic crystals dielectric waveguides fiber lasers. The chapters give a representative survey of the corresponding area. Introduction to Mid Infrared Fibre Lasers Laser Rate and Propagation Equations Obtaining Spectroscopic Parameters as Inputs to the Numerical Model Models for Fibre Lasers Hydrodynamic Model for Nonlinear Plasmonics Discussion and Conclusions