Phase-resolved investigation of fast third-order optical nonlinearities in photonic devices at telecommunication wavelenghts [Elektronische Ressource] / Anatoly Sherman

Phase-resolved investigation of fast third-order optical nonlinearities in photonic devices at telecommunication wavelengths Von der Fakultät der Mathematik und Physik der Gottfried Wilhelm Leibniz Universität Hannover zur Erlangung des Grades Doktor der Naturwissenschaften Dr. rer. nat. genehmigte Dissertation von M.Sc. Anatoly Sherman geboren am 19.05.1978 in Beltsy 2010 1 Referent: Prof. Dr. Uwe Morgner Korreferent: Prof. Dr. Piet. O. Schmidt Tag der Promotion: 08.11.10 2 Abstract Photonic devices are widely used in optical communication systems and all-optical switching in roles of waveguides, multiplexers, interconnectors, wavelength converters, and others. By designing these devices, characterization of its third-order optical nonlinearities, such as nonlinear refractive index n and nonlinear absorption , is very important. For example, for 2use of optical fibers in telecommunication branch, it is desirable to have insignificant nonlinearities in order to transfer data with minimum distortion. On the other hand, optical fibers with high optical nonlinearities are often beneficial when building a laser system. The determination of the nonlinear properties of on-chip photonic devices due to fast optical nonlinearities, particularly nonlinear figure-of-merit (n /  ,   wavelength), is highly 2important for high bit rate data transfer.