Title of Dissertation: ULTRA-FAST OPTICAL SIGNAL PROCESSING FOR DIGITAL COMMUNICATIONS USING ALL-OPTICAL NONLINEAR INTERACTIONS IN SEMICONDUCTOR OPTICAL WAVEGUIDES Ehab S. Awad, Doctor of Philosophy, 2003 Dissertation directed by: Professor Julius Goldhar Department of Electrical and Computer Engineering In optical communications, clock recovery, optical time demultiplexing, and 3R regeneration...

In this paper, photonic technologies for the realization of high-capacity optical time-division multiplexed (OTDM) local and metropolitan area networks (LANs and MANs) are addressed including all-optical techniques such as ultra short pulse generation, all-optical clock recovery, optical multiplexing/demultiplexing, and optical packet compression/decompression. Furthermore, the new trends in hi...

A novel non-paraxial Time-Domain technique based on Pade approximant for modeling ultra short optical pulses has been formulated and tested. The new method is an extension to the parabolic Time-Domain Beam Propagation Method (TDBPM) that solves the time domain wave equation along one direction that allows the time window to follow the evolution of the pulse. In this work the technique was appli...

DRAGOMIR N. NESHEV∗, ANDREY A. SUKHORUKOV∗, WIESLAW KROLIKOWSKI† and YURI S. KIVSHAR∗,‡ ∗Nonlinear Physics Centre, Research School of Physical Sciences and Engineering, Centre for Ultra-high bandwidth Devices for Optical Systems (CUDOS), Australian National University, Canberra ACT 0200, Australia †Laser Physics Centre, Research School of Physical Sciences and Engineering, Centre for Ultra-high...

The dispersion in photonic crystal fibers likewise conventional optical fibers determines performance of optical systems. Fibers having near-zero dispersion and wideband flat characteristics are considered crucial for applications in both the linear and nonlinear regimes. This paper presents an octagonal photonic crystal fiber design for ultra-flattened chromatic dispersion characteristic and e...