Multi-mode Waveguides with Tailored Dispersion - a Way for Coherent and Dispersion-Free Propagation of Classical and Quantum Optical Signals

摘要

We show how by a tailored breaking of the translational symmetry in waveguides and optical bersone can control chromatic dispersions of the individual modes at any order and thereby overcomethe problem of coherent classical and quantum signal transmission at long distances. The methodis based on previously developed quantum control techniques and provides analytic solution for ageneral class of models. In practice, this requires mode couplers and the possibility of tailoringthe dispersion laws around the operating frequency. We develop the method for spatial modesof a waveguide and we further apply the technique to design dispersion-less propagation for thepolarization modes of a uniaxial material.