Abstract
Silicon on insulator photonic wire waveguides offer tight sub-wavelength confinement of light, high nonlinearities and large and controllable geometrical Group Velocity Dispersion (GVD) [1]. Arranging wires in arrays brings about new opportunities for dispersion control. Strongly dispersive coupling between modes of adjacent wires causes substantial and controllable variation of the zero GVD wavelength between different supermodes [2]. This modifies the phase matching conditions for resonant (Cherenkov) radiation [3], which is one of the distinctive features of solitons in waveguides with sign-changing GVD [4].
© 2011 Optical Society of America
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