Title :
Optically controlled delay lines by pulse self-trapping in parametric waveguides with distributed feedback
Author :
Sario, Michele De ; Conti, Claudio ; Assanto, Gaetano
Author_Institution :
Nat. Inst. for the Phys. of Matter, Rome, Italy
Abstract :
Quadratically nonlinear waveguides are studied in the presence of a Bragg grating resonant with one of the involved frequencies. In the case of second-harmonic generation and distributed feedback at the fundamental, we investigate the existence and features of two-color gap-solitary waves, focusing on controlling their propagation speed. This leads to the conception of optically controlled delay lines and retiming schemes for pulse streams in communication systems.
Keywords :
Bragg gratings; optical control; optical delay lines; optical fibre communication; optical focusing; optical parametric devices; optical solitons; optical waveguide theory; optical waveguides; Bragg grating; distributed feedback; optical communication systems; optical parametric waveguides; optically controlled delay lines; propagation speed; pulse self-trapping; pulse streams; quadratically nonlinear waveguides; second-harmonic generation; two-color gap-solitary waves; Bragg gratings; Communication system control; Delay lines; Frequency; Nonlinear optics; Optical control; Optical feedback; Optical pulses; Optical waveguides; Resonance;
Journal_Title :
Quantum Electronics, IEEE Journal of
