42.70.Mp:Nonlinear optical crystals (see also 77.84.-s Dielectric, piezoelectric, and ferroelectric materials)
42.70.Qs:Photonic bandgap materials (for photonic crystal lasers, see 42.55.Tv)
42.79.Hp:Optical processors, correlators, and modulators
42.82.Et:Waveguides, couplers, and arrays (for fiber waveguides, see 42.81.Qb)
42.82.Et
42.70.Mp
78.20.Jq
42.79.Hp
42.70.Qs
Beschreibung:
In this Letter we demonstrate broadband electro-optic modulation with frequencies of up to 40GHz in slotted photonic crystal waveguides based on silicon-on-insulator substrates covered and infiltrated with a nonlinear optical polymer. Two-dimensional photonic crystal waveguides in silicon enable integrated optical devices with an extremely small geometric footprint on the scale of micrometers. The slotted waveguide design optimizes the overlap of the optical and electric fields in the second-order nonlinear optical medium and, hence, the interaction of the optical and electric waves.
