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RESEARCH PRODUCT
Optical Bloch-mode-induced quasi phase matching of quadratic interactions in one-dimensional photonic crystals
Matteo CherchiFrancesca BragheriDaniele Facciosubject
PhysicsQuasi-phase-matchingbusiness.industryNonlinear opticsPhysics::OpticsStatistical and Nonlinear PhysicsMicrostructured optical fiberGratingWaveguide (optics)Atomic and Molecular Physics and OpticsOptoelectronicsbusinessDiffraction gratingBloch wavePhotonic crystaldescription
We examine in detail the quasi-phase-matching process obtained as a stationary modulation of the fundamental field at the band edge of a finite one-dimensional photonic crystal. The treatment is carried out in terms of the structure Bloch waves and fully explains the behavior of second-harmonic generation in the grating. An integrated microstructured AlGaAs mesa waveguide is proposed that gives efficient second-harmonic and difference-frequency generation in virtue of the combined presence of a periodic modulation of the fundamental-field amplitude and of the photonic bandgap edge.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-02-01 |