Optical frequency combs currently represent enabling components in a wide number of fast-growing research elds, from frequency metrology to precision spectroscopy, from synchronization of telecommunication systems to environmental and biomedical spectrometry. As recently demonstrated, quadratic nonlinear media are a promis- ing platform for optical frequency combs generation, through the onset of an internally pumped optical paramet- ric oscillator in cavity enhanced second-harmonic generation systems. We present here a proposal for quadratic frequency comb generation in AlGaAs waveguide resonators. Based on the crystal symmetry properties of the AlGaAs material, quasi-phase matching can be realized in curved geometries (directional quasi-phase matching), thus ensuring ecient optical frequency conversion. We propose a novel design of AlGaAs waveguide resonators with strongly reduced total losses, compatible with long-path, high-quality resonators. By means of a numerical study, we predict ecient frequency comb generation with threshold powers in the microwatt range, paving the way for the full integration of frequency comb synthesizers in photonic circuits.

Directional quasi-phase matching AlGaAs waveguide microresonators for efficient generation of quadratic frequency combs / Parisi, Maria; Ricciardi, Iolanda; Mosca, Simona; Morais, Natália; Hansson, Tobias; Wabnitz, Stefan; Leo, Giuseppe; De Rosa, Maurizio. - 10111:(2017), p. 1011120. (Intervento presentato al convegno Photonics West 2017 tenutosi a San Francisco, USA) [10.1117/12.2256290].

Directional quasi-phase matching AlGaAs waveguide microresonators for efficient generation of quadratic frequency combs

WABNITZ, Stefan;
2017

Abstract

Optical frequency combs currently represent enabling components in a wide number of fast-growing research elds, from frequency metrology to precision spectroscopy, from synchronization of telecommunication systems to environmental and biomedical spectrometry. As recently demonstrated, quadratic nonlinear media are a promis- ing platform for optical frequency combs generation, through the onset of an internally pumped optical paramet- ric oscillator in cavity enhanced second-harmonic generation systems. We present here a proposal for quadratic frequency comb generation in AlGaAs waveguide resonators. Based on the crystal symmetry properties of the AlGaAs material, quasi-phase matching can be realized in curved geometries (directional quasi-phase matching), thus ensuring ecient optical frequency conversion. We propose a novel design of AlGaAs waveguide resonators with strongly reduced total losses, compatible with long-path, high-quality resonators. By means of a numerical study, we predict ecient frequency comb generation with threshold powers in the microwatt range, paving the way for the full integration of frequency comb synthesizers in photonic circuits.
2017
Photonics West 2017
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Directional quasi-phase matching AlGaAs waveguide microresonators for efficient generation of quadratic frequency combs / Parisi, Maria; Ricciardi, Iolanda; Mosca, Simona; Morais, Natália; Hansson, Tobias; Wabnitz, Stefan; Leo, Giuseppe; De Rosa, Maurizio. - 10111:(2017), p. 1011120. (Intervento presentato al convegno Photonics West 2017 tenutosi a San Francisco, USA) [10.1117/12.2256290].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1214112
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