Scientific Results

AlGaAs waveguide microresonators for efficient generation of quadratic frequency combs

Year: 2017

Authors: Parisi M., Morais N., Ricciardi I., Mosca S., Hansson T., Wabnitz S., Leo G., De Rosa M.

Autors Affiliation: CNR-INO, Istituto Nazionale di Ottica, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Diderot & CNRS, Sorbonne Paris Cité, 10 rue Domon et Duquet, 75205 Paris cedex 13, France; INRS-EMT, 1650 Blvd. Lionel-Boulet, Varennes, Québec J3X 1S2, Canada; Dipartimento di Ingegneria dell’Informazione, Università di Brescia, via Branze 38, 25123 Brescia, Italy

Abstract: We propose a flexible design for directional quasi-phase-matching in AlGaAs waveguide resonators implementing the recently demonstrated optical frequency combs in cavity-enhanced second-harmonic generation. We numerically study the onset of internally pumped optical parametric oscillations that trigger the subsequent comb formation. We also perform a coherence analysis of a particular class of numerically simulated optical frequency combs, corresponding to stable temporal cavity field patterns, revealing the high degree of coherence associated with such stable solutions, a key feature for many refined applications of optical frequency combs. Our analysis shows that efficient generation of coherent frequency combs is possible with threshold powers in the microwatt range and path lengths up to several millimeters, thus enabling the practical realization of new on-chip frequency comb synthesizers, fully integrable in more complex photonic circuits. (C) 2017 Optical Society of America


Volume: 34 (9)      Pages from: 1842  to: 1847

More Information: Funding: Ministero dell’Istruzione, dell’Università e
della Ricerca (MIUR) (PRIN-2015KEZNYM, FIRB_
RBFR13QUVI); Ministero degli Affari Esteri e della
Cooperazione Internazionale (NOICE Joint Laboratory).
Acknowledgment: M. D. R. acknowledges support from
Consiglio Nazionale delle Ricerche through the Short-Term
Mobility Program 2016.
KeyWords: Aluminum alloys; Aluminum gallium arsenide; Natural frequencies; Nonlinear optics; Optical frequency conversion; Optical materials; Phase matching; Waveguides; AlGaAs waveguides; Coherence analysis; Coherent frequency; Degree of coherence; Optical frequency combs; Optical parametric oscillations; Photonic circuits; Quasi phase matching, Gallium alloy
DOI: 10.1364/JOSAB.34.001842

Citations: 6
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