期刊
NANOPHOTONICS
卷 5, 期 2, 页码 316-331出版社
WALTER DE GRUYTER GMBH
DOI: 10.1515/nanoph-2016-0023
关键词
optical frequency comb; nonlinear optics; second harmonic generation
资金
- Italian Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR) through FIRB Project Optomechanical tailoring of squeezed light [RBFR13QUVI]
- MIUR Progetto Premiale QUANTOM-Quantum Opto-Mechanics
Quadratic nonlinear processes are currently exploited for frequency comb transfer and extension from the visible and near infrared regions to other spectral ranges where direct comb generation cannot be accomplished. However, frequency comb generation has been directly observed in continuously pumped quadratic nonlinear crystals placed inside an optical cavity. At the same time, an introductory theoretical description of the phenomenon has been provided, showing a remarkable analogy with the dynamics of third-order Kerr microresonators. Here, we give an overview of our recent work on chi((2)) frequency comb generation. Furthermore, we generalize the preliminary three-wave spectral model to a many-mode comb and present a stability analysis of different cavity field regimes. Although our work is a very early stage, it lays the groundwork for a novel class of highly efficient and versatile frequency comb synthesizers based on second-order nonlinear materials.
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