Frequency comb generation in quadratic nonlinear media
| Autor: | Ricciardi, Iolanda, Mosca, Simona, Parisi, Maria, Maddaloni, Pasquale, Santamaria, Luigi, De Natale, Paolo, De Rosa, Maurizio |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Physical Review A 91, 063839 (2015) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.91.063839 |
| Popis: | We experimentally demonstrate and theoretically explain the onset of optical frequency combs in a simple cavity-enhanced second-harmonic-generation system, exploiting second-order nonlinear interactions. Two combs are simultaneously generated around the fundamental pump frequency, with a spectral bandwidth up to about 10 nm, and its second harmonic. We observe different regimes of generation, depending on the phase-matching condition for second-harmonic-generation. Moreover, we develop an elemental model which provides a deep physical insight into the observed dynamics. Despite the different underlying physical mechanism, the proposed model is remarkably similar to the description of third-order effects in microresonators, revealing a potential variety of new effects to be explored and laying the groundwork for a novel class of highly efficient and versatile frequency comb synthesizers based on second-order nonlinear materials. Comment: 25 pages, 7 figures |
| Databáze: | arXiv |
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