Dissipative solitons and breathers in quadratic optical microresonators

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• Alberto Villois (Università degli Studi di Torino)
• Friday 09 December 2022, 11:00-11:30
• Seminar Room 1, Newton Institute.

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HY2W05 - Physical applications

Dissipative solitons in optical microcavities have attracted much attention in recent years due to their applicability to frequency comb technologies. A frequency comb can be thought of as an optical ruler with unprecedented precision. In this talk I will address the problem of generating soliton-comb in a microresonator made of a material characterised by quadratic nonlinearity. Such nonlinearity allows the so-called process of second harmonic generation, hence the potential formation of a soliton-comb in two separated regions of the light spectrum. The difference between group velocities of first and second harmonic comb is investigated theoretically and shown to be a key parameter to ensure the existence and the stability of second harmonic generated soliton-combs. Finally, the transition from soliton to dissipative breathers and to chaotic regimes will be discussed.  

This talk is part of the Isaac Newton Institute Seminar Series series.

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