Journal
OPTICA
Volume 4, Issue 9, Pages 1011-1015Publisher
OPTICAL SOC AMER
DOI: 10.1364/OPTICA.4.001011
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Funding
- Defense Advanced Research Projects Agency (DARPA) [W31P40-13-1-0018]
- Air Force Office of Scientific Research (AFOSR) [FA9550-15-1-0211]
- National Science Foundation (NSF) [ECCS-1509578]
- Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR) (PRIN KEZNYM)
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1509578] Funding Source: National Science Foundation
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Soliton mode-locking in microresonators enables chip-scale coherent optical frequency comb generation. However, it usually leads to multi-soliton combs with a structured spectrum. Instead, the smooth spectrum of a single soliton is favored for applications. Here, we introduce, experimentally and numerically, a passive mechanism for single temporal soliton formation arising from spatial mode-interaction in microresonators. Deterministic single soliton generation is observed for microresonators with strong mode-interaction in experiments and simulations. Further simulations demonstrate that the soliton number is reduced to one in order to lower the nonlinear loss into mode-interaction induced Cherenkov radiation (CR). Our results give important insights into soliton-CR interaction in cavities. (C) 2017 Optical Society of America
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