Scientific Results

Spatial mode-interaction induced single soliton generation in microresonators

Year: 2017

Authors: Bao C., Xuan Y., Leaird D.E., Wabnitz S., Qi M., Weiner A.M.

Autors Affiliation: School of Electrical and Computer Engineering, Purdue University, 465 Northwestern Avenue, West Lafayette, IN 47907-2035, United States; Birck Nanotechnology Center, Purdue University, 1205 West State Street, West Lafayette, IN 47907, United States; Dipartimento di Ingegneria dell’Informazione, Università di Brescia, INO-CNR, via Branze 38, Brescia, 25123, Italy

Abstract: 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.

Journal/Review: OPTICA

Volume: 4 (9)      Pages from: 1011  to: 1015

More Information: Ministero dell’Istruzione, dell’Università e della Ricerca, MIUR. National Science Foundation, NSF, ECCS-1509578. Defense Advanced Research Projects Agency, DARPA, W31P40-13-1-0018. Air Force Office of Scientific Research, AFOSR, FA9550-15-1-0211. Ministero dell’Istruzione, dell’Università e della Ricerca, MIUR, PRIN 2015KEZNYM. – 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’Università e della Ricerca (MIUR) (PRIN 2015KEZNYM).
KeyWords: Integrated optics; Locks (fasteners); Nonlinear equations; Nonlinear optics; Optical frequency conversion; Resonators, Cherenkov radiations; Coherent optical; Micro resonators; Mode interactions; Multi solitons; Passive mechanism; Single soliton; Temporal solitons, Solitons
DOI: 10.1364/OPTICA.4.001011

Citations: 22
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