Abstract
We report on the experimental observation of coherent cavity soliton frequency combs in silica microspheres. Specifically, we demonstrate that careful alignment of the microsphere relative to the coupling fiber taper allows for the suppression of higher-order spatial modes, reducing mode interactions and enabling soliton formation. Our measurements show that the temporal cavity solitons have sub-100-fs durations, exhibit considerable Raman self-frequency shift, and generally come in groups of three or four, occasionally with equidistant spacing in the time domain. RF amplitude noise measurements and spectral interferometry confirm the high coherence of the observed soliton frequency combs, and numerical simulations show good agreement with experiments.
© 2016 Optical Society of America
Full Article | PDF ArticleMore Like This
K. E. Webb, J. K. Jang, J. Anthony, S. Coen, M. Erkintalo, and S. G. Murdoch
Opt. Lett. 41(2) 277-280 (2016)
Miles Anderson, François Leo, Stéphane Coen, Miro Erkintalo, and Stuart G. Murdoch
Optica 3(10) 1071-1074 (2016)
Wei Chen, Bruno Garbin, Alexander U. Nielsen, Stéphane Coen, Stuart G. Murdoch, and Miro Erkintalo
Opt. Lett. 43(15) 3674-3677 (2018)