Modelocking and femtosecond pulse generation in chip-based frequency combs

Publication Type:

Journal Article


Optics Express, Volume 21, p.1335-1343 (2013)




We investigate simultaneously the temporal and optical and radio-frequency spectral properties of parametric frequency combs generated in silicon-nitride microresonators and observe that the system undergoes a transition to a mode-locked state. We demonstrate the generation of sub-200-fs pulses at a repetition rate of 99 GHz. Our calculations show that pulse generation in this system is consistent with soliton modelocking. Ultimately, such parametric devices offer the potential of producing ultra-short laser pulses from the visible to mid-infrared regime at repetition rates from GHz to THz. (C) 2013 Optical Society of America


Times Cited: 56Foster, Mark/E-8011-2010; Foster, Mark/
Foster, Mark/0000-0002-4524-141X