Modelocking and femtosecond pulse generation in chip-based frequency combs.

Opt Express 2013 Jan;21(1):1335-43

School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA.

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.

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http://dx.doi.org/10.1364/OE.21.001335DOI Listing
January 2013
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