2014/04/09 by Wei Liang, Anatoliy A. Savchenkov, Vladimir S. Ilchenko +4 · 87 citations
Physics and Astronomy · #Advanced Fiber Laser Technologies #Advanced Frequency and Time Standards #Dispersion (optics) #Envelope (radar) #Frequency comb #Harmonics #Kerr effect #Nonlinear optics #Optical frequency comb #Phase (matter) #Photorefractive and Nonlinear Optics #Resonator #Self-phase modulation #physics.optics
paper · pdf · doi:10.1364/ol.39.002920
published in Optics Letters 39(10), 2920 (Optica Publishing Group) · 5 pages, 5 figures, to appear in Optics Letters
arxiv created 2014/04/09 · openalex publication_date 2014/05/06 · arxiv updated 2015/06/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We demonstrate experimentally, and describe theoretically, generation of a wide, fundamentally phase-locked Kerr frequency comb in a nonlinear resonator with a normal group velocity dispersion (GVD). A magnesium fluoride whispering-gallery mode resonator characterized with 10 GHz free spectral range and pumped either at 780 or 795 nm is used in the experiment. The envelope of the observed frequency comb differs significantly from the Kerr frequency comb spectra reported previously. We show via numerical simulation that, while the frequency comb does not correspond to generation of short optical pulses, the relative phase of the generated harmonics are fixed.