Clustered frequency comb.
We show theoretically that it is feasible to generate a spectrally broad Kerr frequency comb consisting of several spectral clusters phase matched due to interplay among second- and higher-order group velocity dispersion contributions. We validate the theoretical analysis experimentally by driving a magnesium fluoride resonator, characterized with 110 GHz free spectral range, with a continuous wave light at 1.55 μm and observing two comb clusters separated by nearly two-thirds of an octave.
Andrey B
AB
Matsko
Anatoliy A
AA
Savchenkov
Shu-Wei
SW
Huang
Lute
L
Maleki