Journal
IEEE PHOTONICS JOURNAL
Volume 5, Issue 4, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOT.2013.2277882
Keywords
Kerr optical frequency combs; solitons; Turing patterns; whispering gallery modes
Funding
- Centre National d'Etudes Spatiales (CNES, France) through the Project SHYRO
- ANR project ORA
- Region de Franche-Comte, France
- Labex ACTION
- Mesocentre de Calcul de Franche-Comte
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We investigate the formation of cavity solitons in crystalline whispering-gallery-mode disk resonators that are pumped in different dispersion regimes. In the Fourier domain, these dissipative structures correspond to specific types of mode-locked Kerr optical frequency combs. Depending on the sign of the second-order chromatic dispersion and on the pumping conditions, we show that either bright or dark cavity solitons can emerge, and we show that these two regimes are associated with characteristic spectral signatures that can be discriminated experimentally. We use the Lugiato-Lefever spatiotemporal formalism to investigate the temporal dynamics leading to the formation of these azimuthal solitons, as well as the emergence of Turing patterns. The theoretical results are in excellent agreement with experimental measurements that are obtained using calcium and magnesium fluoride disk resonators pumped near 1550 nm.
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