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  4. Nonlinear solutions for CH(2) frequency combs in optical microresonators
 
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2020
Journal Article
Title

Nonlinear solutions for CH(2) frequency combs in optical microresonators

Abstract
Experimental and theoretical studies of nonlinear frequency combs in CH(3) optical microresonators attracted tremendous research interest during the last decade and resulted in prototypes of soliton-based steadily working devices. Realization of similar combs owing to CH(2) optical nonlinearity promises new breakthroughs and is a big scientific challenge. We analyze the main obstacles for realization of the CH(2) frequency combs in high-Q microresonators and propose two families of steady-state nonlinear solutions, including soliton and periodic solutions, for such combs. Despite periodicity of light fields inside microresonators, the nonlinear solutions can be topologically different and relevant to periodic and antiperiodic boundary conditions. The antiperiodic states are expected to be the most favorable for the comb generation. The found particular solutions exist owing to a large difference in the group velocities between the first and second harmonics, typical of CH(2) microresonators, and to the presence of the pump. They have no zero-pump counterparts relevant to conservative solitons. The stability issue for the found comb solutions remains open and requires further numerical analysis.
Author(s)
Podivilov, Evgeniy
Smirnov, Sergey
Breunig, Ingo  
Fraunhofer-Institut für Physikalische Messtechnik IPM  
Sturman, Boris
Journal
Physical review. A  
Open Access
DOI
10.1103/PhysRevA.101.023815
Additional full text version
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Language
English
Fraunhofer-Institut für Physikalische Messtechnik IPM  
Keyword(s)
  • nonlinear optics

  • Frequency Combs

  • microresonators

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