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Comparative analysis of spectral coherence in microresonator frequency combs

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Comparative analysis of spectral coherence in microresonator frequency combs

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Torres Company, Víctor; Castelló Lurbe, David; Silvestre Mora, Enrique

Aquest document és un/a article, creat/da en: 2014

Este documento está disponible también en : 10.1364/OE.22.004678

Microresonator combs exploit parametric oscillation and nonlinear mixing in an ultrahigh-Q cavity. This new comb generator offers unique potential for chip integration and access to high repetition rates. However, time-domain studies reveal an intricate spectral coherence behavior in this type of platform. In particular, coherent, partially coherent or incoherent combs have been observed using the same microresonator under different pumping conditions. In this work, we provide a numerical analysis of the coherence dynamics that supports the above experimental findings and verify particular design rules to achieve spectrally coherent microresonator combs. A particular emphasis is placed in understanding the differences between so-called Type I and Type II combs.

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