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arXiv · 1404.3256

Mode-locked ultrashort pulse generation from on-chip normal dispersion microresonators

S. -W. Huang·H. Zhou·J. Yang·J. F. McMillan·A. Matsko·M. Yu·D. -L. Kwong·L. Maleki·C. W. Wong
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Abstract

We describe the generation of stable mode-locked pulse trains from on-chip normal dispersion microresonators. The excitation of hyper-parametric oscillation is facilitated by the local dispersion disruptions induced by mode interactions. The system is then driven from hyper-parametric oscillation to the mode-locked state with over 200 nm spectral width by controlled pump power and detuning. With the continuous-wave driven nonlinearity, the pulses sit on a pedestal, akin to a cavity soliton. We identify the importance of pump detuning and wavelength-dependent quality factors in stabilizing and shaping the pulse structure, to achieve a single pulse inside the cavity. We examine the mode locking dynamics by numerically solving the master equation and provide analytic solutions under appropriate approximations.

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S. -W. Huang, H. Zhou, J. Yang, J. F. McMillan, A. Matsko, M. Yu, D. -L. Kwong, L. Maleki, C. W. Wong. 2015-01-12. Mode-locked ultrashort pulse generation from on-chip normal dispersion microresonators. https://doi.org/10.1103/physrevlett.114.053901

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