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5 March 2021 Frequency modulated combs as extended nondispersive waves
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Abstract
In certain lasers, frequency combs can form whose output is frequency-modulated (FM) linearly in time. While this result has been replicated numerically, the core physics have remained elusive. By deriving a mean-field theory for lasers analogous to the Lugiato-Lefever equation, we efficiently describe the dynamics of light in nonlinear laser cavities. This equation can be solved analytically with some weak assumptions, simplifying to the nonlinear Schrodinger equation with a phase potential. The phase of its solution is piecewise quadratic in time|an FM comb. Our results apply to nearly any laser and explain the diverse experimental observations.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David Burghoff "Frequency modulated combs as extended nondispersive waves", Proc. SPIE 11705, Novel In-Plane Semiconductor Lasers XX, 1170510 (5 March 2021); https://doi.org/10.1117/12.2577855
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