AI Article Synopsis
- The study focuses on optical frequency comb generation using ultra-compact SNAP microresonators, which utilize nonlinear interactions in whispering gallery modes.
- The researchers predict that these small microresonators can create frequency combs with extremely fine sub-gigahertz spacing, outperforming larger traditional ring resonators.
- The paper explores stable comb dynamics, particularly through soliton excitation, and suggests that carefully designing the SNAP radius can help manage dispersion effects from nonlinearity.
Article Abstract
We develop a theory of optical frequency comb generation in ultra-compact surface nanoscale axial photonic (SNAP) bottle microresonators, employing the nonlinear interaction of whispering gallery modes which are confined along an optical fiber with nanoscale radius variation. We predict that a SNAP microresonator with a radius of a few micrometers can generate a frequency comb with an ultra-fine sub-gigahertz spectral spacing, which would require traditional ring resonators of centimeter radius. We identify regimes of stable or quasi-periodic comb dynamics due to soliton excitation, and show that special engineering of the SNAP radius profile can be used to compensate for nonlinearity-induced dispersion.
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| http://dx.doi.org/10.1364/OL.42.002149 | DOI Listing |
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