Abstract
On-chip Optical Frequency Combs find use in a variety of applications: Chipscale precision metrology, sensing, in high-speed optical communications as Wavelength Division Multiplexing (WDM) sources etc. Comb generation exploiting cascaded four-wave mixing in microresonators have been extensively investigated using materials such as silicon nitride etc. While such nonlinear platforms generate large number of comb lines, they result in combs with fixed centre frequency that is tuneable only in integer multiples of the FSR and fixed repetition rate that is constrained by microresonator dimensions.
© 2019 IEEE
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