Abstract:We report a broadband radio
frequency (RF) channelizer with up to 92 channels using a coherent microcomb
source. A soliton crystal microcomb, generated by a 49 GHz micro-ring resonator
(MRR), is used as a multi-wavelength source. Due to its ultra-low comb spacing,
up to 92 wavelengths are available in the C band, yielding a broad operation
bandwidth. Another high-Q MRR is employed as a passive optical periodic filter to
slice the RF spectrum with a high resolution of 121.4 MHz. We experimentally
achieve an ins… Show more
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