Broadband photonic RF channelizer with a Kerr soliton crystal micro-comb
Mengxi Tan, Xingyuan Xu, and David J. Moss
TL;DR
This paper demonstrates a high-performance, integrated photonic RF channelizer using a Kerr soliton crystal micro-comb, enabling broad RF bandwidth and tunability for advanced signal processing applications.
Contribution
It introduces a 92-channel RF channelizer based on a 48.9 GHz micro-comb with soliton crystals, achieving significant RF bandwidth and tunability in a compact integrated device.
Findings
Achieved an RF bandwidth of 8.08 GHz instantaneously.
Extended RF bandwidth to 17.55 GHz through temperature tuning.
Demonstrated a 92-channel RF channelizer with high integration and performance.
Abstract
We report a 92 channel RF channelizer based on a 48.9 GHz integrated micro-comb that operates via soliton crystals, together with a passive high-Q ring resonator that acts as a periodic filter with an optical 3dB bandwidth of 121.4 MHz. We obtain an instant RF bandwidth of 8.08 GHz and 17.55 GHz achieved through temperature tuning. These results represent a major advance to achieving fully integrated photonic RF spectrum channelizers with reduced low complexity, size, and high performance for digital-compatible signal detection and broadband analog signal processing.
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