Microwave and RF signal processing based on integrated soliton crystal optical microcombs

Coherent optical communications using coherence-cloned Kerr soliton microcombs

Dissipative Kerr soliton microcomb has been recognized as a promising on-chip multi-wavelength laser source for fiber optical communications, as its comb lines possess frequency and phase stability far beyond independent lasers. In the scenarios of coherent optical transmission and interconnect, a highly beneficial but rarely explored target is to re-generate a Kerr soliton microcomb at the receiver side as local oscillators that conserve the frequency and phase property of the incoming data carriers, so that to enable coherent detection with minimized optical and electrical compensations. Her…

Photonic RF channelizer based on a 90 wavelength optical soliton crystal 49GHz Kerr microcomb

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 instantaneous RF operation bandwidth of 8.08 GHz and verify RF channelization up to 17.5…

基于不同输入信号波形的微梳微波光子信号处理器的性能

The performance of microwave photonic signal processors based on microcombs with different input signal waveforms

本文实验演示了基于微梳的MWP信号处理器处理多种输入信号波形的能力，量化了不同波形的处理精度并通过理论分析解释了差异，为处理各种微波信号提供了指导。

Optical data transmission field trial @ 44Tb/s with a 49GHz Kerr soliton crystal microcomb

We report world record high data transmission over standard optical fiber from a single optical source. We achieve a line rate of 44.2 Terabits per second (Tb/s) employing only the C-band at 1550nm, resulting in a spectral efficiency of 10.4 bits/s/Hz. We use a new and powerful class of micro-comb called soliton crystals that exhibit robust operation and stable generation as well as a high intrinsic efficiency that, together with an extremely low spacing of 48.9 GHz enables a very high coherent data modulation format of 64 QAM. We achieve error free transmission across 75 km of standard optica…

基于克尔孤子微梳源的双偏振射频信道化器

Dual-polarization RF Channelizer Based on Kerr Soliton Microcomb Sources

本文提出一种基于克尔孤子微梳的双偏振RF信道化器，通过游标效应和双偏振态将宽频RF频谱分割为多个数字兼容频段，实现高分辨率信道化，为单片集成光子RF接收器奠定基础。

基于微梳与反馈控制的微波光子横向滤波器

Microwave photonic transversal filters based on microcombs with feedback control

本文提出并实验比较了四种基于微梳的微波光子横向滤波器反馈控制方法，显著提升了梳线整形精度、信号处理性能及系统长期稳定性，为实际应用提供了实现指南。