Broadband Photonic RF Channelizer With 92 Channels Based on a Soliton Crystal Microcomb

被引：39

作者：

Xu, Xingyuan ^{[1
,2
]}

Tan, Mengxi ^{[1
]}

Wu, Jiayang ^{[1
]}

Boes, Andreas ^{[3
]}

Nguyen, Thach G. ^{[3
]}

Chu, Sai T. ^{[4
]}

Little, Brent E. ^{[5
]}

Morandotti, Roberto ^{[6
,7
]}

Mitchell, Arnan ^{[3
]}

Moss, David J. ^{[1
]}

机构：

[1] Swinburne Univ Technol, Opt Sci Ctr, Hawthorn, Vic 3122, Australia

[2] Monash Univ, Dept Elect & Comp Syst Engn, Electrophoton Lab, Clayton, Vic 3800, Australia

[3] RMIT Univ, Melbourne, Vic 3001, Australia

[4] City Univ Hong Kong, Dept Phys, Tat Chee Ave, Hong Kong 999077, Peoples R China

[5] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China

[6] INRS Energie Mat & Telecommun, Varennes, PQ J3X 1S2, Canada

[7] Univ Elect Sci & Technol China, Inst Fundamental & Frontier Sci, Chengdu 610054, Peoples R China

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2020年 / 38卷 / 18期

基金：

加拿大自然科学与工程研究理事会; 澳大利亚研究理事会;

关键词：

Radio frequency; Resonant frequency; Bandwidth; Optical resonators; Broadband communication; Photonics; Solitons; Integrated optical frequency comb; Microwave photonic; signal channelization; ENTANGLED QUANTUM STATES; MODE-LOCKED LASER; MICRORING RESONATOR; KERR COMB; MICROWAVE; GENERATION;

D O I：

10.1109/JLT.2020.2997699

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 17.55 GHz via thermal tuning. Our approach is a significant step towards the monolithically integrated photonic RF receivers with reduced complexity, size, and unprecedented performance, which is important for wide RF applications ranging from broadband analog signal processing to digital-compatible signal detection.

引用

页码：5116 / 5121

页数：6

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