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Advanced Adaptive Photonic RF Filters with 80 Taps Based on an Integrated Optical Micro-Comb Source
Xu, Xingyuan1; Tan, Mengxi1; Wu, Jiayang1; Nguyen, Thach G.2; Chu, Sai Tak3; Little, Brent E.4; Morandotti, Roberto5,6,7; Mitchell, Arnan2; Moss, David J.1
Department瞬态光学技术国家重点实验室
2019-02-15
Source PublicationJOURNAL OF LIGHTWAVE TECHNOLOGY
ISSN0733-8724;1558-2213
Volume37Issue:4Pages:1288–1295
Contribution Rank4
Abstract

We demonstrate a photonic radio frequency (RF) transversal filter based on an integrated optical micro-comb source featuring a record low free spectral range of 49 GHz, yielding 80 micro-comb lines across the C-band. This record high number of taps, or wavelengths for the transversal filter results in significantly increased performance including a Q(RF) factor more than four times higher than previous results. Furthermore, by employing both positive and negative taps, an improved out-of-band rejection of up to 48.9 dB is demonstrated using a Gaussian apodization, together with a tunable center frequency covering the RF spectra range, with a widely tunable 3-dB bandwidth and versatile dynamically adjustable filter shapes. Our experimental results match well with theory, showing that our transversal filter is a competitive solution to implement advanced adaptive RF filters with broad operational bandwidth, high frequency selectivity, high reconfigurability, and potentially reduced cost and footprint. This approach is promising for applications in modern radar and communications systems.

KeywordMicro-ring resonators microwave photonics
DOI10.1109/JLT.2019.2892158
Indexed BySCI ; EI
Language英语
WOS IDWOS:000460331700028
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
EI Accession Number20191106641005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/31323
Collection瞬态光学技术国家重点实验室
Corresponding AuthorMoss, David J.
Affiliation1.Swinburne Univ Technol, Ctr Microphoton, Hawthorn, Vic 3122, Australia
2.RMIT Univ, Sch Engn, Melbourne, Vic 3001, Australia
3.City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Peoples R China
4.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China
5.INSR Energie Mat & Telecommun, Varennes, PQ J3X 1S2, Canada
6.ITMO Univ, St Petersburg 1971010, Russia
7.Univ Elect Sci & Technol China, Inst Fundamental & Frontier Sci, Chengdu 610054, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Xu, Xingyuan,Tan, Mengxi,Wu, Jiayang,et al. Advanced Adaptive Photonic RF Filters with 80 Taps Based on an Integrated Optical Micro-Comb Source[J]. JOURNAL OF LIGHTWAVE TECHNOLOGY,2019,37(4):1288–1295.
APA Xu, Xingyuan.,Tan, Mengxi.,Wu, Jiayang.,Nguyen, Thach G..,Chu, Sai Tak.,...&Moss, David J..(2019).Advanced Adaptive Photonic RF Filters with 80 Taps Based on an Integrated Optical Micro-Comb Source.JOURNAL OF LIGHTWAVE TECHNOLOGY,37(4),1288–1295.
MLA Xu, Xingyuan,et al."Advanced Adaptive Photonic RF Filters with 80 Taps Based on an Integrated Optical Micro-Comb Source".JOURNAL OF LIGHTWAVE TECHNOLOGY 37.4(2019):1288–1295.
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