2018/01/24 by Xingyuan Xu, Jiayang Wu, Thach G. Nguyen +7 · 4 citations
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Advanced Fiber Optic Sensors #Advanced Photonic Communication Systems #Computer science #Frequency comb #Laser #Materials science #Microwave #Optical frequency comb #Optics #Physics #Radio frequency #Telecommunications #physics.app-ph #physics.optics
paper · pdf · doi:10.1364/oe.26.002569
published as Optics Express Vol. 26, Issue 3, pp. 2569-2583 (2018) · 15 pages, 11 Figures, 60 References
openalex publication_date 2018/01/24 · arxiv created 2018/01/31 · arxiv updated 2018/02/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We demonstrate advanced transversal radio frequency (RF) and microwave functions based on a Kerr optical comb source generated by an integrated micro-ring resonator. We achieve extremely high performance for an optical true time delay aimed at tunable phased array antenna applications, as well as reconfigurable microwave photonic filters. Our results agree well with theory. We show that our true time delay would yield a phased array antenna with features that include high angular resolution and a wide range of beam steering angles, while the microwave photonic filters feature high Q factors, wideband tunability, and highly reconfigurable filtering shapes. These results show that our approach is a competitive solution to implementing reconfigurable, high performance and potentially low cost RF and microwave signal processing functions for applications including radar and communication systems.