Feedback Control in Microwave Photonic Transversal Filter Systems Based on Optical Microcombs
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Article number | 2900117 |
Journal / Publication | IEEE Journal on Selected Topics in Quantum Electronics |
Volume | 30 |
Issue number | 5 |
Online published | 18 Mar 2024 |
Publication status | Published - Sept 2024 |
Link(s)
Abstract
Feedback control plays a crucial role in improving system accuracy and stability for a variety of scientific and engineering applications. Here, we theoretically and experimentally investigate the implementation of feedback control in microwave photonic (MWP) transversal filter systems based on optical microcomb sources, which offer advantages in achieving highly reconfigurable processing functions without requiring changes to hardware. We propose four different feedback control methods including (1) one-stage spectral power reshaping, (2) one-stage impulse response reshaping, (3) two-stage spectral power reshaping, and (4) two-stage synergic spectral power reshaping and impulse response reshaping. We experimentally implement these feedback control methods and compare their performance. The results show that the feedback control can significantly improve not only the accuracy of comb line shaping as well as temporal signal processing and spectral filtering, but also the system's long-term stability. Finally, we discuss the current limitations and future prospects for optimizing feedback control in microcomb-based MWP transversal filter systems implemented by both discrete components and integrated chips. Our results provide a comprehensive guide for the implementation of feedback control in microcomb-based MWP filter systems in order to improve their performance for practical applications. © 1995-2012 IEEE.
Research Area(s)
- feedback control, Integrated optics, microwave photonics, optical microcombs
Citation Format(s)
Feedback Control in Microwave Photonic Transversal Filter Systems Based on Optical Microcombs. / Li, Yang; Sun, Yang; Wu, Jiayang et al.
In: IEEE Journal on Selected Topics in Quantum Electronics, Vol. 30, No. 5, 2900117, 09.2024.
In: IEEE Journal on Selected Topics in Quantum Electronics, Vol. 30, No. 5, 2900117, 09.2024.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review