Feedback Control in Microwave Photonic Transversal Filter Systems Based on Optical Microcombs

Yang Li; Yang Sun; Jiayang Wu; Caitlin E. Murray; Guanghui Ren; Xingyuan Xu; Bill Corcoran; Sai Tak Chu; Brent E. Little; Roberto Morandotti; Arnan Mitchell; David J. Moss

doi:10.1109/JSTQE.2024.3377249

Feedback Control in Microwave Photonic Transversal Filter Systems Based on Optical Microcombs

Yang Li, Yang Sun, Jiayang Wu^*, Caitlin E. Murray, Guanghui Ren, Xingyuan Xu, Bill Corcoran, Sai Tak Chu, Brent E. Little, Roberto Morandotti, Arnan Mitchell, David J. Moss^*

^*Corresponding author for this work

Department of Physics

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

1 Citation (Scopus)

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.

Original language	English
Article number	2900117
Journal	IEEE Journal on Selected Topics in Quantum Electronics
Volume	30
Issue number	5
Online published	18 Mar 2024
DOIs	https://doi.org/10.1109/JSTQE.2024.3377249
Publication status	Published - Sept 2024

Funding

This work was supported in part by the Australian Research Council Centre of Excellence in Optical Microcombs for Breakthrough Science under Grant CE230100006, in part by the Australian Research Council Discovery Projects Programs under Grant DP150104327, Grant DP190102773, and Grant DP190101576, in part by the Australian Government, and in part by the Swinburne ECR-SUPRA Program. The work of Roberto Morandotti was supported in part by the Natural Sciences and Engineering Research Council of Canada (NSERC) through the Strategic, Discovery, and Alliance Grants Schemes, in part by the MEIE PSR-SIIRI Initiative in Quebec, and in paty by the Canada Research Chair Program

Research Keywords

feedback control
Integrated optics
microwave photonics
optical microcombs

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title = "Feedback Control in Microwave Photonic Transversal Filter Systems Based on Optical Microcombs",

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. {\textcopyright} 1995-2012 IEEE.",

keywords = "feedback control, Integrated optics, microwave photonics, optical microcombs",

author = "Yang Li and Yang Sun and Jiayang Wu and Murray, {Caitlin E.} and Guanghui Ren and Xingyuan Xu and Bill Corcoran and Chu, {Sai Tak} and Little, {Brent E.} and Roberto Morandotti and Arnan Mitchell and Moss, {David J.}",

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doi = "10.1109/JSTQE.2024.3377249",

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T1 - Feedback Control in Microwave Photonic Transversal Filter Systems Based on Optical Microcombs

AU - Li, Yang

AU - Sun, Yang

AU - Wu, Jiayang

AU - Murray, Caitlin E.

AU - Ren, Guanghui

AU - Xu, Xingyuan

AU - Corcoran, Bill

AU - Chu, Sai Tak

AU - Little, Brent E.

AU - Morandotti, Roberto

AU - Mitchell, Arnan

AU - Moss, David J.

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N2 - 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.

AB - 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.

KW - feedback control

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JF - IEEE Journal on Selected Topics in Quantum Electronics

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ER -

Feedback Control in Microwave Photonic Transversal Filter Systems Based on Optical Microcombs

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