Version 1
: Received: 5 December 2023 / Approved: 6 December 2023 / Online: 6 December 2023 (07:09:15 CET)
How to cite:
Moss, D. Advantages of Feedback Control in Microwave Photonic Transversal Filters Based on Kerr Microcombs. Preprints2023, 2023120330. https://doi.org/10.20944/preprints202312.0330.v1
Moss, D. Advantages of Feedback Control in Microwave Photonic Transversal Filters Based on Kerr Microcombs. Preprints 2023, 2023120330. https://doi.org/10.20944/preprints202312.0330.v1
Moss, D. Advantages of Feedback Control in Microwave Photonic Transversal Filters Based on Kerr Microcombs. Preprints2023, 2023120330. https://doi.org/10.20944/preprints202312.0330.v1
APA Style
Moss, D. (2023). Advantages of Feedback Control in Microwave Photonic Transversal Filters Based on Kerr Microcombs. Preprints. https://doi.org/10.20944/preprints202312.0330.v1
Chicago/Turabian Style
Moss, D. 2023 "Advantages of Feedback Control in Microwave Photonic Transversal Filters Based on Kerr Microcombs" Preprints. https://doi.org/10.20944/preprints202312.0330.v1
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.
Keywords
integrated optics; microwave photonics; optical microcombs; feedback control
Subject
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
