Optimizing the accuracy of microcomb-based microwave photonic transversal signal processors
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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Pages (from-to) | 7223-7237 |
Journal / Publication | Journal of Lightwave Technology |
Volume | 41 |
Issue number | 23 |
Online published | 12 Sept 2023 |
Publication status | Published - 1 Dec 2023 |
Link(s)
Abstract
Microwave photonic (MWP) transversal signal processors offer a compelling solution for realizing versatile high-speed information processing by combining the advantages of reconfigurable electrical digital signal processing and high-bandwidth photonic processing. With the capability of generating a number of discrete wavelengths from micro-scale resonators, optical microcombs are powerful multi-wavelength sources for implementing MWP transversal signal processors with significantly reduced size, power consumption, and complexity. By using microcomb-based MWP transversal signal processors, a diverse range of signal processing functions have been demonstrated recently. In this paper, we provide a detailed analysis for the processing inaccuracy that is induced by the imperfect response of experimental components. First, we investigate the errors arising from different sources including imperfections in the microcombs, the chirp of electro-optic modulators, chromatic dispersion of the dispersive module, shaping errors of the optical spectral shapers, and noise of the photodetector. Next, we provide a global picture quantifying the impact of different error sources on the overall system performance. Finally, we introduce feedback control to compensate the errors caused by experimental imperfections and achieve significantly improved accuracy. These results provide a guide for optimizing the accuracy of microcomb-based MWP transversal signal processors. © 2023 IEEE.
Research Area(s)
- Adaptive optics, High-speed optical techniques, Microwave photonics, Optical fibers, optical microcombs, Optical resonators, optical signal processing, Program processors
Citation Format(s)
Optimizing the accuracy of microcomb-based microwave photonic transversal signal processors. / Sun, Yang; Wu, Jiayang; Li, Yang et al.
In: Journal of Lightwave Technology, Vol. 41, No. 23, 01.12.2023, p. 7223-7237.
In: Journal of Lightwave Technology, Vol. 41, No. 23, 01.12.2023, p. 7223-7237.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review