Paper 13369-1
Paper 13369-1
Ultrahigh bandwidth signal processing and neuromorphic computing based on integrated Kerr microcombs (Keynote Presentation)
27 January 2025 • 10:45 AM - 11:30 AM PST | Moscone South, Room 307 (Level 3)
Abstract
Microwave Photonic (MWP) transversal signal processors offer an attractive solution for 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. Here, we present a detailed analysis for the processing inaccuracy that are induced by the imperfect response of experimental components. We investigate the errors arising from different sources including imperfections in the microcombs, electro-optic modulator chirp, 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.
Presenter
Swinburne Univ. of Technology (Australia)
Distinguished Professor David Moss is Director of the Optical Sciences Centre at Swinburne University and Deputy Director of the newly established Australian Research Council Centre of Excellence COMBS (Centre for Optical Microcombs for Breakthrough Science). He is a Life Fellow of the Institute of Electrical and Electronics Engineers (IEEE), the world’s largest professional organization for the advancement of technology, based in New York, Fellow of the Optical Society of America (now Optica) based in Washington DC, and a Fellow of the International Society for Photonics (SPIE) based in Washington State in the US. In May 2024 he received an Honorary Doctorate from the Danish Technical University and King Frederik X. He has had a 32 year history of R&D in photonics, nonlinear optics, nanophotonics, quantum optics, opto-electronics and optical communications. He worked in industry for 7 years with Hitachi Central Research Labs in Tokyo, Japan, and JDS Uniphase in Ottawa, Canada. He won