Photonic ADC: overcoming the bottleneck of electronic jitter.
Anatol Khilo,Steven J. Spector,Matthew E. Grein,Amir H. Nejadmalayeri,C.W. Holzwarth,Michelle Y. Sander,Marcus S. Dahlem,Michael Y. Peng,Michael W. Geis,Nicole DiLello,Jung U. Yoon,Ali R. Motamedi,Jason S. Orcutt,J. P. Wang,Cheryl Sorace-Agaskar,Milos A. Popovic,Jie Sun,G.-R. Zhou,Hyunil Byun,Jian Chen,Judy L. Hoyt,Henry I. Smith,Rajeev J. Ram,Michael H. Perrott,Theodore M. Lyszczarz,Erich P. Ippen,Franz X. Kärtner +26 more
TLDR
This work demonstrates that the photonic approach can deliver on its promise by digitizing a 41 GHz signal with 7.0 effective bits using a photonic ADC built from discrete components, a 4-5 times improvement over the performance of the best electronic ADCs which exist today.Abstract:
Accurate conversion of wideband multi-GHz analog signals into the digital domain has long been a target of analog-to-digital converter (ADC) developers, driven by applications in radar systems, software radio, medical imaging, and communication systems. Aperture jitter has been a major bottleneck on the way towards higher speeds and better accuracy. Photonic ADCs, which perform sampling using ultra-stable optical pulse trains generated by mode-locked lasers, have been investigated for many years as a promising approach to overcome the jitter problem and bring ADC performance to new levels. This work demonstrates that the photonic approach can deliver on its promise by digitizing a 41 GHz signal with 7.0 effective bits using a photonic ADC built from discrete components. This accuracy corresponds to a timing jitter of 15 fs - a 4-5 times improvement over the performance of the best electronic ADCs which exist today. On the way towards an integrated photonic ADC, a silicon photonic chip with core photonic components was fabricated and used to digitize a 10 GHz signal with 3.5 effective bits. In these experiments, two wavelength channels were implemented, providing the overall sampling rate of 2.1 GSa/s. To show that photonic ADCs with larger channel counts are possible, a dual 20-channel silicon filter bank has been demonstrated.read more
Citations
More filters
Journal ArticleDOI
A fully photonics-based coherent radar system
Paolo Ghelfi,Francesco Laghezza,Filippo Scotti,Giovanni Serafino,Amerigo Capria,Sergio Pinna,Daniel Onori,Claudio Porzi,Mirco Scaffardi,Antonio Malacarne,Valeria Vercesi,Emma Lazzeri,Fabrizio Berizzi,Antonella Bogoni +13 more
TL;DR: The proposed architecture exploits a single pulsed laser for generating tunable radar signals and receiving their echoes, avoiding radio-frequency up- and downconversion and guaranteeing both the software-defined approach and high resolution.
Journal ArticleDOI
Integrating photonics with silicon nanoelectronics for the next generation of systems on a chip.
Amir H. Atabaki,Sajjad Moazeni,Fabio Pavanello,Fabio Pavanello,Hayk Gevorgyan,Jelena Notaros,Jelena Notaros,Luca Alloatti,Luca Alloatti,Mark T. Wade,Chen Sun,Seth Kruger,Huaiyu Meng,Kenaish Al Qubaisi,Imbert Wang,Bohan Zhang,Anatol Khilo,Christopher Baiocco,Milos A. Popovic,Vladimir Stojanovic,Rajeev J. Ram +20 more
TL;DR: A way of integrating photonics with silicon nanoelectronics is described, using polycrystalline silicon on glass islands alongside transistors on bulk silicon complementary metal–oxide–semiconductor chips to address the demand for high-bandwidth optical interconnects in data centres and high-performance computing.
Journal ArticleDOI
Integrated microwave photonics
David Marpaung,David Marpaung,Chris G. H. Roeloffzen,Rene Gerrit Heideman,Arne Leinse,Salvador Sales,José Capmany +6 more
TL;DR: This article reviews the recent advances in this emerging field which is dubbed as integrated microwave photonics and key integrated MWP technologies are reviewed and the prospective of the field is discussed.
Journal ArticleDOI
Ultralow-noise mode-locked fiber lasers and frequency combs: principles, status, and applications
Jungwon Kim,Youjian Song +1 more
TL;DR: It is reached the point where the residual carrier–envelope-offset phase jitter and pulse timing jitter performance of such laser sources can be fully optimized to the unprecedented levels of attoseconds regime.
Journal ArticleDOI
Advances in High-Speed DACs, ADCs, and DSP for Optical Coherent Transceivers
TL;DR: In this article, analog-to-digital and digital-toanalog converters (ADCs and DACs), as well as digital signal processing (DSP) functions for optical coherent modems are examined.
References
More filters
Journal ArticleDOI
Silicon optical modulators
TL;DR: The techniques that have, and will, be used to implement silicon optical modulators, as well as the outlook for these devices, and the candidate solutions of the future are discussed.
Journal ArticleDOI
Recent developments in compact ultrafast lasers
TL;DR: Semiconductor lasers for optical pumping and fast optical saturable absorbers, based on either semiconductor devices or the optical nonlinear Kerr effect, have dramatically improved these lasers and opened up new frontiers for applications with extremely short temporal resolution, extremely high peak optical intensities and extremely fast pulse repetition rates.
Journal ArticleDOI
High-performance Ge-on-Si photodetectors
TL;DR: In this article, the authors summarized the major developments in Ge-on-Si photodetectors, including epitaxial growth and strain engineering, free-space and waveguide-integrated devices, as well as recent progress in Geon-On-Si avalanche photodets.
Characterization of the noise continuously operating mode-locked lasers
TL;DR: In this paper, an experimental and theoretical investigation of the fluctuations of the pulses from continuous-wave mode-locked lasers is presented, and it is shown that these fluctuations can be detected and quantitatively characterized from measurements of the power spectrum of the light intensity.
Journal ArticleDOI
Characterization of the noise in continuously operating mode-locked lasers
TL;DR: In this article, an experimental and theoretical investigation of the fluctuations of the pulses from continuous-wave mode-locked lasers is presented, and it is shown that these fluctuations can be detected and quantitatively characterized from measurements of the power spectrum of the light intensity.