Kramers–Kronig coherent receiver
Antonio Mecozzi,Cristian Antonelli,Mark Shtaif +2 more
- Vol. 3, Iss: 11, pp 1220-1227
TLDR
This work proposes a direct-detection coherent receiver that combines the advantages of coherent transmission and the cost-effectiveness of direct detection, and is more efficient in terms of spectral occupancy and energy consumption.Abstract:
The interest for short-reach links of the kind needed for inter-data-center communications has fueled in recent years the search for transmission schemes that are simultaneously highly performing and cost effective. In this work we propose a direct-detection coherent receiver that combines the advantages of coherent transmission and the cost-effectiveness of direct detection. The working principle of the proposed receiver is based on the famous Kramers–Kronig (KK) relations, and its implementation requires transmitting a continuous-wave signal at one edge of the information-carrying signal spectrum. The KK receiver scheme allows digital postcompensation of linear propagation impairments and, as compared to other existing solutions, is more efficient in terms of spectral occupancy and energy consumption.read more
Citations
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Fiber-optic transmission and networking: the previous 20 and the next 20 years [Invited]
TL;DR: Focusing on the optical transport and switching layer, aspects of large-scale spatial multiplexing, massive opto-electronic arrays and holistic optics-electronics-DSP integration, as well as optical node architectures for switching and multiplexed of spatial and spectral superchannels are covered.
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Digital Signal Processing for Short-Reach Optical Communications: A Review of Current Technologies and Future Trends
TL;DR: An overview of recent DSP developments for short-reach communications systems is presented and future trends are discussed.
Journal ArticleDOI
SSBI Mitigation and the Kramers–Kronig Scheme in Single-Sideband Direct-Detection Transmission With Receiver-Based Electronic Dispersion Compensation
Zhe Li,M. Sezer Erkilinc,Kai Shi,Eric Sillekens,Lidia Galdino,Benn C. Thomsen,Polina Bayvel,Robert I. Killey +7 more
TL;DR: In this paper, the performance of direct-detection transceivers employing electronic dispersion compensation combined with DSP-based receiver linearization techniques is assessed through experiments on a 4 × 112 Gb/s wavelength-division multiplexing direct detection single-sideband 16 quadratic-amplitude modulation Nyquist-subcarrier-modulation system operating at a net optical information spectral density of 2.8 b/s/Hz in transmission over standard single mode fiber links of up to 240 km.
Journal ArticleDOI
Kramers–Kronig Receivers for 100-km Datacenter Interconnects
Xi Chen,Cristian Antonelli,Sethumadhavan Chandrasekhar,Gregory Raybon,Antonio Mecozzi,Mark Shtaif,Peter J. Winzer +6 more
TL;DR: In this paper, the authors review experimental demonstrations of Kramers-Kronig (KK) based direct detection systems with high per-carrier interface rates, high spectral efficiencies, and ∼100-km reach.
Journal ArticleDOI
200 Gbps/Lane IM/DD Technologies for Short Reach Optical Interconnects
Xiaodan Pang,Weisheng Hu,Gunnar Jacobsen,Sergei Popov,Jiajia Chen,Oskars Ozolins,Rui Lin,Lu Zhang,Aleksejs Udalcovs,Lei Xue,Richard Schatz,Urban Westergren,Shilin Xiao +12 more
TL;DR: This article focuses on IM/DD transmissions, and provides an overview of recent research and development efforts on key enabling technologies for 200 Gbps per lane and beyond, and expects high-speed IM/ DD systems will remain advantageous in terms of system cost, power consumption, and footprint for short reach applications in the short- to mid- term perspective.
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