Transmitter-side Volterra Filtering for Increased Dispersion Tolerance in 56 Gbaud PAM-4 Systems

We experimentally demonstrate that a transmitter-side Volterra-based pre-distortion for 56 GBaud, PAM4 signal with receiver FFE outperforms receiver-side Volterra filtering and allows for 70% higher tolerance to chromatic-dispersion. Transmitter coefficients are computed without receiver feedback.

Record 560 Gb/s Single-Carrier and 850 Gb/s Dual-Carrier Transmission over Transoceanic Distances

We demonstrate record single-carrier 560-Gb/s over 6,600 km and 430-Gb/s transmission over 13,200 km, as well as dual-carrier 850-Gb/s over 6,600km, and 1-Tb/s over 3,960km, leveraging advanced DACs, wideband receiver, probabilistic shaping and nonlinear mitigation.

Frequency-Resolved Measurements of Signal, Noise, and Signal-Signal Beat Interference in Self-Coherent Direct-Detection Receivers

We demonstrate a novel measurement technique that uniquely identifies the power spectral densities of signal, signal-signal-beat interference, and noise in direct-detection receivers.

25G Based PON Technology

Commercial PONs have traditionally leveraged mature components from transport systems. Starting with 25G PON, the data center ecosystem will be leveraged. A strategy to accommodate higher loss budgets at lower cost is presented.

180-GBaud All-ETDM Single-Carrier Polarization Multiplexed QPSK Transmission over 4480 km

We demonstrate PDM-QPSK transmission over 4480 km at a record all-electronically multiplexed symbol rate of 180 GBaud, providing a line rate of 720 Gb/s on a single optical carrier enabled by high-speed InP-DHBT selectors.

Pump Mode Characterization of Annular Cladding Erbium-Doped Fibers Using Low-Coherence Interferometry

We characterize core and cladding pump modes of annular cladding 6-core 3-mode erbium-doped fibers using low-coherence interferometry (LCI). Efficient mode conversion at pump wavelength for modal gain equalization is also demonstrated and characterized by LCI.

204-GBaud On-Off Keying Transmitter for Inter-Data Center Communications

We demonstrate an on-off keyed transmitter with direct detection, at record symbol rates of 204Gbaud and 140Gbaud, over 10km and 80km, respectively, powered by a high-speed InP-based 2:1 selector and travelling-wave electro-absorption laser-modulator.

Experimental Demonstration of Fully Disaggregated White Box Including Different Types of Transponders and Monitors, Controlled by NETCONF and YANG

We experimentally demonstrated a fully disaggregated white box composed of two different types of transponders, monitors (including filtering effect parameters), add-drop multiplexers, and switches. NETCONF and YANG control the hardware.

Ultra-High Bandwidth Integrated Lithium Niobate Modulators with Record-Low V<inf>&#x03C0;</inf>

  • Bertrand M.
  • Chen X.
  • Marko Lon?Ar
  • Sethumadhavan C.
  • Shams-Ansari A.
  • Wang C.
  • Winzer P.
  • Zhang M.

We demonstrate integrated lithium niobate electro-optic modulators with up to 100-GHz electro-optic bandwidth and V<sub>&#x03C0;</sub> as low as 1.4 V. We show 70 GBaud and 100 GBaud m-ASK modulation with the fabricated modulator.

Density Decompositions of Networks

  • Borradaile G.
  • Migler T.
  • Wilfong G.

We introduce a new topological descriptor of a network called the density decomposition which is a partition of the nodes of a network into regions of uniform density. The decomposition we define is unique in the sense that a given network has exactly one density decomposition. The number of nodes ...

3GPP LTE-WLAN Aggregation Technologies: Functionalities and Performance Comparison

  • Henttonen T.
  • Laselva D.
  • Lopez-Perez D.
  • Rinne M.

The use of license exempt bands offers a promising opportunity to additionally enhance operator networks to meet the future traffic demand. The recent specification efforts in 3GPP has resulted in two major aggregation features that enable Long Term Evolution (LTE) networks to benefit of unlicensed spectrum via Wireless Local Area ...

Error Awareness in a Multi-Layer Transport Network OS

  • Choi N.
  • Di Martino C.
  • Kim Y.
  • Narasimha Mohanasamy N.
  • Simsarian J.
  • Thottan M.
  • Winzer P.

Software-defined control with a network operating system combined with flexible-bitrate optical transponders allows near zero-margin operation of optical networks to "squeeze" as much capacity out of a link as possible. Since their inception, optical transport networks have been designed with the assumption that operational optical links must essentially be error ...

Record 204-GBd OOK IM-DD Transmission over 10km with EDFA Using InP Optoelectronics for Data Center Interconnects

  • Bigo S.
  • Chen Jiajia
  • Dupuy J.
  • Duval B.
  • Estaran Tolosa J.
  • Jorge F.
  • Konczykowska A.
  • Mardoyan H.
  • Nodjiadjim V.
  • Ozolins Oskars
  • Pang Xiaodan
  • Popov Sergei
  • Riet M.
  • Udalcovs Aleksejs
  • Westergren Urban

We demonstrate on an ultra-high-speed 204-GBd OOK-base IM/DD optical transceiver until 10km SSMF with optical amplifier. This record is based on two main InP Optoelectronics technologies: 2:1-Selector and externally modulated laser for electrical signal generation.

Error awareness in a multi-layer transport network operating system

Software-defined control based on a network operating system combined with flexible-bitrate optical transponders allows near zero-margin operation of optical networks to ""squeeze"" as much capacity out of a link as possible. Since their inception, optical transport networks have been designed with the assumption that operational optical links must essentially be ...

Marginless optical networking with machine learning

  • Pointurier Y.

Panel presentation at OFC 2018.

3GPP LTE-WLAN Aggregation Technologies: Functionalities and Their Performance Comparison

  • Henttonen T.
  • Laselva D.
  • Lopez-Perez D.
  • Rinne M.

The use of license exempt bands offers a promising opportunity to additionally enhance operator networks to meet the future traffic demand. The recent specification efforts in 3GPP has resulted in two major aggregation features that enable Long Term Evolution (LTE) networks to benefit of unlicensed spectrum via Wireless Local Area ...

Small Transactions with Sustainable Incentives

  • Pianese F.
  • Sarkar S.
  • Signorini M.

The design of a successful distributed system for enabling payments and small transactions among Internet users has long been a major challenge in applied computer science. Bitcoin, the first cryptocurrency having reached world-wide popularity, suffers from sustainability problems such as inefficient energy expenditure for its network operation and from perverse ...

Person Recognition Beyond The Visible Spectrum: Combining Body Shape and Texture from mmW images

  • Fierrez J.
  • Gonzalez E.
  • Gonzalez-Sosa E.
  • Patel V.
  • Vera-Rodriguez R.

Biometrics have been tradittionally based on images acquired in the visible spectrum. In this paper, we will go first into details regarding the regions beyond the visible spectrum that have been already explored in the literature for biometrics to overcome some of the limitations found in the visible region. Later, ...

Model-free resource management of cloud-based applications using reinforcement learning

The digital system of the future will face the growing challenge of controlling the system behavior in complex dynamically evolving environments. In this paper, we examine the applicability of a new management paradigm based on Reinforcement Learning approach, where no preliminary specification of the system model is required. In contrast, ...

A big switch abstraction to support service function chaining in cloud infrastructure

The concept of Service Function Chaining and Network Functions Virtualisation provides a great degree of flexibility for the rapid deployment of new services in service providers' environments. Data model, metadata and descriptors for virtual network function elements, virtual links, connection points, Virtual Network Function Forwarding Graphs and Network Forwarding paths ...