Generation and Intradyne Detection of Single-Wavelength 1.61-Tb/s Using an All-Electronic Digital Band Interleaved Transmitter

We generate 100-GHz wide in-phase and quadrature electrical signals via two synchronized digital band interleaved digital-to-analog converters and demonstrate single-wavelength digital band multiplexed QAM with an aggregate all-electronically generated line rate of 1.61 Tb/s.

Weighted Filter Penalty Prediction for QoT Estimation

We experimentally show that noise distribution with regards to filters impacts the QoT by several dB. We thus propose a new QoT prediction method achieving up to 1.7dB margin reduction for links with high hop counts.

Bandwidth Efficient and Flexible 5G Fronthaul

This paper provides an overview of the numerous fronthaul interfaces specifications initiatives launched in several fora and SDO, and describes the main requirement on transport. Focus is given on Low layer interfaces, and massive MIMO.

Investigation of 100G (4×25G) NG-PON2 Upgrade using a Burst Mode Laser based on a Multi-Electrode Laser to enable 100 GHz Wavelength Grid

Investigation of NG-PON2 upgrade to 25 Gb/s line-rate on a 100 GHz grid using a burst-mode transmitter based on a multi-electrode DFB. Compliance with NG-PON2 MSE requirements is shown.

Optical Crosstalk Reduction using Amplified Spontaneous Emission (ASE)

We employ spectrally filtered amplified spontaneous emission as the signal carrier and matched local oscillator to mitigate optical crosstalk. We demonstrate polarization crosstalk reduction in single-mode fiber transmission and modal crosstalk reduction over multimode fiber.

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.