Coexistence of 5G With the Incumbents in the 28 and 70 GHz Bands

  • Bechta K.
  • Dietrich C.
  • Ghosh A.
  • Kim S.
  • Moorut P.
  • Visotsky E.

A promising way of realizing the fifth generation (5G) wireless systems is to operate 5G deployments at higher frequency bands, specifically in the millimeter-wave (mmW) spectrum (30â?"300 GHz). Access to such spectrum bands will enable future 5G wireless systems to meet the 5G requirements of peak rate greater than 10 ...

Efficient Fast-Convolution-Based Waveform Processing for 5G Physical Layer

  • Levanen T.
  • Pajukoski K.
  • Pirskanen J.
  • Renfors M.
  • Valkama M.
  • Valkonen S.
  • Yli-Kaakinen J.

This paper investigates the application of fast-convolution (FC) filtering schemes for flexible and effective waveform generation and processing in the fifth generation (5G) systems. FC-based filtering is presented as a generic multimode waveform processing engine while, following the progress of 5G new radio standardization in the Third-Generation Partnership Project, the ...

10G PON Technology Evolution

  • Cheng G.

This article first goes through the different ITU-T standards of 10G PON with relevant definition of wavelengths. Particularly this article shares the view of the latest XGS-PON standard, including its Transmission Convergence sub-layer and Physical Medium Dependent sub-layer, compatibility design with current PON approach and migration solution. This article also ...


  • Benjebbour A.
  • Bulakci Ömer
  • Mezzavilla M.
  • Pedersen K.
  • Prasad A.
  • Pratas N.

Anomaly detection and classification using a metric for determining the significance of failures Case study: mobile network management data from LTE network

  • Hatonen K.
  • Jerome R.

Big data analytics and machine learning applications are often used to detect and classify anomalous behaviour in telecom network measurement data. The accuracy of findings during the analysis phase greatly depends on the quality of the training dataset. If the training dataset contains data from network elements (NEs) with high ...

Experimented phase noise limitations in directly-detected single side-band optical OFDM systems

  • Boffi P.
  • Gatto A.
  • Magarini M.
  • Mandelli S.
  • Martelli P.
  • Morosi J.

We experimentally evaluate the impact of realistic phase noise on single side-band optical OFDM systems, directly detected after uncompensated propagation. Measures obtained with sources typical of short-medium reach applications are compared to a semi-analytical model.

Ultra-low DMG multimode EDFA

  • Chen H.
  • Correa A.
  • Correa R.
  • Eznaveh Z.
  • Fontaine N.
  • Gonnet C.
  • Huang B.
  • Li G.
  • Lopez J.
  • Ryf R.
  • Schulzgen A.
  • Sillard P.
  • Zacarias J.

We demonstrate amplification in a multimode cladding-pumped fiber amplifier supporting 36 spatial modes. Using a large core EDF, we obtain <0.5dB differential modal gain, 16dB gain, and 25dBm output power across the C-band.

40 Gbps PON with 23 dB power budget using 10 Gbps optics and DMT

  • Chow H.
  • Houtsma V.
  • Lee J.
  • Qin C.
  • Van Veen D.
  • Vetter P.

We investigate a symmetrical 40 Gbps PON using 10-Gbps class optical components. We demonstrate transmission at 40 Gbps, with 23-dB power budget and 4.6·10â?'3 BER after 10-km SSMF transmission using discrete multitone IM-DD.

32QAM WDM transmission using a quantum-dash passively mode-locked laser with resonant feedback

  • Aubin G.
  • Brenot R.
  • Calo C.
  • Freude W.
  • Kemal J.
  • Koos C.
  • Lelarge F.
  • Marin-Palomo P.
  • Merghem K.
  • Ramdane A.
  • Randel S.

We demonstrate coherent WDM transmission using a quantum-dash mode-locked laser diode with resonant feedback. We report a line rate of 12 Tbit/s (32QAM 60×20 GBd PDM) over 75 km SMF. The spectral efficiency is 7.5 bit/s/Hz.

Record 6dBm electroabsorption modulated laser for 10Gb/s and 25Gb/s high power budget access networks

  • Achouche M.
  • Barbet S.
  • Blache F.
  • Brenot R.
  • Caillaud C.
  • Debregeas H.
  • Derouin E.
  • Drisse O.
  • Duval B.
  • Fortin C.
  • Garreau A.
  • Gentner J.
  • Glastre G.
  • Goix M.
  • Lanteri D.
  • Lelarge F.
  • Martin F.
  • Mekhazni K.
  • Moustapha-Rabault Y.
  • Nguyen T.
  • Paret J.
  • Pommereau F.
  • Provost J.
  • Saturnin B.

We present an electro-absorption modulated laser with 6dBm modulated power leading to record power budget NRZ transmissions at 1.55μm: 37dB at 10Gb/s over 50km and 30dB at 28Gb/s over 10km with a pre-amplified photodiode.

Experimental characterization of submarine ""open cable"" using Gaussian-noise model and OSNRwet parameter

  • Courtois O.
  • Dubost S.
  • Dupont S.
  • Letellier V
  • Pecci P.
  • Ruggeri S.

With the coherent era, a new parameter called OSNRwet is experimentally studied for ""open cable"" characterization. A +/+0.3dB maximum deviation from the average is found for 3 modulation formats, 3 channel spacings and 3 distances.

Athermal operation of a multi-section laser for optical communications

  • Bello F.
  • Donegan J.
  • Enright R.
  • M-J-Wallace
  • Meehan R.

Two distinct athermal bias current control procedures are demonstrated for a low-cost, monolithic, three section slotted single mode laser, achieving wavelength stability of ±0.01 nm over a temperature range of 10â?"85°C. This is the first time that athermal performance has been demonstrated for a three-section slotted laser with simple fabrication, ...

Distributed rate-adaptive staircase codes for connectionless optical metro networks

  • Gebhard U.
  • Schmalen L.
  • Zhang L.

We demonstrate a multipoint-to-point network architecture for optical metro networks with distributed FEC encoding based on modified staircase codes. We present a simple rate-adaptation scheme and demonstrate throughput maximization on the network.

Spectral efficiency estimation in periodic nonlinear Fourier transform based communication systems

  • Kamalian M.
  • Le S.
  • Prilepsky J.
  • Turitsyn S.

We evaluate, for the first time, the achievable spectral efficiency of periodic nonlinear Fourier transform based communication systems with hard decision FEC and modulated perturbed plane waves with high order QAM formats, e.g 32QAM-512QAM.

24 Tb/s unrepeatered C-band transmission of real-time processed 200 Gb/s PDM-16-QAM over 349 km

  • Bastide C.
  • Bissessur H.
  • Dupont S.
  • Etienne S.

We present a record unrepeatered experiment with 120 PDM-16-QAM channels at 200 Gb/s over 349.2 km, applying a high-power booster and a ROPA with third-order Raman pumping from the receiver end.

Nonlinear mitigation using probabilistically shaped real-valued modulation formats

  • Buchali F.
  • Eriksson T.
  • Schmalen L.

We experimentally demonstrate probabilistically-shaped modulation formats with increased spectral efficiency and nonlinear mitigation capabilities compared to phase-conjugated twin-waves QPSK at 54.2 Gbaud, yielding 21 % increased reach.

Experimental analysis of the modal evolution in photonic lanterns

  • Alvarado-Zacarias J.
  • Antonio-Lopez J.
  • Chen H.
  • Correa R.
  • Eznaveh Z.
  • Fontaine N.
  • Huang B.
  • Ryf R.

We experimentally analyze the modal evolution in a 10 mode-selective photonic lantern along the tapered transition using a swept-wavelength interferometer. Mode conversion to HOMs occurs closer to the beginning of the photonic lantern taper.

Trans-Atlantic field trial using probabilistically shaped 64-QAM at high spectral efficiencies and single-carrier real-time 250-Gb/s 16-QAM

  • Adamiecki A.
  • Burrows E.
  • Chandrasekhar S.
  • Chen X.
  • Cho J.
  • Correa D.
  • Corteselli S.
  • Dar R.
  • Grubb S.
  • Mckay B.
  • Pan Y.
  • Raybon G.
  • Schmalen L.
  • Winzer P.
  • Zsigmond S.

We transmitted probabilistically shaped 64-QAM at 7.46 b/s/Hz over a 5,523-km inservice EDFA-only amplified trans-Atlantic cable (5.68 b/s/Hz over a looped-back 11,046 km). Using real-time processing we achieve single-carrier 250-Gb/s 16-QAM at 4 b/s/Hz.

Mode-dependent gain characterization of erbium-doped multimode fiber using C2 imaging

  • Alvarado J.
  • Amezcua Correa R.
  • Chen H.
  • Eznaveh Z.
  • Fontaine N.
  • Gonnet C.
  • Huang B.
  • Li G.
  • Lopez J.
  • Ryf R.
  • Schiilzgen A.
  • Sillard P.

We characterize the mode profiles, delays and mode-dependent gains of an erbium-doped step-index multimode fiber using C2 imaging based on a swept-wavelength interferometer. Space-to-time mapping is used to reduce measurement time.

10-Mode photonic lanterns using low-index micro-structured drilling preforms

  • Alvarado-Zacarias J.
  • Amezcua Correa R.
  • Antonio-Lopez J.
  • Chen H.
  • Fontaine N.
  • Hayes J.
  • Huang B.
  • Li G.
  • Poletti F.
  • Ryf R.

We demonstrate low mode-dependent loss 10-mode photonic lanterns using low-index micro-structured drilling preforms. The adiabaticity requirement for lantern tapering can be alleviated by the proposed solution leading to improved performances.