We demonstrate a mode selective photonic lantern with a graded index core, which modes are a better match when splicing to graded index transmission fiber compare to those from a photonic lantern with step index core.
We present pilot-assisted burst mode DSP design for high-order QAM signals. Short preambles are used for frame, frequency synchronization and channel estimation. The proposed scheme is experimentally demonstrated to detect 16G-baud PDM 128/256/512-QAM bursts.
We transmit 381Ã24.5 Gbaud PDM-64-QAM modulated channels per mode of a 30 km graded-index three-mode fiber, resulting in a record per-mode data-rate of 93.34 TBit/s and an aggregated net-data-rate of 280 Tbit/s.
10Gb/s Low-Cost Directly Modulated Multi-Electrode Laser with Suppressed Thermal Wavelength Drift for Burst-Mode Upstream Transmission in TWDM-PONs
We report on a novel 10Gb/s low-cost multi-electrode DML employed as a very wavelength stable burst-mode source for upstream TWDM-PONs. 10X wavelength drift reduction is achieved compared to conventional DMLs enabling transmission on 100GHz grid.
We experimentally demonstrate an actively-filtered receiver for TDM-PON. Bias-current tuning of a DFB-based-filter enables tracking the wavelength-drift of DML under burst-mode operation. We measure >70% reach increase, >5dB sensitivity improvement, and 4.8dB higher extinction ratio.
We have designed a novel convolutional neural network based nonlinear classifier that outperforms traditional Volterra nonlinear equalizers. A BER of 3.50 Ã 10-6 is obtained for a 112-Gbps PAM4 EML-based optical link over 40-km SMF transmission.
Software-defined network management systems presently lack joint link-status awareness on both packet and optical layers. Using a NOS with cross-layer link awareness, we demonstrate faster service restoration of packet links over failed optical links.
We report a 6-core coupled-core fiber amplifier compatible with 6-mode FMF. The coupled-core amplifier not only reduces mode dependent gain but also introduces strong random mode mixing, thus easing mode dependent impairments in FMF transmission systems.
We designed an ultra-fast real-time bandwidth-variable transmitter achieving zeropacket loss with â¼10Î¼s switching time, â¼40Ã faster than previous record. We use a new coding scheme to generate baud rates and measure reconfiguration through SDN control.
1. Network traffic growth remains strong Sold WDM transponder capacity scales at â¼45% Scaling is widely supported by compute, storage, access scaling Optical transport is significantly falling behind â Worrisome scaling disparities (âCapacity Crunchâ) 2. Parallelism is mandatory log(SNR) scaling vs. linear (pre-log) multiplexing gains 3. By 2025 we will ...
This presentation reviews the operation principles and various implementations of the Kramers-Kronig (KK) receiver. We show that the KK scheme offers new ways of considering the process of data transmission and reception, with respect to the use of the spectral and polarization degrees of freedom. Some of the recently published ...
- Bertrand M.
- Chen X.
- Loncar M.
- 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 Vpi as low as 1.4 V. We show 70 GBaud and 100 GBuad m-ASK modulation with the fabricated modulator.
- Cho J.
We review probabilistic shaping (PS) and forward error correction (FEC) and study the interplay between the two to jointly maximize the overall information rate.
- Bonk R.
SOA applicability to provide up to 35 dB power budget for high-rate T(W)DM-PON is analyzed. Booster and pre-amplifier in PON-applications will have utmost importance in 50 Gbit/s/wavelength IM-DD and could also be applied in coherent access solutions.
- Agrawal G.
- Buch S.
- Essiambre R.
- Mumtaz S.
- Tulino A.
We derive expressions that enable the study of the impact of arbitrary levels of linear coupling between spatial modes on nonlinear propagation in space-division multiplexed transmission systems, valid for both multimode and coupled-core fibers.
Using Raman Gain to Offset Excess Losses of an Intelligent Optical Distribution Network in a TWDM PON
- Iannone P.
- Straub M.
We use bi-directional distributed Raman amplification to offset the excess losses of an intelligent splitter module. We demonstrate this technique in a 42-km, 1:32 split, TWDM PON.
- Delezoide C.
- Kostas Christodoulopoulos
- Nicola Sambo
We experimentally demonstrate a self-healing network using monitoring information to reconfigure faulty links through SDN
- Achouche M.
- Bonk R.
- Borkowski R.
- Debregeas H.
- Pfeiffer T.
Emerging access networks raise the need for specific components. We present a counter-heating method for wavelength stabilisation in NGPON2 TWDM-PON systems. Then we present a +6dBm high-power externally modulated laser at 10Gb/s and 28Gb/s for XGS-PON or 25G-EPON systems.
31.2-Tb/s real time bidirectional transmission of 78x400 Gb/s interleaved channels over C band of one 90-km SMF span
- Bertran Pardo O.
- David J.
- Faure J.
- Lavigne B.
- Le Monnier M.
- Weisser S.
- Zami T.
We transmit 78x400Gb/s PDM-64QAM 50GHz-spaced channels over one 90-km SSMF span with real time transponder, transporting 31.2 Tb/s with 8 bit/s/Hz spectral efficiency
- Alvarado-Zacarias J.
- Alvarez-Aguirre R.
- Amezcua Correa R.
- Chen H.
- Essiambre R.
- Fontaine N.
- Koonen T.
- Okonkwo C.
- Ryf R.
- Van Weerdenburg J.
We use white Gaussian noise as a test signal for single-mode and multimode transmission links and estimate the link capacity based on a calculation of mutual information. We also extract the complex amplitude channel estimations and mode-dependent loss with high accuracy.