bluuebunny/crossref_metadata_2025 huggingface dataset:
A Transition Metric in Polar Co-ordinates for MLSE of a Complex Modulated DML
Authors: Sales-Llopis Martí , Savory Seb J.
Published: March 2020

We propose a metric for MLSE-Viterbi differential decoding of complex modulation of directly modulated lasers (CM-DML) that reports SNR gains of 1.8 dB at BER=10
−
3 on a simulated PAM4 signal with a typical linewidth enhancement factor α = 4
Collaborative Routing in Partially-Trusted Relay based Quantum Key Distribution Optical Networks
Authors: Zou Xingyu , Yu Xiaosong , Zhao Yongli , Nag Avishek , Zhang Jie
Published: March 2020

This paper proposes a collaborative routing scheme in partially-trusted relay based quantum key distribution optical networks. Simulation results show it achieves good performance in terms of key distribution success rate.
Hands-on Demonstration of Open-Source Filterless-Aware Offline Planning and Analysis Tool for WDM Networks
Authors: Pavon-Marino P. , Garrich M. , Moreno-Muro F. J. , Quagliotti M. , Riccardi E. , Rafel A. , Lord A.
Published: March 2020

We demonstrate an open-source filterless-aware multilayer WDM-network planning tool, that allows hands-on creation of mixed filterless/ed topologies and the application of built-in or user-developed algorithms and analysis tools for line engineering, spectrum and cost planning.
Photonic Generation of Quantum Noise Assisted Cipher at Microwave Frequencies for Secure Wireless Links
Authors: Tanizawa Ken , Futami Fumio
Published: March 2020

We propose novel wireless physical layer encryption utilizing signal masking by truly random quantum noise. 12-Gbit/s cipher with sufficient masking is generated in 30-GHz band by optical heterodyne, and secure microwave wireless transmission is achieved.
Progress on Quantum Key Distribution Using Ultralow Loss Fiber
Authors: Boaron Alberto , Rusca Davide , Boso Gianluca , Houlmann Raphael , Grünenfelder Fadri , Vulliez Cédric , Caloz Misael , Perrenoud Matthieu , Gras Gaetan , Autebert Claire , Bussières Félix , Li Ming-Jun , Nolan Daniel , Martin Anthony , Zbinden Hugo
Published: March 2020

We use a 2.5 GHz clocked quantum key distribution system to perform long-distance and high-speed quantum key distribution. Taking benefit from superconducting detectors optimized for each operation regime and low-loss fiber, we achieve state-of-the-art performance.
Neural Network Training for OSNR Estimation From Prototype to Product
Authors: Shiner Andrew D. , Mousa-Pasandi Mohammad E , Qiu Meng , Reimer Michael A. , Park Eui Young , Hubbard Michael , Zhuge Qunbi , Vaquero Caballero Francisco J. , O’Sullivan Maurice
Published: March 2020

A method for in-service OSNR measurement with a coherent transceiver is presented and experimentally verified. A neural network is employed to identify and remove the nonlinear noise contribution to the estimated OSNR.
Novel Optical Field Reconstruction for IM/DD with Receiver Bandwidth Well Below Full Optical Signal Bandwidth
Authors: Hu Qian , Borkowski Robert , Chagnon Mathieu , Schuh Karsten , Buchali Fred , Bülow Henning
Published: March 2020

We propose a novel signal reception scheme for IM/DD enabling optical field reconstruction. We experimentally demonstrate 60-GBd PAM-4 transmission over 80-km without active and passive optical managements, with 33-GHz electrical bandwidth at transmitter and receiver.
160-Gb/s Nyquist PAM-4 Transmission with GeSi-EAM Using Artificial Neural Network Based Nonlinear Equalization
Authors: Zhang Lei , Yang Fan , Ming Hao , Zhu Yixiao , Ruan Xiaoke , Li Yanping , Zhang Fan
Published: March 2020

We experimentally demonstrate optical interconnects of PAM-4 signal with a single lane bit rate of 160Gb/s generated by a compact silicon based GeSi electro-absorption modulator using artificial neural network based nonlinear equalization.
Radio-over-Fiber Technology: Present and Future
Authors: Lim Christina , Nirmalathas Ampalavanapillai
Published: March 2020

This paper reviews the recent research in the area of radio-over-fiber technology focusing on physical layer investigations and demonstrations, and also provides a brief discussion on the future outlook.
A Broadly Tunable Noise Radar Transceiver on a Silicon Photonic Chip
Authors: Onori Daniel , Azaña José
Published: March 2020

We experimentally demonstrate the first on-chip broadly-tunable noise radar transceiver, using silicon photonic technology. By exploiting an innovative and simple lasers’ noise referencing architecture, the device shows reconfigurable operation in the range 0.5-35GHz, with antennas-remoting capability.
Dual-Wavelength Integrated K-band Multi-Beamformer operating over 1-km 7-core Multicore Fiber
Authors: Morant Maria , Trinidad Ailee , Tangdiongga Eduward , Koonen Ton , Llorente Roberto
Published: March 2020

A dual-wavelength broadband photonic integrated beamformer over 1-km MCF provides independent angles with up to 350 ps increment to 3-GHz or 260 ps to 4-GHz BW signals over two different wavelengths and K-band frequencies.
Integrable Magnetless Thin Film Waveguide Optical Isolator based on Bismuth Iron Garnet Material
Authors: Stenger V. , Karki D. , Pollick A. , Levy M.
Published: March 2020

A passive magnetless integrated optic Faraday isolator has been demonstrated that features ~3 dB total insertion loss and 25 dB isolation. The compact 500 μm long ridge waveguide isolator is integrable with silicon photonic platforms.
850 nm single-mode surface-emitting DFB lasers with surface grating and large-area oxidized-aperture
Authors: Liu Can , Zhang Pengfei , Xiang Minwen , Ma Xiang , Jiang Chun , Liu Gonghai , Chen Quanan , Tang Bao , Lu Qiaoyin , Guo Weihua
Published: March 2020

850 nm single-mode surface-emitting DFB laser based on surface gratings has achieved a threshold current of 1.8 mA and a side-mode suppression-ratio of 47 dB for a large-area oxidized-aperture (2×50 µm2).
Evolution to Mesh 5G X-Haul Networks
Authors: Yu Jiakai , Zhu Shengxiang , Kilper Daniel
Published: March 2020

Development of optical x-haul networks is driven by 5G wireless radio requirements. The potential of a mesh optical x-haul architecture merging WDM-PON and DWDM-ROADM networks is examined with respect to 5G requirements in metropolitan networks.
400G Silicon Photonics Integrated Circuit Transceiver Chipsets for CPO, OBO, and Pluggable Modules
Authors: Timurdogan Erman , Su Zhan , Shiue Ren-Jye , Byrd Matthew J. , Poulton Christopher V. , Jabon Kenneth , DeRose Christopher , Moss Benjamin R. , Hosseini Ehsan S. , Duzevik Ivan , Whitson Michael , Millman Ronald P. , Atlas Dogan A. , Watts Michael R.
Published: March 2020

400G-FR4 silicon photonics transmit-receive chipsets, compatible with co-packaged-optics, on-board-optics, and pluggable form factors, were demonstrated with a combined bandwidth density of 94Gb/s/mm, energy efficiency of <10pJ/bit, and -5.4dBm OMA sensitivity at the KP4 pre-FEC-BER=2.4e-4.
Real-Time Demonstration of Silicon-Photonics-Based QSFP-DD 400GBASE-DR4 Transceivers for Datacenter Applications
Authors: Xie Chongjin , Magill Peter , Li David , Zhang Yinxing , Zheng Long , Wang Anbin , Bao Yun , Sui Chunchun , Streshinsky Matthew , Mu Jianwei , Yang Sigeng , Sun Wanju
Published: March 2020

We demonstrate a real-time silicon-photonics-based 400GBASE-DR4 transceiver packaged in a QSFP-DD form factor. The performance of the transmitter including TDECQ, extinction ratio and OMA and receiver sensitivity are measured, all satisfying IEEE 400GBASE-DR4 specifications.
400Gbps Fully Integrated DR4 Silicon Photonics Transmitter for Data Center Applications
Authors: Yu Haijiang , Doussiere Pierre , Patel David , Lin Wenhua , Al-hemyari Kadhair , Park Jung , Jan Catherine , Herrick Robert , Hoshino Isako , Busselle Lincoln , Bresnehan Michael , Bowles Adam , Ghiurcan George A. , Frish Harel , Yerkes Shane , Venables Ranju , Seddighian Pegah , Serey Xavier , Nguyen Kimchau , Banerjee Animesh , Asl Siamak Amiralizadeh , Zhu Qing , Gupta Sushant , Fuerst Avi , Dahal Avsar , Chen Jian , Malinge Yann , Mahalingam Hari , Kwon Mike , Gupta Sanjeev , Agrawal Ankur , Narayan Raghuram , Favaro Michael , Zhu Daniel , Akulova Yuliya
Published: March 2020

A 400Gbps PAM-4 fully integrated DR4 silicon photonics transmitter with four heterogeneously integrated DFB lasers has been demonstrated for data center applications over a temperature range of 0~70°C and a reach of up to 2km
A Fully Integrated 25 Gb/s Si Ring Modulator Transmitter with a Temperature Controller
Authors: Kim Minkyu , Kim Min-Hyeong , Jo Youngkwan , Kim Hyun-Kyu , Lischke Stefan , Mai Christian , Zimmermann Lars , Choi Woo-Young
Published: March 2020

We realized a fully integrated 25Gb/s Si ring modulator transmitter containing a temperature controller that guarantees the optimal ring modulator temperature against any temperature perturbation. The transmitter is implemented with a 0.25-μm photonic BiCMOS technology.
O-Band 10-km Transmission of 93-Gbaud PAM4 Signal Using Spectral Shaping Technique Based on Nonlinear Differential Coding with 1-Tap Precoding
Authors: Yamamoto Shuto , Taniguchi Hiroki , Nakamura Masanori , Kisaka Yoshiaki
Published: March 2020

We propose a simple and flexible spectral shaping technique based on nonlinear differential coding for short-reach IM-DD transmission. Experimental results show the achievement of 7% HD-FEC threshold in 186-Gb/s 10-km transmission with 14-GHz bandwidth limitation.
Supporting Low-Latency Service Migration in 5G Transport Networks
Authors: Li Jun , Chen Jiajia
Published: March 2020

This paper concentrates on low-latency service migration in transport networks, where edge computing is employed for ultra-low end-to-end latency communications in 5G, and demonstrates that rapid service migration significantly reduces end-to-end packet delay.
Intent Defined Optical Network: Toward Artificial Intelligence-Based Optical Network Automation
Authors: Zhan Kaixuan , Yang Hui , Yao Qiuyan , Zhao Xudong , Yu Ao , Zhang Jie , Lee Young
Published: March 2020

Toward AI-based optical network automated operation, we propose an intent defined optical network (IDON) architecture with self-adapted generation and optimization (SAGO) policy. The feasibility and efficiency are verified on the enhanced SDN testbed.
VCSELs for fast neuromorphic photonic systems operating at GHz rates
Authors: Hejda Matěj , Robertson Joshua , Bueno Julián , Hurtado Antonio
Published: March 2020

We report experimentally on VCSEL-based artificial optical spiking neurons with ultrafast spiking refractory period; hence allowing operation at GHz rates. This feature is used to demonstrate all-optical digital-to-spiking information format conversion at 1.0 Gbps.
Transfer Learning Aided Neural Networks for Nonlinear Equalization in Short-Reach Direct Detection Systems
Authors: Xu Zhaopeng , Sun Chuanbowen , Ji Tonghui , Ji Honglin , Shieh William
Published: March 2020

Transfer learning-aided NNs are proposed for nonlinear equalization in a 50-Gb/s 20-km PAM4 link. About 90% reduction in epochs and 56% in training symbols are achieved with NNs transferred from the most similar source system.
Fixed-rate-breaking All-optical OFDM System using Time-domain Hybrid PAM with Sparse Subcarrier Multiplexing and Power-loading for Optical Short-reach Transmission
Authors: Kodama Takahiro , Maruta Akihiro , Wada Naoya , Cincotti Gabriella
Published: March 2020

All-optical TDHP-OFDM system with four-sparse-subcarrier-multiplexing and power-loading has been proposed for data-rate-adaptive transmission. 40-Gbit/s, 60-Gbit/s, and 80-Gbit/s can be selected by changing the ratio of PAM2 and PAM4, and all BERs achieve the FEC limit.
Automated Optical Waveguide Design Based on Wavefront Matching Method
Authors: Hashimoto Toshikazu
Published: March 2020

There are large degrees of freedom (DOF) in the design of micro-fabricated optical circuits. This paper introduces the wavefront matching method as an automated design technique of the DOF, and its applications.
Low-Bandwidth Sub-Nyquist A/D Conversion in Delay-Division Multiplexing OFDM PONs Enabled by Optical Shaping
Authors: Chen Wei-Lun , Yu Min , Yang Lu-Yi , Wei Chia-Chien , Lin Chun-Ting
Published: March 2020

Optical shaping is proposed to reduce the required analog bandwidth of low-sampling-rate A/D conversion in a DDM-OFDM-PON. It successfully enabled the detection of 7.5-GHz/28-Gb/s downstream using low-bandwidth (1.7 GHz) and sub-Nyquist-sampling (3.75 GS/s) A/D conversion.
Frequency-tunable parity-time-symmetric optoelectronic oscillator using a polarization-dependent Sagnac loop
Authors: Dai Zheng , Fan Zhiqiang , Li Cheng , Yao Jianping
Published: March 2020

A frequency-tunable parity-time-symmetric optoelectronic oscillator with a single physical loop is proposed. Frequency-tunable single-mode oscillation from 2 to 12 GHz and a phase noise of −108 dBc/Hz at an offset frequency of 10 kHz is achieved.
Added value of 90 GBaud transponders for WDM networks
Authors: Zami Thierry , Lavigne Bruno , Lefrançois Mathieu
Published: March 2020

We quantify the benefit of 90 GBaud transponders versus the more mature 67 GBaud ones to possibly improve the maximum total throughput in WDM networks and the associated amount of deployed equipment per transmitted Gb/s.
Simultaneous Detection of Anomaly Points and Fiber types in Multi-span Transmission Links Only by Receiver-side Digital Signal Processing
Authors: Sasai Takeo , Nakamura Masanori , Okamoto Seiji , Hamaoka Fukutaro , Yamamoto Shuto , Yamazaki Etsushi , Nishizawa Asuka Matsushita Hideki , Kisaka Yoshiaki
Published: March 2020

We experimentally demonstrate simultaneous localization of optical excess loss points and spans with different dispersion in multi-span fiber links using a neural-network based digital backpropagation.
Demonstration of Fault Localization in Optical Networks Based on Knowledge Graph and Graph Neural Network
Authors: Li Zhuotong , Zhao Yongli , Li Yajie , Rahman Sabidur , Yu Xiaosong , Zhang Jie
Published: March 2020

A fault localization method for optical networks using knowledge graph and graph neural network is proposed. Experimental demonstration shows that the proposed method is effective in automating the localizing of optical network faults.
Extreme Values in Optical Fiber Communication Systems
Authors: Savory Seb J.
Published: March 2020

Extreme value theory provides a framework to assess rare but extreme events such as network outages or cycle slips. We present the theory of extreme value statistics and its application to optical fiber communication systems. © 2020 The Author
Visible Light Communications for Automotive Intelligence
Authors: Yamazato Takaya
Published: March 2020

In this talk, the author looks back to the brief history of vehicle automation and related communication technologies. He then introduces visible light communication and its application for automotive intelligence.
Secure Free-Space Optical Communication via Amplified Spontaneous Emission (ASE)
Authors: Huang Hanzi , Chen Jian , Chen Haoshuo , Huang Yetian , Li Yingchun , Song Yingxiong , Fontaine Nicolas K. , Ryf Roland , Wang Min
Published: March 2020

We propose a secure free-space optical (FSO) communication scheme employing the internal randomness of amplified spontaneous emission. 60-Gbit/s FSO transmission is demonstrated with temporal and spectral encryption.
A high linear silicon Mach-Zehnder modulator by the dual-series architecture
Authors: Zhang Qiang , Yu Hui , Fu Zhilei , Xia Penghui , Wang Xiaofei
Published: March 2020

We experimentally demonstrate a highly linear dual-series silicon modulator by tuning properly the power splitting ratio of the driving RF signal on the its two sub-MZMs, with SFDR of 109.5/100.5 dB·Hz2/3 at 1/10 GHz.
Threshold plasticity of hybrid Si-VO2 microring resonators
Authors: Wang Zhi , Li Qiang , Fu Ziling , Katumba Andrew , Coarer Florian Denis-le , Rontani Damien , Sciamanna Marc , Bienstman Peter
Published: March 2020

We theoretically simulate the threshold plasticity of a high-Q-factor silicon-on-insulator microring resonator integrated with VO2. The proposed structure can perform excitatory and inhibitory learning by tuning the initial working condition.
Experimental Demonstration of Optical Multicast Packet Transmissions in Optical Packet/Circuit Integrated Networks
Authors: Hirota Yusuke , Xu Sugang , Shiraiwa Masaki , Awaji Yoshinari , Tornatore Massimo , Mukherjee Biswanath , Furukawa Hideaki , Wada Naoya
Published: March 2020

We develop an SDN-based control for optical-multicast packet transmission and experimentally demonstrate multicast functionality by validating it using an application-layer network service for efficient content duplication in Optical Packet/Circuit Integrated (OPCI) network.
Disruption-minimized Re-adaptation of Virtual Links in Elastic Optical Networks
Authors: Shahriar Nashid , Zulfiqar Mubeen , Chowdhury Shihabur Rahman , Taeb Sepehr , Tornatore Massimo , Boutaba Raouf , Mitra Jeebak , Hemmati Mahdi
Published: March 2020

We present a novel re-adaptation approach to accommodate bandwidth increase of virtual links in elastic optical networks. Our approach can incorporate different objectives, as minimizing disruption, by choosing among a comprehensive set of re-adaptation actions.
HeCSON: Heuristic for Configuration Selection in Optical Network Planning
Authors: Patri Sai Kireet , Autenrieth Achim , Rafique Danish , Elbers Jörg-Peter , Machuca Carmen Mas
Published: March 2020

We present a transceiver configuration selection heuristic combining Enhanced Gaussian Noise (EGN) models, which shows a 40% increase in throughput and 87% decrease in execution time, compared to only approximate EGN and Full-Form EGN respectively.
Hardware-Efficient ROADM Design with Fiber-Core Bypassing for WDM/SDM Networks
Authors: Liu Lida , Yan Shuangyi , Maguire Gerald Q. , Li Yanlong , Simeonidou Dimitra
Published: March 2020

A SDM/WDM ROADM is proposed with low port-count WSSs. Fiber-core bypassing reduces the number of and port-count of WSSs in the implementation. The design requires less hardware without compromising on network performance with the developed routing core and wavelength assignment algorithm.
Energy-efficient Coherent PON System with Access-span Length Difference between ONUs using Marginal IQ Power Loading in Downlink Transmission
Authors: Kodama Takahiro , Arai Kouki
Published: March 2020

2.7 dB power efficiency improvement consistent with theory was experimentally obtained by marginal IQ distorted QPSK signal with and DD-CPR in the case of the 57 km downlink access span length difference between two ONUs.
Nonlinear Tolerance Enhancement Based on Perturbation Theory for Optical Phase Conjugation Systems
Authors: Nguyen Tu T. , Harper Paul , Sunish Kumar O. S. , Ellis Andrew
Published: March 2020

We show more than 1 dB of additional SNR improvement by deploying perturbation-based nonlinearity DSP at the receiver side for 30 GBaud dual-polarization 16-QAM transmission over a 2560 km link with a mid-link optical phase conjugation.
The Impact of Nonlinear Phase Noise Induced from Low-speed Optical Supervisory Channel on Soft-Decision FEC Performance
Authors: Kawahara Hiroki , Saito Kohei , Seki Takeshi , Kawasaki Takeshi , Maeda Hideki
Published: March 2020

We numerically analyze the statistics of the nonlinear phase noise induced from a low-speed optical supervisory channel wavelength-multiplexed outside the EDFA amplification band and how it affects the behavior and performance of soft-decision FEC.
Demonstration of Low-Latency Coherent Optical Connectivity for Consolidated Inter-Hub Ring Architecture
Authors: Jia Zhensheng , Xu Mu , Zhang Junwen , Zhang Haipeng , Campos Luis Alberto , Knittle Curtis
Published: March 2020

Based on new design of consolidated inter-hub CDC architecture, end-to-end video delivery is demonstrated with 2-µs latency from multicast switch and 11µs from interoperable coherent muxponder, and full-duplex operation is also presented in such network.
Polarization-Diversity Microring-Based Optical Switch Fabric in a Switch-and-Select Architecture
Authors: Yang Hao , Cheng Qixiang , Chen Rui , Bergman Keren
Published: March 2020

We propose a polarization-diversity microring-based optical switch fabric in a switch-and-select architecture with polarization splitter-rotators. The first primitive 2×2 silicon device is demonstrated with polarization-dependent loss of <1.6 dB and inter-channel crosstalk of <−45 dB.
Direct Modulation of a 54-GHz Distributed Bragg Reflector Laser with 100-GBaud PAM-4 and 80-GBaud PAM-8
Authors: Che Di , Matsui Yasuhiro , Schatz Richard , Rodes Roberto , Khan Ferdous , Kwakernaak Martin , Sudo Tsurugi , Chandrasekhar S. , Cho Junho , Chen Xi , Winzer Peter
Published: March 2020

We demonstrate both 100-GBaud PAM-4 and 80-GBaud PAM-8 transmissions over 10-km fiber using a 1315-nm 54-GHz distributed Bragg reflector laser with a transient chirp parameter of 1.0. The 80-GBaud PAM-8 system achieves a net bit rate of 200 Gb/s.
Data Center Links Beyond 100 Gb/s per Wavelength
Authors: Kahn Joseph M. , Perin Jose Krause , Shastri Anujit
Published: March 2020

We review intra- and inter-data center link options, including those based on direct detection, digital or analog coherent detection, Stokes vector detection or Kramers-Kronig detection, comparing them in terms of spectral efficiency, optical power efficiency, complexity and power consumption.
Fast and High-Precision Optical Performance Evaluation for Cognitive Optical Networks
Authors: Morais Rui Manuel , Pereira Bruno , Pedro João
Published: March 2020

We propose a methodology for accurate and fast optical performance estimation exploiting cognitive awareness. It is composed by low and high precision estimators and a calibration engine, allowing to control open vs. proprietary implementations.
Modeling Filtering Penalties in ROADM-based Networks with Machine Learning for QoT Estimation
Authors: Mahajan Ankush , Christodoulopoulos Kostas , Martinez Ricardo , Spadaro Salvatore , Munoz Raul
Published: March 2020

Monitoring 3dB bandwidth and other spectrum related parameters at ROADMs provides information about quality of their filters. We propose a machine-learning model to estimate end-to-end filtering penalty for more accurate QoT estimation of future connections.
A Three-stage Training Framework for Customizing Link Models for Optical Networks
Authors: Liu Xiaomin , Lun Huazhi , Fu Mengfan , Fan Yunyun , Yi Lilin , Hu Weisheng , Zhuge Qunbi
Published: March 2020

We propose a link model customization framework to increase modeling accuracy for each specific link in an optical network. In addition, an active acquisition method is employed in this framework to improve tolerance to link parameter uncertainties.
A Novel Demodulation Method of Fiber Bragg Grating Sensor Array Based on Wavelength-to-time Mapping and Multiloop Optoelectronic Oscillator
Authors: Wang Wenxuan , Liu Yi , Du Xinwei , Yan Yaxi , Yu Changyuan , Chen Xiangfei
Published: March 2020

We propose a novel demodulation method of strong FBG sensor array based on wavelength-to-time mapping and multiloop OEO. The oscillating frequency shift caused by the time shift encodes measurable variation and location information.
Optical Connectivities for Multicore Fiber
Authors: Nagase Ryo
Published: March 2020

Multicore fiber is proposed for use in space-division multiplexing for ultra-wide-band optical transmission systems. This paper introduces recent progress on multicore fiber connection technologies for simplex and multifiber connectors.
High Durability Molded Lens Connector for SMFs
Authors: Nakama Akihiro , Asada Hirotaka , Nishimura Akito
Published: March 2020

We have achieved IL of <0.7dB and RL of >50dB in molded lens connector for single-mode fibers and confirmed its excellent durability, the maximum IL change is 0.06dB without cleaning during mating 250 times.
Low-Cost TI-ADC Timing Calibration Circuit
Authors: Faig Hananel , Cohen Shai , Gantz Liron , Sadot Dan
Published: March 2020

An efficient timing skew calibration of time-interleaved ADC (TI-ADC) for high-speed link is proposed and experimentally validated. The method is based on the CDR’s existing sub-blocks and enables flexible tradeoff of complexity versus performance.
Overturning the Eight Fallacies of Distributed Computing with the Octopus Edge Network
Authors: Bigo Sébastien
Published: March 2020

Named after the mollusk nervous system, the Octopus network is a sequel of low-latency ultra-reliable edge networks. Its dynamic and deterministic characteristics open a new era for distributed computing by breaking the notorious eight fallacies.
Vertical Optical Fiber Assembly on Silicon Photonic Chips Using 3D-Curved Silicon Waveguide Couplers
Authors: Sakakibara Y. , Kiriyama T. , Yoshida T. , Atsumi Y. , Omoda E. , Iwasaki K. , Kato T.
Published: March 2020

Using UV adhesive mixed with glass spacer beads, vertical surface connection of optical fibers to silicon photonic chips via elephant couplers was realized with wavelength and polarization insensitiveness at temperatures from -18.5°C to 90°C.
Design and Characterization of Arbitrary Filters with an Integrated Spiral Si3N4/SiO2 Waveguide
Authors: Hu Yiwen , Xie Shengjie , Zhan Jiahao , Zhang Yang , Veilleux Sylvain , Dagenais Mario
Published: March 2020

We report the optimization of reconstruction algorithm and experiment for an integrated arbitrary filter. A 43-notch filter near 1550 nm is implemented with an ultra-low-loss Si3N4/SiO2 spiral waveguide. All notches have uniform depths/widths of about 20 dB/0.2 nm.
Modeling the Breakdown in Degeneracy for High-Index-Contrast Ring Core Fiber
Authors: Banawan Mai , Wang Lixian , LaRochelle Sophie , Rusch Leslie A.
Published: March 2020

Our numerical model of elliptical deformation of ring cores uncovers distinctly different behaviors of lower and higher order OAM modes. Degeneracy of modes, across topological charge and polarization are laid bare in simulations.
168Gbps PAM-4 Multimode Fiber Transmission through 50m using 28GHz 850nm Multimode VCSELs
Authors: Lavrencik Justin , Varughese Siddharth , Ledentsov Nikolay , Chorchos Łukasz , Ledentsov Nikolay N. , Ralph Stephen E.
Published: March 2020

We experimentally demonstrate PAM-4 data rates beyond 160Gbps over 50m OM5 using unpackaged 850nm VCSELs. Power penalties of PAM-4 are examined demonstrating maximum data rates, with and without FEC, over 50m and 100m of fiber.
FOSphere: A Scalable and Modular Low Radix Fast Optical Switch Based Data Center Network
Authors: Yan Fulong , Kahan Elham , Guo Xiaotao , Wang Fu , Pan Bitao , Xue Xuwei , Zhang Shaojuan , Calabretta Nicola
Published: March 2020

We propose a novel scalable and modular low-radix fast optical switch based DCN with sphere topology (FOSphere). Numerical analyses on 10880-server indicates that FOSphere achieves 4.1 μs server-to-server latency and 2.6E-3 packet loss at load 0.4.
C-band PS 4096QAM OFDM FSO Transmission with 6.98bit/s/Hz Net SE Based on Kramers-Kronig Detection
Authors: Wei Yiran , Zhou Yingjun , Liu Cuiwei , Wang Feng , Wang Kaihui , Shi Junting , Chi Nan , Yu Jianjun
Published: March 2020

We experimentally demonstrate 10Gbaud PS 4096QAM OFDM with KK detection over 25m FSO transmission. As far as we know, this is the highest QAM delivery in a FSO communication system.
Exploring Channel Probing to Determine Coherent Optical Transponder Configurations in a Long-Haul Network
Authors: Kaeval Kaida , Rafique Danish , Bławat Kamil , Grobe Klaus , Grießer Helmut , Elbers Jörg-Peter , Rydlichowski Piotr , Binczewski Artur , Tikas Marko
Published: March 2020

We use channel probing to determine the best transponder configurations for spectral services in a long-haul production network. An estimation accuracy better than ±0,7dB in GSNR margin is obtained for lightpaths up to 5738km.
Miniature Optical Connector with Magnetic Physical Contact
Authors: Shikama Kota , Sato Norio , Aratake Atsushi , Shigematsu Satoshi , Sakamoto Takeshi
Published: March 2020

We present a miniature physical-contact optical connector featuring a novel magnetic attraction structure. The magnetic optical connectors we designed and fabricated yield low insertion and high return losses comparable to those of a conventional connector.
Inverse design of few-mode fiber by Neural Network for weak-coupling optimization
Authors: He Zhiqin , Du Jiangbing , Shen Weihong , Huang Yuting , Wang Chang , Xu Ke , He Zuyuan
Published: March 2020

We use a neural network to inversely design a four-ring few-mode fiber for weak-coupling optimization so as to support MIMO-less MDM optical communication. This method provides high-accuracy, high-efficiency and low-complexity for complexed fiber design.
Experimental demonstration of using wet-mate connector in offshore long-distance Raman amplified optical links
Authors: Bjørnstad Steinar , Bøe Rolf , Clements W.R.L. , Shum-tim Bernard , Sanapi Kris , Carlomusto Luigi , Michaelsen Soren
Published: March 2020

Deploying fibre cables to offshore installations may desire a pluggable construction for sub-sea use. Sub-sea connection of fibre cables, carrying high power Raman pump power, using a wet-mate connector is demonstrated for the first time.
Towards Zero-Crosstalk-Margin Operation of Spectrally-Spatially Flexible Optical Networks Using Heterogeneous Multicore Fibers
Authors: Agrawal Anuj , Bhatia Vimal , Prakash Shashi
Published: March 2020

In spectrally-spatially flexible optical network (SS-FON), crosstalk (XT)-margin overprovisioning is unavoidable due to transmission reach granularity of modulation schemes. We show that heterogeneous multicore fibers of specific core designs can achieve zero-XT-margin. We also propose a core-type selection method to minimize XT-margin in SS-FONs.
Recurrent Neural Networks for Short-Term Forecast of Lightpath Performance
Authors: Aladin Sandra , Allogba Stéphanie , Tran Anh Vu Stephan , Tremblay Christine
Published: March 2020

We show how the Recurrent Neural Networks can be used for performance prediction of lightpaths using field bit error rate data. Moreover, we illustrate how the forecast horizons and observation windows affect the forecast accuracy.
SDN Controlled Edge Computing Metro Access Network with Network Slicing and Load-aware end-to-end Service Protection for 5G applications
Authors: Pan Bitao , Xue Xuwei , Yan Fulong , Wang Fu , Magalhães Eduardo , Calabretta Nicola
Published: March 2020

We demonstrate SDN reconfigurable edge-computing metro-access network based on low-cost ROADM nodes with edge-computing and programmable FPGA-based interfaces supporting classification and network slicing. Dynamic network operation and QoS protection is validated with live-streaming use case.
Demonstration of AI-Assisted Energy-Efficient Traffic Aggregation in 5G Optical Access Network
Authors: Guan Luyao , Zhang Min , Wang Danshi
Published: March 2020

We propose an AI-assisted energy-efficient traffic aggregation scheme, which is demonstrated in software-defined optical network testbed. The experimental results show proposed scheme can efficiently reduce energy consumption by traffic aggregation according to traffic prediction.
Real-Time Demonstration of 2.4Tbps (200Gbps/) Bidirectional Coherent DWDM-PON Enabled by Coherent Nyquist Subcarriers
Authors: Rashidinejad A. , Nguyen A. , Olson M. , Hand S. , Welch D.
Published: March 2020

We demonstrate real-time 2.4Tbps bidirectional coherent DWDM-PON (12×200Gbps/) over 100km SMF, enabled by multiplexing Nyquist subcarriers. Further, through proof-of-concept experiments, we show the advantage of coherent subcarrier aggregation in next-generation point-to-multipoint bidirectional access networks.
Sub-nanosecond Optical Switching Using Chip-Based Soliton Microcombs
Authors: Lange S. , Raja A. S. , Shi K. , Karpov M. , Behrendt R. , Cletheroe D. , Haller I. , Karinou F. , Fu X. , Liu J. , Lukashchuk A. , Thomsen B. , Jozwik K. , Costa P. , Kippenberg T. J. , Ballani H.
Published: March 2020

We demonstrate sub-nanosecond wavelength switching, using a chip-based soliton microcomb and a semiconductor optical amplifier-based wavelength selector. 50-Gbps PAM4 transmission is achieved with discrete components and 25-Gbps NRZ with a photonic integrated wavelength selector.
DSP-based Mode-dependent Loss and Gain Estimation in Coupled SDM Transmission
Authors: Ospina Ruby S. B. , Okonkwo Chigo , Mello Darli A. A.
Published: March 2020

We model analytically the MDG/MDL estimation process in coupled SDM transmission using equalizer coefficients of coherent receivers. We show that estimation errors can be partially compensated in moderate regimes of SNR and MDL/MDG.
Amplifier Considerations in ROADM–free Space–Switched Nonlinear Optical Links
Authors: Vincent R.J. , Ives D.J. , Savory Seb J.
Published: March 2020

Power fluctuations accumulate in ROADM–free space–switched networks. Thousands of randomized nonlinear transmissions demonstrate that capacity with an inventory of {5,10,15,20} dB gain amplifiers is within 10 % of optimal and triple that with {10,20} dB amplifiers over 1,000 km.
On-Chip Continuous-Variable Quantum Key Distribution(CV-QKD) and Homodyne Detection
Authors: Shen Y. , Cao L. , Wang X. Y. , Zou J. , Luo W. , Wang Y. X. , Cai H. , Dong B. , Luo X. S. , Fan W. J. , Kwek L. C. , Liu A. Q.
Published: March 2020

An on-chip continuous-variable quantum key distribution(CV-QKD) system is integrated using silicon photonics fabrication process and demonstrates the capability of transceiving Gaussian-modulated coherent states and homodyne detection.
Improved Simulation Accuracy of the Split-Step Fourier Method
Authors: Li Shen , Karlsson Magnus , Agrell Erik
Published: March 2020

We investigate a modified split-step Fourier method (SSFM) by including low-pass filters in the linear steps. This method can simultaneously achieve a higher simulation accuracy and a slightly reduced complexity.
Metasurface Beam Deflector Array on a 12-inch Glass Wafer
Authors: Li Nanxi , Fu Yuan Hsing , Dong Yuan , Hu Ting , Xu Zhengji , Zhong Qize , Li Dongdong , Zhou Yanyan , Lai Keng Heng , Bliznetsov Vladimir , Lee Hou-Jang , Loh Wei Loong , Zhu Shiyang , Lin Qunying , Singh Navab
Published: March 2020

We have demonstrated a large-area metasurface beam deflector array patterned directly on a 12-inch glass wafer using immersion lithography. The captured random points at 940 nm wavelength show a good match with the design.
Demonstration of Joint Operation across OpenROADM Metro Network, OpenFlow Packet Domain, and OpenStack Compute Domain
Authors: Mirkhanzadeh Behzad , Vachhani Shweta , Bathula Balagangadhar G. , Thouenon Gilles , Betoule Christophe , Triki Ahmed , Birk Martin , Renais Olivier , Zhang Tianliang , Razo Miguel , Tacca Marco , Fumagalli Andrea
Published: March 2020

Progress on the recent implementation of OpenROADM MSA functionali-ties is reported along with a description of the related TransportPCE SDN controller and PROnet multi-domain resource orchestrator software modules. These functionalities enable the described use cases.
Compressed Nonlinear Equalizers for Optical Interconnects: Efficiency and Stability
Authors: Ge Ling , Zhang Wenjia , Zhang Yanci , Liang Chenyu , Du Jiangbing , He Zuyuan
Published: March 2020

Efficiency and stability of pruned Volterra-Series and Neural-Network Equalizers are compared in the 112-Gbps optical interconnects. The results show NNE outperforms VE at equalization performance and complexity while VE is more stable with channel variation.
Comparative Investigations between SSMF and Hollow-core NANF for Transmission in the S+C+L-bands
Authors: Hong Yang , Bradley Thomas D. , Taengnoi Natsupa , Bottrill Kyle R. H. , Hayes John R. , Jasion Gregory T. , Mulvad Hans C. , Poletti Francesco , Petropoulos Periklis , Richardson David J.
Published: March 2020

An experimental study reveals that hollow-core nested anti-resonant-nodeless fibers exhibit a broader bandwidth, lower latency, and offer >20% capacity enhancement in short-reach >100-Gb/s adaptively-loaded DMT transmission, relative to a standard SMF of a similar length.
Indium Phosphide Photonic Integrated Circuits
Authors: Smit M.K. , Williams K.A.
Published: March 2020

Photonic integration is essential for high-performance communications and now becomes directly exploitable in sensing, metrology and imaging. InP PICs provide lasers, amplifiers, modulators and detectors in one platform, and a roadmap for higher density integration.
Topological Photonics in Integrated Waveguide
Authors: He Xin-Tao , Li Meng-Yu , Qiu Hao-Yang , Chen Xiao-Dong , Dong Jian-Wen
Published: March 2020

In this talk, we will show our recent works about exploration of valley photonic crystal waveguides towards the discovery of topological integrated photonics, particular for the silicon-on-insulator slab in telecommunication wavelength.
Single-Mode VCSEL Transmission Over Graded-index Single-Mode Fiber Around 850 nm
Authors: Li Ming-Jun , Li Kangmei , Chen Xin , Mishra Snigdharaj K. , Juarez Adrian A. , Hurley Jason E. , Stone Jeffery S.
Published: March 2020

We discuss fiber designs of graded-index profile single-mode fiber for both 1310 nm single-mode transmission and 850 nm few-mode transmission and present fiber characterization and system transmission performance results using a single-mode VCSEL
Computation with optical oscillator networks
Authors: Takesue Hiroki
Published: March 2020

We discuss future perspective of a new type of computing based on networks of optical oscillators, which includes coherent Ising machines for combinatorial optimization and coherent XY machine for continuous optimization.
Choice of optical access innovations to meet today’s needs and support the challenges of tomorrow
Authors: Chanclou Philippe , Neto Luiz Anet , Simon Gael , Saliou Fabienne , Neyret Nicolas , Thily Erick , Abgrall Daniel , Minodier David
Published: March 2020

The aims of this paper are to illustrate the major trends for optical access innovations capable of meeting present and future requirements. It also highlights what are the main technology enablers for identified use cases.
Highly Sensitive 56 Gbps NRZ O-band BiCMOS-Silicon Photonics Receiver using a Ge/Si Avalanche Photodiode
Authors: Srinivasan S. A. , Lambrecht J. , Berciano M. , Lardenois S. , Absil P. , Bauwelinck J. , Yin X. , Pantouvaki M. , Van Campenhout J.
Published: March 2020

A hybrid BiCMOS-Silicon Photonics receiver with a waveguide-coupled Ge/Si avalanche photodiode is demonstrated with OMA sensitivities of −14.4dBm for error-free operation at 50 Gbps and -18.6 dBm under the KP4-FEC limit at 56 Gbps NRZ-OOK.
Estética, peletería y extinción de especies. El visón europeo como ejemplo
Authors: Tafalla González Marta
Published: March 2020

Una de las principales causas de que el visón europeo, Mustela lutreola, esté en peligro de extinción es la industria peletera. Por un lado, durante los siglos XIX y XX, la caza por su piel causó un grave declive en la especie. Por otro lado, a partir de la década de 1920, la peletería fue substituyendo la caza por la cría en cautividad, y Europa se llenó de granjas de visón americano, Neovison vison; los ejemplares fugados de ellas están colonizando el continente y se han convertido en una amenaza para el visón europeo. Actualmente, algunos países comienzan a prohibir estas granjas, que en cambio aumentan en España. El objetivo de este artículo es analizar este caso concreto como un ejemplo de que nuestros gustos estéticos pueden resultar dañinos e incluso letales para otras especies y la naturaleza en general.
Voces y silencios de la tierra en la composición polifónica de las geografías ético-poéticas sur-sur
Authors: Noguera De Echeverri Ana Patricia , Bernal Arias Diana Alexandra , Echeverri Noguera Sergio Manuel
Published: March 2020

La composición polifónica musical nos permite hablar de la emergencia, en el sur y desde el sur que somos, de Voces de la Tierra, que han susurrado, cantado, llorado o gritado el dolor producido por las maneras de habitar humanas construidas en la modernidad cosificadora de la tierra y del mundo de la vida, modernidad mercantil, industrial y global cuya ética se ha reducido a valores absolutamente euro-antropo-racional-centristas, permeados por el valor supremo del capital. En este artículo, emergente de pensadores ambientales latinoamericanos y pensadores-otros que han sospechado radicalmente del edificio de la ética ambiental emergente de la conferencia del Club de Roma o del Informe Burndtland, intentamos desplegar lo ético, como ethos con e larga, que en griego significa casa, y desde este lugar de enunciación, intentamos  salirnos del sujeto y del objeto en la variación ética ambiental eurocentrista, y proponer con las voces de la tierra sur, abya yala, diseños del ethos, ligado óntica-relacionalmente con el cuerpo-tierra. Diseñamos, inspirados en Husserl, Heidegger, Deleuze, Guattari, Ángel-Maya, Enrique Leff, Noguera, Echeverri,  pensadores-otros y voces de montañas, animales, ríos, y plantas, la vida, territorios de libertad entendida ésta como expansión de los cuerpos en la naturaleza y de paz integral y completa, entendiendo que no puede haber paz, si no amamos ni respetamos la tierra que somos. Esto exige el giro óntico-etico- estético-político de la ética en clave de un Pensamiento Ambiental Sur.
La ética ecológica en el Antropoceno
Authors: Arias Maldonado Manuel
Published: March 2020

¿De qué manera afecta el Antropoceno a la ética ecológica? Sabido es que el primero no solo da cuenta de la formidable transformación de origen antropogénico experimentada por los sistemas planetarios, sino que de paso constata que el impacto humano sobre la Tierra es menos un accidente o contingencia que la consecuencia inevitable del modo de ser de la especie. Este artículo explorará las consecuencias que la actual emergencia planetaria tiene para la ética ecológica, arguyendo que la ausencia del sujeto político "humanidad" incrementa la importancia de un comportamiento individual que está, agregación mediante, en la raíz del cambio climático y demás manifestaciones del Antropoceno. Se defenderá la idea de que la virtud más importante para el ciudadano ecológico es la virtud epistémica de la reflexividad o autoconciencia, cuyo resultado habrá de ser la formación de una subjetividad planetaria orientada a la sostenibilidad y, idealmente, a la reparación de las relaciones de la humanidad con el mundo natural.
Human Platelet Lysate (HPL) as an Alternative Media Propagation of T47D Cells Line
Authors: Mentari Diani , Pebrina Relita , Nurpratami Diah
Published: March 2020

Fetal bovine serum (FBS) is a gold standard as a supplement to cell and tissue culture media. This is due to a large number of Growth Factor (GF) contained in FBS. However, the use of FBS is at risk of transferring endotoxins, prions, bacteria and viruses from animals to humans, so it is risky to be used on cell therapy. Human Platelet Lysate (HPL) is a medium that can be developed as an alternative cell growth medium. The advantage of HPL is that it does not contain aggregate platelets so it does not cause the cells to clot. This condition causes HPL to be used as a substitute medium replacing FBS for cell propagation. The use of HPL for cell propagation has been widely reported. However, the use of HPL in cancer cells has not been found. Thus, this study aims to see the effectiveness of HPL as a T47D cell culture medium. The study began with donor selection with criteria for the male sex, the blood type O, the age ≤35 years. Furthermore, the Platelet Concentrate (PC) was processed into HPL then measured pH, total protein and albumin levels. The cell viability was measured using the MTT assay to determine the ability of cell proliferation when propagation using HPL. The doubling time test was carried out as in the cell proliferation test. However, the incubation was carried out for 24 h, 48 h and 72 h and the HPL concentration used was 5%. The result shows that HPL 10% and 20% ability to increase proliferation better than the FBS 10%. HPL with a 5% concentration ability to shortens the doubling time than FBS 10% (doubling time is less than 19.94 h). It this study, cell proliferation is influenced by the pH of HPL and total protein but not by the amount albumin.Keywords: Human Platelet Lysate, Proliferation, T47D cell line, total protein, albumin.
Pentagamavunon-0 (PGV-0) Enhance Cytotoxic Effect of Doxorubicin through Increasing of Apoptosis, Senescence and ROS Level on Triple Negative Breast Cancer 4T1
Authors: Hadi Ismanurrahman , Jenie Riris Istighfari , Meiyanto Edy
Published: March 2020

TNBC, one of the sub type of breast cancers was widely known with high tumorigenic and poor prognosis than others. The development of combination agent (co-chemotherapy) with doxorubicin for chemotherapy of TNBC were carried out to decrease doxorubicin side effect and resistance in cancer. This present study aims to explore the co-chemotherapeutic properties of PGV-0 and investigate induction of doxorubicin on apoptosis, senescence and ROS against TNBC. 4T1 Cell line were used as a TNBC in vitro model. Cytotoxic measurement was performed using MTT assay resulting in IC50 values of 52 μM. Meanwhile, the combination of doxorubicin and PGV-0 showed synergistic effect which decreased cell viability of 4T1 better than single treatment of doxorubicin. Apoptosis analysis was performed using annexin V/PI assay indicated that the combination treatment of PGV-0 and doxorubicin increased apoptosis evidence. Senescence detection was carried out using senescence-associated-β galactosidase (SA-β-gal) assay. The results showed that a single treatment of PGV-0 induced cellular senescence and increased senescence cells in combination treatment. Moreover, DCFDA staining showed that PGV-0 increased ROS level at single treatment, whereas combination treatment increased ROS intracellular compared to the positive control of doxorubicin. Based on these results, PGV-0 has potential as a co-chemotherapeutic candidate on TNBC.Keyword: 4T1, PGV-0, Co-chemotherapy, Cytotoxic, Senescence, Apoptosis, ROS
Legacy of the scientific collections of the Instituto de Investigação Científica Tropical, University of Lisbon: a critical review and outlook
Authors: Casanova Conceição
Published: March 2020

The Instituto de Investigação Científica Tropical/University of Lisbon (IICT/UL), Portugal, holds the most important scientific collections from Portuguese-speaking African countries, which include anthropological, archaeological, ethnographic, mineralogical, botanical and zoological collections, as well as libraries and historical archives. The aim of this paper is to document the advances in conservation and management of IICT collections between 2005 and 2015, namely how the implementation of institutional initiatives created new challenges for the scientific community. After an overview of the IICT's scientific heritage since the creation of the Cartography Commission in 1883, we characterise several recent actions aimed at preserving and providing access to the collections. Considerations on the current preservation of the IICT collections are presented. It is argued that these collections are unique for tropical science and of critical importance for scientific cooperation with Portuguese-speaking countries in Africa.
Trump’s Trade Revolution
Authors: Mastanduno Michael
Published: March 2020

The Trump administration has reversed a 70-year consensus and transformed both the substance of trade policy and the postwar role the US has played in its global management. It has also reconfigured the role of the president in the domestic trade policy process. Armed with the power and influence the US amassed during its long run as leader of the post-war liberal world economy, the Trump administration has used trade as its principle coercive weapon in foreign policy. It has achieved some success, albeit at high diplomatic cost and by putting at risk America’s long-standing structural advantages in the world economy. Given that domestic discontent with the liberal world economy has increased significantly, it is likely that the core aspects of Trump’s trade revolution will endure, even if subsequent administrations soften Trump’s provocative execution of it.