debug Th1A sesstype Tech sesstiming Upcoming userisstaff False userisregistered False userhastechnicalaccess False tags Oral, D1, Invited, Oral or Poster Acceptable, Oral Only, Optical and Neuromorphic Computing; Photonic-Electronic Integration sessionlink Zoom Type |
Th1A
Novel Photonic Devices and Applications
Presider:
Samuel Palermo,
Texas A&M University,
United States
Room 1AB
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(UTC - 08:00)
Th1A.1
Integrated Comb-Driven Silicon Photonics
Presenter: Xingjun Wang,
Peking University
We realize the combination of integrated microcomb and silicon photonics, employing the advanced AlGaAsOI optical nonlinear platform and novel SiPh chips. Data link with 2-Tbps aggregate rate and highly reconfigurable radio frequency filter are demonstrated.Authors: Xingjun Wang, Peking University / Bitao Shen, Peking University / Haowen Shu, Peking University / Lin Chang, University of California, Santa Barbara / Yuansheng Tao, Peking University / Weiqiang Xie, University of California, Santa Barbara / John E. Bowers, University of California, Santa Barbara
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(UTC - 08:00)
Th1A.2
Automatic in-Situ Optical Linearization of Silicon Photonic Ring-Assisted MZ Modulator for Integrated RF Photonic SoCs
Presenter: Md Jubayer Shawon,
University of Delaware
We experimentally demonstrate automatic optical linearization of a Ring-Assisted MZ modulator with SFDR > 110dB.Hz2/3, fabricated in a silicon photonic foundry process. The linearization algorithm reconfigures the modulator to its optimum SFDR or other desired regimes regardless of random phase offsets and process/temperature variations.Authors: Md Jubayer Shawon, University of Delaware / Vishal Saxena, University of Delaware
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(UTC - 08:00)
Th1A.3
Fast (<9.4 μs)="" full-c-band="" tuning="" of="" silicon="" photonics="" double-ring="" filters="" using="" feed-forward="" control="">9.4>
Presenter: Ryotaro Konoike,
AIST
We demonstrate full-C-band (1530-1565 nm) tuning of narrowband (~20 GHz) silicon ring filters with <9.4 μs optical 60% rise time, which is >25 times faster than step-function control, by adopting inverse-designed feed-forward analog control.Authors: Ryotaro Konoike, AIST / Hiroyuki Matsuura, AIST / Keijiro Suzuki, AIST / Ryosuke Matsumoto, AIST / Kazuhiro Ikeda, AIST / Ken-ichi Sato, AIST
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(UTC - 08:00)
Th1A.4
Slim Push-Pull Fiber Array Connector for Optical Chips
Presenter: Lars Brusberg,
Corning Inc
We report connector loss of 0.42 dB for a low-profile fiber-to-chip connector to replace fiber pigtails and enable flip-chip electronic assembly of optical chips for co-packaged optics.Authors: Lars Brusberg, Corning Inc / Jürgen Matthies, Corning Optical Communications GmbH & Co KG / Jason Grenier, Corning Inc / Jeffrey Clark, Corning Inc / Betsy Johnson, Corning Inc / Chad Terwilliger, Corning Inc
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(UTC - 08:00)
Th1A.5
Self-Aligned Fiber Attach on Monolithic Silicon Photonic Chips: Moisture Effect and Hermetic Seal
Presenter: Zhuojie Wu,
GLOBALFOUNDRIES
We report a study on moisture effect on optical performance of monolithic silicon photonics technologies featuring V-grooves for self-aligned fiber attach. Chip-level hermetic sealing was achieved by implementing moisture barrier for the fiber coupler.Authors: Zhuojie Wu, GLOBALFOUNDRIES / Ping-Chuan Wang, GLOBALFOUNDRIES / Seungman Choi, GLOBALFOUNDRIES / Patrick Justison, GLOBALFOUNDRIES / Martin Gall, GLOBALFOUNDRIES / Jae-Kyu Cho, GLOBALFOUNDRIES / Takako Hirokawa, GLOBALFOUNDRIES / Yusheng Bian, GLOBALFOUNDRIES / Thomas Houghton, GLOBALFOUNDRIES / Vaishnavi Karra, GLOBALFOUNDRIES / Dan Moy, GLOBALFOUNDRIES / Karen Nummy, GLOBALFOUNDRIES / Dave Riggs, GLOBALFOUNDRIES / Norman Robson, GLOBALFOUNDRIES / Ian Melville, GLOBALFOUNDRIES / Ken Giewont, GLOBALFOUNDRIES
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(UTC - 08:00)
Th1A.6
Pioneering Silicon Photonics for Wearable Sensors
Presenter: Jeffrey Driscoll,
Rockley Photonics
The Rockley silicon photonics platform has unique advantages perfectly suited to addressing the needs of wearable health sensors. An overview of the platform is presented including its application to non-invasive continuous monitoring of body temperature.Authors: Jeffrey Driscoll, Rockley Photonics / Philip Perea, Rockley Photonics / Ariel Kauffman, Rockley Photonics / Aaron Zilkie, Rockley Photonics / Benjamin Ver Steeg, Rockley Photonics
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Th1B
Nonlinear-Optical Amplifiers and Oscillators
Presider:
Michael Vasilyev,
University of Texas at Arlington,
United States
Room 2
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(UTC - 08:00)
Th1B.1
Design and Applications of Highly Nonlinear Fibers
Presenter: Ryuichi Sugizaki,
Furukawa Electric
Highly nonlinear fibers which can be utilized in all-optical signal processing is introduced. Characteristics of highly nonlinear fiber and requirements from various applications are summarized.Authors: Ryuichi Sugizaki, Furukawa Electric / Masanori Takahashi, Furukawa Electric / Shigehiro Takasaka, Furukawa Electric / Toshio Kimura, Furukawa Electric
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(UTC - 08:00)
Th1B.2
Temperature-Tuned two-Segment Highly-Nonlinear Fiber With Increased Stimulated Brillouin Scattering Threshold
Presenter: Cheng Guo,
University of Texas at Arlington
We apply temperature tuning to align zero-dispersion wavelengths of two fiber segments with different Brillouin frequencies. The resulting two-segment highly-nonlinear fiber exhibits 2.1-dB-increased stimulated Brillouin scattering threshold and flattened parametric gain.Authors: Cheng Guo, University of Texas at Arlington / Michael Vasilyev, University of Texas at Arlington / Youichi Akasaka, Fujitsu Network Communications / Paparao Palacharla, Fujitsu Network Communications / Shigehiro Takasaka, Furukawa Electric Co. Ltd / Ryuichi Sugizaki, Furukawa Electric Co. Ltd
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(UTC - 08:00)
Th1B.3
Mid-Span Pump Phase Shift Applied to WDM Wavelength Conversion for the Suppression of FWM Crosstalk
Presenter: Kyle Bottrill,
University of Southampton
We apply mid-span pump-phase shifting to the wavelength conversion of a 9 channel WDM band in order to suppress inter-channel nonlinear crosstalk. SNR improvements between 3-6dB are observed through the use of the technique.Authors: Kyle Bottrill, University of Southampton / Natsupa Taengnoi, University of Southampton / Hao Liu, University of Southampton / Periklis Petropoulos, University of Southampton
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(UTC - 08:00)
Th1B.4
Low-Noise Phase-Sensitive Optical Parametric Amplifier With Local Pump Generation Using Digital Frequency and Phase Control
Presenter: Rasmus Larsson,
Chalmers University of Technology
We demonstrate a novel, lossless approach, eliminating the need to co-propagate pumps in phase-sensitive parametric amplifier-based links, by control loops creating a locked pump within the amplifier. Gain, noise and BER measurements validate the performance.Authors: Rasmus Larsson, Chalmers University of Technology / Kovendhan Vijayan, Chalmers University of Technology / Jochen Schröder, Chalmers University of Technology / Peter Andrekson, Chalmers University of Technology
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(UTC - 08:00)
Th1B.5
Low-Noise, Flat-Spectrum, Polarization-Maintaining All-Fiber Frequency Comb for Wideband Communications
Presenter: Yijia Cai,
University College London
We design and optimize a parametric frequency comb generator using all polarization-maintaining components, highly-doped PM fiber and PM highly-nonlinear fibers, obtaining 500 tones over 100nm with >-5dBm per tone and less than 40kHz linewidth.Authors: Yijia Cai, University College London / Ronit Sohanpal, University College London / Yuan Luo, Chinese University of Hong Kong / Alexander Heidt, University of Bern / Zhixin Liu, University College London
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(UTC - 08:00)
Th1B.6
High-Efficiency Microcombs Aligned With ITU-T Grid for WDM Optical Interconnects
Presenter: Jizhao Zang,
NIST
We report generation of flat soliton microcombs aligned with ITU-T grid. We demonstrate close to 70% pump-to-comb conversion efficiency and the required on-chip pump power is below 40 mW.Authors: Jizhao Zang, NIST / Su-peng Yu, NIST / David Carlson, NIST / Travis Briles, NIST / Yan Jin, NIST / Scott Papp, NIST
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(UTC - 08:00)
Th1B.7
30-Gbaud PM-16-QAM Transmission Over E-, S-, C- and L-Band With Hybrid Raman Amplifier
Presenter: Pratim Hazarika,
Aston University
We demonstrate 50km, 30-Gbaud PM-16QAM transmission with a hybrid distributed-discrete Raman amplifier over 25.8THz bandwidth. E-band distributed Raman amplification shows 0.7dB averaged Q2-penalty, versus 1.9dB and 0.9dB due to S-band and C+L-band discrete Raman amplification.Authors: Pratim Hazarika, Aston University / Aleksandr Donodin, Aston University / Mingming Tan, Aston University / Ian Phillips, Aston University / Paul Harper, Aston University / Wladek Forysiak, Aston University
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Th1C
Panel: Promises, Prospects and Challenges of VCSELs for Data Center Interconnects, Free-Space Communications, and Sensing
Room 6C
Event Details
Description:
We aim for thought-provoking presentations and discussions on future promises and challenges of VCSELs for data center interconnects, free space optical communications, and sensing applications.
VCSELs are the light source of choice for short-reach data center interconnects, with 53 Gbps per lane (26.5 Gbaud PAM4) arrays being widely deployed and 106 Gbps per lane (via 53 Gbaud PAM4) arrays under pilot runs. However, can they scale up to 200 Gbps per channel with the same oxide-confined VCSEL structure? Will it require a radically different device technology to bring the bandwidth to 40 GHz and to mitigate the reliability issues due to increased operating temperatures when moving the pluggable transceivers from the front plate to the ASIC? What are the cost drivers and challenges to overcome?
Will VCSELs or VCSEL arrays enable fifth (5G) and sixth generation (6G or Next G) optical wireless communication at 10 to 50 Gbps per lane over meters to kilometers? What role will VCSELs play in 5G and 6G optical wireless communication and sensing for Internet of Things, manufacturing, backhaul, last mile, urban mesh networks, and more?
Decades of manufacturing and deployment experience in communication systems have provided a foundation in two new markets for VCSELs: 3D sensing and automotive LiDAR. Can the rapid innovations in 3D sensing and LiDAR help to transform the VCSEL in other market segments, and if yes, how?
In this Panel, we will discuss state-of-the-art VCSEL technologies, remaining device and systems challenges, synergies across different market segments, and future emerging applications.
Organizers
- Connie Chang-Hasnian, Brexel Photonics, China
- Fotini Karinou, Microsoft Research Ltd, UnitedKingdom
- Hai-Feng Liu, HG Genuine, China
- Jim Lott, Technical University Berlin, Germany
Speakers
- Ernesto Ciaramella, Scuola Superiore Sant'Anna, Italy
- John R. Joseph, OptiPulse Inc, USA
- Cy Lu, Lumentum Operations Inc, USA
- Ramana Murty, Broadcom, USA
- Jiaxing Wang, Berxel Photonics, China
Special Event
debug Th1D sesstype Tech sesstiming Upcoming userisstaff False userisregistered False userhastechnicalaccess False tags Oral, N2, Invited, Oral or Poster Acceptable sessionlink Zoom Type |
Th1D
Data Center Networks and Control
Room 3
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(UTC - 08:00)
Th1D.1
PROPH: a Contention-Free and Elastic Bandwidth Scheduling Scheme for AWGR-Based Optical DCN
Presenter: Xinwei Zhang,
Beijing University of Post and Telecommu
A contention-free scheduling scheme PROPH is proposed for AWGR-based optical DCN to elastically allocate adaptable bandwidth. Assessments validate that the network deploying PROPH decreases 73.6% packet loss and 11.9% server-to-server latency, improves 11.6% network throughput.Authors: Xinwei Zhang, Beijing University of Post and Telecommu / Xuwei Xue, Beijing University of Post and Telecommu / Bingli Guo, Beijing University of Post and Telecommu / Xiaoyue Su, Beijing University of Post and Telecommu / Yisong Zhao, Beijing University of Post and Telecommu / Yuanzhi Guo, Beijing University of Post and Telecommu / Shanguo Huang, Beijing University of Post and Telecommu
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(UTC - 08:00)
Th1D.2
GCN-Assisted SnF Scheduling Method for Inter-Datacenter Bulk Transfers
Presenter: Lanfang Zheng,
Fuzhou University
A GCN-assisted scheduling method is presented to schedule bulk transfers across the inter-DCN in a store-and-forward manner. Simulations demonstrate that the proposed method obtains better network performance and lower complexity than the conventional methods.Authors: Xiao Lin, Fuzhou University / Lanfang Zheng, Fuzhou University / Yajie Li, Beijing University of Posts and Telecommunications / Keqin Shi, Shanghai Jiao Tong University
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(UTC - 08:00)
Th1D.3
How Data Center Networks Can Improve Through Co-Packaged Optics
Presenter: Pavlos Maniotis,
IBM TJ Watson Research Center
Building higher-radix switches with co-packaged optics can help improving network locality in data center networks. Simulations show completion time reductions of up to 40% for an all-to-all communication pattern and a network stack latency of 1.25 us.Authors: Pavlos Maniotis, IBM TJ Watson Research Center / Laurent Schares, IBM TJ Watson Research Center / Daniel Kuchta, IBM TJ Watson Research Center
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(UTC - 08:00)
Th1D.4
P4INC-AOI: When in-Network Computing Meets All-Optical Interconnect for Adaptive and Low-Latency Optical DCN
Presenter: Zuqing Zhu,
Univ of Science and Technology of China
We propose and experimentally demonstrate P4INC-AOI for orchestrating in-network computing and all-optical interconnect in an optical data-center network. Experimental results show that P4INC-AOI reduces job completion time of Hadoop MapReduce jobs by 77.9% on average.Authors: Xuexia Xie, Univ of Science and Technology of China / Hao Yang, Univ of Science and Technology of China / Zuqing Zhu, Univ of Science and Technology of China
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(UTC - 08:00)
Th1D.5
P4-Based Hitless FaaS Load Balancer for Packet-Optical Network Edge Continuum
Presenter: Filippo Cugini,
CNIT
P4 and novel node telemetry are leveraged to provide load balancing of ultra-low latency serverless application to multiple edges. Handling the overload of one edge without observable change in application delay is demonstrated.Authors: Istvan Pelle, Budapest University of Technology and Economics / Francesco Paolucci, CNIT / Balazs Sonkoly, Budapest University of Technology and Economics / Filippo Cugini, CNIT
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(UTC - 08:00)
Th1D.6
Interconnection Networks With Co-Packaged Photonics
Presenter: Fabrizio Petrini,
Intel Corporation
Abstract not available.Authors: Fabrizio Petrini, Intel Corporation
debug Th1E sesstype Tech sesstiming Upcoming userisstaff False userisregistered False userhastechnicalaccess False tags Oral, S2, Invited, Oral or Poster Acceptable sessionlink Zoom Type |
Th1E
Beyond 400G Transmission
Presider:
Hungchang (James) Chien,
Marvell Technology Inc.,
United States
Room 6D
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(UTC - 08:00)
Th1E.1
System Impact of Laser Phase Noise on 400G and Beyond Coherent Pluggables
Presenter: Hai Xu,
Marvell Technology, Inc
We show that 800G systems are highly sensitive to phase noise of local oscillator. We introduce a PI model that correlates well with measured performance. We present performance simulations and limitations of current timing recovery.Authors: Hai Xu, Marvell Technology, Inc / Marcos Rebellato, Marvell Technology, Inc / Shih-Cheng Wang, Marvell Technology, Inc
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(UTC - 08:00)
Th1E.2
Transmission and Reception of 17×480 Gbit/s PDM-16QAM With Tx/Rx I/Q Imbalance Compensation and Simplified MLSE for Metro-Regional 400G Optical Communications
Presenter: Fan Li,
Sun Yat-Sen University
We experimentally demonstrate a single-carrier 400G Metro/regional communications based on 60-GBaud PDM-16QAM over 430-km SMF-28. Joint GPD and GSOP and 4×4 MIMO LMS equalizer are adopted to compensate Rx/Tx I/Q imbalance, and simplified MLSE with 99.61% computational complexity reduction is employed to mitigate channel bandwidth constraint.Authors: Fan Li, Sun Yat-Sen University / Dongdong Zou, Sun Yat-Sen University / Weihao Ni, Sun Yat-Sen University / Zhiwei Chen, Sun Yat-Sen University / Xingwen Yi, Sun Yat-Sen University / Zhaohui Li, Sun Yat-Sen University
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(UTC - 08:00)
Th1E.3
Impact of Laser Impairments on DSCM-Based 800G Point-to-MultiPoint Coherent Transmission Systems
Presenter: sami mumtaz,
Huawei Technologies
We experimentally investigate the impact of laser frequency linewidth and jitter on the design of uplink point-to-multipoint DSCM systems. The performance degradation due to sub-band overlap, bandwidth limitation and DSP penalty is quantified.Authors: sami mumtaz, Huawei Technologies / Trung-Hien Nguyen, Huawei Technologies / Abir Hraghi, Huawei Technologies / Abel Lorences-Riesgo, Huawei Technologies / Yann Frignac, Huawei Technologies / Gabriel Charlet, Huawei Technologies / Yu Zhao, Huawei Technologies
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(UTC - 08:00)
Th1E.4
Multi-Parameter AI-Based Bandwidth Compensation for Energy-Efficient 800G Transmission
Presenter: Marco Fernandes,
Instituto de Telecomunicacoes
We propose a novel energy-efficient AI-based bandwidth compensation technique that jointly optimizes Tx and Rx static filters. Experimental demonstration in a 800G system reveals gains of more than 1 dB when compared with typical digital pre-emphasis.Authors: Marco Fernandes, Instituto de Telecomunicacoes / Adriano Messias, Idea! Electronic Systems / Tomaz Vilela, Idea! Electronic Systems / Daniel Formiga, Idea! Electronic Systems / Jacklyn Reis, Idea! Electronic Systems / Paulo Monteiro, University of Aveiro / Fernando Guiomar, Instituto de Telecomunicacoes
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(UTC - 08:00)
Th1E.5
1.96Tbps and 256-Gbaud Dual-Carrier Faster Than Nyquist Signal Transmission Using Two Narrow-Bandwidth Modulators and Single Coherent Receiver
Presenter: Guoxiu Huang,
Fujitsu Ltd.
A large capacity system basing on Faster-than-Nyquist technologies using narrow-bandwidth components was experimentally demonstrated with a hybrid of simple transmitter DSP and optical-equalization for an efficient spectrum-shaping to achieve 1.96Tbps net rate over 120km transmission.Authors: Guoxiu Huang, Fujitsu Ltd. / Hisao Nakashima, Fujitsu Ltd. / Jun Matsui, Fujitsu Ltd. / Yohei Sobu, Fujitsu Ltd. / Shinsuke Tanaka, Fujitsu Ltd. / Takeshi Hoshida, Fujitsu Ltd.
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(UTC - 08:00)
Th1E.6
4.8 Tb/s PS-PAM-8 Bidirectional Transmission Over 10-km 24-Core Fiber Using Linear Equalization at O-Band
Presenter: chao yang,
China Information Communication Technologies Group
4.8-Tb/s PS-PAM-8 bidirectional transmission is experimentally demonstrated over 10-km 24-core fiber with SOA using only linear equalization at O-band. The experimental results indicate that the MCFs are well-suited for optical short-reach systems employing IM/DD.Authors: chao yang, China Information Communication Technologies Group / Runzhe Fan, China Information Communication Technologies Group / Huang Yu, Fiberhome Fujikura Optic Technology / Hao Guo, Fiberhome Fujikura Optic Technology / Chuyu Peng, Fiberhome Fujikura Optic Technology / Ming Luo, China Information Communication Technologies Group / Xi Xiao, China Information Communication Technologies Group
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(UTC - 08:00)
Th1E.7
Four-Wave Mixing Mitigation by Using Waveguide-Based 4λ-WDM Filters for 800 and 400 GbE
Presenter: Ai Yanagihara,
NTT Device Innovation Center, NTT Corporation
We report four-wave mixing mitigation by 4λ-WDM filters fabricated by silica-based planar lightwave circuits for 800- and 400-GbE application. The multiplexing filter integrates a simple polarization-alternating structure on arbitrary lanes for the impairment mitigation.Authors: Ai Yanagihara, NTT Device Innovation Center, NTT Corporation / Mingchen Chen, NTT Device Innovation Center, NTT Corporation / Shigeru Kanazawa, NTT Device Innovation Center, NTT Corporation / Yasuhiko Nakanishi, NTT Device Innovation Center, NTT Corporation / Masahiro Nada, NTT Device Innovation Center, NTT Corporation / HIROKI TANIGUCHI, NTT Network Innovation Laboratories, NTT Corporation / Kenya Suzuki, NTT Device Innovation Center, NTT Corporation
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Th1F
Machine Learning and Advanced Digital Signal Processing
Presider:
Kohki Shibahara,
NTT Network Innovation Laboratories,
Japan
Room 6E
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(UTC - 08:00)
Th1F.1
Real-Time MIMO Adaptive Equalization With Carrier-Phase Recovery for Mode-Division Multiplexed Optical Coherent System
Presenter: Koji Igarashi,
Osaka University
We review our designed and implemented real-time MIMO adaptive equalization with carrier-phase recovery and frequency offset, which has been introduced to real-time mode-division multiplexed transmission experiments.Authors: Koji Igarashi, Osaka University
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(UTC - 08:00)
Th1F.2
Pre-Link Compensation of Nonlinear Signal Distortion by a Phase Conjugation and Parameter Profiled Fiber Module
Presenter: Mark Pelusi,
AIST
Pre-compensation of nonlinear signal distortion in a transmission link by optical phase conjugation is enhanced by a Raman-amplified parameter-profiled fiber for improved propagation symmetry. Application to 5×12-Gb/s-DP-16QAM signals before a 2×160-km link demonstrates 2.2-dB higher Q2-factor.Authors: Mark Pelusi, AIST / Ryosuke Matsumoto, AIST / Takashi Inoue, AIST / Shu Namiki, AIST
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(UTC - 08:00)
Th1F.3
On the Impact of Frequency Variation on Nonlinearity Mitigation Using Frequency Combs
Presenter: Ronit Sohanpal,
University College London
We investigated the impact of linewidth and dithering-induced frequency variation on the performance of nonlinearity mitigation using frequency combs. Compared to independent laser arrays, >2dB SNR gain can be achieved using comb sources.Authors: Ronit Sohanpal, University College London / Eric Sillekens, University College London / Filipe Ferreira, University College London / Robert Killey, University College London / Polina Bayvel, University College London / Zhixin Liu, University College London
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(UTC - 08:00)
Th1F.4
Highly Scalable WDM Nonlinear Frequency Division Multiplexed Transmission System Using Spectral Overlap
Presenter: Olaf Schulz,
Kiel University
We present a highly scalable PIC-based nonlinear frequency division multiplexed transmission system in which b-modulated channels are wavelength division multiplexed with spectral overlap so as to obtain a seamless spectrum without frequency guard bands.Authors: Olaf Schulz, Kiel University / Alvaro Moscoso-Mártir, RWTH Aachen University / Jeremy Witzens, RWTH Aachen University / Stephan Pachnicke, Kiel University
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(UTC - 08:00)
Th1F.5
PINN for Power Evolution Prediction and Raman Gain Spectrum Identification in C+L-Band Transmission System
Presenter: yuchen song,
Beijing University of Post and Telecommu
We experimentally demonstrate multi-channel power evolution prediction and identification of frequency-dependent fiber characteristics using PINN. A maximum absolute error of 0.3 dB for power prediction is observed on C+L-band transmission under different loadings.Authors: yuchen song, Beijing University of Post and Telecommu / yao zhang, Beijing University of Post and Telecommu / Chunyu Zhang, Beijing University of Post and Telecommu / Jin Li, Beijing University of Post and Telecommu / Min Zhang, Beijing University of Post and Telecommu / Danshi Wang, Beijing University of Post and Telecommu
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(UTC - 08:00)
Th1F.6
Digital Pre-Distortion Coefficients Identification Using Gauss-Newton Based Direct Learning Architecture
Presenter: hexun jiang,
Shanghai Jiao Tong University
We propose to identify the coefficients of a digital pre-distortion equalizer based on direct learning architecture (DLA) using the Gauss-Newton method. Experimental results show that DLA outperforms indirect learning architecture by 0.5dB.Authors: hexun jiang, Shanghai Jiao Tong University / Mengfan Fu, Shanghai Jiao Tong University / Yixiao Zhu, Shanghai Jiao Tong University / Lilin Yi, Shanghai Jiao Tong University / Weisheng Hu, Shanghai Jiao Tong University / Qunbi Zhuge, Shanghai Jiao Tong University
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(UTC - 08:00)
Th1F.7
Knowledge Distillation Applied to Optical Channel Equalization: Solving the Parallelization Problem of Recurrent Connection
Presenter: Sasipim Srivallapanondh,
Aston University
To circumvent the non-parallelizability of recurrent neural network-based equalizers, we propose knowledge distillation to recast the RNN into a parallelizable feedforward structure. The latter shows 38% latency decrease, while impacting the Q-factor by only 0.5dB.Authors: Sasipim Srivallapanondh, Aston University / Pedro Freire, Aston University / Bernhard Spinnler, Infinera / Nelson Costa, Infinera / Antonio Napoli, Infinera / Sergei K. Turitsyn, Aston University / Jaroslaw E. Prilepsky, Aston University
debug Th1G sesstype Tech sesstiming Upcoming userisstaff False userisregistered False userhastechnicalaccess False tags Oral, N4, Tutorial, Oral Only, Oral or Poster Acceptable, Machine Learning and Advanced Digital Signal Processing sessionlink Zoom Type |
Th1G
Signal Processing in Next-Generation PON
Presider:
Paola Parolari,
Politecnico di Milano,
Italy
Room 6F
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(UTC - 08:00)
Th1G.1
Interoperability and Experimental Evaluation of TDEC(Q) Testing for 50 and 100G PONs
Presenter: Dora van Veen,
Nokia Bell Labs
We detail the TDEC(Q) method and its usage in the context of system level specifications for 50 and 100G PONs. Real-time experimental results obtained with representative PON transmitters are used to analyze and validate interoperability of these PONs.Authors: Dora van Veen, Nokia Bell Labs / Robert Borkowski, Nokia Bell Labs / Amitkumar Mahadevan, Nokia Bell Labs / Vincent Houtsma, Nokia Bell Labs
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(UTC - 08:00)
Th1G.2
Study of TDEC for 50G-PON Upstream at 50 Gb/s in Negative Dispersion Regime Using 25G-Class Transceivers
Presenter: Giuseppe Caruso,
Huawei Technologies
We evaluate TDEC and Rx sensitivity in a negative dispersion regime with 25G-class DML and EML modulated at 50 Gb/s. Results show that TDEC can effectively predict the performance of both transmitters for 50G-PON upstream.Authors: Giuseppe Caruso, Huawei Technologies / Ivan Cano, Huawei Technologies / Giuseppe Talli, Huawei Technologies / Derek Nesset, Huawei Technologies / Roberto Gaudino, Politecnico di Torino
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(UTC - 08:00)
Th1G.3
Equalizer Convergence for Various Transmission Channels and Multi-Rate Upstream 50G-PON
Presenter: Gael Simon,
Orange
We assess the feasibility of multiple transmission channel and multi-rate upstream 50G-PON. The TDEC shows that a unique preset filter may be used at both 50Gb/s and 25Gb/s to meet interoperability without adaptive equalization.Authors: Gael Simon, Orange / Flavio Nogueira Sampaio, Orange / Fabienne Saliou, Orange / Jeremy Potet, Orange / Georges Gaillard, Orange / Philippe Chanclou, Orange
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(UTC - 08:00)
Th1G.4
Real-Time Software Implementation of Coherent Receiver DSP Adopting Multiplication-Based Parallel Frequency Offset Compensation for Fully Virtualized Access Networks
Presenter: Takahiro Suzuki,
NTT Corporation
This paper proposes multiplication-based parallel frequency offset compensation (FOC) for virtualized access networks and demonstrates real-time softwarization of the full DSP function suite, including polarization demultiplexing, FOC, carrier phase recovery, and decoding, on a server.Authors: Takahiro Suzuki, NTT Corporation / Sang-Yuep Kim, NTT Corporation / Jun-ichi Kani, NTT Corporation / Tomoaki Yoshida, NTT Corporation
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(UTC - 08:00)
Th1G.5
FEC and Equalization Implementation Options for 50Gb/s PON and Beyond: a Reality Check
Presenter: Alexandre Graell i Amat,
Chalmers University
Abstract not available.Authors: Alexandre Graell i Amat, Chalmers University
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Th1H
Satellite Communications and UV, LWIR Free Space Optical Communications
Presider:
Morio Toyoshima,
National Inst of Information & Comm Tech,
Japan
Room 9
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(UTC - 08:00)
Th1H.1
8.1 Gbps PAM8 Long-Wave IR FSO Transmission Using a 9.15-µm Directly-Modulated QCL With an MCT Detector
Presenter: Mahdieh Joharifar,
KTH
We experimentally demonstrate a Long-Wave IR FSO link with a 9.15-µm directly modulated quantum cascade laser at room temperature. Up to 8.1 Gb/s PAM8 transmission over 1.4 meter is achieved with a wideband MCT detector. © 2022 The Author(s)Authors: Mahdieh Joharifar, KTH / Mengyao Han, Beijing Jiaotong University / Richard Schatz, KTH / Rafael Puerta, Ericsson / Yan-Ting Sun, KTH / Yuchuan Fan, RISE Research Institutes / Grégory Maisons, mirSense / Johan Abautret, mirSense / Roland Teissier, mirSense / Lu Zhang, Zhejiang University / Sandis Spolitis, Riga Technical University / Muguang Wang, Beijing Jiaotong University / Vjačeslavs Bobrovs, Riga Technical University / Sebastian Lourdudoss, KTH / Xianbin Yu, Zhejiang University / Sergei Popov, KTH / Oskars Ozolins, KTH / Xiaodan Pang, KTH
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(UTC - 08:00)
Th1H.2
Gbps-Class Solar-Blind WDM Optical Wireless Communication by (264, 274, 282)-nm Deep-UV LEDs and CsTe Photomultiplier Tube
Presenter: Yuki Yoshida,
National Inst of Information & Comm Tech
A Gbps-class wavelength-division multiplexing transmission within the solar-blind band was demonstrated for the first time with (264, 274, 282)-nm AlGaN-based LEDs and a CsTe photomultiplier-tube over a 2-m weakly-collimated free-space link in standard indoor illumination.Authors: Yuki Yoshida, National Inst of Information & Comm Tech / Kazunobu Kojima, Osaka University / Masaki Shiraiwa, National Inst of Information & Comm Tech / Atsushi Kanno, Nagoya Institute of Technology / Akira Hirano, UV Craftory Co. Ltd. / Yosuke Nagasawa, UV Craftory Co. Ltd. / Masamichi Ipponmatsu, UV Craftory Co. Ltd. / Naokatsu Yamamoto, National Inst of Information & Comm Tech / Shigefusa Chichibu, Tohoku University / Yoshinari Awaji, National Inst of Information & Comm Tech
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(UTC - 08:00)
Th1H.3
Adaptive Optics for Satellite Laser Communications
Presenter: Yoshihiko Saito,
NICT Hokuriku Research Center
The development of laser communication technology between satellites and ground stations has been paid attention recently. On the other hand, the laser communication between satellites and ground stations is always affected by the atmospheric condition. We can compensate this effect by applying the technology of Adaptive Optics that is used for astronomical observation.Authors: Yoshihiko Saito, NICT Hokuriku Research Center / Dimitar Kolev, NICT Hokuriku Research Center / Jun Nakazono, NICT Hokuriku Research Center / Yuma Abe, NICT Hokuriku Research Center / Morio Toyoshima, NICT Hokuriku Research Center
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(UTC - 08:00)
Th1H.4
Space-Grade Analogue and Digital Photonics for Satellite Communications
Presenter: Antonella Bogoni,
CNIT
The talk concerns the potential, the current issues and the emerging technologies for space-grade photonics for satellite communications and not only.Authors: Antonella Bogoni, CNIT
debug Th1I sesstype Tech sesstiming Upcoming userisstaff False userisregistered False userhastechnicalaccess False tags Oral, S4, Tutorial, Oral or Poster Acceptable, Oral Only sessionlink Zoom Type |
Th1I
THz Optical Communications
Presider:
Lalitha Ponnampalam,
University College London,
United Kingdom
Room 8
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(UTC - 08:00)
Th1I.1
THz Technologies for Optical Communications
Presenter: Alwyn Seeds,
University College London
Connections between user devices and the immense bandwidth of the optical fibre network are usually by microwave wireless, limiting the user bandwidth. This tutorial describes how the use of THz technologies could overcome this limitation.Abstract not available.Authors: Alwyn Seeds, University College London
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(UTC - 08:00)
Th1I.2
OFDM-1024QAM Transmission Over 400m at THz Band With Delta-Sigma-Modulation
Presenter: KAIHUI WANG,
Fudan University
For the first time, we successfully transmit 1.25GBaud OFDM-256QAM/1024QAM signals over 20km SMF and 400m wireless link at the terahertz band with 1-bit DSM. The BER of OFDM-256QAM/1024QAM can satisfy the FEC threshold of 3.8×10-3/4.0×10-2.Authors: KAIHUI WANG, Fudan University / Jianjun Yu, Fudan University / Weiping Li, Fudan University / Junjie Ding, Fudan University / Feng Wang, Fudan University / Chen Wang, Fudan University / Wen Zhou, Fudan University / Jiao Zhang, Purple Mountain Laboratories / Min Zhu, Purple Mountain Laboratories / Tangyao Xie, Beijing University of Posts and Telecommunications / Jianguo Yu, Beijing University of Posts and Telecommunications / Li Zhao, Fudan University / Feng Zhao, Xi’an University of Posts and Telecommunications
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(UTC - 08:00)
Th1I.3
Mitigating the Timing-Jitter in Terahertz Communications via Nyquist Pulse Shaping
Presenter: Mohamed Shehata,
The University of Adelaide
We propose and experimentally demonstrate a Nyquist pulse that can improve the error rate of a 311 GHz photonic-terahertz communications system by more than an order of magnitude at a normalized timing-jitter of 22.5% and 1.44 Gbit/s bit rate.Authors: Mohamed Shehata, The University of Adelaide / Ke Wang, Royal Melbourne Institute of Technology / Julian Webber, Osaka University / Masayuki Fujita, Osaka University / Tadao Nagatsuma, Osaka University / Withawat Withayachumnankul, The University of Adelaide
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(UTC - 08:00)
Th1I.4
300-GHz-Band Wireless Link Using Photonics-Based Ultralow-Noise Transmitter and Receiver
Presenter: Keisuke Maekawa,
Osaka University
We present a THz wireless link using photonics-based signal generators using ultralow amplitude- and phase-noise Brillouin laser sources for both the transmitter and receiver, and demonstrate successful transmission of over-100-Gbit/s signals at 300 GHz with on-line signal processing.Authors: Keisuke Maekawa, Osaka University / Yuma Kawmoto, Osaka University / Tomoya Nakashita, Osaka University / Toki Yoshioka, Osaka University / Takashi Hori, IMRA America Inc / Brendan Heffernan, IMRA America Inc / James Greenberg, IMRA America Inc / Rubab Amin, IMRA America Inc / Tatsuya Tanigawa, IMRA America Inc / Antoine Rolland, IMRA America Inc / Tadao Nagatsuma, Osaka University
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(UTC - 08:00)
Th1I.5
Demonstration of Wireless Transmission of QPSK Signals at 2 THz
Presenter: Isao Morohashi,
National Inst of Information & Comm Tech
Wireless transmission of QPSK signals at 2 THz has been demonstrated using modulator-based optical combs for the transmitter and hot electron bolometer mixers combined with phase-locked terahertz quantum cascade lasers for the receiver.Authors: Isao Morohashi, National Inst of Information & Comm Tech / Yoshihisa Irimajiri, National Inst of Information & Comm Tech / Akira Kawakami, National Inst of Information & Comm Tech / Tadashi Kishimoto, National Inst of Information & Comm Tech / Pham Tien Dat, National Inst of Information & Comm Tech / Atsushi Kanno, National Inst of Information & Comm Tech / Norihiko Sekine, National Inst of Information & Comm Tech / Iwao Hosako, National Inst of Information & Comm Tech
debug Th1J sesstype SpecialEvent sesstiming Upcoming userisstaff False userisregistered False userhastechnicalaccess False tags Special Event, S1 sessionlink Zoom Type |
Th1J
Panel: How Can We Start to Consistently and Quantitatively Account for End-to-End Power Consumption, Beginning with a Focus on 100 Meter Datacenter Links?
Room 7AB
Event Details
Organizers:
Trey Greer, NVIDIA, USA
Clint Schow, UCSB ECE, USA
Description:
The power efficiency of short (<100 m) datacenter optical links has become increasingly important, and pJ/bit has become a ubiquitous figure of merit. However, it is difficult or often impossible to assess and compare true end-to-end power dissipation for various link architectures. Optical link papers often stop power accounting at the optical transducer edges, and do not include the power costs of (de) serialization and clock distribution on the PIC. Furthermore, as we progress toward co-packaged optics, we need a consistent framework for estimating the power of various electrical links to the host ASIC. This panel has a broad scope that extends from systems to devices, and is targeted at beginning to build consensus on how to consistently and quantitatively account for end-to-end power in optical links.
Our goal is to provide researchers with the tools they need to fit their link components into an overall link power consumption budget. We hope to start discussions on the power costs of:
● FEC power per bit vs BER.
● DFE, FFE, and receiver linear EQ.
● Clock distribution and data (de)serialization at various symbol rates.
● 'Gear Boxes’ for converting data stream formats between optical vs electrical layers.
● The electrical links for CPO vs NPO vs pluggable.
● Optical losses at package connections and within PICs that drive up laser power.
Organizers
- Trey Greer, NVIDIA, USA
- Clint Schow, University of California, Santa Barbara ECE, USA
Speakers
- Andreas Bechtolsheim, Arista Networks, USA
- Tom Gray, Nividia Research, USA
- Thomas Lijeberg, Intel Corporation, USA
- Alexander Rylakov, Nokia, Canada
Special Event