Pub Date : 2021-09-13DOI: 10.1109/ECOC52684.2021.9605842
P. Skvortcov, T. Koike-Akino, D. Millar, K. Kojima, K. Parsons
We investigate a dual coding concatenation in probabilistic amplitude shaping to mitigate post-shaping burst errors. The joint use of pre-/post-shaping BCH codes can significantly relax bit error rate (BER) threshold after soft-decision code resulting in signal-to-noise ratio (SNR) gain of 0.1 dB.
{"title":"Dual Coding Concatenation for Burst-Error Correction in Probabilistic Amplitude Shaping","authors":"P. Skvortcov, T. Koike-Akino, D. Millar, K. Kojima, K. Parsons","doi":"10.1109/ECOC52684.2021.9605842","DOIUrl":"https://doi.org/10.1109/ECOC52684.2021.9605842","url":null,"abstract":"We investigate a dual coding concatenation in probabilistic amplitude shaping to mitigate post-shaping burst errors. The joint use of pre-/post-shaping BCH codes can significantly relax bit error rate (BER) threshold after soft-decision code resulting in signal-to-noise ratio (SNR) gain of 0.1 dB.","PeriodicalId":117375,"journal":{"name":"2021 European Conference on Optical Communication (ECOC)","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115588494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-13DOI: 10.1109/ecoc52684.2021.9605867
Shuto Yamamoto, Hiroki Taniguchi, M. Nakamura, Y. Kisaka
We show that a nonlinear-spectral-shaping scheme with transition-likelihood-based decoder including symbol- and likelihood-domain feedbacks enhances the tolerance to bandwidth limitation and achieves KP4-FEC threshold in 10-km O-band transmission of 93-Gbaud PAM4 with very severe bandwidth limitation in which the 20-dB bandwidth is 40 GHz.
{"title":"O-Band 10-km PAM Transmission Using Nonlinear-Spectrum-Shaping Encoder and Transition-Likelihood-Based Decoder with Symbol- and Likelihood-Domain Feedbacks","authors":"Shuto Yamamoto, Hiroki Taniguchi, M. Nakamura, Y. Kisaka","doi":"10.1109/ecoc52684.2021.9605867","DOIUrl":"https://doi.org/10.1109/ecoc52684.2021.9605867","url":null,"abstract":"We show that a nonlinear-spectral-shaping scheme with transition-likelihood-based decoder including symbol- and likelihood-domain feedbacks enhances the tolerance to bandwidth limitation and achieves KP4-FEC threshold in 10-km O-band transmission of 93-Gbaud PAM4 with very severe bandwidth limitation in which the 20-dB bandwidth is 40 GHz.","PeriodicalId":117375,"journal":{"name":"2021 European Conference on Optical Communication (ECOC)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114847355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-13DOI: 10.1109/ECOC52684.2021.9605955
I. Roudas, J. Kwapisz, E. Fink
We propose a new energy-efficient, short-haul, multidimensional modulation using spatial degrees of freedom in SDM fibers to create well-separated points in the generalized Stokes space. We study the transceiver architecture, geometric constellation shaping, bit-to-symbol mapping, and the performance of the optically-preamplified direct-detection receiver.
{"title":"Mode Vector Modulation","authors":"I. Roudas, J. Kwapisz, E. Fink","doi":"10.1109/ECOC52684.2021.9605955","DOIUrl":"https://doi.org/10.1109/ECOC52684.2021.9605955","url":null,"abstract":"We propose a new energy-efficient, short-haul, multidimensional modulation using spatial degrees of freedom in SDM fibers to create well-separated points in the generalized Stokes space. We study the transceiver architecture, geometric constellation shaping, bit-to-symbol mapping, and the performance of the optically-preamplified direct-detection receiver.","PeriodicalId":117375,"journal":{"name":"2021 European Conference on Optical Communication (ECOC)","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117261839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-13DOI: 10.1109/ecoc52684.2021.9606054
D. Sequeira, M. Ruiz, N. Costa, A. Napoli, J. Pedro, Luis Velasco
A lightweight optical constellations modeling method based on concatenating ANNs is proposed. Statistical validation of the reproduced constellations is shown. The method accelerates data generation and facilitates detecting (un)intentioned misconfigurations, among others.
{"title":"Lightweight Optical Constellation Modeling by Concatenating Artificial Neural Networks","authors":"D. Sequeira, M. Ruiz, N. Costa, A. Napoli, J. Pedro, Luis Velasco","doi":"10.1109/ecoc52684.2021.9606054","DOIUrl":"https://doi.org/10.1109/ecoc52684.2021.9606054","url":null,"abstract":"A lightweight optical constellations modeling method based on concatenating ANNs is proposed. Statistical validation of the reproduced constellations is shown. The method accelerates data generation and facilitates detecting (un)intentioned misconfigurations, among others.","PeriodicalId":117375,"journal":{"name":"2021 European Conference on Optical Communication (ECOC)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116485101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-13DOI: 10.1109/ECOC52684.2021.9605944
T. Kernetzky, G. Ronniger, U. Höfler, L. Zimmermann, N. Hanik
We analyze silicon-on-insulator waveguides, suitable for ultra-broadband inter-modal four-wave mixing-based all-optical wavelength conversion. We show numerical evaluations of waveguide modes and dispersion, and optimize phase matching. We finally present measurements of linear insertion loss and mode coupling, dispersion and four-wave mixing conversion efficiency.
{"title":"Numerical Optimization and CW Measurements of SOI Waveguides for Ultra-Broadband C-to-O-Band Conversion","authors":"T. Kernetzky, G. Ronniger, U. Höfler, L. Zimmermann, N. Hanik","doi":"10.1109/ECOC52684.2021.9605944","DOIUrl":"https://doi.org/10.1109/ECOC52684.2021.9605944","url":null,"abstract":"We analyze silicon-on-insulator waveguides, suitable for ultra-broadband inter-modal four-wave mixing-based all-optical wavelength conversion. We show numerical evaluations of waveguide modes and dispersion, and optimize phase matching. We finally present measurements of linear insertion loss and mode coupling, dispersion and four-wave mixing conversion efficiency.","PeriodicalId":117375,"journal":{"name":"2021 European Conference on Optical Communication (ECOC)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121898378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We propose a single-lane 212Gbps IM/DD PAM-4 system with a novel Multi-Symbol Output LSTM equalizer that performs much better than FFE&VNE and single-symbol output LSTM, and reduces complexity by 49.85% at the same time, and achieves similar performance with Bi-directional LSTM with around 1/4 complexity.
{"title":"Multi-Symbol Output Long Short-Term Memory Neural Network Equalizer For 200+ Gbps IM/DD System","authors":"Bohan Sang, Jiao Zhang, Chen Wang, Miao Kong, Yuxuan Tan, Li Zhao, Wen Zhou, Dongdong Shang, Yamin Zhu, Hong Yi, Jianjun Yu","doi":"10.1109/ecoc52684.2021.9606010","DOIUrl":"https://doi.org/10.1109/ecoc52684.2021.9606010","url":null,"abstract":"We propose a single-lane 212Gbps IM/DD PAM-4 system with a novel Multi-Symbol Output LSTM equalizer that performs much better than FFE&VNE and single-symbol output LSTM, and reduces complexity by 49.85% at the same time, and achieves similar performance with Bi-directional LSTM with around 1/4 complexity.","PeriodicalId":117375,"journal":{"name":"2021 European Conference on Optical Communication (ECOC)","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125785323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-13DOI: 10.1109/ecoc52684.2021.9605847
Zhiping Jiang, Xuefeng Tang, Simin Wang, Ge Gao, Dajiang Jin, Jianfeng Wang, Minggang Si
We review the progresses of amplitude modulation pilot tone generation and detection techniques and its applications in optical performance monitoring, such as signal spectrum, optical filtering, and fiber nonlinearity.
{"title":"DSP Enabled, Amplitude Modulation Pilot Tone Based Optical Performance Monitoring in Coherent Systems","authors":"Zhiping Jiang, Xuefeng Tang, Simin Wang, Ge Gao, Dajiang Jin, Jianfeng Wang, Minggang Si","doi":"10.1109/ecoc52684.2021.9605847","DOIUrl":"https://doi.org/10.1109/ecoc52684.2021.9605847","url":null,"abstract":"We review the progresses of amplitude modulation pilot tone generation and detection techniques and its applications in optical performance monitoring, such as signal spectrum, optical filtering, and fiber nonlinearity.","PeriodicalId":117375,"journal":{"name":"2021 European Conference on Optical Communication (ECOC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128560048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-13DOI: 10.1109/ecoc52684.2021.9606080
Hiroki Taniguchi, Shuto Yamamoto, Y. Kisaka, S. Kanazawa, T. Yoshimatsu, Yozo Isikawa, K. Mizuno
We demonstrate 224-Gbps/λ 2-km transmission using 4-ch LAN-WDM TOSA with integrated SOAs and EADFB lasers. We achieve a BER below the HD-FEC limit for all channels in the 10-dB bandwidth of 34.8-GHz and chromatic dispersion of –4.2-ps/nm with advanced nonlinear MLSE based on decision feedback.
{"title":"800-Gbps PAM-4 O-band Transmission through 2-km SMF using 4λ LAN-WDM TOSA with MLSE Based on Nonlinear Channel Estimation and Decision Feedback","authors":"Hiroki Taniguchi, Shuto Yamamoto, Y. Kisaka, S. Kanazawa, T. Yoshimatsu, Yozo Isikawa, K. Mizuno","doi":"10.1109/ecoc52684.2021.9606080","DOIUrl":"https://doi.org/10.1109/ecoc52684.2021.9606080","url":null,"abstract":"We demonstrate 224-Gbps/λ 2-km transmission using 4-ch LAN-WDM TOSA with integrated SOAs and EADFB lasers. We achieve a BER below the HD-FEC limit for all channels in the 10-dB bandwidth of 34.8-GHz and chromatic dispersion of –4.2-ps/nm with advanced nonlinear MLSE based on decision feedback.","PeriodicalId":117375,"journal":{"name":"2021 European Conference on Optical Communication (ECOC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129778927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-13DOI: 10.1109/ecoc52684.2021.9605806
Guillaume Soudais, S. Bigo, Nihel Benzaoui
We propose a per-packet distributed monitoring plane for time-sensitive optical networking. Over a packet switched network and using our FPGA-based prototype, we demonstrate latency measurements of 6.4ns precision per hop with an offset of only 1.22µs.
{"title":"Per Packet Distributed Monitoring Plane with Nanoseconds Measurements Precision","authors":"Guillaume Soudais, S. Bigo, Nihel Benzaoui","doi":"10.1109/ecoc52684.2021.9605806","DOIUrl":"https://doi.org/10.1109/ecoc52684.2021.9605806","url":null,"abstract":"We propose a per-packet distributed monitoring plane for time-sensitive optical networking. Over a packet switched network and using our FPGA-based prototype, we demonstrate latency measurements of 6.4ns precision per hop with an offset of only 1.22µs.","PeriodicalId":117375,"journal":{"name":"2021 European Conference on Optical Communication (ECOC)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130155247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-13DOI: 10.1109/ecoc52684.2021.9605843
Dezhi Zhang, Dekun Liu, D. Nesset, Xuming Wu, Jiang Ming
The design and performance of a first real-time 50G-PON prototype with 50Gbps downstream and 25Gbps upstream line rate is described. Results from trials in a network carrier lab show ~40Gbps downstream service capacity with ~80μs latency for a 10km fibre link.
{"title":"Carrier Lab Trial of a Real Time 50G-PON Prototype","authors":"Dezhi Zhang, Dekun Liu, D. Nesset, Xuming Wu, Jiang Ming","doi":"10.1109/ecoc52684.2021.9605843","DOIUrl":"https://doi.org/10.1109/ecoc52684.2021.9605843","url":null,"abstract":"The design and performance of a first real-time 50G-PON prototype with 50Gbps downstream and 25Gbps upstream line rate is described. Results from trials in a network carrier lab show ~40Gbps downstream service capacity with ~80μs latency for a 10km fibre link.","PeriodicalId":117375,"journal":{"name":"2021 European Conference on Optical Communication (ECOC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127884650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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