Pub Date : 2021-08-23DOI: 10.1109/ICOCN53177.2021.9563762
Xianxin Yang, Zhihong Li
The mechanism of mode transition is obtained, showing that mode transition corresponds to the generation of phase-matched film waveguide modes including film guided modes and film cladding modes, which occurs from the last fiber mode.
{"title":"New insights into fiber-optic mode transition","authors":"Xianxin Yang, Zhihong Li","doi":"10.1109/ICOCN53177.2021.9563762","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563762","url":null,"abstract":"The mechanism of mode transition is obtained, showing that mode transition corresponds to the generation of phase-matched film waveguide modes including film guided modes and film cladding modes, which occurs from the last fiber mode.","PeriodicalId":6756,"journal":{"name":"2021 19th International Conference on Optical Communications and Networks (ICOCN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73547473","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 : 2021-08-23DOI: 10.1109/ICOCN53177.2021.9563716
Zhangjun Yu, Qinqin Zhuang, Tingyi Zhu, Mingyang Huang, Peijiong Li, Pengbai Xu, K. Wen, Jun Yang
A distributed polarization crosstalk (DPC) measurement method for a polarization-maintaining device is proposed based on optical frequency domain polarimetry (OFDP). An interpolation resampling algorithm is presented to correct the phase error induced by the nonlinear frequency sweep of the laser. Furthermore, an iterative dispersion compensation algorithm is proposed to suppress the influence of the birefringence dispersion of the DUT. A comparative measurement result for a 500m-length PM fiber coil between the OFDP and the conventional optical coherence domain polarimetry (OCDP) method demonstrates that the OFDP method has a superior dynamic range of >10 dB and a much less measurement time. It shows promise for the dynamic measurement of DPC.
{"title":"Distributed polarization crosstalk measurement based on optical frequency domain polarimetry","authors":"Zhangjun Yu, Qinqin Zhuang, Tingyi Zhu, Mingyang Huang, Peijiong Li, Pengbai Xu, K. Wen, Jun Yang","doi":"10.1109/ICOCN53177.2021.9563716","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563716","url":null,"abstract":"A distributed polarization crosstalk (DPC) measurement method for a polarization-maintaining device is proposed based on optical frequency domain polarimetry (OFDP). An interpolation resampling algorithm is presented to correct the phase error induced by the nonlinear frequency sweep of the laser. Furthermore, an iterative dispersion compensation algorithm is proposed to suppress the influence of the birefringence dispersion of the DUT. A comparative measurement result for a 500m-length PM fiber coil between the OFDP and the conventional optical coherence domain polarimetry (OCDP) method demonstrates that the OFDP method has a superior dynamic range of >10 dB and a much less measurement time. It shows promise for the dynamic measurement of DPC.","PeriodicalId":6756,"journal":{"name":"2021 19th International Conference on Optical Communications and Networks (ICOCN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89017856","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 : 2021-08-23DOI: 10.1109/ICOCN53177.2021.9563658
Yuan Yuan, Ruihuan Zhang, Yu He, Yang Zhang, Yikai Su
We propose a multi-mode racetrack micro-ring resonator, side-coupled with a bus waveguide to generate an ultra-sharp Fano resonance lineshapes. The slope rate can reach ~968 dB/nm and the extinction ratio is ~7 dB.
{"title":"Ultra-sharp Fano resonances based on two-hole-assisted side-coupled multi-mode racetrack microring structure","authors":"Yuan Yuan, Ruihuan Zhang, Yu He, Yang Zhang, Yikai Su","doi":"10.1109/ICOCN53177.2021.9563658","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563658","url":null,"abstract":"We propose a multi-mode racetrack micro-ring resonator, side-coupled with a bus waveguide to generate an ultra-sharp Fano resonance lineshapes. The slope rate can reach ~968 dB/nm and the extinction ratio is ~7 dB.","PeriodicalId":6756,"journal":{"name":"2021 19th International Conference on Optical Communications and Networks (ICOCN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84825275","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}
In order to accelerate the multimode waveguide design, several regression models are employed to predict the effective refractive indices (neff) from fundamental mode to fourth-order TE mode with various waveguide geometric parameters. On dataset with air cladding, the percent of eligible data whose prediction error is less than 10–3 of different modes are respectively 89.95%, 88.10%, 82.29%, 75.83%, 71.19%. And on dataset with SiO2 cladding, they are 95.40%, 92.81 %, 90.90%, 81.99%, 86.39%. This study guides the structural design and optimization of optical waveguides based on machine learning.
{"title":"Predicting Effective Refractive Indices of Multimode Waveguide via Deep Learning","authors":"Tianhang Yao, Tianye Huang, Yuan Xie, Zhichao Wu, Dapeng Luo, Zhuo Cheng, P. Ping","doi":"10.1109/ICOCN53177.2021.9563662","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563662","url":null,"abstract":"In order to accelerate the multimode waveguide design, several regression models are employed to predict the effective refractive indices (neff) from fundamental mode to fourth-order TE mode with various waveguide geometric parameters. On dataset with air cladding, the percent of eligible data whose prediction error is less than 10–3 of different modes are respectively 89.95%, 88.10%, 82.29%, 75.83%, 71.19%. And on dataset with SiO2 cladding, they are 95.40%, 92.81 %, 90.90%, 81.99%, 86.39%. This study guides the structural design and optimization of optical waveguides based on machine learning.","PeriodicalId":6756,"journal":{"name":"2021 19th International Conference on Optical Communications and Networks (ICOCN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90769272","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 : 2021-08-23DOI: 10.1109/ICOCN53177.2021.9563678
Mengli Liu, M. Gao
IM/DD probabilistically-shaped multicarrier communication is attractive for optical interconnects due to low cost and power consumption, enhanced resilience to noise and flexibility of entropy allocation. In this work, we present its principles and key features.
{"title":"Probabilistically Shaped Multicarrier Communication","authors":"Mengli Liu, M. Gao","doi":"10.1109/ICOCN53177.2021.9563678","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563678","url":null,"abstract":"IM/DD probabilistically-shaped multicarrier communication is attractive for optical interconnects due to low cost and power consumption, enhanced resilience to noise and flexibility of entropy allocation. In this work, we present its principles and key features.","PeriodicalId":6756,"journal":{"name":"2021 19th International Conference on Optical Communications and Networks (ICOCN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89671844","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 proposed a monolithically integrated narrow linewidth semiconductor laser composing of an active section and a passive narrow band reflector (NBR) based on waveguide Bragg gratings. The π phase shifted Bragg grating is used in the active section to obtain single longitudinal mode output. The NBR is consist of a taper waveguide, π phase shifted antisymmetric Bragg grating (π-PS-ASBG) and uniform Bragg grating. Two sections are integrated on an identical InP wafer and share one continuous waveguide. Because of the hybrid mode resonance in the passive section, it has a relatively long effective length to narrow the linewidth of laser. Narrow linewidth about 16 kHz is obtained when the laser's length is 800 µm and the coupling coefficient of the π-PS-ASBG is 180 cm−1.
{"title":"Monolithically Integrated Narrow Linewidth Semiconductor Laser With a Narrow Band Reflector","authors":"Hongji Wang, Yue-chun Shi, Yitao Wu, Yuxin Ma, Ziming Hong, Haoyuan Wu, Xiangfei Chen","doi":"10.1109/ICOCN53177.2021.9563760","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563760","url":null,"abstract":"We proposed a monolithically integrated narrow linewidth semiconductor laser composing of an active section and a passive narrow band reflector (NBR) based on waveguide Bragg gratings. The π phase shifted Bragg grating is used in the active section to obtain single longitudinal mode output. The NBR is consist of a taper waveguide, π phase shifted antisymmetric Bragg grating (π-PS-ASBG) and uniform Bragg grating. Two sections are integrated on an identical InP wafer and share one continuous waveguide. Because of the hybrid mode resonance in the passive section, it has a relatively long effective length to narrow the linewidth of laser. Narrow linewidth about 16 kHz is obtained when the laser's length is 800 µm and the coupling coefficient of the π-PS-ASBG is 180 cm−1.","PeriodicalId":6756,"journal":{"name":"2021 19th International Conference on Optical Communications and Networks (ICOCN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89734226","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 : 2021-08-23DOI: 10.1109/ICOCN53177.2021.9563728
Hengyu Liu, Shuzheng Fan, X. Xiao
A model is proposed for the polarization dependent nonlinear pulse propagation in multimode fiber. Based on this model, the effects of polarization on the nonlinear modal interaction, including the spatial beam self-cleaning, are analyzed.
{"title":"Effects of Polarization on the Nonlinear Pulse Propagation in Multimode Fibers","authors":"Hengyu Liu, Shuzheng Fan, X. Xiao","doi":"10.1109/ICOCN53177.2021.9563728","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563728","url":null,"abstract":"A model is proposed for the polarization dependent nonlinear pulse propagation in multimode fiber. Based on this model, the effects of polarization on the nonlinear modal interaction, including the spatial beam self-cleaning, are analyzed.","PeriodicalId":6756,"journal":{"name":"2021 19th International Conference on Optical Communications and Networks (ICOCN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87565753","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 : 2021-08-23DOI: 10.1109/ICOCN53177.2021.9563764
Ling Liu, Ruixin Liang, Shoucui Wang, Hong Chen, M. Gao, Bowen Chen, Jinbing Wu
With the rapid development of Internet of Things (IoT), 5G, and cloud computing, a large number of emerging applications has emerged, such as mobile payment and self-driving cars. Collaborative cloud-edge computing networks (CCECNs) is an effective way to alleviate the limitation of computing capacity by offloading complex tasks from IoT. Thus, this paper mainly proposes selective offloading network resource optimization approaches to address the offloading network resource problems for user requests in CCECNs. Simulation results show that proposed approaches can optimize network resource allocation and can reduce end-to-end (E2E) latency and blocking probability.
{"title":"Selective Offloading Network Resource Optimization Approaches in Collaborative Cloud-Edge Computing Networks","authors":"Ling Liu, Ruixin Liang, Shoucui Wang, Hong Chen, M. Gao, Bowen Chen, Jinbing Wu","doi":"10.1109/ICOCN53177.2021.9563764","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563764","url":null,"abstract":"With the rapid development of Internet of Things (IoT), 5G, and cloud computing, a large number of emerging applications has emerged, such as mobile payment and self-driving cars. Collaborative cloud-edge computing networks (CCECNs) is an effective way to alleviate the limitation of computing capacity by offloading complex tasks from IoT. Thus, this paper mainly proposes selective offloading network resource optimization approaches to address the offloading network resource problems for user requests in CCECNs. Simulation results show that proposed approaches can optimize network resource allocation and can reduce end-to-end (E2E) latency and blocking probability.","PeriodicalId":6756,"journal":{"name":"2021 19th International Conference on Optical Communications and Networks (ICOCN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87776185","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 : 2021-08-23DOI: 10.1109/ICOCN53177.2021.9563791
X. Ren
For better understanding of quantum photonics, five novel fundamental concepts are presented. Some typical quantum phenomena such as quantum tunneling, double-slit interference, delayed-choice experiment, quantum eraser experiment and the “uncertainty” relations have been properly re-interpreted and the advancement on full-cosmic-scope relativity has also been introduced.
{"title":"Novel Fundamental Concepts beneath Quantum Photonics","authors":"X. Ren","doi":"10.1109/ICOCN53177.2021.9563791","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563791","url":null,"abstract":"For better understanding of quantum photonics, five novel fundamental concepts are presented. Some typical quantum phenomena such as quantum tunneling, double-slit interference, delayed-choice experiment, quantum eraser experiment and the “uncertainty” relations have been properly re-interpreted and the advancement on full-cosmic-scope relativity has also been introduced.","PeriodicalId":6756,"journal":{"name":"2021 19th International Conference on Optical Communications and Networks (ICOCN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84320905","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 : 2021-08-23DOI: 10.1109/ICOCN53177.2021.9563879
Mao Feng, Wen-Chi Chang, Baiwei Mao, Pan Wang, Zhi Wang, Yan-ge Liu
We demonstrated a twisted long-period fiber grating mode converter to generate LP21 mode. The introduction of twisting could significantly improve the fabrication efficiency and reduce the damage to fiber structure.
{"title":"All-fiber second-order Mode Converter Based on Twisted Long-period Fiber Grating","authors":"Mao Feng, Wen-Chi Chang, Baiwei Mao, Pan Wang, Zhi Wang, Yan-ge Liu","doi":"10.1109/ICOCN53177.2021.9563879","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563879","url":null,"abstract":"We demonstrated a twisted long-period fiber grating mode converter to generate LP21 mode. The introduction of twisting could significantly improve the fabrication efficiency and reduce the damage to fiber structure.","PeriodicalId":6756,"journal":{"name":"2021 19th International Conference on Optical Communications and Networks (ICOCN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85631753","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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