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":"71 1","pages":"1-3"},"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/ICOCN53177.2021.9563890
R. Zhou, Qian Li, H. Fu
We experimentally demonstrated a simplified NPE mode-locked fiber laser supporting both quasi-coherent noise-like and conventional soliton pulse emission in a single laser cavity. The dual-color pluses were separated and analyzed in detail.
{"title":"Commensalism of quasi-coherent noise-like and conventional soliton pulse in a simplified NPE mode-locked fiber laser","authors":"R. Zhou, Qian Li, H. Fu","doi":"10.1109/ICOCN53177.2021.9563890","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563890","url":null,"abstract":"We experimentally demonstrated a simplified NPE mode-locked fiber laser supporting both quasi-coherent noise-like and conventional soliton pulse emission in a single laser cavity. The dual-color pluses were separated and analyzed in detail.","PeriodicalId":6756,"journal":{"name":"2021 19th International Conference on Optical Communications and Networks (ICOCN)","volume":"2 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80330982","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":"88 1","pages":"1-2"},"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}
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":"24 1","pages":"1-3"},"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/ICOCN53177.2021.9563799
Ranran Han, Zugang Liu, Qianmin Dong
This paper uses wxAMPS software to carry out simulation calculation about the influence of parameter changes on device performance of copper indium gallium selenide (CIGS) thin film solar cell, with structure of soda lime glass substrate/Mo thin film bottom electrode/CIGS absorber layer/CdS buffer layer/i-ZnO thin film high resistance layer/AZO thin film transparent conductive layer. With different absorption layer thickness, we simulate the gradient distribution of the band gap of the CIGS thin-film absorption layer in the solar cell. By calculating the device efficiency with the minimum band gap at different positions, we have found the most suitable position of the minimum band gap for this model is near the front absorption layer and the device efficiency with absorption layer thickness 1.5um is similar to that of 2um, which means the thin absorption layer of the solution method can be effective.
{"title":"Study of CIGS Absorber Thickness and Gradient Bandgap effect on Device Performance","authors":"Ranran Han, Zugang Liu, Qianmin Dong","doi":"10.1109/ICOCN53177.2021.9563799","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563799","url":null,"abstract":"This paper uses wxAMPS software to carry out simulation calculation about the influence of parameter changes on device performance of copper indium gallium selenide (CIGS) thin film solar cell, with structure of soda lime glass substrate/Mo thin film bottom electrode/CIGS absorber layer/CdS buffer layer/i-ZnO thin film high resistance layer/AZO thin film transparent conductive layer. With different absorption layer thickness, we simulate the gradient distribution of the band gap of the CIGS thin-film absorption layer in the solar cell. By calculating the device efficiency with the minimum band gap at different positions, we have found the most suitable position of the minimum band gap for this model is near the front absorption layer and the device efficiency with absorption layer thickness 1.5um is similar to that of 2um, which means the thin absorption layer of the solution method can be effective.","PeriodicalId":6756,"journal":{"name":"2021 19th International Conference on Optical Communications and Networks (ICOCN)","volume":"51 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72788448","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":"6 1","pages":"1-3"},"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":"35 1","pages":"1-3"},"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/ICOCN53177.2021.9563823
Yuanzhou Zhang, Dong Guo, Huan Chang, Fu Wang, Zhipei Li
Two new four-dimensional modulation schemes, 4DTCM-SP-128QAM and 4DTCM-SP-128TQAM, are proposed with lower BER. The simulation show that they can obtain 2.53dB and 1.33dB gain respectively with great potential used in long-haul optical transmission system.
{"title":"New Efficient Four-Dimensional Trellis Coded Modulation Format","authors":"Yuanzhou Zhang, Dong Guo, Huan Chang, Fu Wang, Zhipei Li","doi":"10.1109/ICOCN53177.2021.9563823","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563823","url":null,"abstract":"Two new four-dimensional modulation schemes, 4DTCM-SP-128QAM and 4DTCM-SP-128TQAM, are proposed with lower BER. The simulation show that they can obtain 2.53dB and 1.33dB gain respectively with great potential used in long-haul optical transmission system.","PeriodicalId":6756,"journal":{"name":"2021 19th International Conference on Optical Communications and Networks (ICOCN)","volume":"14 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82132135","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/ICOCN53177.2021.9563694
Jinpeng Pang, X. Ma, Jian-jun He
A Fourier-transform Raman integrated spectrometer based on 650 Fabry-Perot-cavity array with a total size of 0.4 cm2 is proposed. It can work from 820 nm to 930 nm with a resolution of 5 cm-1.
{"title":"Fabry-perot cavity array based on-chip waveguide spectrometer","authors":"Jinpeng Pang, X. Ma, Jian-jun He","doi":"10.1109/ICOCN53177.2021.9563694","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563694","url":null,"abstract":"A Fourier-transform Raman integrated spectrometer based on 650 Fabry-Perot-cavity array with a total size of 0.4 cm2 is proposed. It can work from 820 nm to 930 nm with a resolution of 5 cm-1.","PeriodicalId":6756,"journal":{"name":"2021 19th International Conference on Optical Communications and Networks (ICOCN)","volume":"34 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90566059","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/ICOCN53177.2021.9563806
Shuzheng Fan, X. Xiao, L. Kong, Xia Zhang
For the nonlinear ultrashort pulse propagation in multimode fiber, we find that beam self-cleaning can be achieved by optimizing the refractive index profile of the fiber to minimize the modal dispersion.
{"title":"Effect of Refractive Index Profile of Multimode-fiber on Nonlinear Beam Self-cleaning","authors":"Shuzheng Fan, X. Xiao, L. Kong, Xia Zhang","doi":"10.1109/ICOCN53177.2021.9563806","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563806","url":null,"abstract":"For the nonlinear ultrashort pulse propagation in multimode fiber, we find that beam self-cleaning can be achieved by optimizing the refractive index profile of the fiber to minimize the modal dispersion.","PeriodicalId":6756,"journal":{"name":"2021 19th International Conference on Optical Communications and Networks (ICOCN)","volume":"8 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78565683","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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