Pub Date : 2021-08-23DOI: 10.1109/ICOCN53177.2021.9563773
Liuming Zhang, Xinran Huang, E. Leitgeb, Xuelin Yang
We present the high-speed physical-layer secure key generation and distribution in fiber networks. A key generation rate of 2.7 Gb/s is achieved over 10 km single-mode fiber using a specifically-designed bidirectional polarization scrambler.
{"title":"Gb/s physical-layer secure key generation and distribution in fiber communications","authors":"Liuming Zhang, Xinran Huang, E. Leitgeb, Xuelin Yang","doi":"10.1109/ICOCN53177.2021.9563773","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563773","url":null,"abstract":"We present the high-speed physical-layer secure key generation and distribution in fiber networks. A key generation rate of 2.7 Gb/s is achieved over 10 km single-mode fiber using a specifically-designed bidirectional polarization scrambler.","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":"73096624","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}
Self-calibration processing equipment is studied through measuring the precise size of the workpiece produced in the factory assembly line based on the machine vision measurement technology. Hough circle detection algorithm and subpixel edge algorithm are adopted. After several experiments, the measuring accuracy of the device can reach 0.05mm, which meets the design requirements of measurement accuracy. The self-calibration parameters are sent to the processing equipment through the transmission layer to reduce the rejection rate and improve the enterprise benefits.
{"title":"Research on Self-calibration Strategy of Workpiece Processing Based on Machine Vision","authors":"Zhenqi Wang, Dong Guo, Yongjin Wang, Chunyong Wang, Wending Wei, Runan Ding","doi":"10.1109/ICOCN53177.2021.9563710","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563710","url":null,"abstract":"Self-calibration processing equipment is studied through measuring the precise size of the workpiece produced in the factory assembly line based on the machine vision measurement technology. Hough circle detection algorithm and subpixel edge algorithm are adopted. After several experiments, the measuring accuracy of the device can reach 0.05mm, which meets the design requirements of measurement accuracy. The self-calibration parameters are sent to the processing equipment through the transmission layer to reduce the rejection rate and improve the enterprise benefits.","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":"77572739","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/ICOCN53177.2021.9563768
Hui Li, Jiahe Zhao, Mengying Ru
The evaluation of the loss and the crosstalk is essential for the power budget and performance guarantee. In addition, the speed of the evaluation is important to verify different designs and proposals. However, to ensure the accuracy in the professional tools, the speed is constrained and thus not efficient for the evaluation of different designs. Thus, this work proposes a methodology of building a platform to evaluate the loss and crosstalk in silicon photonic interconnects on chip. Compared to the professional tools, the proposed methodology can offer faster evaluation results, although the evaluation accuracy is to be improved further.
{"title":"A Methodology of Building a Platform to Evaluate the Loss and the Crosstalk in Silicon Photonic Interconnects on Chip","authors":"Hui Li, Jiahe Zhao, Mengying Ru","doi":"10.1109/ICOCN53177.2021.9563768","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563768","url":null,"abstract":"The evaluation of the loss and the crosstalk is essential for the power budget and performance guarantee. In addition, the speed of the evaluation is important to verify different designs and proposals. However, to ensure the accuracy in the professional tools, the speed is constrained and thus not efficient for the evaluation of different designs. Thus, this work proposes a methodology of building a platform to evaluate the loss and crosstalk in silicon photonic interconnects on chip. Compared to the professional tools, the proposed methodology can offer faster evaluation results, although the evaluation accuracy is to be improved further.","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":"77806999","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}
Gases in the real environment always exist in the form of mixtures, and effective identification of gas types to reduce the occurrence of safety incidents has become an important direction in the field of gas analysis research. This paper proposes a mixed gas identification method based on PCA and PSO-LSSVM. This method uses principal component analysis (PCA) to reduce the dimensionality of the sensor array output signal, and uses the Relief algorithm to select data. The particle swarm algorithm is used to iteratively optimize the relevant parameters in the least squares support vector machine model, and the PSO-LSSVM model is constructed to qualitatively analyze the composition of the mixed gas. This article uses a public data set of mixed gases of ethylene, methane and carbon monoxide to conduct experiments. The experimental results show that the method used in this paper can effectively identify the type of mixed gas, and the recognition accuracy rate reaches 91.67%. The method proposed in this paper can provide a research foundation for the follow-up analysis of the mixed gas concentration.
{"title":"A Gas Recognition Method Based on PCA and PSO-LSSVM","authors":"Tingting Song, Wanyu Xia, Zhanwei Yan, Kai Song, Deyun Chen, Yinsheng Chen","doi":"10.1109/ICOCN53177.2021.9563763","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563763","url":null,"abstract":"Gases in the real environment always exist in the form of mixtures, and effective identification of gas types to reduce the occurrence of safety incidents has become an important direction in the field of gas analysis research. This paper proposes a mixed gas identification method based on PCA and PSO-LSSVM. This method uses principal component analysis (PCA) to reduce the dimensionality of the sensor array output signal, and uses the Relief algorithm to select data. The particle swarm algorithm is used to iteratively optimize the relevant parameters in the least squares support vector machine model, and the PSO-LSSVM model is constructed to qualitatively analyze the composition of the mixed gas. This article uses a public data set of mixed gases of ethylene, methane and carbon monoxide to conduct experiments. The experimental results show that the method used in this paper can effectively identify the type of mixed gas, and the recognition accuracy rate reaches 91.67%. The method proposed in this paper can provide a research foundation for the follow-up analysis of the mixed gas concentration.","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":"77881762","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/ICOCN53177.2021.9563787
Chang Liu, Y. Chu, Xinghu Fu, W. Jin, G. Fu, W. Bi
In recent years, as the development of aerospace, road bridge, precisioninstrument and other fields, the requirements of curved detection have become more and more precise and multi-point, and the advantages of fiber curvature sensors have become increasingly obvious. Based on the principle of mode interference, we proposed a cascade single-mode fiber, few-mode fiber and dual-core photonic crystal fiber curvature sensor, which can measure the distribution curvature, and solve the problem of measurement of multiple points that cannot be measured using one sensor. The experiment results show that within 0 to 1.06m−1 curvature range, each test point curvature sensitivity and linearity are −1.58 nm/m−1 and 0.98135, −1.62 nm/m−1 and 0.99504, −1.56 nm/m−1 and 0.98301, −1.74 nm/m−1 and 0.99701, and −1.31 nm/m−1 and 0.97315, respectively.
{"title":"Curvature sensor based on cascaded dual-core photonic crystal fiber","authors":"Chang Liu, Y. Chu, Xinghu Fu, W. Jin, G. Fu, W. Bi","doi":"10.1109/ICOCN53177.2021.9563787","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563787","url":null,"abstract":"In recent years, as the development of aerospace, road bridge, precisioninstrument and other fields, the requirements of curved detection have become more and more precise and multi-point, and the advantages of fiber curvature sensors have become increasingly obvious. Based on the principle of mode interference, we proposed a cascade single-mode fiber, few-mode fiber and dual-core photonic crystal fiber curvature sensor, which can measure the distribution curvature, and solve the problem of measurement of multiple points that cannot be measured using one sensor. The experiment results show that within 0 to 1.06m−1 curvature range, each test point curvature sensitivity and linearity are −1.58 nm/m−1 and 0.98135, −1.62 nm/m−1 and 0.99504, −1.56 nm/m−1 and 0.98301, −1.74 nm/m−1 and 0.99701, and −1.31 nm/m−1 and 0.97315, respectively.","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":"81841125","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/ICOCN53177.2021.9563743
Yingshuo Yang, Juanjuan Yan
A fiber dispersion measurement method based on programmable spectrum shaping and wavelength-to-time mapping is experimentally demonstrated. The dispersion in a 4-km fiber is measured, and the results agree with the values provided by manufacturer.
{"title":"Fiber chromatic dispersion measurements based on programmable spectrum shaping and wavelength-to-time mapping","authors":"Yingshuo Yang, Juanjuan Yan","doi":"10.1109/ICOCN53177.2021.9563743","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563743","url":null,"abstract":"A fiber dispersion measurement method based on programmable spectrum shaping and wavelength-to-time mapping is experimentally demonstrated. The dispersion in a 4-km fiber is measured, and the results agree with the values provided by manufacturer.","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":"81921327","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/ICOCN53177.2021.9563702
Yiming Chen, Jingtang Luo, Yuxuan Yang, Jiang Ni, Weiting Xu, Ke Zhu, Jianhua Cao
We study the influence of the fiber Bragg grating (FBG)'s bandwidth on the performance of the long distance point sensing system based on random fiber laser. The results show that the optical signal-to-noise ratio (OSNR) decreases gradually when the bandwidth of the FBG increases by simulation, under the same pump power, which is demonstrated by the experiment. This work could provide a reference for designing a long-distance optical fiber sensing system.
{"title":"Role of the FBG's bandwidth in long distance point sensing system based on random fiber laser","authors":"Yiming Chen, Jingtang Luo, Yuxuan Yang, Jiang Ni, Weiting Xu, Ke Zhu, Jianhua Cao","doi":"10.1109/ICOCN53177.2021.9563702","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563702","url":null,"abstract":"We study the influence of the fiber Bragg grating (FBG)'s bandwidth on the performance of the long distance point sensing system based on random fiber laser. The results show that the optical signal-to-noise ratio (OSNR) decreases gradually when the bandwidth of the FBG increases by simulation, under the same pump power, which is demonstrated by the experiment. This work could provide a reference for designing a long-distance optical fiber sensing system.","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":"81934564","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/ICOCN53177.2021.9563740
Qun-Ying Liu, Jing Zhang, Shaohua Hu, Taowei Jin, Mingyue Zhu, K. Qiu, X. Yi
We have experimentally demonstrated a 200-Gb/s DMT signal transmission over 2-km or 10-km SSMF with bit loading or entropy loading using a 23-GHz MZM, respectively. The BER is below 20% SD-FEC threshold.
{"title":"Demonstration of 200-Gb/s DMT Signal Using Entropy Loading","authors":"Qun-Ying Liu, Jing Zhang, Shaohua Hu, Taowei Jin, Mingyue Zhu, K. Qiu, X. Yi","doi":"10.1109/ICOCN53177.2021.9563740","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563740","url":null,"abstract":"We have experimentally demonstrated a 200-Gb/s DMT signal transmission over 2-km or 10-km SSMF with bit loading or entropy loading using a 23-GHz MZM, respectively. The BER is below 20% SD-FEC threshold.","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":"85972618","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/ICOCN53177.2021.9563741
Shidi Liu, Tianyu Yang, M. Tian, Liang Zhang, Yuming Dong
An anti-resonant hollow core fiber with an ultra-wide bandwidth of single-polarization single-mode (SPSM) operation is realized and analyzed in this paper. Double-ring circular cladding structure is introduced to control the reflection area and suppress high-order modes for the proposed fiber. To achieve SPSM behavior, an epsilon negative (ENG) material is fully filled in the selected cladding tubes to manipulate the effective material absorption loss (EML). By changing the parameters of the proposed fiber, the wanted (X-polarized) and unwanted (Y-polarized and high order) modes yield large loss differences (LD), i.e., SPSM guidance. Extensive simulation results demonstrate that the fiber exhibits an extra-wide SPSM wavelength bandwidth (from 1450 nm to 1620 nm) in conditions of minimum LD > 100 dB/m.
{"title":"A broadband single-polarization single-mode hollow core anti-resonant optical fiber","authors":"Shidi Liu, Tianyu Yang, M. Tian, Liang Zhang, Yuming Dong","doi":"10.1109/ICOCN53177.2021.9563741","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563741","url":null,"abstract":"An anti-resonant hollow core fiber with an ultra-wide bandwidth of single-polarization single-mode (SPSM) operation is realized and analyzed in this paper. Double-ring circular cladding structure is introduced to control the reflection area and suppress high-order modes for the proposed fiber. To achieve SPSM behavior, an epsilon negative (ENG) material is fully filled in the selected cladding tubes to manipulate the effective material absorption loss (EML). By changing the parameters of the proposed fiber, the wanted (X-polarized) and unwanted (Y-polarized and high order) modes yield large loss differences (LD), i.e., SPSM guidance. Extensive simulation results demonstrate that the fiber exhibits an extra-wide SPSM wavelength bandwidth (from 1450 nm to 1620 nm) in conditions of minimum LD > 100 dB/m.","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":"86000519","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/ICOCN53177.2021.9563647
Linan Li, Junjie Zeng, Minglong Pu, Junqiang Ren, Lei Zhang, Ning Xin
An efficient procedure is presented for evaluating the performance implications of bandwidth narrowing due to cascaded WSSs on probabilistically shaped and uniform 64- QAM using the BW AIR. The constellation distribution that yields the optimum shaping gain in BW AIR for a given SNR depends on the extent of the narrowing.
{"title":"Bit-Wise Achievable Information Rates for Probabilistically Shaped 64-QAM in the Presence of Bandwidth Narrowing due to Cascaded Wavelength Selective Switches","authors":"Linan Li, Junjie Zeng, Minglong Pu, Junqiang Ren, Lei Zhang, Ning Xin","doi":"10.1109/ICOCN53177.2021.9563647","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563647","url":null,"abstract":"An efficient procedure is presented for evaluating the performance implications of bandwidth narrowing due to cascaded WSSs on probabilistically shaped and uniform 64- QAM using the BW AIR. The constellation distribution that yields the optimum shaping gain in BW AIR for a given SNR depends on the extent of the narrowing.","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":"85696617","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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