Pub Date : 2021-08-23DOI: 10.1109/ICOCN53177.2021.9563885
Xiu-rong Ma, Jingjing Li, Yunlong Shan, Yu Chen
In this paper, a new training symbol structure consists of two adjacent training symbols is proposed to estimate transmitter in-phase/quadrature(IQ) mismatch and channel information in coherent optical orthogonal frequency division multiplexing (CO-OFDM) system. Each training symbol of the proposed scheme has two subsets which are mirror images of each other, and one subset values are set to zeros. Simulation in high speed gives the results that proved the proposed scheme increased the system performance.
{"title":"A novel training symbol structure design for transmitter IQ mismatch estimation and compensation in CO-OFDM system","authors":"Xiu-rong Ma, Jingjing Li, Yunlong Shan, Yu Chen","doi":"10.1109/ICOCN53177.2021.9563885","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563885","url":null,"abstract":"In this paper, a new training symbol structure consists of two adjacent training symbols is proposed to estimate transmitter in-phase/quadrature(IQ) mismatch and channel information in coherent optical orthogonal frequency division multiplexing (CO-OFDM) system. Each training symbol of the proposed scheme has two subsets which are mirror images of each other, and one subset values are set to zeros. Simulation in high speed gives the results that proved the proposed scheme increased the system performance.","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":"76880180","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/ICOCN53177.2021.9563682
Qi Wu, Yixiao Zhu, Weisheng Hu
We propose a targeted piecewise feedforward neural network (PW-FNN) to mitigate both the linear and nonlinear distortions in intensity modulation direct detection (IM-DD) system based on direct modulated laser (DML). By this equalizer, a 56Gbit/s pulse amplitude modulation (PAM)-4 transmission over 30km standard single-mode fiber (SSMF) is experimentally demonstrated with a 16.8GHz DML with bit error rate (BER) below 7% hard-decision forward error correction (HD-FEC) threshold of 3.8 × 10−3. Compared with Volttera and traditional FNN equalizer, the proposed PW-FNN equalizer exhibits more than 2dB receiver sensitivity improvement. The experimental results validate that the proposed PW-FNN can be a promising solution for short reach DML-based IM-DD system.
{"title":"Piecewise Feedforward Neural Network Based Nonlinear Equalizer for Short-Reach DML-DD System","authors":"Qi Wu, Yixiao Zhu, Weisheng Hu","doi":"10.1109/ICOCN53177.2021.9563682","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563682","url":null,"abstract":"We propose a targeted piecewise feedforward neural network (PW-FNN) to mitigate both the linear and nonlinear distortions in intensity modulation direct detection (IM-DD) system based on direct modulated laser (DML). By this equalizer, a 56Gbit/s pulse amplitude modulation (PAM)-4 transmission over 30km standard single-mode fiber (SSMF) is experimentally demonstrated with a 16.8GHz DML with bit error rate (BER) below 7% hard-decision forward error correction (HD-FEC) threshold of 3.8 × 10−3. Compared with Volttera and traditional FNN equalizer, the proposed PW-FNN equalizer exhibits more than 2dB receiver sensitivity improvement. The experimental results validate that the proposed PW-FNN can be a promising solution for short reach DML-based IM-DD 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":"75135131","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/ICOCN53177.2021.9563718
Jiu Min, Zhen Zeng, Yuchong Su, Zhiyao Zhang, Lingjie Zhang, Yong Liu
A microwave photonic frequency conversion system based on a dual-loop optoelectronic oscillator (OEO) for B5G/6G communication is proposed and experimentally demonstrated. In this scheme, a local oscillation (LO) signal with low phase noise and a high side-mode suppression ratio is generated by a dual-loop OEO. The up- and down-conversion state can be switched by changing the bias voltages of the dual-polarization dual-drive Mach-Zehnder modulator (DP-DDMZM). In the experiment, the intermediate frequency (IF) signal at 6 GHz is up-converted to the radio frequency (RF) signal at 26.0025 GHz when the LO signal is with a frequency of 20.0025 GHz. Meanwhile, the RF signal at 14 GHz is downconverted to the IF signal at 6 GHz by using the same LO signal. The proposed scheme can meet the requirement of the B5G/6G wireless communication system with the higher operation band.
{"title":"Microwave Photonic Frequency Conversion System Based on a Dual-loop Optoelectronic Oscillator for B5G/6G Communication","authors":"Jiu Min, Zhen Zeng, Yuchong Su, Zhiyao Zhang, Lingjie Zhang, Yong Liu","doi":"10.1109/ICOCN53177.2021.9563718","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563718","url":null,"abstract":"A microwave photonic frequency conversion system based on a dual-loop optoelectronic oscillator (OEO) for B5G/6G communication is proposed and experimentally demonstrated. In this scheme, a local oscillation (LO) signal with low phase noise and a high side-mode suppression ratio is generated by a dual-loop OEO. The up- and down-conversion state can be switched by changing the bias voltages of the dual-polarization dual-drive Mach-Zehnder modulator (DP-DDMZM). In the experiment, the intermediate frequency (IF) signal at 6 GHz is up-converted to the radio frequency (RF) signal at 26.0025 GHz when the LO signal is with a frequency of 20.0025 GHz. Meanwhile, the RF signal at 14 GHz is downconverted to the IF signal at 6 GHz by using the same LO signal. The proposed scheme can meet the requirement of the B5G/6G wireless communication system with the higher operation band.","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":"74807112","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/ICOCN53177.2021.9563688
Yanmei Tang, Qianqian Zhang, Xinyong Dong, C. Chan
Optical fiber copper (II) ions (Cu2+) sensor based on an optical fiber Mach-Zehnder interferometer (MZI) formed by cascading two micro fibers is proposed and experimentally demonstrated. The MZI is surface-functionized by coating a chitosan/polyacrylic acid multilayer film using a layer-by-layer self-assembly technology. The achieved measurement sensitivity and detection limit are 62.44 dB/mM and 0.0086 mM, respectively, when the copper (II) ions concentration is between 0.005 mMol and 0.1 mMol.
{"title":"Cu2+ Detecting by Using Optical Fiber Mach-Zehnder Interferometer Coated with CS/PAA","authors":"Yanmei Tang, Qianqian Zhang, Xinyong Dong, C. Chan","doi":"10.1109/ICOCN53177.2021.9563688","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563688","url":null,"abstract":"Optical fiber copper (II) ions (Cu2+) sensor based on an optical fiber Mach-Zehnder interferometer (MZI) formed by cascading two micro fibers is proposed and experimentally demonstrated. The MZI is surface-functionized by coating a chitosan/polyacrylic acid multilayer film using a layer-by-layer self-assembly technology. The achieved measurement sensitivity and detection limit are 62.44 dB/mM and 0.0086 mM, respectively, when the copper (II) ions concentration is between 0.005 mMol and 0.1 mMol.","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":"73265198","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/ICOCN53177.2021.9563796
M. Lei, A. Li, Y. Cai, Jiao Zhang, B. Hua, Y. Zou, Weiliang Xu, Jikuan Wang, Jianjun Yu, M. Zhu
The similarity of the RF front-ends between wireless communications and radar systems drives the integration of communication and sensing. An integrated wireless communication and mmW radar sensing system for intelligent vehicle driving is proposed here. The proposed system is implemented by photonic mixing and frequency doubling via a sharing transmitter, which is characterized by simple and compact structure. A 2.3-Gbit/s error-free BPSK signal at Ku-band is successfully generated. Besides, accurate range and velocity detection can be simultaneously realized by a frequency-doubled dual-chirp LFM signal at mmW-band.
{"title":"Integrated Wireless Communication and mmW Radar Sensing System for Intelligent Vehicle Driving Enabled by Photonics","authors":"M. Lei, A. Li, Y. Cai, Jiao Zhang, B. Hua, Y. Zou, Weiliang Xu, Jikuan Wang, Jianjun Yu, M. Zhu","doi":"10.1109/ICOCN53177.2021.9563796","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563796","url":null,"abstract":"The similarity of the RF front-ends between wireless communications and radar systems drives the integration of communication and sensing. An integrated wireless communication and mmW radar sensing system for intelligent vehicle driving is proposed here. The proposed system is implemented by photonic mixing and frequency doubling via a sharing transmitter, which is characterized by simple and compact structure. A 2.3-Gbit/s error-free BPSK signal at Ku-band is successfully generated. Besides, accurate range and velocity detection can be simultaneously realized by a frequency-doubled dual-chirp LFM signal at mmW-band.","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":"74211418","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}
Passive radar based on DTMB signal is studied in this paper. Firstly, the characteristics of signal spectrum and ambiguity function are analyzed in detail. Considering that the waveform and parameters of DTMB signal are not specially designed for radar system, thus after coherent processing, the ambiguity function will output lots of sub peaks, which directly reduce the performance of target detection. Then, a side peak suppression method is proposed. Finally, the feasibility of DTMB passive radar detecting for space targets is researched. Simulation results verify effectiveness of the related analysis.
{"title":"PASSIVE RADAR ANALYSIS USING DTMB SIGNAL","authors":"Tianyun Wang, Bing Liu, Xuelin Wang, Xianchun Xu, Q. Wei","doi":"10.1109/ICOCN53177.2021.9563834","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563834","url":null,"abstract":"Passive radar based on DTMB signal is studied in this paper. Firstly, the characteristics of signal spectrum and ambiguity function are analyzed in detail. Considering that the waveform and parameters of DTMB signal are not specially designed for radar system, thus after coherent processing, the ambiguity function will output lots of sub peaks, which directly reduce the performance of target detection. Then, a side peak suppression method is proposed. Finally, the feasibility of DTMB passive radar detecting for space targets is researched. Simulation results verify effectiveness of the related analysis.","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":"82185983","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/ICOCN53177.2021.9563660
Shanglin Yang, Hao Jia, Xin Fu, Lin Yang
This paper demonstrates a series of high-order mode waveguide bends with an ultra-compact footprint and high performance. Gradient-based inverse design with level set method is utilized endow the device excellent critical dimension control.
{"title":"Ultracompct and High Performance Silicon High-order Mode Waveguide Bends","authors":"Shanglin Yang, Hao Jia, Xin Fu, Lin Yang","doi":"10.1109/ICOCN53177.2021.9563660","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563660","url":null,"abstract":"This paper demonstrates a series of high-order mode waveguide bends with an ultra-compact footprint and high performance. Gradient-based inverse design with level set method is utilized endow the device excellent critical dimension control.","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":"82606949","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/ICOCN53177.2021.9563867
Zhao Zhang, Kun Liu, Junfeng Jiang, Tianhua Xu, Shuanghao Wang, Jinying Ma, Jianying Jing, Wenlin Zhang, Tiegen Liu
The newly sensitivity enhancement mechanism about Au & black phosphorus composite film based on surface plasma resonance (SPR) fiber sensor. The sensor was fabricated by a 35 nm aurum (Au) film and 5–10 nm black phosphorus (BP) thin film, which integrated to the surface of fiber. The sensitivity enhancement level can reach as high as 140 % compared with the common Au SPR sensor at the 1.35 refractive index (RI) region. In addition, this newly style fiber structure is extremely suitable for the biochemical sensing.
{"title":"The sensitivity enhancement based on the Au & black phosphorus composite film for the surface plasma resonance fiber sensor","authors":"Zhao Zhang, Kun Liu, Junfeng Jiang, Tianhua Xu, Shuanghao Wang, Jinying Ma, Jianying Jing, Wenlin Zhang, Tiegen Liu","doi":"10.1109/ICOCN53177.2021.9563867","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563867","url":null,"abstract":"The newly sensitivity enhancement mechanism about Au & black phosphorus composite film based on surface plasma resonance (SPR) fiber sensor. The sensor was fabricated by a 35 nm aurum (Au) film and 5–10 nm black phosphorus (BP) thin film, which integrated to the surface of fiber. The sensitivity enhancement level can reach as high as 140 % compared with the common Au SPR sensor at the 1.35 refractive index (RI) region. In addition, this newly style fiber structure is extremely suitable for the biochemical sensing.","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":"82425370","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/ICOCN53177.2021.9563756
Cheng Ju, Qi Zhang, Ying Tao, Yunxiao Zu, Dong Chen, Qinghua Tian, Feng Tian, Jinxi Qian, Mai Yang
In this paper, a resource reservation algorithm based on ARIMA model with balanced performance (RABP) is proposed. The algorithm uses Auto Regressive Integrated Moving Average (ARIMA) model to predict the change trend of future on-board traffic to reserve reasonable spectrum resources in advance and evaluate the impact of resource allocation scheme on system performance. The simulation results show that the performance of resource utilization and communication blocking rate are improved.
{"title":"Satellite Resource Reservation Algorithm Based on ARIMA Model with Balanced Performance","authors":"Cheng Ju, Qi Zhang, Ying Tao, Yunxiao Zu, Dong Chen, Qinghua Tian, Feng Tian, Jinxi Qian, Mai Yang","doi":"10.1109/ICOCN53177.2021.9563756","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563756","url":null,"abstract":"In this paper, a resource reservation algorithm based on ARIMA model with balanced performance (RABP) is proposed. The algorithm uses Auto Regressive Integrated Moving Average (ARIMA) model to predict the change trend of future on-board traffic to reserve reasonable spectrum resources in advance and evaluate the impact of resource allocation scheme on system performance. The simulation results show that the performance of resource utilization and communication blocking rate are improved.","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":"82565349","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/ICOCN53177.2021.9563778
Jianying Jing, Kun Liu, Junfeng Jiang, Tianhua Xu, Shuanghao Wang, Jinying Ma, Zhao Zhang, Wenlin Zhang, Tiegen Liu
An optical fiber waveguide coupled surface plasmon resonance sensor is demonstrated. The spectral properties of the sensor including full width at half-maximum and resonance depth are theoretically investigated.
{"title":"Theoretical Investigation of Optical Fiber Waveguide Coupled Surface Plasmon Resonance Sensor with Narrow Full Width at Half-Maximum","authors":"Jianying Jing, Kun Liu, Junfeng Jiang, Tianhua Xu, Shuanghao Wang, Jinying Ma, Zhao Zhang, Wenlin Zhang, Tiegen Liu","doi":"10.1109/ICOCN53177.2021.9563778","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563778","url":null,"abstract":"An optical fiber waveguide coupled surface plasmon resonance sensor is demonstrated. The spectral properties of the sensor including full width at half-maximum and resonance depth are theoretically investigated.","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":"82974349","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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