Pub Date : 2021-08-23DOI: 10.1109/ICOCN53177.2021.9563684
Xiaofeng Cai, P. Gu, Zuxing Zhang
In this paper, we report a passive mode-locking erbium-doped fiber laser (EDFL) that using Au triangles array (Au TA) as saturable absorber fabricated successfully on the fiber tips (OFTs) by nanosphere lithography technology. By using the nanosphere with diameter of 1300 nm, we obtain the localized surface plasmon resonance (LSPR) supported by the Au TA near the C-band (1614 nm). The stable passively mode-locked laser based on Au TA is obtained with a repetition rate of 2.08 MHz and a pulse period of 480 ns for a pump power of 704 mW at 1558 nm. These result may provide a reference in fields of nonlinear optics, micro nano sensing, medical imaging.
{"title":"Au triangles array as saturable absorber for a 1.5 $mu mathbf{m}$ passively mode-locked erbium-doped fiber laser","authors":"Xiaofeng Cai, P. Gu, Zuxing Zhang","doi":"10.1109/ICOCN53177.2021.9563684","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563684","url":null,"abstract":"In this paper, we report a passive mode-locking erbium-doped fiber laser (EDFL) that using Au triangles array (Au TA) as saturable absorber fabricated successfully on the fiber tips (OFTs) by nanosphere lithography technology. By using the nanosphere with diameter of 1300 nm, we obtain the localized surface plasmon resonance (LSPR) supported by the Au TA near the C-band (1614 nm). The stable passively mode-locked laser based on Au TA is obtained with a repetition rate of 2.08 MHz and a pulse period of 480 ns for a pump power of 704 mW at 1558 nm. These result may provide a reference in fields of nonlinear optics, micro nano sensing, medical imaging.","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":"87143534","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/ICOCN53177.2021.9563719
Liangliang Cheng, Wanlu Zheng, Like Li, Ya‐nan Zhang
A highly-sensitive multi-mode thin-core multi-mode (MTM) surface plasmon resonance (SPR) structure is proposed and applied in urea sensing. The thin-core fiber is sputtered with gold film to excite SPR, and then the probe is coated with enzyme coating that is formed by embedding urease in zeolitic imidazolate framework (ZIF -8/Urease) to realize a highly specific urea biosensor. The bind of urea and urease in the zeolitic imidazolate framework will cause the change of refractive index of the SPR probe, which will then induce the wavelength shift of SPR resonance spectrum. Experimental results demonstrated that the resonance wavelength has a good linear relationship with the urea concentration in the range of 1–10 mM, and the sensitivity can reach to 4 nm/mM.
{"title":"Highly-Sensitive SPR Urea Biosensor Based on Urease Immobilized in Metal-Organic Zeolite Framework","authors":"Liangliang Cheng, Wanlu Zheng, Like Li, Ya‐nan Zhang","doi":"10.1109/ICOCN53177.2021.9563719","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563719","url":null,"abstract":"A highly-sensitive multi-mode thin-core multi-mode (MTM) surface plasmon resonance (SPR) structure is proposed and applied in urea sensing. The thin-core fiber is sputtered with gold film to excite SPR, and then the probe is coated with enzyme coating that is formed by embedding urease in zeolitic imidazolate framework (ZIF -8/Urease) to realize a highly specific urea biosensor. The bind of urea and urease in the zeolitic imidazolate framework will cause the change of refractive index of the SPR probe, which will then induce the wavelength shift of SPR resonance spectrum. Experimental results demonstrated that the resonance wavelength has a good linear relationship with the urea concentration in the range of 1–10 mM, and the sensitivity can reach to 4 nm/mM.","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":"81683819","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/ICOCN53177.2021.9563657
Qing-Song Zhou, Jiao Zhang, M. Zhu, Weiliang Xu, Qinru Li, Jikuan Wang, Xiang Liu, Y. Zou, B. Hua, Y. Cai, M. Lei, A. Li, Weidong Tong, Yingxin Wei
A comprehensive comparison of PAM-4, CAP-16QAM and DMT-16QAM modulations is simulated in 50-Gb/s/λPON based on bandwidth-limited optics at O-band. The power budget, thermal noise performance and DSP complexity are discussed. The results show that over 29 dB power budget at 3.8×10-3 threshold can be achieved.
{"title":"Performance Comparison of Advanced Modulation Formats for Low-bandwidth optics-based 50-Gb/s/λ PON at O-band","authors":"Qing-Song Zhou, Jiao Zhang, M. Zhu, Weiliang Xu, Qinru Li, Jikuan Wang, Xiang Liu, Y. Zou, B. Hua, Y. Cai, M. Lei, A. Li, Weidong Tong, Yingxin Wei","doi":"10.1109/ICOCN53177.2021.9563657","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563657","url":null,"abstract":"A comprehensive comparison of PAM-4, CAP-16QAM and DMT-16QAM modulations is simulated in 50-Gb/s/λPON based on bandwidth-limited optics at O-band. The power budget, thermal noise performance and DSP complexity are discussed. The results show that over 29 dB power budget at 3.8×10-3 threshold can be achieved.","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":"89657627","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/ICOCN53177.2021.9563804
Ang Lee, Zhenguo Jing, Yueying Liu, Qiang Liu, Ang Li, Yang Cheung, W. Peng
Wavelength-shifting interferometry (WSI) based technology enables simultaneous high-speed demodulation of four channels of strain sensors. The four sensors are based on extrinsic Fabry-Perot interferometry (EFPI), which are constructed by splicing a section of hollow-core fiber (HCF) of about 500µm between two single-mode fiber (SMF) segments. Each sensor corresponds to one demodulation channel. We use a vernier-turned distributed Bragg reflector (VT-DBR) laser for high-speed wavelength switching, which introduces a phase shift in the wavelength domain. Based on five-step phase-shifting algorithm, phase recovery is performed with any five adjacent phase-shifting signal to achieve high-speed and stable phase demodulation. Experimental results show that this measurement system can be well applied to high-speed measurement of strain.
{"title":"Four-channel high-speed strain measurement based on VT-DBR laser","authors":"Ang Lee, Zhenguo Jing, Yueying Liu, Qiang Liu, Ang Li, Yang Cheung, W. Peng","doi":"10.1109/ICOCN53177.2021.9563804","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563804","url":null,"abstract":"Wavelength-shifting interferometry (WSI) based technology enables simultaneous high-speed demodulation of four channels of strain sensors. The four sensors are based on extrinsic Fabry-Perot interferometry (EFPI), which are constructed by splicing a section of hollow-core fiber (HCF) of about 500µm between two single-mode fiber (SMF) segments. Each sensor corresponds to one demodulation channel. We use a vernier-turned distributed Bragg reflector (VT-DBR) laser for high-speed wavelength switching, which introduces a phase shift in the wavelength domain. Based on five-step phase-shifting algorithm, phase recovery is performed with any five adjacent phase-shifting signal to achieve high-speed and stable phase demodulation. Experimental results show that this measurement system can be well applied to high-speed measurement of strain.","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":"72588368","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/ICOCN53177.2021.9563848
Zou Hong-en, Zhou Bo-Ning, Mo Li-Tao, Li Hong-wei, Huang Yan, Lv Guohui
In this paper, based on FPGA, a wide-band, high-resolution, low-cost dual-channel fiber laser beat signal demodulation system is studied, which combines mixing technology and Fast Fourier Transform (FFT). It is used to demodulate the frequency difference information of dual-channel laser signal in real time. Based on the principle of optical heterodyne detection, two single-frequency fiber lasers with central wavelengths of 1550.001~1550.601nm output dual-channel laser signals with a wavelength interval of 5~30pm are used to conduct the experiment of beat signal demodulation system. The experiment proves that the circuit can realize realtime detection of beat signal in the frequency band of 0.41~3.45GHz. Frequency resolution up to 7.6kHz.
{"title":"Research on FFT Demodulation System of Double Fiber Laser Beat Signal Based on FPGA","authors":"Zou Hong-en, Zhou Bo-Ning, Mo Li-Tao, Li Hong-wei, Huang Yan, Lv Guohui","doi":"10.1109/ICOCN53177.2021.9563848","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563848","url":null,"abstract":"In this paper, based on FPGA, a wide-band, high-resolution, low-cost dual-channel fiber laser beat signal demodulation system is studied, which combines mixing technology and Fast Fourier Transform (FFT). It is used to demodulate the frequency difference information of dual-channel laser signal in real time. Based on the principle of optical heterodyne detection, two single-frequency fiber lasers with central wavelengths of 1550.001~1550.601nm output dual-channel laser signals with a wavelength interval of 5~30pm are used to conduct the experiment of beat signal demodulation system. The experiment proves that the circuit can realize realtime detection of beat signal in the frequency band of 0.41~3.45GHz. Frequency resolution up to 7.6kHz.","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":"74972402","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/ICOCN53177.2021.9563707
Yueting Ni, J. Yuan, Shi Qiu, Yuwei Qu, Guiyao Zhou, C. Xia, Xian Zhou, B. Yan, Qiang Wu, Kuiru Wang, X. Sang, Keping Long, Chongxiu Yu
We propose a temperature sensor based on CS2-filled photonic crystal fiber. The sensor has a average sensitivity of up to 4.60nm/°C in the range of −50 to 40°C.
{"title":"CS2-Filled Solid-Core Photonic Crystal Fiber for Temperature Sensing Based on Photonic Bandgap Effect","authors":"Yueting Ni, J. Yuan, Shi Qiu, Yuwei Qu, Guiyao Zhou, C. Xia, Xian Zhou, B. Yan, Qiang Wu, Kuiru Wang, X. Sang, Keping Long, Chongxiu Yu","doi":"10.1109/ICOCN53177.2021.9563707","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563707","url":null,"abstract":"We propose a temperature sensor based on CS2-filled photonic crystal fiber. The sensor has a average sensitivity of up to 4.60nm/°C in the range of −50 to 40°C.","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":"79228039","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/ICOCN53177.2021.9563811
Z. Zheng, Xiangping Pan, W. Ji, Yanhua Dong, J. Wen, Tingyun Wang
The spectral and gain characteristics of Bi/Er codoped silica optical fiber are investigated in this paper. The fiber provides four obvious absorption peaks, which result from the energy level transitions of Er3+ and Bi iron. The fiber exhibits ultra-broadband luminescence spectrum region between 1100 and 1700 nm when pumped by 980 nm laser. And the maximum gain of the fiber can reach 34 dB at 1534 nm when the pump power is 131.3 mW. Those prove that this fiber is conducive to the application of laser and amplifier.
{"title":"Broad Spectrum Characteristics of Bi/Er co-doped Silica Optical Fiber in C-band","authors":"Z. Zheng, Xiangping Pan, W. Ji, Yanhua Dong, J. Wen, Tingyun Wang","doi":"10.1109/ICOCN53177.2021.9563811","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563811","url":null,"abstract":"The spectral and gain characteristics of Bi/Er codoped silica optical fiber are investigated in this paper. The fiber provides four obvious absorption peaks, which result from the energy level transitions of Er3+ and Bi iron. The fiber exhibits ultra-broadband luminescence spectrum region between 1100 and 1700 nm when pumped by 980 nm laser. And the maximum gain of the fiber can reach 34 dB at 1534 nm when the pump power is 131.3 mW. Those prove that this fiber is conducive to the application of laser and amplifier.","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":"75310092","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/ICOCN53177.2021.9563852
Bing Lv, Wentao Zhang, Wenzhu Huang, Fang Li
We proposed a tunable random fiber laser with compact structure. A π-FBG is used to select and adjust different lasing wavelengths. Two random Bragg grating arrays form the full-open-cavity structure. It has low lasing-threshold and several hundred picometers turning range.
{"title":"Random grating-array-based tunable random fiber laser with a full-open cavity","authors":"Bing Lv, Wentao Zhang, Wenzhu Huang, Fang Li","doi":"10.1109/ICOCN53177.2021.9563852","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563852","url":null,"abstract":"We proposed a tunable random fiber laser with compact structure. A π-FBG is used to select and adjust different lasing wavelengths. Two random Bragg grating arrays form the full-open-cavity structure. It has low lasing-threshold and several hundred picometers turning range.","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":"78659358","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/ICOCN53177.2021.9563738
Changlin Liu, Huixing Zhang, Yuan Men, A. Wen, Shuaikang Wang, W. Zeng, Wenjie Li
We present a polarization-multiplexed coherent RoF link with simple digital laser-phase-noise cancellation. In the experiments, 25-km fiber transmission of four 64-QAM microwave vector signals with error vector magnitudes (EVMs) of less than 10% is demonstrated.
{"title":"A polarization-multiplexed coherent RoF link with simple digital laser-phase-noise cancellation","authors":"Changlin Liu, Huixing Zhang, Yuan Men, A. Wen, Shuaikang Wang, W. Zeng, Wenjie Li","doi":"10.1109/ICOCN53177.2021.9563738","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563738","url":null,"abstract":"We present a polarization-multiplexed coherent RoF link with simple digital laser-phase-noise cancellation. In the experiments, 25-km fiber transmission of four 64-QAM microwave vector signals with error vector magnitudes (EVMs) of less than 10% is demonstrated.","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":"74790944","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 overcome the shortcomings of traditional humidity sensor design, a flexible inductive humidity sensor based on ethyl cellulose hair modification is proposed. The thermal purification working mode of the humidity sensor is studied, and its performance is tested by the data acquisition system. The experiment shows, the sensitivity of the sensor is 118.92Hz/%RH, Response time is less than 700s, Dampness is 3%RH, Weekly drift is within ±3%RH. The flexible inductive humidity sensor developed in this paper has high sensitivity performance, which verifies that a new method of humidity testing by inductance. It is more suitable for wearable scenarios and has a wide range of potential for humidity detection applications.
{"title":"Research on Ethyl Cellulose Flexible Inductive Humidity Sensor Based on Biomass Hair Modification","authors":"Linlin Guo, Hongquan Zhang, Junchang Yu, Yongyi Sun, Ligang Dou, Tingting Zhao","doi":"10.1109/ICOCN53177.2021.9563672","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563672","url":null,"abstract":"In order to overcome the shortcomings of traditional humidity sensor design, a flexible inductive humidity sensor based on ethyl cellulose hair modification is proposed. The thermal purification working mode of the humidity sensor is studied, and its performance is tested by the data acquisition system. The experiment shows, the sensitivity of the sensor is 118.92Hz/%RH, Response time is less than 700s, Dampness is 3%RH, Weekly drift is within ±3%RH. The flexible inductive humidity sensor developed in this paper has high sensitivity performance, which verifies that a new method of humidity testing by inductance. It is more suitable for wearable scenarios and has a wide range of potential for humidity detection applications.","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":"75021639","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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