A broadband vector mode converter is proposed based on cascaded long-period fiber gratings in elliptical ring-core fiber. The 20-dB bandwidths of all vector mode (TE01, HEeven21,HEodd21 and TM01) converters are around 100 nm.
{"title":"Vector Mode Converters Based on Cascaded LPFGs in Elliptical Ring-Core Fiber","authors":"Xiaoqian Wang, Hu Zhang, Jingxuan Yang, Xiaoguang Zhang, Lixia Xi, Wenbo Zhang, Xianfeng Tang","doi":"10.1109/ICOCN53177.2021.9563744","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563744","url":null,"abstract":"A broadband vector mode converter is proposed based on cascaded long-period fiber gratings in elliptical ring-core fiber. The 20-dB bandwidths of all vector mode (TE<inf>01</inf>, HE<sup>even</sup><inf>21</inf>,HE<sup>odd</sup><inf>21</inf> and TM<inf>01</inf>) converters are around 100 nm.","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":"74657958","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/ICOCN53177.2021.9563670
Xuebin Chen, Ting Shi, Shengdong Zhang
The third component has a strong effect on light absorption, energy level, and morphology of ternary blend film for all nonfullerene acceptors. Thus, the choice of the third component is required reasonably made. In this study, nonfullerene acceptor IT-2Cl and IT-4Cl are employed as the additional components to enhance PTB7-Th: 6TIC-4F based solar cells. IT-2Cl with a higher LUMO energy level could effectively elevate the voltages of ternary devices. IT-4Cl provides good complementary absorption to PTB7-Th and 6TIC-4F, which benefits for improving Jsc. In addition, both IT-2Cl and IT-4Cl improve the morphologies of the blends and thus help to enhance charge collection and transport of ternary devices. As a result, enhanced PCE values of 11.4% and 11.3% can be achieved for ternary solar cells with the addition of IT-2Cl and IT-4Cl, respectively. These results provide a guideline to select the third component for constructing high-efficiency ternary solar cells with two nonfullerenes.
{"title":"Ternary solar cells with polymer donor and two nonfullerene acceptors","authors":"Xuebin Chen, Ting Shi, Shengdong Zhang","doi":"10.1109/ICOCN53177.2021.9563670","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563670","url":null,"abstract":"The third component has a strong effect on light absorption, energy level, and morphology of ternary blend film for all nonfullerene acceptors. Thus, the choice of the third component is required reasonably made. In this study, nonfullerene acceptor IT-2Cl and IT-4Cl are employed as the additional components to enhance PTB7-Th: 6TIC-4F based solar cells. IT-2Cl with a higher LUMO energy level could effectively elevate the voltages of ternary devices. IT-4Cl provides good complementary absorption to PTB7-Th and 6TIC-4F, which benefits for improving Jsc. In addition, both IT-2Cl and IT-4Cl improve the morphologies of the blends and thus help to enhance charge collection and transport of ternary devices. As a result, enhanced PCE values of 11.4% and 11.3% can be achieved for ternary solar cells with the addition of IT-2Cl and IT-4Cl, respectively. These results provide a guideline to select the third component for constructing high-efficiency ternary solar cells with two nonfullerenes.","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":"74809705","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/ICOCN53177.2021.9563858
Runxiao Chen, Jun He, Xizhen Xu, C. Liao, Yiping Wang
We propose and experimentally demonstrate a slit beam shaping method for fabricating Point-by-Point (PbP) highly localized fiber Bragg gratings (FBGs). The influences of the pulse energy and the slit width were studied, and after optimizing these parameters, the enlarged refractive index modulation (RIM) was produced. These RIMs were precisely assembled in a fiber core, generating highly localized FBGs with a comb of enhanced cladding mode resonances (30 dB) and a low insertion loss (0.3 dB). Note that the cladding mode resonance has a wide span of 240 nm in transmission spectrum. Furthermore, highly localized tilted fiber Bragg gratings (TFBGs) with various tilted angle can be fabricated to obtain a comb of selective enhanced cladding modes, via adjusting the tilted angle of the slit. Moreover, we investigated the thermal characteristics of the highly localized FBGs. The results show that such a device can withstand a temperature of 1000 °C.
{"title":"Silt-Beam Shaping Method for Femtosecond Laser Point-by-Point Inscription of Highly Localized Fiber Bragg Gratings with Enhanced Cladding Modes","authors":"Runxiao Chen, Jun He, Xizhen Xu, C. Liao, Yiping Wang","doi":"10.1109/ICOCN53177.2021.9563858","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563858","url":null,"abstract":"We propose and experimentally demonstrate a slit beam shaping method for fabricating Point-by-Point (PbP) highly localized fiber Bragg gratings (FBGs). The influences of the pulse energy and the slit width were studied, and after optimizing these parameters, the enlarged refractive index modulation (RIM) was produced. These RIMs were precisely assembled in a fiber core, generating highly localized FBGs with a comb of enhanced cladding mode resonances (30 dB) and a low insertion loss (0.3 dB). Note that the cladding mode resonance has a wide span of 240 nm in transmission spectrum. Furthermore, highly localized tilted fiber Bragg gratings (TFBGs) with various tilted angle can be fabricated to obtain a comb of selective enhanced cladding modes, via adjusting the tilted angle of the slit. Moreover, we investigated the thermal characteristics of the highly localized FBGs. The results show that such a device can withstand a temperature of 1000 °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":"74962958","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/ICOCN53177.2021.9563891
Junyu Wei, Liuxin Sun, Honghe Huang, Shaojing Su, Xiaojun Guo, Xiaoyong Sun
An integrated platform for multiple parameters intelligent monitoring of dense wavelength division multiplexing (DWDM) optical fiber signal by utilizing the advanced telecom computing architecture (ATCA) is proposed and discussed in detail.
{"title":"RESEARCH ON INTEGRATED PLATFORM FOR MULTIPLE PARAMETERS INTELLIGENT MONITORING OF DWDM OPTICAL FIBER SIGNAL","authors":"Junyu Wei, Liuxin Sun, Honghe Huang, Shaojing Su, Xiaojun Guo, Xiaoyong Sun","doi":"10.1109/ICOCN53177.2021.9563891","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563891","url":null,"abstract":"An integrated platform for multiple parameters intelligent monitoring of dense wavelength division multiplexing (DWDM) optical fiber signal by utilizing the advanced telecom computing architecture (ATCA) is proposed and discussed in detail.","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":"74193640","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/ICOCN53177.2021.9563732
Geng Zhang, Yanan Wang, Huixia Ding, Wei Gao, Kaiqiang Gao, Gang Ma
This paper proposes a critical service optical network layer recovery mechanism based on fault prediction and fault model assistance and deep learning technology, improving the success rate of critical service recovery.
{"title":"Deep Learning based Optical Network Layer Recovery Mechanism for Critical Services of Power Communication Network","authors":"Geng Zhang, Yanan Wang, Huixia Ding, Wei Gao, Kaiqiang Gao, Gang Ma","doi":"10.1109/ICOCN53177.2021.9563732","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563732","url":null,"abstract":"This paper proposes a critical service optical network layer recovery mechanism based on fault prediction and fault model assistance and deep learning technology, improving the success rate of critical service recovery.","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":"72680534","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/ICOCN53177.2021.9563629
Haiying Zhang, Min Zhang, Gui Fang, Yanhua Dong
A novel PbS/PbSe co-doped fiber is fabricated by the modified chemical vapor deposition (MCVD) technology. Its absorption and luminescence characteristics are investigated. There are two absorption peaks at 773 and 1161 nm, respectively. The luminescence spectrum ranges from 1000 to 1350 nm. In addition, the intensity of luminescence is related to pump power.
{"title":"Broadband luminescence characteristics of PbS/PbSe co-doped silica fiber","authors":"Haiying Zhang, Min Zhang, Gui Fang, Yanhua Dong","doi":"10.1109/ICOCN53177.2021.9563629","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563629","url":null,"abstract":"A novel PbS/PbSe co-doped fiber is fabricated by the modified chemical vapor deposition (MCVD) technology. Its absorption and luminescence characteristics are investigated. There are two absorption peaks at 773 and 1161 nm, respectively. The luminescence spectrum ranges from 1000 to 1350 nm. In addition, the intensity of luminescence is related to pump power.","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":"74833749","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/ICOCN53177.2021.9563653
Zhenhong Gao, Yongjun Wang, Lu Han, Chao Li, X. Xin
This paper proposes a new approach to producing optical vortex filter by using a Sinc function, called the Sinc spatial filter (SSF). We prove that the SSF can realize a high contrast edge enhancement.
{"title":"Image Edge Enhancement Technique Using a Novel Optical Vortex Filtering","authors":"Zhenhong Gao, Yongjun Wang, Lu Han, Chao Li, X. Xin","doi":"10.1109/ICOCN53177.2021.9563653","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563653","url":null,"abstract":"This paper proposes a new approach to producing optical vortex filter by using a Sinc function, called the Sinc spatial filter (SSF). We prove that the SSF can realize a high contrast edge enhancement.","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":"77361107","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/ICOCN53177.2021.9563674
Lewen Zhou, Pengbai Xu, Xinyong Dong
A multi-wavelength thulium-doped fiber laser based on a Sagnac loop mirror is demonstrated. By increasing pump power and adjusting the state of polarization, stable laser outputs with single, double, three, four or five wavelengths are realized within the spectral range between 1954 and 1975 nm. The laser has a high side-mode suppression ratio (SMSR) of 40–50 dB.
{"title":"Multi-wavelength thulium-doped fiber laser by using Sagnac loop mirror","authors":"Lewen Zhou, Pengbai Xu, Xinyong Dong","doi":"10.1109/ICOCN53177.2021.9563674","DOIUrl":"https://doi.org/10.1109/ICOCN53177.2021.9563674","url":null,"abstract":"A multi-wavelength thulium-doped fiber laser based on a Sagnac loop mirror is demonstrated. By increasing pump power and adjusting the state of polarization, stable laser outputs with single, double, three, four or five wavelengths are realized within the spectral range between 1954 and 1975 nm. The laser has a high side-mode suppression ratio (SMSR) of 40–50 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":"72944761","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":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":"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":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":"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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