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2018 IEEE British and Irish Conference on Optics and Photonics (BICOP)最新文献

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Improving Data Transmission in Fiber Optics by Detecting Scratches on the Fiber End Face 通过检测光纤端面划痕改善光纤数据传输
2018 IEEE British and Irish Conference on Optics and Photonics (BICOP) Pub Date : 2018-12-01 DOI: 10.1109/BICOP.2018.8658280
N. Vahabi, Dongye Yang, David R. Selviah
{"title":"Improving Data Transmission in Fiber Optics by Detecting Scratches on the Fiber End Face","authors":"N. Vahabi, Dongye Yang, David R. Selviah","doi":"10.1109/BICOP.2018.8658280","DOIUrl":"https://doi.org/10.1109/BICOP.2018.8658280","url":null,"abstract":"Optical fiber sustains scratches, pits and other types of defects on the end face during the polishing process. Hence, fiber end face inspection is a significant process for fiber manufacturers when analysing the performance of a fiber. In order to identify the defects present on the fiber end face, a novel model is presented in this paper. Our model combined filtering methods to enhance the contrast of the images so scratches can be successfully detected. However, because the photos have been taken with different gains and exposures, they can not be processed with standard image processing techniques. We developed a method to analyse the defects intensity that could be located under different gains and exposures. We established that the images taken with the high gains and exposures performed well for optical fiber defect recognition.","PeriodicalId":145258,"journal":{"name":"2018 IEEE British and Irish Conference on Optics and Photonics (BICOP)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127989064","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}
引用次数: 2
In-Fibre Diffraction Grating for Beam Steering Indoor Optical Wireless Communication 用于光束导向室内无线光通信的光纤衍射光栅
2018 IEEE British and Irish Conference on Optics and Photonics (BICOP) Pub Date : 2018-12-01 DOI: 10.1109/BICOP.2018.8658291
Chao Wang, Guoqing Wang, Chaitanya K. Mididoddi
{"title":"In-Fibre Diffraction Grating for Beam Steering Indoor Optical Wireless Communication","authors":"Chao Wang, Guoqing Wang, Chaitanya K. Mididoddi","doi":"10.1109/BICOP.2018.8658291","DOIUrl":"https://doi.org/10.1109/BICOP.2018.8658291","url":null,"abstract":"In-fibre diffraction based on 45° tilted fibre grating enables high-efficiency wavelength-controlled laser beam steering for indoor optical wireless communication with unique features of low-loss and seamless integration with existing fibre-to-home networks. In addition, ultrafast user localization (50 million scans per second) based on real-time wavelength monitoring is demonstrated.","PeriodicalId":145258,"journal":{"name":"2018 IEEE British and Irish Conference on Optics and Photonics (BICOP)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134338166","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}
引用次数: 0
Carbon Nanotubes Deposited Optical Fibers for Continuous Refractive Index Sensing Applications 碳纳米管沉积光纤在连续折射率传感中的应用
2018 IEEE British and Irish Conference on Optics and Photonics (BICOP) Pub Date : 2018-12-01 DOI: 10.1109/BICOP.2018.8658301
K. Chow, Iek Cheong Lam
{"title":"Carbon Nanotubes Deposited Optical Fibers for Continuous Refractive Index Sensing Applications","authors":"K. Chow, Iek Cheong Lam","doi":"10.1109/BICOP.2018.8658301","DOIUrl":"https://doi.org/10.1109/BICOP.2018.8658301","url":null,"abstract":"An optical fiber-based refractive index (RI) sensing probe fabricated through optical deposition of carbon nanotubes (CNTs) onto the cleaved end face of a multimode fiber (MMF) segment, fusion spliced at one end to a single mode fiber (SMF), is presented. The interference of the excited higher order modes in the MMF segment with the fundamental mode led to the formation of various spectral features in the resulting output spectrum which were then used as reference points for RI measurements. RI perturbations in the external environment of the sensing probe could then be characterized by variations in intensity of these spectral features with little wavelength dependence. The deposited CNTs extended the continuous measurement range of the sensor and the achievable sensitivity was calculated to be approximately 35.8 dB/RIU for the RI range of 1.33–1.40 and approximately 98.8 dB/RIU for the RI range of 1.40–1.46. The sensing probe also exhibited good stability with little fluctuations in intensity of the output spectrum for a constant RI.","PeriodicalId":145258,"journal":{"name":"2018 IEEE British and Irish Conference on Optics and Photonics (BICOP)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123770347","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}
引用次数: 0
Comparative Studies of Thulium and Erbium-doped Fiber Amplifiers for Dynamic Optical WDM Networks 动态光WDM网络中掺铥和掺铒光纤放大器的比较研究
2018 IEEE British and Irish Conference on Optics and Photonics (BICOP) Pub Date : 2018-12-01 DOI: 10.1109/BICOP.2018.8658309
M. Khamis, K. Ennser
{"title":"Comparative Studies of Thulium and Erbium-doped Fiber Amplifiers for Dynamic Optical WDM Networks","authors":"M. Khamis, K. Ennser","doi":"10.1109/BICOP.2018.8658309","DOIUrl":"https://doi.org/10.1109/BICOP.2018.8658309","url":null,"abstract":"In this study, a two-level laser system model is presented to simulate the dynamic performance of the thulium-doped fiber amplifier around transmission window. We used the numerical methods to investigate the influences of channels drop in thulium-doped fiber amplifier performance and compare to that in an erbium-doped fiber amplifier at 1.55.μm region. Our findings revealed that the dynamic performance of a thulium-doped amplifier is smaller than for an erbium-doped fiber amplifier. The optical gain-clamping technique is proposed to reduce the effects of power transients in both optical amplifiers due to the channels drop in reconfigurable WDM system. We illustrate that the optical gain-clamped technique is more efficient when applied to thulium-doped fiber amplifier than erbium-doped fiber amplifier. As a result, the thulium-doped fiber amplifier shows greater stability with a larger broadband to enable high capacity WDM transmission.","PeriodicalId":145258,"journal":{"name":"2018 IEEE British and Irish Conference on Optics and Photonics (BICOP)","volume":"40 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126175747","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}
引用次数: 3
Water Resistant Caesium Lead Bromide Crystal Composites 防水铯铅溴化晶体复合材料
2018 IEEE British and Irish Conference on Optics and Photonics (BICOP) Pub Date : 2018-12-01 DOI: 10.1109/BICOP.2018.8658335
Pedro Ubano Alves, I. Watson, N. Laurand, M. Dawson
{"title":"Water Resistant Caesium Lead Bromide Crystal Composites","authors":"Pedro Ubano Alves, I. Watson, N. Laurand, M. Dawson","doi":"10.1109/BICOP.2018.8658335","DOIUrl":"https://doi.org/10.1109/BICOP.2018.8658335","url":null,"abstract":"Water-resistant luminescent polymer composites with CsPbBr<inf>3</inf> quantum dots in Cs<inf>4</inf>PbBr<inf>6</inf> crystals (CsPbBr<inf>3</inf>@Cs<inf>4</inf>PbBr<inf>6</inf>) are reported. These color-converting materials enable a narrow-band green emission with fast dynamics and are therefore a potential alternative to phosphors, mainly for applications that require a fast modulation of light.","PeriodicalId":145258,"journal":{"name":"2018 IEEE British and Irish Conference on Optics and Photonics (BICOP)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121953835","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}
引用次数: 2
Overcoming the time-bandwidth limit 克服时间-带宽限制
2018 IEEE British and Irish Conference on Optics and Photonics (BICOP) Pub Date : 2018-12-01 DOI: 10.1109/BICOP.2018.8658316
S. Schulz, D. Grassani, C. Ivan, S. Fabbri, J. Upham, R. Boyd, K. Tsakmakidis, C. Brès
{"title":"Overcoming the time-bandwidth limit","authors":"S. Schulz, D. Grassani, C. Ivan, S. Fabbri, J. Upham, R. Boyd, K. Tsakmakidis, C. Brès","doi":"10.1109/BICOP.2018.8658316","DOIUrl":"https://doi.org/10.1109/BICOP.2018.8658316","url":null,"abstract":"We are so accustomed to the time-bandwidth limit that we often take it to be a fundamental relation that cannot be overcome. Contrary to this belief we here propose that the storage/delay time of a system can in fact be decoupled from the operating bandwidth, by breaking Lorentz reciprocity. We discuss two different mechanisms for breaking Lorentz reciprocity and show that - in the correct system layout - both can result in systems that exceed the conventional time bandwidth limit by orders of magnitude.","PeriodicalId":145258,"journal":{"name":"2018 IEEE British and Irish Conference on Optics and Photonics (BICOP)","volume":"282 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127489970","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}
引用次数: 0
BICOP 2018 Invited Speakers BICOP 2018特邀演讲嘉宾
2018 IEEE British and Irish Conference on Optics and Photonics (BICOP) Pub Date : 2018-12-01 DOI: 10.1109/bicop.2018.8658319
{"title":"BICOP 2018 Invited Speakers","authors":"","doi":"10.1109/bicop.2018.8658319","DOIUrl":"https://doi.org/10.1109/bicop.2018.8658319","url":null,"abstract":"","PeriodicalId":145258,"journal":{"name":"2018 IEEE British and Irish Conference on Optics and Photonics (BICOP)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130258333","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}
引用次数: 0
BICOP 2018 Schedule BICOP 2018日程安排
2018 IEEE British and Irish Conference on Optics and Photonics (BICOP) Pub Date : 2018-12-01 DOI: 10.1109/bicop.2018.8658273
{"title":"BICOP 2018 Schedule","authors":"","doi":"10.1109/bicop.2018.8658273","DOIUrl":"https://doi.org/10.1109/bicop.2018.8658273","url":null,"abstract":"","PeriodicalId":145258,"journal":{"name":"2018 IEEE British and Irish Conference on Optics and Photonics (BICOP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130828713","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}
引用次数: 0
Towards 3D optical integration by micro-transfer printing of ultra-thin membrane devices 超薄薄膜器件微转移印刷实现三维光学集成
2018 IEEE British and Irish Conference on Optics and Photonics (BICOP) Pub Date : 2018-12-01 DOI: 10.1109/BICOP.2018.8658325
J. McPhillimy, C. Klitis, P. Hill, S. May, B. Guilhabert, M. Dawson, M. Sorel, M. Strain
{"title":"Towards 3D optical integration by micro-transfer printing of ultra-thin membrane devices","authors":"J. McPhillimy, C. Klitis, P. Hill, S. May, B. Guilhabert, M. Dawson, M. Sorel, M. Strain","doi":"10.1109/BICOP.2018.8658325","DOIUrl":"https://doi.org/10.1109/BICOP.2018.8658325","url":null,"abstract":"Transfer printing is a micro-assembly technique that has been used to demonstrate hybrid material device integration using membranes, typically of a few microns in thickness. In order to target full 3D integration of integrated photonic devices, here we present the fabrication and printing of membranes with dimensions down to 10′s of nanometres. Both sacrificial layer etching and assembly of free standing platelets onto support substrates have been developed to allow membrane formation across a range of material platforms. Devices are successfully printed onto host substrates, showing a high degree of mechanical flexibility and conformation over existing surface features. Multilayer printing of membranes shows a route towards micro-assembly of hybrid material 3D photonics.","PeriodicalId":145258,"journal":{"name":"2018 IEEE British and Irish Conference on Optics and Photonics (BICOP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122576249","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}
引用次数: 1
Application of GI polymer optical waveguide to coupling devices between multimode fiber and VCSEL GI聚合物光波导在多模光纤与VCSEL耦合器件中的应用
2018 IEEE British and Irish Conference on Optics and Photonics (BICOP) Pub Date : 2018-12-01 DOI: 10.1109/BICOP.2018.8658352
Ryosuke Hatai, T. Ishigure
{"title":"Application of GI polymer optical waveguide to coupling devices between multimode fiber and VCSEL","authors":"Ryosuke Hatai, T. Ishigure","doi":"10.1109/BICOP.2018.8658352","DOIUrl":"https://doi.org/10.1109/BICOP.2018.8658352","url":null,"abstract":"In this paper, required specifications to a polymer waveguide based compact restricted mode launch (RML) device for multimode fibers are investigated. We confirm that a smaller spot size on the MMF launch end is necessary to enhance the effective modal bandwidth (EMBc), whereas a lower numerical aperture does not always allow the high EMBc. In addition, we determine the design guideline of polymer waveguide based RML exciters using the beam propagation method simulation.","PeriodicalId":145258,"journal":{"name":"2018 IEEE British and Irish Conference on Optics and Photonics (BICOP)","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133764379","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}
引用次数: 1
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