International Conference on Photonics, Optics and Laser Technology最新文献

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Short-reach 200 Gb/s SDM Network Employing Direct-detection and Optical SSBI Mitigation 采用直接检测和光SSBI缓解的短达200gb /s SDM网络
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0010343101220130
M. TiagoD.Freitas, T. Alves, A. Cartaxo
{"title":"Short-reach 200 Gb/s SDM Network Employing Direct-detection and Optical SSBI Mitigation","authors":"M. TiagoD.Freitas, T. Alves, A. Cartaxo","doi":"10.5220/0010343101220130","DOIUrl":"https://doi.org/10.5220/0010343101220130","url":null,"abstract":"We propose a new transmission scheme for direct-detection (DD) short-reach networks based on transmitting the carriers and the data signals in separated cores of a multicore-fibre (MCF). With this scheme, a low complexity signal-signal beat interference (SSBI) mitigation approach is proposed at the receiver side, which may be required to compensate electronically the chromatic dispersion of the singlemode fibre. The performance of a 200 Gb/s binary NRZ signal in a MCF short-reach network employing the proposed transmission scheme is assessed by numerical simulation. The combined effect of the skew and the laser phase noise on the system performance is evaluated. It is shown that the SSBI mitigation technique enables distances up to 180 m when dispersion is not compensated, showing the potential to be implemented in intra data-centre (DC) networks, when the signal mean optical power is much higher than the carrier mean optical power, and when the SSBI estimation is not corrupted by electrical noise. The results also show that in systems with full dispersion compensation, a significant performance improvement is achieved by the proposed SSBI mitigation approach, enabling higher connection lengths.","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125323792","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
Silica Coated Plasmonic Nanobone-based Tags for Safe Bioimaging 用于安全生物成像的二氧化硅涂层等离子体纳米标签
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0010997700003121
A. N. Smirnov, Vasilisa O. Svinko, Aleksei S. Strelnikov, A. Shevchuk, A. Volkova, E. Solovyeva
{"title":"Silica Coated Plasmonic Nanobone-based Tags for Safe Bioimaging","authors":"A. N. Smirnov, Vasilisa O. Svinko, Aleksei S. Strelnikov, A. Shevchuk, A. Volkova, E. Solovyeva","doi":"10.5220/0010997700003121","DOIUrl":"https://doi.org/10.5220/0010997700003121","url":null,"abstract":"Fluorescence tomography is a hopeful medical imaging technique. However, this method has restrictions consisting in absorbance and scattering of optical signal by tissue. The present research is devoted to overcome these challenges utilising plasmonic nanoparticles. A new type of gold nanoparticles was synthesized, having a bone-like shape which provides the maximum of unimodal absorption band just in the middle of the biological tissues transparency range (600-800 nm). The nanobones were further modified with cyanine 5.5 and 7 fluorophores by electrostatic immobilization and coated by silica shell via two different techniques to instill biocompatibility. Resulting nanoparticles were characterised by dynamic light scattering, transmission electron microscopy, fluorescent and Raman spectroscopy. It is shown that a thickness of silica shell may be tuned precisely and that the nanoparticles may also be coated directly using mercaptopropyltrimethxysilane. The registered surface-enhanced Raman scattering and fluorescent signals depend on a position of cyanine dye in nanoparticle shell. Intensive fluorescent signal from the nanoparticles covered with silicon dioxide using mercaptopropyltrimethxysilane proved an incorporation of cyanines into shell during its growth.","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126134655","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
Elements of Hybrid Opto-superconducting Convolutional Neural Networks 混合光超导卷积神经网络的基本原理
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0009100101350139
A. Schegolev, N. Klenov, M. Tereshonok, S. S. Adjemov
{"title":"Elements of Hybrid Opto-superconducting Convolutional Neural Networks","authors":"A. Schegolev, N. Klenov, M. Tereshonok, S. S. Adjemov","doi":"10.5220/0009100101350139","DOIUrl":"https://doi.org/10.5220/0009100101350139","url":null,"abstract":"In this paper authors proposed the concepts and principals of operating of basic nonlinear elements for hybrid opto–superconducting convolutional neural network. Optical elements in computing systems are usually designed to produce only linear mathematical operations. This is insufficient for complete neural network realization on chip, where non-linear operations like activation function calculations in neuron or transfer function of rectifier linear unit are needed. We have shown the opportunity of realization of elemental base for the hybrid neural network consists of optical and superconducting parts.","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128129474","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
Strong Modulation of Absorption and Third-Harmonic Generation in Resonant Metasurfaces based on VO2 基于VO2的谐振超表面强调制吸收和三次谐波的产生
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0010340000400045
M. Marni, D. Ceglia
{"title":"Strong Modulation of Absorption and Third-Harmonic Generation in Resonant Metasurfaces based on VO2","authors":"M. Marni, D. Ceglia","doi":"10.5220/0010340000400045","DOIUrl":"https://doi.org/10.5220/0010340000400045","url":null,"abstract":"Control of linear and nonlinear optical signals is of key importance in a variety of applications, including signal processing, optical computing and energy harvesting, to name just a few. Optical modulation and switching, and more generally tunability in photonic devices, are usually achieved in the visible and nearinfrared range by carrier injection, chemical or mechanical activation, or by deploying materials with large electro-optic or optical nonlinear coefficients. However, these mechanisms are inherently weak and therefore require intense control signals in order to produce significant modulation effects. Here we adopt a nanophotonic solution in which a resonant film of a volatile phase-change material, vanadium dioxide, is inserted between an array of antennas and a metallic backplane. Our design takes advantage of (i) the large refractive-index change of VO2 at its insulator-to-metal transition and (ii) the field enhancements available when the Fabry-Pérot resonance of the film and the plasmonic resonance of the antennas are exited. In response to the VO2 phase transition, not only does our metasurface provide a strong and broadband modulation of linear absorption and reflection but it also shows a drastic variation of third-harmonic generation, with a conversion-efficiency contrast higher than three orders of magnitude.","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123703023","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
Identifying Isolated Glioblastoma Tissues in Human Patients through Their Optical and Spectral Properties 通过光学和光谱特性鉴定人类患者分离的胶质母细胞瘤组织
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0006531501360140
H. Mehidine, F. Poulon, A. Ibrahim, M. Juchaux, P. Varlet, B. Devaux, J. Pallud, D. A. Haidar
{"title":"Identifying Isolated Glioblastoma Tissues in Human Patients through Their Optical and Spectral Properties","authors":"H. Mehidine, F. Poulon, A. Ibrahim, M. Juchaux, P. Varlet, B. Devaux, J. Pallud, D. A. Haidar","doi":"10.5220/0006531501360140","DOIUrl":"https://doi.org/10.5220/0006531501360140","url":null,"abstract":"Survival rates and health-related quality of life of adult patients suffering from glioblastoma depend significantly on the extent (no residual tumor tissue) and precision (no collateral damage) of the surgical resection. Assistance in defining the borders of the infiltrating component of the glioblastoma would be valuable to improve outcomes. A tissue can be defined by its optical properties : absorption, scattering, intensity of fluorescence, that will give a unique signature. In this work we look at the absorption and scattering coefficients of glioblastoma and control tissues from adult patients using an integrating sphere, spectral measurements were also took on the samples using a fiber endoscope. The preliminary results show the potential of using endogenous fluorescence for intraoperative identification of residual glioblastoma tissue in the wall of the surgical cavity of resection.","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123256150","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
Boundary Burr Phenomenon for Long-path Time Domain OCT 长路径时域OCT的边界毛刺现象
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0010327201150121
T. Shiina
{"title":"Boundary Burr Phenomenon for Long-path Time Domain OCT","authors":"T. Shiina","doi":"10.5220/0010327201150121","DOIUrl":"https://doi.org/10.5220/0010327201150121","url":null,"abstract":"Long-path OCT measurement system has been developed for industrial use. We aim to measure time change of the concentration and refractive index of the target solution with a certain volume. As the fundamental experiment, we put the glass plate in the solution to obtain the glass position and its thickness, and got the interesting result. That is, the vibration mitigating waveform like a diffraction pattern by a knife-edge was observed. The OCT measurement consists of inline signals from the back-reflected (scattered) light, the diffraction pattern by a knife-edge is appeared on a screen. Although this phenomenon causes the boundary burr on the target detection, while the diffraction pattern has the information of the refractive index difference of the target. In this study, the characteristics of the boundary burr phenomenon is examined. Its origin is considered experimentally and analytically.","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124692221","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
Vertical Optical Waveguide Comprising Square Base Cuboid Cores with Size Modulation for Multilayer Chip-to-Chip Interconnection 用于多层片对片互连的具有尺寸调制的方基长方体核心垂直光波导
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0009173401740179
S. Ran, T. Kakitsuka, K. Takahata
{"title":"Vertical Optical Waveguide Comprising Square Base Cuboid Cores with Size Modulation for Multilayer Chip-to-Chip Interconnection","authors":"S. Ran, T. Kakitsuka, K. Takahata","doi":"10.5220/0009173401740179","DOIUrl":"https://doi.org/10.5220/0009173401740179","url":null,"abstract":": For chip-to-chip interconnection, a Pbit/s-class transmission capacity is expected to be developed in near future. To achieve such a huge capacity, a multilayer optical waveguide structure for connection between chips is indispensable. In this paper, a square base cuboid-core structure with size modulation for vertical light beam propagation in a polymer multilayer waveguide is proposed for improving optical coupling between the optical devices and waveguide. A 10-layer polymer waveguide with nonuniform cuboid cores are designed for single-mode transmission at 1.31 μ m. Using a simulation based on the beam propagation method, it is confirmed that the proposed design can provide a coupling efficiency of − 4.4 dB, which is 3.8 dB higher than that of a previously reported uniform cube-core design, for the 10-layer structure and a crosstalk of − 20.6 dB. The simulated results show that the proposed nonuniform cuboid-core structure has the potential to realize a 10-layer optical waveguide structure for future chip-to-chip optical interconnection with a huge transmission capacity.","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129951378","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
Introducing Advanced Freeform Optic Design to Li-Fi Technology 将先进的自由曲面光学设计引入Li-Fi技术
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0007471802480254
René Kirrbach, Benjamin Jakob, Alexander Noack
{"title":"Introducing Advanced Freeform Optic Design to Li-Fi Technology","authors":"René Kirrbach, Benjamin Jakob, Alexander Noack","doi":"10.5220/0007471802480254","DOIUrl":"https://doi.org/10.5220/0007471802480254","url":null,"abstract":"The paper considers the potential of freeform optics for Li-Fi technology and presents design approaches for transmitter and receiver optics using ray mapping methodology and freeform Fresnel lens, respectively. Simulation results are then presented for models validation.","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125706760","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: 5
All Signs Lead to LiFi 一切迹象都指向光明
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0011007000003121
A. Banham, S. Scace, Ron Schaeffer, M. Afgani
{"title":"All Signs Lead to LiFi","authors":"A. Banham, S. Scace, Ron Schaeffer, M. Afgani","doi":"10.5220/0011007000003121","DOIUrl":"https://doi.org/10.5220/0011007000003121","url":null,"abstract":"All signs lead to LiFi. Global communications requirements for greater bandwidth, reliable communications, ultra-high speeds and unprecedented security can only be delivered by introducing LiFi to the communications mix. Using light instead of radio waves to send and receive data, LiFi’s security, safety and bandwidth advantages make it the right solution at the right time.","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132436681","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
Exploring the Tabu Search Algorithm as a Graph Coloring Technique for Wavelength Assignment in Optical Networks 禁忌搜索算法在光网络波长分配中的图着色技术探讨
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0010910000003121
Inês Gomes, L. Cancela, J. Rebola
{"title":"Exploring the Tabu Search Algorithm as a Graph Coloring Technique for Wavelength Assignment in Optical Networks","authors":"Inês Gomes, L. Cancela, J. Rebola","doi":"10.5220/0010910000003121","DOIUrl":"https://doi.org/10.5220/0010910000003121","url":null,"abstract":"The aim of this work is to study the Tabu Search algorithm as a graph coloring technique for wavelength assignment in optical networks, a crucial function in optical network planning. The performance of the Tabu Search is assessed in terms of the number of wavelengths and computation time and is compared with the one of the most common Greedy algorithm. It is concluded that for real networks with a large number of nodes and a higher variance node degree of the path graph relatively to its average node degree value, the Greedy algorithm is preferable to the Tabu Search algorithm since it returns the same number of colors of Tabu Search, but in a shorter computation time.","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"547 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132446070","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
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