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Effect of Phase Mismatch between the Bragg Gratings on the Stability of Gap Solitons in Semilinear Dual-core System 半线性双核系统中Bragg光栅相位失配对间隙孤子稳定性的影响
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0010229800360039
Shuvashis Saha, J. Atai
{"title":"Effect of Phase Mismatch between the Bragg Gratings on the Stability of Gap Solitons in Semilinear Dual-core System","authors":"Shuvashis Saha, J. Atai","doi":"10.5220/0010229800360039","DOIUrl":"https://doi.org/10.5220/0010229800360039","url":null,"abstract":"The existence and stability of quiescent gap solitons are st udied in a semilinear dual-core optical system, in which Bragg gratings (BGs) are written on the both cores wi th a phase shift and one core has the Kerr nonlinearity, while other one is linear. When the relative g roup velocityc in the linear core is zero, three separate band gaps are observed through the spectrum analys is, including one central band gap surrounded by upper and lower band gaps. Three band gaps are entirely filled with the stationary soliton solutions. However, in case ofc is non-zero, only central band gap contains the stationary s olution. Numerical techniques are used to find the stability of the quiescent gap solitons in terms of their frequency detuning.","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":"130910885","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
Mode Analysis of Hybrid Plasmonic Waveguide Using Multilayer Spectral Green's Function and Rational Function Fitting Method 基于多层谱格林函数和有理函数拟合的混合等离子体波导模态分析
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0011647300003408
A. Torabi
{"title":"Mode Analysis of Hybrid Plasmonic Waveguide Using Multilayer Spectral Green's Function and Rational Function Fitting Method","authors":"A. Torabi","doi":"10.5220/0011647300003408","DOIUrl":"https://doi.org/10.5220/0011647300003408","url":null,"abstract":"","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"27 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":"134206220","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
Light Fidelity (Li-Fi): Security and Market Sector 光保真(Li-Fi):安全和市场领域
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0007369901540162
Hikmatyarsyah, S. Rahardjo, Juliati Junde
{"title":"Light Fidelity (Li-Fi): Security and Market Sector","authors":"Hikmatyarsyah, S. Rahardjo, Juliati Junde","doi":"10.5220/0007369901540162","DOIUrl":"https://doi.org/10.5220/0007369901540162","url":null,"abstract":"The increasing data traffic network is directly proportional to devices connected to the network. Visible Light Communication (VLC) systems such as Light Fidelity (Li-Fi) are not only promising solutions to overcome the limitations of Radio Frequency (RF), but will become a trend of wireless communication technology in the near future, especially indoor building solutions. VLC is inevitable from security challenges which is one of the main problems in communication systems even though the nature of the light itself cannot penetrate walls or enclosed spaces. This paper discusses the security protocol in the VLC system and describes its development especially for the indoor mechanism system. The paper also predicts the business market which will have the highest sector potential to implement the VLC system in the next few years. In conclusion, indoor buildings such as offices, malls and smart homes are the sectors that are most ready to adapt to the VLC system in the near future.","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"128 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":"132588519","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
Photopolymerizable Nanoparticle-polymer Composite Materials for Light and Neutron Beam Manipulations 用于光和中子束操纵的可光聚合纳米粒子-聚合物复合材料
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0006728803130322
Y. Tomita, K. Nagaya, T. Aoi, Yuko Iso, Akihisa Kageyama, N. Nishimura, Keisuke Odoi, K. Umemoto, J. Klepp, C. Pruner, M. Fally
{"title":"Photopolymerizable Nanoparticle-polymer Composite Materials for Light and Neutron Beam Manipulations","authors":"Y. Tomita, K. Nagaya, T. Aoi, Yuko Iso, Akihisa Kageyama, N. Nishimura, Keisuke Odoi, K. Umemoto, J. Klepp, C. Pruner, M. Fally","doi":"10.5220/0006728803130322","DOIUrl":"https://doi.org/10.5220/0006728803130322","url":null,"abstract":"We report on a recent progress in a new class of photopolymerizable nanostructured materials, the so-called photopolymerizable nanoparticle-polymer composites (NPCs). They consist of photoreactive monomer (photopolymer) dispersed with inorganic or organic nanoparticles at high concentrations. The initially uniform distribution of nanoparticles in a neat monomer host is spatially assembled under holographic exposure, providing the single step formation of large scale and multi-dimensional photonic lattice structures in NPC films. This property can be used for versatile applications in photonics and neutron optics such as holographic data storage, holographic optical elements, nonlinear photonic crystals and slow-neutron beam control. Here we describe applications of NPCs dispersed with new organic and inorganic nanoparticles to holographic data storage and holographic diffractive elements for light and neutron beams.","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"227 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":"114833026","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
Narrow Bandwidth Tunable Watt Level Tm: YAP Laser using Two Etalons 窄带宽可调谐瓦级Tm:双标准子YAP激光器
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0006721403030307
Uzziel Sheintop, E. Perez, S. Noach
{"title":"Narrow Bandwidth Tunable Watt Level Tm: YAP Laser using Two Etalons","authors":"Uzziel Sheintop, E. Perez, S. Noach","doi":"10.5220/0006721403030307","DOIUrl":"https://doi.org/10.5220/0006721403030307","url":null,"abstract":"Narrow band, tunable, end pump Tm:YAP laser is demonstrated in this paper. The 35 nm wavelength tunability, ranges continuously from 1917 to 1951 nm, having a spectral linewidth of 0.15 nm FWHM. The tuning and spectral band narrowing was obtained using a pair of YAG Fabry-Perot Etalons with thicknesses of 25 and 500 μm. Watt level output power were measured along the laser tunable range. Maximum output power of 3.84 W was achieved at 1934 nm. Slope efficiency of 43.2% was calculated for an absorbed pump power of 12.1 W. The combination of the narrow bandwidth with tunability at those levels of output power, makes this laser a promising tool for bio-medical, sensing and material processing applications.","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"178 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":"116330148","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
Highly Reliable, Cost-effective and Temperature-stable Top-illuminated Avalanche Photodiode (APD) for 100G Inter-Datacenter ER4-Lite Applications 高可靠性，高性价比和温度稳定的顶照雪崩光电二极管(APD)，用于100G数据中心间ER4-Lite应用
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0006510601190124
J. Huang, Hsiang-Szu Chang, Y. Jan, H. Chen, C. Ni, Emin Chou, S. K. Lee, Jin-Wei Shi
{"title":"Highly Reliable, Cost-effective and Temperature-stable Top-illuminated Avalanche Photodiode (APD) for 100G Inter-Datacenter ER4-Lite Applications","authors":"J. Huang, Hsiang-Szu Chang, Y. Jan, H. Chen, C. Ni, Emin Chou, S. K. Lee, Jin-Wei Shi","doi":"10.5220/0006510601190124","DOIUrl":"https://doi.org/10.5220/0006510601190124","url":null,"abstract":"One of the key enablers for 100G ER4-Lite optical modules is 25G APD photodetector that can be employed in 30-40km optical links for inter-datacenter applications. In this paper, we demonstrate that a cost-effective top-illuminated InGaAs/InAlAs APD photodetector can be manufactured to meet stringent IEEE standard of 100G ER4-Lite. The 25G APD shows high bandwidth, high sensitivity with superb temperature stability of breakdown voltage. The APD photodetector also possesses excellent durability against harsh optical and electrical overload in both burst and continuous modes. Robust reliability performance based on aging conditions of 85-175C has also been achieved with an activation energy of 1.18eV.","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"12 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":"131871578","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
Deployment of 1610 nm InAs/InP Quantum-dash Laser Diode in 28-50 GHz Hybrid RoF-RoFSO-Wireless Transmission System 1610 nm InAs/InP量子脉冲激光二极管在28-50 GHz混合rof - rofso无线传输系统中的部署
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0010987400003121
M. Khan
{"title":"Deployment of 1610 nm InAs/InP Quantum-dash Laser Diode in 28-50 GHz Hybrid RoF-RoFSO-Wireless Transmission System","authors":"M. Khan","doi":"10.5220/0010987400003121","DOIUrl":"https://doi.org/10.5220/0010987400003121","url":null,"abstract":"In this paper, we report on our recent demonstrations on deploying mid L-band ~1610 nm quantum-dash (Qdash) laser diode (LD) in millimeter-wave (MMW) applications. 28 and 30 GHz MMW beat-tones are generated using a self-injection-locked (SIL) Qdash LD-based comb source (QDCS) with phase noise of ~120 dBc/Hz at 1MHz offset frequency. Moreover, we demonstrated transmission of these MMWs over various channels comprising of single-mod-fiber (SMF), generally known as radio-over-fiber (RoF), freespace-optics (FSO), known as radio-over-FSO (RoFSO), and wireless (WL) links, which are attractive solutions for future flexible next-generation access networks (NGANs). In particular, we demonstrated successful transmission of 28 and 30 GHz MMW modulated with analog 2 Gb/s quadrature-phase-shiftkeying (QPSK) data over hybrid 20 km SMF – 5 m FSO and 06 m WL channel. Moreover, we also discussed our very recent preliminary results of 50 GHz high-frequency generation and transmission utilizing QDCS. In this case, we showed error-free transmission of 2 Gb/s QPSK data over 50 GHz carrier and 11.6 km SMF – 6 m FSO and 0-1 m WL channel. This rule-changing broad multi-wavelength lasing spectrum from Qdash LD and emission covering Sto U-band has made it a prime contender for NGANs.","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"8 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":"128670459","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
Image Reconstruction by the Method of Convex Projections 基于凸投影法的图像重建
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0008912000260032
Tomohiro Aoyagi, Kouichi Ohtsubo, Nobuo Aoyagi
{"title":"Image Reconstruction by the Method of Convex Projections","authors":"Tomohiro Aoyagi, Kouichi Ohtsubo, Nobuo Aoyagi","doi":"10.5220/0008912000260032","DOIUrl":"https://doi.org/10.5220/0008912000260032","url":null,"abstract":": In medical imaging modality, such as X-ray computerized tomography (CT) and positron emission tomography (PET), image reconstruction from projection is to produce an image of a two dimensional object from its line integrals along a finite number of lines. Given some subsets of a priori knowledge about the problem in Hilbert space, a formalized problem is to find the object from observed vector. If the subsets are closed and convex sets, given the convex projections onto the sets, the problem can be solved by using the method of projections onto convex sets (POCS). In this paper, we apply the method of projection onto convex sets to image reconstruction problems and evaluate the image quality in computer simulations. Also, we evaluate the influence of the noise in reconstructed image.","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":"134234402","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
A New View on Acousto-optic Laser Beam Combining 声光激光束组合的新观点
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0008928200860091
K. Yushkov, V. Molchanov
{"title":"A New View on Acousto-optic Laser Beam Combining","authors":"K. Yushkov, V. Molchanov","doi":"10.5220/0008928200860091","DOIUrl":"https://doi.org/10.5220/0008928200860091","url":null,"abstract":"Coherent combining is a well-known principle of up-scaling the peak power in different types of pulsed lasers. A new type of acousto-optic beam combiner for pulsed lasers i s proposed and discussed. We demonstrate that phase delay between two laser beams can be controlled and the beams can be combined using one acoustooptic device. Two cases of degenerate and non-degenerate Br gg diffraction are analyzed and compared. The experiment with anisotropic Bragg diffraction in paratell urite demonstrated efficiency of combining exceeding 95 %.","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"29 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":"133416468","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
Development of a DNA Biodosimeter for UV Radiation 紫外辐射DNA生物剂量计的研制
International Conference on Photonics, Optics and Laser Technology Pub Date : 1900-01-01 DOI: 10.5220/0006732003280333
Telma S. Marques, F. Pires, G. Magalhães-Mota, P. Ribeiro, M. Raposo, N. Mason
{"title":"Development of a DNA Biodosimeter for UV Radiation","authors":"Telma S. Marques, F. Pires, G. Magalhães-Mota, P. Ribeiro, M. Raposo, N. Mason","doi":"10.5220/0006732003280333","DOIUrl":"https://doi.org/10.5220/0006732003280333","url":null,"abstract":"Ultraviolet (UV) radiation has a strong influence in the damage of deoxyribonucleic acid (DNA). In this work, the possibility of a DNA UV radiation dosimeter is evaluated. For that, calf thymus DNA samples, thin films and aqueous solutions, were irradiated with 254 nm wavelength light during different periods of time, being the damage caused by the irradiation analysed by both UV-visible and infrared spectroscopies. As the DNA is a polyelectrolyte, the pH of the DNA samples was also considered as a variable. Results demonstrated that damage in DNA takes place in both thin films and solutions when irradiated at 254 nm, as revealed by a consistent decay in measured absorbance values. However, DNA solutions were seen to give more reliable as the induced damage is easily measured. For this case, the absorbance at 260 nm was seen to exponentially decrease with the irradiation time as a result of radiation damage with the kinetics damage strongly dependent of pH. Consequently, the lifetime of such dosimeter device can be chosen by changing the pH of aqueous solutions.","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"85 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":"121902234","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
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