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Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488)最新文献

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Incoherent spatial solitons in nematic liquid crystals 向列液晶中的非相干空间孤子
Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488) Pub Date : 2005-05-22 DOI: 10.1109/ICTON.2001.934740
M. Peccianti, A. DeLuca, G. Assanto
{"title":"Incoherent spatial solitons in nematic liquid crystals","authors":"M. Peccianti, A. DeLuca, G. Assanto","doi":"10.1109/ICTON.2001.934740","DOIUrl":"https://doi.org/10.1109/ICTON.2001.934740","url":null,"abstract":"Spatial solitons are generated in nematic liquid crystals taking advantage of their reorientational response with increase in refractive index. Such response is saturable and can therefore prevent filamentation even in the fully three-dimensional case. To sustain a soliton, a linearly polarized optical field exerts a torque on the (pre-aligned) induced molecular dipoles of a positive uniaxial liquid crystal, orienting them towards the beam polarization vector. This is obtained at low powers by introducing a pre-tilt to the molecules in a planarly-anchored nematic, as to form an angle close to /spl pi//4 between them and the optical field. Since the liquid crystal has a noninstantaneous response, it averages out rapid intensity variations and allows to employ light with reduced spatio-temporal coherence. When properly polarized, the spatially incoherent beam forms an \"incoherent\" spatial soliton, which can also guide a weaker copolarized and collinear signal of different wavelength. Coherent/incoherent solitons and their use in signal rerouting and multiplexing are discussed.","PeriodicalId":301018,"journal":{"name":"Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122696287","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
NLO effect as a sensitive tool for determination of phase transition in C/sub 60/-2-thioxo-1, 3-dithiole and in C/sub 60/-TTF derivatives NLO效应作为测定C/sub 60/-2-硫氧- 1,3 -二噻唑和C/sub 60/-TTF衍生物中相变的灵敏工具
Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488) Pub Date : 2001-06-21 DOI: 10.1109/ICTON.2001.934767
B. Sahraoui, I. Fuks, J. Nunzi, J. Berdowski, I. Kityk, P. Hudhomme, A. Gorgues
{"title":"NLO effect as a sensitive tool for determination of phase transition in C/sub 60/-2-thioxo-1, 3-dithiole and in C/sub 60/-TTF derivatives","authors":"B. Sahraoui, I. Fuks, J. Nunzi, J. Berdowski, I. Kityk, P. Hudhomme, A. Gorgues","doi":"10.1109/ICTON.2001.934767","DOIUrl":"https://doi.org/10.1109/ICTON.2001.934767","url":null,"abstract":"Chemical modifications of C/sub 60/ are interesting owing to potential improvement of their stability and processability, as well as their optical nonlinearities. This study concerns fullerenes functionalized with 2-thioxo-1, 3-dithiole (CA) and tetrathiafulvalene (TTF) cycloadducts in the solid state. Photoinduced nonlinear effects in these compounds are investigated using nonlinear optical techniques such as photoinduced optical second harmonic generation (PISHG), two-photon absorption (TPA) and linear electrooptics effects (Pockels effects) in order to determine phase transitions in the mentioned compounds.","PeriodicalId":301018,"journal":{"name":"Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129184573","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
New method of SBS counteracting in long distance analog CATV link 远距离模拟有线电视链路中SBS抵消的新方法
Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488) Pub Date : 2001-06-18 DOI: 10.1109/ICTON.2001.934770
M. Jaworski, M. Marciniak
{"title":"New method of SBS counteracting in long distance analog CATV link","authors":"M. Jaworski, M. Marciniak","doi":"10.1109/ICTON.2001.934770","DOIUrl":"https://doi.org/10.1109/ICTON.2001.934770","url":null,"abstract":"Analysis of stimulated Brillouin scattering (SBS) in externally modulated lightwave long distance AM-CATV systems is presented. The stimulated Brillouin scattering threshold power (P/sub SBS//spl ap/7 dBm) is the main limiting factor of transmission distance. Two methods of increasing the SBS threshold are compared: well known dithering method and new one, called initial pulse modulation method.","PeriodicalId":301018,"journal":{"name":"Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116775941","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
Parabolic equation method for electromagnetic guiding structures
Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488) Pub Date : 2001-06-18 DOI: 10.1109/ICTON.2001.934714
A. Popov, A.N. Kurokhtin
{"title":"Parabolic equation method for electromagnetic guiding structures","authors":"A. Popov, A.N. Kurokhtin","doi":"10.1109/ICTON.2001.934714","DOIUrl":"https://doi.org/10.1109/ICTON.2001.934714","url":null,"abstract":"In order to demonstrate the versatility and computational efficiency of the numerical parabolic wave equation (PE) approach, we present a number of examples from different branches of applied electromagnetics: UHF radiowave propagation over irregular terrain, full-wave 3D simulation of VHF radio communication in a curved tunnel, optical propagation in a rough dielectric slab, and wave fields in tapered waveguides. An important application of the PE techniques has been found in numerical modeling of the imaging performance of X-ray Fresnel microlenses (zone plates).","PeriodicalId":301018,"journal":{"name":"Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125139126","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
Light controlled delay of MW signals in LiNbO/sub 3/:Fe LiNbO/ sub3 /:Fe中毫瓦信号的光控延迟
Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488) Pub Date : 2001-06-18 DOI: 10.1109/ICTON.2001.934766
N. M. Ushakov
{"title":"Light controlled delay of MW signals in LiNbO/sub 3/:Fe","authors":"N. M. Ushakov","doi":"10.1109/ICTON.2001.934766","DOIUrl":"https://doi.org/10.1109/ICTON.2001.934766","url":null,"abstract":"New optically controlled hypersonic delay lines are proposed for MW signals processing. It is shown that their principle of operation is based on the reflection of hypersonic waves by photoinduced Bragg gratings (PBG) in photorefractive media such as photonic crystals. It has been suggested that one can record with PBG in one domain with broadband reflection of hypersonic waves.","PeriodicalId":301018,"journal":{"name":"Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122194016","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
Numerical analysis of electromagnetic wave scattering from multilayered resistive strip gratings and its application to wave absorbers 多层电阻条形光栅电磁波散射的数值分析及其在吸波器上的应用
Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488) Pub Date : 2001-06-18 DOI: 10.1109/ICTON.2001.934729
T. Zinenko, A. Matsushima, Y. Okuno
{"title":"Numerical analysis of electromagnetic wave scattering from multilayered resistive strip gratings and its application to wave absorbers","authors":"T. Zinenko, A. Matsushima, Y. Okuno","doi":"10.1109/ICTON.2001.934729","DOIUrl":"https://doi.org/10.1109/ICTON.2001.934729","url":null,"abstract":"The problems of a plane wave scattering from a multilayered resistive strip grating embedded in a dielectric slab without and with an impedance plane and a multilayered perpendicularly crossed resistive strip grating in free space have been analyzed in order to investigate the absorption and scattering characteristics of resistive gratings. Each of considered problems is converted into a set of integral equations, which were solved by the moment method with appropriate basis functions to ensure a fast convergence. It has been verified that the obtained solutions are very efficient over a broad range of parameters of the incident wave and considered gratings.","PeriodicalId":301018,"journal":{"name":"Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488)","volume":"253 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116814111","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
A useful approach in spectral properties modelling of erbium-doped fibre amplifiers 掺铒光纤放大器光谱特性建模的一种有效方法
Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488) Pub Date : 2001-06-18 DOI: 10.1109/ICTON.2001.934752
M. Tiesler, E. Pawlik, K. Abramski
{"title":"A useful approach in spectral properties modelling of erbium-doped fibre amplifiers","authors":"M. Tiesler, E. Pawlik, K. Abramski","doi":"10.1109/ICTON.2001.934752","DOIUrl":"https://doi.org/10.1109/ICTON.2001.934752","url":null,"abstract":"A useful approach of modelling spectral properties of erbium-doped fibre amplifiers is presented. Results obtained from a numerical modelling are demonstrated. The theory of an effective overlap integral is considered.","PeriodicalId":301018,"journal":{"name":"Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129003665","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
Planar optics for processing and network applications 平面光学处理和网络应用
Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488) Pub Date : 2001-06-18 DOI: 10.1109/ICTON.2001.934785
S. Fancey, M. Gruber, S. Sinzinger, J. Jahns, P. Lukowicz
{"title":"Planar optics for processing and network applications","authors":"S. Fancey, M. Gruber, S. Sinzinger, J. Jahns, P. Lukowicz","doi":"10.1109/ICTON.2001.934785","DOIUrl":"https://doi.org/10.1109/ICTON.2001.934785","url":null,"abstract":"The increase in performance of electronic computing systems may not be sustained in the face of interconnection bandwidth limitations. The potential of optics to overcome these limitations is discussed, with particular emphasis on planar optical packaging of free-space optics. Planar optics offers free-space optical functionality implemented with industry-standard manufacturing techniques. Our current research into applications of planar optics in digital communication and processing networks is presented.","PeriodicalId":301018,"journal":{"name":"Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132156376","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
Specialty fibers for optical amplifiers in communications 通信用光放大器专用光纤
Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488) Pub Date : 2001-06-18 DOI: 10.1109/ICTON.2001.934710
U. Unrau
{"title":"Specialty fibers for optical amplifiers in communications","authors":"U. Unrau","doi":"10.1109/ICTON.2001.934710","DOIUrl":"https://doi.org/10.1109/ICTON.2001.934710","url":null,"abstract":"Various solutions are explored to extend the bandwidth with flat gain of optical amplifiers and to open up new bands for efficient amplification. Many solutions require non-silica fibers, e.g. fluoride fibers or heavy metal oxide fibers of different kinds like tellurite or the newly developed antimony silicate fibers. The main properties of such fibers and their impact on system performance in the S, C and L-bands are described.","PeriodicalId":301018,"journal":{"name":"Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127859714","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
Wide-band gain-flattened fibre amplifiers 宽带增益平坦光纤放大器
Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488) Pub Date : 2001-06-18 DOI: 10.1109/ICTON.2001.934750
M. Karásek
{"title":"Wide-band gain-flattened fibre amplifiers","authors":"M. Karásek","doi":"10.1109/ICTON.2001.934750","DOIUrl":"https://doi.org/10.1109/ICTON.2001.934750","url":null,"abstract":"Wide-band and gain-flattened fibre amplifiers are indispensable for multiwavelength and long-distance wavelength-division-multiplexed (WDM) optical network systems around 1500 nm. We review the configurations and amplification characteristics of fibre amplifiers featuring flat gain and high gain-bandwidth product. Different approaches resulting in wide-band and gain-flattened amplification in the third communication window are reviewed.","PeriodicalId":301018,"journal":{"name":"Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126549431","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
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