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Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551)最新文献

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Asynchronous optical performance monitor techniques for DWDM optical networks DWDM光网络的异步光性能监测技术
Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551) Pub Date : 2002-08-07 DOI: 10.1109/ICTON.2002.1009490
A. Teixeira, P. André, M. Lima, J. D. da Rocha, J. Pinto
{"title":"Asynchronous optical performance monitor techniques for DWDM optical networks","authors":"A. Teixeira, P. André, M. Lima, J. D. da Rocha, J. Pinto","doi":"10.1109/ICTON.2002.1009490","DOIUrl":"https://doi.org/10.1109/ICTON.2002.1009490","url":null,"abstract":"The current techniques of optical system performance monitoring are described and characterized. From the available techniques, we focus our attention on the asynchronous Q method, and it is described and evaluated for several working conditions. This technique allows optical performance monitoring without synchronization, thus allowing the performance monitor to work at a much lower ratio and without performing clock recovery/synchronization, which is quite a hard and expensive task to perform, especially if considering different bit rates and pulse formats. The results of this technique are discussed, taking into account linear and nonlinear effects. Its resilience to the pulse format is also observed by considering a square pulse, where the \"on\" time is much more evident than the transition time, and a raised cosine pulse where the conditions are reversed. Some experimental results are shown and validated with the synchronous BER testing standard technique.","PeriodicalId":126085,"journal":{"name":"Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114697329","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: 6
Dynamics of oxide confinement vertical cavity semiconductor lasers 氧化物约束垂直腔半导体激光器动力学
Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551) Pub Date : 2002-08-07 DOI: 10.1109/ICTON.2002.1009529
V. Lysak, I. Sukhoivanov, P. Ivanov, M. Marciniak
{"title":"Dynamics of oxide confinement vertical cavity semiconductor lasers","authors":"V. Lysak, I. Sukhoivanov, P. Ivanov, M. Marciniak","doi":"10.1109/ICTON.2002.1009529","DOIUrl":"https://doi.org/10.1109/ICTON.2002.1009529","url":null,"abstract":"In this work we investigate pulse behaviour of oxide confinement vertical cavity surface emitting laser for main and side modes. It's shown that the pulse delay time increases with increasing of structure radius. It allows to uniformity of pulse form for the main and side modes.","PeriodicalId":126085,"journal":{"name":"Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114726064","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
Beam propagation method simulation of a Ti:LiNbO/sub 3/ Mach-Zehnder modulator Ti:LiNbO/sub - 3/ Mach-Zehnder调制器的光束传播方法仿真
Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551) Pub Date : 2002-08-07 DOI: 10.1109/ICTON.2002.1009545
A. Tehranchi, N. Granpayeh
{"title":"Beam propagation method simulation of a Ti:LiNbO/sub 3/ Mach-Zehnder modulator","authors":"A. Tehranchi, N. Granpayeh","doi":"10.1109/ICTON.2002.1009545","DOIUrl":"https://doi.org/10.1109/ICTON.2002.1009545","url":null,"abstract":"Using the beam propagation method, we examine numerically and simulate optical field distribution in a waveguide Mach-Zehnder modulator fabricated in z-cut LiNbO/sub 3/, where the waveguides are formed by titanium in-diffusion in LiNbO/sub 3/ substrate. The device can be optimized for high extinction ratio and low insertion loss, with symmetric branches and arms, which are easier to fabricate.","PeriodicalId":126085,"journal":{"name":"Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123941861","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
Photonic access and metropolitan area networks for broadband services 宽带业务的光子接入和城域网
Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551) Pub Date : 2002-08-07 DOI: 10.1109/ICTON.2002.1009495
T. Sato, H. Takesue, T. Sugie
{"title":"Photonic access and metropolitan area networks for broadband services","authors":"T. Sato, H. Takesue, T. Sugie","doi":"10.1109/ICTON.2002.1009495","DOIUrl":"https://doi.org/10.1109/ICTON.2002.1009495","url":null,"abstract":"Recently developed and proposed technologies for access networks and metropolitan area networks are described. Several types of networks employing WDM technology are investigated with a view to providing various broadband services and constructing cost-effective networks.","PeriodicalId":126085,"journal":{"name":"Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129664881","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
Effect of added layers on bend loss in buried channel waveguides 附加层对埋地波导弯曲损耗的影响
Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551) Pub Date : 2002-08-07 DOI: 10.1109/ICTON.2002.1009496
S. Tomijenovic-Hanic, J. Love, A. Ankiewicz, W. Krolikowski
{"title":"Effect of added layers on bend loss in buried channel waveguides","authors":"S. Tomijenovic-Hanic, J. Love, A. Ankiewicz, W. Krolikowski","doi":"10.1109/ICTON.2002.1009496","DOIUrl":"https://doi.org/10.1109/ICTON.2002.1009496","url":null,"abstract":"We propose a number of ways to control bend loss in buried channel waveguides. They are based on the introduction of additional layers with slightly different indices in the cladding. In some applications, such as switching or sensing, it may be important to increase the bend loss in the 'active' regime without increasing it in the 'passive' regime. An improved design of a variable optical attenuator, based on a bent channel waveguide, is presented as an example of applying this strategy.","PeriodicalId":126085,"journal":{"name":"Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127846366","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
Optical packet router with QoS capabilities: introductory study of computer simulator design 具有QoS功能的光分组路由器:计算机模拟器设计的导论研究
Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551) Pub Date : 2002-08-07 DOI: 10.1109/ICTON.2002.1009551
M. Klinkowski, M. Marciniak
{"title":"Optical packet router with QoS capabilities: introductory study of computer simulator design","authors":"M. Klinkowski, M. Marciniak","doi":"10.1109/ICTON.2002.1009551","DOIUrl":"https://doi.org/10.1109/ICTON.2002.1009551","url":null,"abstract":"The paper investigates the importance of an all-optical packet router with QoS capabilities logical performance simulation. The objective of the work is to study in detail the role of all important factors to be taken into account when designing a computer model of optical packet router performance. The hardware general architecture of an all-optical packet router is presented, and QoS and performance improvement mechanisms are reviewed. The functions of router control unit and aspects of control algorithms are discussed. Simulation conditions and objectives and directions of performance examination are presented as well.","PeriodicalId":126085,"journal":{"name":"Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551)","volume":"175 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120946689","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
Comparison of vertical cavity surface emitting and in-plane laser's nonlinear characteristics 垂直腔面发射与面内激光非线性特性的比较
Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551) Pub Date : 2002-08-07 DOI: 10.1109/ICTON.2002.1009556
A. Kovács, T. Marozsák, T. Berceli
{"title":"Comparison of vertical cavity surface emitting and in-plane laser's nonlinear characteristics","authors":"A. Kovács, T. Marozsák, T. Berceli","doi":"10.1109/ICTON.2002.1009556","DOIUrl":"https://doi.org/10.1109/ICTON.2002.1009556","url":null,"abstract":"In our days the indeterminate increase of claim of bandwidth can be supplied with application of optical transmission networks. The semiconductor laser diodes are the basic elements of these optical networks. This article takes a survey of VCSEL's and conventional edge emitting lasers characteristics, and measurement. Nonlinear characterization, noise, transmission, DC characteristics and comparison of the different kind of semiconductor lasers are also presented.","PeriodicalId":126085,"journal":{"name":"Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133133593","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
Fast power transients in Raman fibre amplifiers 拉曼光纤放大器中的快速功率瞬变
Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551) Pub Date : 2002-08-07 DOI: 10.1109/ICTON.2002.1007870
M. Karásek
{"title":"Fast power transients in Raman fibre amplifiers","authors":"M. Karásek","doi":"10.1109/ICTON.2002.1007870","DOIUrl":"https://doi.org/10.1109/ICTON.2002.1007870","url":null,"abstract":"We have investigated, both experimentally and theoretically, the effect of channel removal/addition on surviving channel power transients in distributed Raman fibre amplifier (RFA). Signals from two laser diodes were transmitted through counter-directionally pumped RFA consisting of 15.6 km of dispersion compensating fibre (DCF). Light of on of the laser diodes was square wave modulated at 500 Hz to simulate channel addition/removal. At the output of the RFA, the modulated channel was eliminated with an optical band-pass filter and power fluctuations of the c.w. channel were recorded with a high speed digital oscilloscope. Output power transients in RFA were studied theoretically using a large-signal numerical model that includes time variation effects and takes into account pump-to-pump and signal-to-signal interactions and generation of amplified spontaneous emission.","PeriodicalId":126085,"journal":{"name":"Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133813734","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: 4
EDF laser with double-Bragg grating selection 双布拉格光栅选择的EDF激光器
Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551) Pub Date : 2002-08-07 DOI: 10.1109/ICTON.2002.1007858
E. Beres-Pawlik, R. Bagien, P. Kaczmarek, A. Budnicki, K. Abramski
{"title":"EDF laser with double-Bragg grating selection","authors":"E. Beres-Pawlik, R. Bagien, P. Kaczmarek, A. Budnicki, K. Abramski","doi":"10.1109/ICTON.2002.1007858","DOIUrl":"https://doi.org/10.1109/ICTON.2002.1007858","url":null,"abstract":"We present a new configuration of ring erbium doped fiber laser with specific way of wavelength selection. The fiber circulator with a novel configuration of two Bragg gratings was applied. The wavelength selectivity of the ring laser can be substantially improved when the transmission characteristics of both gratings are partly overlapped. Additional element improving the stability of the laser can be obtained when its state of polarization is controlled.","PeriodicalId":126085,"journal":{"name":"Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115095588","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
The trade-offs of QoS provisioning in IP-over-WDM networks with different switching timescales 具有不同交换时间尺度的IP-over-WDM网络中QoS提供的权衡
Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551) Pub Date : 2002-08-07 DOI: 10.1109/ICTON.2002.1009516
E. Kozlovski, P. Bayvel
{"title":"The trade-offs of QoS provisioning in IP-over-WDM networks with different switching timescales","authors":"E. Kozlovski, P. Bayvel","doi":"10.1109/ICTON.2002.1009516","DOIUrl":"https://doi.org/10.1109/ICTON.2002.1009516","url":null,"abstract":"Summary form only given. We consider centralised control as it allows us to implement a request scheduler residing in the control node and carry out QoS-based scheduling of the lightpath requests issued by newly aggregated bursts as well as the dynamic lightpath allocation to these bursts. Even though there is an overhead involved in the dynamic lightpath set-up in the centralised control, we demonstrate that the overhead becomes negligible if average burst size is maintained in the timescale of tens of ms. This way, the wavelength-routed optical burst switched network (WR-OBS) represents a fast circuit-switching scheme which is positioned in between wavelength-routed optical networks (WRON) and traditional OBS in terms of switching time. We show that the WR-OBS request scheduling can effectively provide low burst blocking probability (BBP) for both high and low priority traffic classes, whilst bounding end-to-end delays for each class. We also demonstrate that the desired QoS in WR-OBS can be achieved with higher bandwidth utilisation with respect to the traditional WRON. The trade-offs between BBP, end-to-end delays and wavelength requirement are presented.","PeriodicalId":126085,"journal":{"name":"Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121556895","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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