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2012 14th International Conference on Transparent Optical Networks (ICTON)最新文献

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Dynamic effects of EDFA Spectral Hole Burning in optical burst switching systems 光突发开关系统中EDFA光谱烧孔的动态效应
2012 14th International Conference on Transparent Optical Networks (ICTON) Pub Date : 2012-07-02 DOI: 10.1109/ICTON.2012.6253928
E. Bravi, A. Kaszubowska-Anandarajah, R. Giller, R. Oberland, M. Todd, D. McDonald
{"title":"Dynamic effects of EDFA Spectral Hole Burning in optical burst switching systems","authors":"E. Bravi, A. Kaszubowska-Anandarajah, R. Giller, R. Oberland, M. Todd, D. McDonald","doi":"10.1109/ICTON.2012.6253928","DOIUrl":"https://doi.org/10.1109/ICTON.2012.6253928","url":null,"abstract":"The benefits of adopting optical burst switching (OBS) in optical networks as well as the technological issues of the optical layer have been extensively studied. One of the challenges in developing commercial OBS systems is the use of the Erbium-Doped Fiber Amplifier (EDFA) technology to amplify bursty optical signals. A significant impairment in EDFA-based OBS systems is caused by the Spectral Hole Burning (SHB) of the EDFA. Due to this effect, the presence of a channel at a given wavelength induces a localised reduction in the EDFA gain spectrum that is a few nm wide (“a spectral hole”). An optical burst crossing an EDFA will require a certain amount of time to induce a hole in the gain spectrum; during this time the burst itself will therefore experience a variable gain. Under particular traffic conditions, this effect accumulates over a cascade of EDFAs resulting in large power excursions of the burst. In this paper the authors characterize the dynamics of SHB in OBS systems and describe its effect on the optical performance.","PeriodicalId":217442,"journal":{"name":"2012 14th International Conference on Transparent Optical Networks (ICTON)","volume":"2015 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127318167","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
Metallic samples investigated by using a scattering near field optical microscope 用散射近场光学显微镜对金属样品进行了研究
2012 14th International Conference on Transparent Optical Networks (ICTON) Pub Date : 2012-07-02 DOI: 10.1109/ICTON.2012.6253948
G. Stanciu, C. Stoichita, R. Hristu, S. Stanciu, D. Tranca
{"title":"Metallic samples investigated by using a scattering near field optical microscope","authors":"G. Stanciu, C. Stoichita, R. Hristu, S. Stanciu, D. Tranca","doi":"10.1109/ICTON.2012.6253948","DOIUrl":"https://doi.org/10.1109/ICTON.2012.6253948","url":null,"abstract":"Scanning near-field microscopy can overcome diffraction limitation by exploiting the evanescent near fields existing close to any illuminated object. For investigations we used a scattering-type near-field optical microscope (s-SNOM). As the main problem of this kind of microscopy is connected with near field detection we focused on the metallic samples investigations based on the pseudoheterodyne detection. The influence of the oscillating mirror amplitude on the contrast image was studied. Lately the s-SNOM was successfully used for different investigations on the metallic nanoparticles.","PeriodicalId":217442,"journal":{"name":"2012 14th International Conference on Transparent Optical Networks (ICTON)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125503766","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
Focalization of evanescent beams 消逝光束的聚焦
2012 14th International Conference on Transparent Optical Networks (ICTON) Pub Date : 2012-07-02 DOI: 10.1109/ICTON.2012.6253923
M. Botey, Y. C. Cheng, R. Herrero, V. Romero-García, R. Picó, V. Sánchez-Morcillo, K. Staliūnas
{"title":"Focalization of evanescent beams","authors":"M. Botey, Y. C. Cheng, R. Herrero, V. Romero-García, R. Picó, V. Sánchez-Morcillo, K. Staliūnas","doi":"10.1109/ICTON.2012.6253923","DOIUrl":"https://doi.org/10.1109/ICTON.2012.6253923","url":null,"abstract":"We predict and show the existence of unlocked evanescent waves in two dimensional periodic structures. In a one dimensional periodic structure an evanescent mode are located either at the center or at the boundary of the Brillouin Zone, and the real part of wave-vectors is locked either to zero or to the modulation vector of the periodicity. However, we report an unexpected observation that this is not the case in 2D or 3D PhCs where \"unlocked\" complex modes can be predicted. As an interesting consequence, due to their “complex” character, or, equivalently, due to their phase freedom, beams constructed from such evanescent waves can show focalization effects. Indeed, we numerically simulate the propagation of such beams in the bandgap of PhC slabs, and we find significant focalization.","PeriodicalId":217442,"journal":{"name":"2012 14th International Conference on Transparent Optical Networks (ICTON)","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126938538","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
High-speed wireless infrared links with an adaptive multibeam clustering method and angle diversity detection 高速无线红外链路采用自适应多波束聚类方法和角度分集检测
2012 14th International Conference on Transparent Optical Networks (ICTON) Pub Date : 2012-07-02 DOI: 10.1109/ICTON.2012.6253886
M. Alresheedi, J. Elmirghani
{"title":"High-speed wireless infrared links with an adaptive multibeam clustering method and angle diversity detection","authors":"M. Alresheedi, J. Elmirghani","doi":"10.1109/ICTON.2012.6253886","DOIUrl":"https://doi.org/10.1109/ICTON.2012.6253886","url":null,"abstract":"In this paper, we propose a mobile optical wireless (OW) system that employs a beam delay and a power adaptation multibeam clustering method in conjunction with an angle diversity receiver (BDPA-BCM). Our ultimate goal is to improve the signal to noise ratio (SNR), reduce the delay spread and increase the received optical power under multipath dispersion, background noise and mobility. A significant reduction in delay spread by nearly a factor of fifteen and an enhanced SNR by almost 10 dB over a line strip multibeam system (LSMS) can be achieved when a beam delay and power adaptation line strip multibeam system (BDPA-LSMS) coupled with an angle diversity receiver is employed. At a bit rate of 50 Mbit/s, the proposed BDPA-BCM offers about a 10 dB SNR gain over a BDPA-LSMS. A further improvement in the delay spread of the BDPA-BCM by a factor of eight compared with the BDPA-LSMS is achieved. The improvements in the delay spread and the SNR enable the BDPA-BCM to operate at higher data rates of 2.5 Gb/s and 5 Gb/s. Our simulation results show that the modified BDPA-BCM at a bit rate of 5 Gb/s achieves about 16 dB SNR for the worst communication path under the presence of background noise and mobility while achieving a BER below 10-9.","PeriodicalId":217442,"journal":{"name":"2012 14th International Conference on Transparent Optical Networks (ICTON)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114296915","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
Improving plasmonic waveguides coupling efficiency using nanoantennas 利用纳米天线提高等离子波导耦合效率
2012 14th International Conference on Transparent Optical Networks (ICTON) Pub Date : 2012-07-02 DOI: 10.1109/ICTON.2012.6254399
A. Andryieuski, R. Malureanu, J. Bouillard, A. Zayats, A. Lavrinenko
{"title":"Improving plasmonic waveguides coupling efficiency using nanoantennas","authors":"A. Andryieuski, R. Malureanu, J. Bouillard, A. Zayats, A. Lavrinenko","doi":"10.1109/ICTON.2012.6254399","DOIUrl":"https://doi.org/10.1109/ICTON.2012.6254399","url":null,"abstract":"Plasmonic waveguides bear a lot of potential for photonic applications. However, one of the challenges for implementing them in devices is the low coupling efficiency to and from optical fibers. We report on our approach to facilitate the coupling efficiency with the use of metallic nanoantennas. The classical dipole antenna scheme can be improved by changing the nanoantenna geometry, adding constructive elements such as reflecting bars and mirrors and using arrays of antennas. The modelling designates that the coupling efficiency from a vertical fiber to a plasmonic waveguide can be improved more than in 180 times in comparison with a direct fiber-waveguide coupling. Pros and cons of each configuration are discussed. Fabrication and characterisation results are reported.","PeriodicalId":217442,"journal":{"name":"2012 14th International Conference on Transparent Optical Networks (ICTON)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114385813","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 injection influence on quantum dot-in-a-well (QDWELL) laser dynamics 光注入对量子阱中点(QDWELL)激光动力学的影响
2012 14th International Conference on Transparent Optical Networks (ICTON) Pub Date : 2012-07-02 DOI: 10.1109/ICTON.2012.6254488
B. Lembrikov, Y. Ben-Ezra
{"title":"Optical injection influence on quantum dot-in-a-well (QDWELL) laser dynamics","authors":"B. Lembrikov, Y. Ben-Ezra","doi":"10.1109/ICTON.2012.6254488","DOIUrl":"https://doi.org/10.1109/ICTON.2012.6254488","url":null,"abstract":"A QD laser with the dots-in-a-well structure (QDWELL laser) is characterized by the increased emission wavelength and low threshold current density. However, QDWELL laser manifests a high performance for the pulse repetition frequencies up to 7 GHz. The optical injection locking of semiconductor lasers substantially improves their performance. We, for the first time, investigated theoretically the influence of the optical injection on the QDWELL laser dynamics taking into account both the electron and the hole behavior in QW and in QDs. The results show that the maximum modulation frequency increases up to 30 GHz, the electron and hole dynamics is synchronized, and the oscillations occur at the strong injection level.","PeriodicalId":217442,"journal":{"name":"2012 14th International Conference on Transparent Optical Networks (ICTON)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122145019","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
Recent progress in polarization bistable VCSELs 偏振双稳态VCSELs的最新进展
2012 14th International Conference on Transparent Optical Networks (ICTON) Pub Date : 2012-07-02 DOI: 10.1109/ICTON.2012.6254393
H. Kawaguchi
{"title":"Recent progress in polarization bistable VCSELs","authors":"H. Kawaguchi","doi":"10.1109/ICTON.2012.6254393","DOIUrl":"https://doi.org/10.1109/ICTON.2012.6254393","url":null,"abstract":"We overview recent status of polarization-bistable VCSELs and their applications to optical buffer memory. All-optical flip-flop operation was achieved at a record low bias current of 0.85 mA using 980 nm polarization-bistable VCSELs with an oxidation confinement structure. Using four 1.55 μm polarization-bistable VCSELs, we constructed a 4 bit optical buffer memory. Here, two sets of the shift-register memory connected in parallel.","PeriodicalId":217442,"journal":{"name":"2012 14th International Conference on Transparent Optical Networks (ICTON)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117011160","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
Optical filtering optimization for NRZ coding format in RSOA-based DWDM PON 基于rsoa的DWDM PON中NRZ编码格式的光滤波优化
2012 14th International Conference on Transparent Optical Networks (ICTON) Pub Date : 2012-07-02 DOI: 10.1109/ICTON.2012.6253806
Z. Vujicic, N. Pavlovic, A. Teixeira
{"title":"Optical filtering optimization for NRZ coding format in RSOA-based DWDM PON","authors":"Z. Vujicic, N. Pavlovic, A. Teixeira","doi":"10.1109/ICTON.2012.6253806","DOIUrl":"https://doi.org/10.1109/ICTON.2012.6253806","url":null,"abstract":"A dynamic, wideband model for simulation of spatial-temporal distribution of photons and carriers in a bulk InP-InGaAsP reflective semiconductor optical amplifier (RSOA) is presented. Saturation and noise characteristics are successfully predicted and in good accordance with theoretical predictions found in literature. Based on RSOA model and a model for access network link, numerical optimization of multiplexing (MUX) and demultiplexing (DMUX) 3-dB filter bandwidths when transmitting non-return-to-zero (NRZ) format is preformed. The access network simulated scenario is based on high density (<; 25 GHz channel spacing) arrayed waveguide grating (AWG) and remodulation of 10 Gbit/s NRZ signal by using RSOA.","PeriodicalId":217442,"journal":{"name":"2012 14th International Conference on Transparent Optical Networks (ICTON)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117017447","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
Development of low loss, wide bandwidth hollow core photonic bandgap fibres for telecom applications 电信用低损耗、宽带宽空芯光子带隙光纤的研制
2012 14th International Conference on Transparent Optical Networks (ICTON) Pub Date : 2012-07-02 DOI: 10.1109/ICTON.2012.6253894
Marco N. Petrovich, N. Wheeler, N. Baddela, F. Poletti, E. N. Fokoua, J. Hayes, D. Gray, D. Richardson
{"title":"Development of low loss, wide bandwidth hollow core photonic bandgap fibres for telecom applications","authors":"Marco N. Petrovich, N. Wheeler, N. Baddela, F. Poletti, E. N. Fokoua, J. Hayes, D. Gray, D. Richardson","doi":"10.1109/ICTON.2012.6253894","DOIUrl":"https://doi.org/10.1109/ICTON.2012.6253894","url":null,"abstract":"Hollow core Photonic Bandgap Fibres (PBGFs) with a 19-cell core geometry and displaying ultralow loss over record 3 dB transmission bandwidths have been developed. In particular, we demonstrate PBGFs with as low as 4.5 dB/km loss at 2 μm and over >;150 nm wide sub-10 dB/km transmission. Absorbing gas species present in our fibres were identified and their loss contribution quantified. An initial explanation on the origin of CO2 absorption around 2 μm is formulated along with possible means for its removal.","PeriodicalId":217442,"journal":{"name":"2012 14th International Conference on Transparent Optical Networks (ICTON)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129960569","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
Dynamic setup of multi-granular services over next-generation OTN/DWDM networks: Blocking versus add/drop port usage 下一代OTN/DWDM网络上多粒度业务的动态设置:阻塞与添加/删除端口的使用
2012 14th International Conference on Transparent Optical Networks (ICTON) Pub Date : 2012-07-02 DOI: 10.1109/ICTON.2012.6253705
J. Pedro, J. Santos, R. Morais
{"title":"Dynamic setup of multi-granular services over next-generation OTN/DWDM networks: Blocking versus add/drop port usage","authors":"J. Pedro, J. Santos, R. Morais","doi":"10.1109/ICTON.2012.6253705","DOIUrl":"https://doi.org/10.1109/ICTON.2012.6253705","url":null,"abstract":"Next-generation transport network nodes integrate optical switching of coarse-grained wavelength channels with electrical switching of fine-grained optical channel data units (ODUs). This node design aims at a compromise between improving the wavelength channel fill ratio and maximizing the optical bypass of full or near-full wavelength channels, thereby minimizing transponder requirements. Moreover, the utilization of a control plane aware of both layers provides the adequate means for the dynamic setup and tear-down of multi-granular services. This paper assesses the trade-off between the blocking performance perceived by the network operator and the size of the transponder pool available at each node for different network and traffic configurations.","PeriodicalId":217442,"journal":{"name":"2012 14th International Conference on Transparent Optical Networks (ICTON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128687747","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: 10
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