Pub Date : 2009-07-20DOI: 10.1109/LEOSST.2009.5226240
Zhensen Gao, Xu Wang, N. Kataoka, N. Wada
We proposed and experimentally demonstrated time-domain spectral phase encoding scheme using single phase modulator for 8-chip, 20GHz/chip optical code generation and 2.5 Gbps DPSK data modulation, and successfully transmitted and decoded the data with BER≪10−9
{"title":"Demonstration of time-domain spectral phase encoding/DPSK data modulation using single phase modulator","authors":"Zhensen Gao, Xu Wang, N. Kataoka, N. Wada","doi":"10.1109/LEOSST.2009.5226240","DOIUrl":"https://doi.org/10.1109/LEOSST.2009.5226240","url":null,"abstract":"We proposed and experimentally demonstrated time-domain spectral phase encoding scheme using single phase modulator for 8-chip, 20GHz/chip optical code generation and 2.5 Gbps DPSK data modulation, and successfully transmitted and decoded the data with BER≪10−9","PeriodicalId":308737,"journal":{"name":"2009 IEEE/LEOS Summer Topical Meeting","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128418760","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}
Pub Date : 2009-07-20DOI: 10.1109/LEOSST.2009.5226229
A. Savchenkov, W. Liang, A. Matsko, V. Ilchenko, D. Seidel, L. Maleki
We demonstrate a broadly tunable and highly efficient resonant electro-optical modulator based on a whispering gallery mode resonator made with an electro optic crystal. This device is used to engineer a tunable opto-electronic oscillator.
{"title":"Tunable resonant single-sideband electro-optical modulator","authors":"A. Savchenkov, W. Liang, A. Matsko, V. Ilchenko, D. Seidel, L. Maleki","doi":"10.1109/LEOSST.2009.5226229","DOIUrl":"https://doi.org/10.1109/LEOSST.2009.5226229","url":null,"abstract":"We demonstrate a broadly tunable and highly efficient resonant electro-optical modulator based on a whispering gallery mode resonator made with an electro optic crystal. This device is used to engineer a tunable opto-electronic oscillator.","PeriodicalId":308737,"journal":{"name":"2009 IEEE/LEOS Summer Topical Meeting","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132948014","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}
Pub Date : 2009-07-20DOI: 10.1109/LEOSST.2009.5226248
Donald C. Lee
Internet usage has accelerated in past months. As a web company, we must scale cost-effectively amidst drivers like clustered computing, video, and events. To continue growth and richness of the web, new approaches must be devised.
{"title":"Network evolution from a web company point of view","authors":"Donald C. Lee","doi":"10.1109/LEOSST.2009.5226248","DOIUrl":"https://doi.org/10.1109/LEOSST.2009.5226248","url":null,"abstract":"Internet usage has accelerated in past months. As a web company, we must scale cost-effectively amidst drivers like clustered computing, video, and events. To continue growth and richness of the web, new approaches must be devised.","PeriodicalId":308737,"journal":{"name":"2009 IEEE/LEOS Summer Topical Meeting","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130838671","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}
Pub Date : 2009-07-20DOI: 10.1109/LEOSST.2009.5226239
Yanhua Deng, M. Fok, P. Prucnal
We experimentally demonstrate asynchronous detection of optical CDMA signals with a dispersion-imbalanced loop mirror, which makes the signals compatible with off-the-shelf CDR units by removing multiple-access interference and interferometric noise.
{"title":"Asynchronous detection with clock and data recovery in optical CDMA networks using a dispersion-imbalanced loop mirror","authors":"Yanhua Deng, M. Fok, P. Prucnal","doi":"10.1109/LEOSST.2009.5226239","DOIUrl":"https://doi.org/10.1109/LEOSST.2009.5226239","url":null,"abstract":"We experimentally demonstrate asynchronous detection of optical CDMA signals with a dispersion-imbalanced loop mirror, which makes the signals compatible with off-the-shelf CDR units by removing multiple-access interference and interferometric noise.","PeriodicalId":308737,"journal":{"name":"2009 IEEE/LEOS Summer Topical Meeting","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134206842","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}
Pub Date : 2009-07-20DOI: 10.1109/LEOSST.2009.5226251
Amin Vahdat
Growing expertise with clusters of commodity PCs have enabled a number of companies to harness petaflops of computation power and petabytes of storage in a cost-efficient manner. Clusters consisting of tens of thousands of PCs are not unheard of in the largest companies and thousand-node clusters are increasingly common in universities, research labs, and companies. Important applications classes include scientific computing, financial analysis, data analysis and warehousing, and large-scale network services. In response to these trends, the data center infrastructure has retooled to extract maximum efficiency from available computation and storage, with particular emphasis on power, cooling, and density.
{"title":"The impact of mega-scale data centers on internet architecture","authors":"Amin Vahdat","doi":"10.1109/LEOSST.2009.5226251","DOIUrl":"https://doi.org/10.1109/LEOSST.2009.5226251","url":null,"abstract":"Growing expertise with clusters of commodity PCs have enabled a number of companies to harness petaflops of computation power and petabytes of storage in a cost-efficient manner. Clusters consisting of tens of thousands of PCs are not unheard of in the largest companies and thousand-node clusters are increasingly common in universities, research labs, and companies. Important applications classes include scientific computing, financial analysis, data analysis and warehousing, and large-scale network services. In response to these trends, the data center infrastructure has retooled to extract maximum efficiency from available computation and storage, with particular emphasis on power, cooling, and density.","PeriodicalId":308737,"journal":{"name":"2009 IEEE/LEOS Summer Topical Meeting","volume":"211 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115417780","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}
Pub Date : 2009-07-20DOI: 10.1109/LEOSST.2009.5226274
N. Kataoka
We review a full-duplex, 10Gbps DPSK-OCDMA system including OCDMA/WDM system configuration, hybrid multi-port and SSFBG encoding/decoding devices, OCDMA prototype, and demonstrations.
Pub Date : 2009-07-20DOI: 10.1109/LEOSST.2009.5226269
P. Monteiro, S. Pato, J. Pedro, J. Santos, D. Wake, A. Nkansah, N. Gomes, E. López, A. Gameiro
An overview of the FUTON project is presented, with emphasis on the optical link design for radio-over-fiber communication and virtual-MIMO functionalities between multiple remote antenna units and a centralized processing site.
{"title":"Radio-over-fiber as the enabler for joint processing of spatially separated radio signals","authors":"P. Monteiro, S. Pato, J. Pedro, J. Santos, D. Wake, A. Nkansah, N. Gomes, E. López, A. Gameiro","doi":"10.1109/LEOSST.2009.5226269","DOIUrl":"https://doi.org/10.1109/LEOSST.2009.5226269","url":null,"abstract":"An overview of the FUTON project is presented, with emphasis on the optical link design for radio-over-fiber communication and virtual-MIMO functionalities between multiple remote antenna units and a centralized processing site.","PeriodicalId":308737,"journal":{"name":"2009 IEEE/LEOS Summer Topical Meeting","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116010707","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}
Pub Date : 2009-07-20DOI: 10.1109/LEOSST.2009.5226212
A. Ellis, Ioannis Tomkos, A. Mishra, Jian Zhao, S. Ibrahim, P. Frascella, F. Gunning
In this presentation we will discuss recent advances in adaptive modulation schemes for ultra high bit capacity optical networks. This paper focuses on optimising the sub-carrier spacing for such high capacity networks..
{"title":"Adaptive modulation schemes","authors":"A. Ellis, Ioannis Tomkos, A. Mishra, Jian Zhao, S. Ibrahim, P. Frascella, F. Gunning","doi":"10.1109/LEOSST.2009.5226212","DOIUrl":"https://doi.org/10.1109/LEOSST.2009.5226212","url":null,"abstract":"In this presentation we will discuss recent advances in adaptive modulation schemes for ultra high bit capacity optical networks. This paper focuses on optimising the sub-carrier spacing for such high capacity networks..","PeriodicalId":308737,"journal":{"name":"2009 IEEE/LEOS Summer Topical Meeting","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132213696","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}
Pub Date : 2009-07-20DOI: 10.1109/LEOSST.2009.5226230
V. Torres‐Company, Lawrence R. Chen
We propose an arbitrary radio-frequency waveform generator with high-speed switching capabilities. As a proof-of-principle demonstration, we design a two-tap filter with Gb/s transitions between triangle and square waveforms with ∼12 GHz bandwidth content.
{"title":"Arbitrary RF-waveform generator with rapid switching capabilities using the temporal Lau effect","authors":"V. Torres‐Company, Lawrence R. Chen","doi":"10.1109/LEOSST.2009.5226230","DOIUrl":"https://doi.org/10.1109/LEOSST.2009.5226230","url":null,"abstract":"We propose an arbitrary radio-frequency waveform generator with high-speed switching capabilities. As a proof-of-principle demonstration, we design a two-tap filter with Gb/s transitions between triangle and square waveforms with ∼12 GHz bandwidth content.","PeriodicalId":308737,"journal":{"name":"2009 IEEE/LEOS Summer Topical Meeting","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132550886","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}
Pub Date : 2009-07-20DOI: 10.1109/LEOSST.2009.5226225
Ying Jiang, I. Papagiannakis, Xuefeng Tang, D. Klonidis, A. Birbas, Ioannis Tomkos, J. Cartledge, K. Roberts
Using a recirculating loop, the performance improvement for cascaded optical filtering by using precompensation at the transmitter and post-compensation at the receiver is compared.
利用循环回路，比较了在发送端采用预补偿和在接收端采用后补偿对级联光滤波性能的改善。
{"title":"Comparison of electronic pre-compensation and post-compensation for cascaded optical filtering of 10 Gb/s NRZ-OOK signals","authors":"Ying Jiang, I. Papagiannakis, Xuefeng Tang, D. Klonidis, A. Birbas, Ioannis Tomkos, J. Cartledge, K. Roberts","doi":"10.1109/LEOSST.2009.5226225","DOIUrl":"https://doi.org/10.1109/LEOSST.2009.5226225","url":null,"abstract":"Using a recirculating loop, the performance improvement for cascaded optical filtering by using precompensation at the transmitter and post-compensation at the receiver is compared.","PeriodicalId":308737,"journal":{"name":"2009 IEEE/LEOS Summer Topical Meeting","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132565005","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}
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