Pub Date : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519118
K. Clarke, T. Anderson, S. Dods
We describe a novel approach to optical monitoring for the effective management of future all-optical networks carrying multiple modulation formats and bit-rates that uses a narrowband optical filter in combination with asynchronous delay-tap sampling.
{"title":"Monitoring of Multiple Modulation Formats using Asynchronous Delay-tap Sampling","authors":"K. Clarke, T. Anderson, S. Dods","doi":"10.1109/COINACOFT.2007.4519118","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519118","url":null,"abstract":"We describe a novel approach to optical monitoring for the effective management of future all-optical networks carrying multiple modulation formats and bit-rates that uses a narrowband optical filter in combination with asynchronous delay-tap sampling.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"27 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75215062","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 : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519120
K. Hinton, R. Tucker, P. Farrell
An "order of magnitude" estimate for the (power)x(length)2 of several all-optical switching technologies is presented. We show that all-optical technologies will require significantly more power and/or space than current CMOS switching technologies.
{"title":"Order of Magnitude Estimates of Size and Power for All-Optical Switches","authors":"K. Hinton, R. Tucker, P. Farrell","doi":"10.1109/COINACOFT.2007.4519120","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519120","url":null,"abstract":"An \"order of magnitude\" estimate for the (power)x(length)2 of several all-optical switching technologies is presented. We show that all-optical technologies will require significantly more power and/or space than current CMOS switching technologies.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"25 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73752271","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 : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519147
Hoon-Keun Lee, Hyuek-Jae Lee, Changhee Lee
We propose and demonstrate a low cost wavelength division multiplexing-passive optical network (WDM-PON) based on the spectrum sliced Fabry-Perot laser diodes (F-P LDs). By using cyclic arrayed waveguide gratings (AWGs), we achieve color-free operation with decision threshold control.
Pub Date : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519085
K. Kikuchi
We discuss the digital coherent receiver, which can cope with any multi-level optical modulation format. The carrier-phase drift is estimated with digital signal processing, entirely restoring the optical complex amplitude without using optical phase-locked loop.
{"title":"Digital Coherent Optical Receivers","authors":"K. Kikuchi","doi":"10.1109/COINACOFT.2007.4519085","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519085","url":null,"abstract":"We discuss the digital coherent receiver, which can cope with any multi-level optical modulation format. The carrier-phase drift is estimated with digital signal processing, entirely restoring the optical complex amplitude without using optical phase-locked loop.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"25 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83662271","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 : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519148
C. Zha, B. Luther-Davies, Rongping Wang, S. Madden
Ag-doping in chalcogenide glasses can significantly increase the material's optical nonlinearity. This paper describes our study on Ag-doped As2Se3 glasses. The effect of Ag doping on the glass structure and optical properties have been discussed.
{"title":"Highly Optical Nonlinear Ag-doped As2Se3 Glasses: Preparation and Characterization","authors":"C. Zha, B. Luther-Davies, Rongping Wang, S. Madden","doi":"10.1109/COINACOFT.2007.4519148","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519148","url":null,"abstract":"Ag-doping in chalcogenide glasses can significantly increase the material's optical nonlinearity. This paper describes our study on Ag-doped As2Se3 glasses. The effect of Ag doping on the glass structure and optical properties have been discussed.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"72 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83725728","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 : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519107
H. Yamamoto, M. Osogoe, T. Takahashi
We proposed a flow control protocol to attain higher throughput in rather high packet loss environment by controlling packet size as well as window size. Since this protocol takes rather aggressive policy, throughput of existing TCP is severely depressed by the coexisting flows with proposed protocol. This paper introduces RTT analysis into flow control protocol to improve fairness.
{"title":"Improving Fairness of Adaptive Flow Control Protocol for Optical Packet Networks","authors":"H. Yamamoto, M. Osogoe, T. Takahashi","doi":"10.1109/COINACOFT.2007.4519107","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519107","url":null,"abstract":"We proposed a flow control protocol to attain higher throughput in rather high packet loss environment by controlling packet size as well as window size. Since this protocol takes rather aggressive policy, throughput of existing TCP is severely depressed by the coexisting flows with proposed protocol. This paper introduces RTT analysis into flow control protocol to improve fairness.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"16 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80255729","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 : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519185
Tan Zhi, A. Mitchell
A generalized scattering matrix model is introduced to rigorously model substrate resonances in highspeed LiNbO3 electrooptic modulators. Performance degradation due to substrate resonances are accurately simulated and potential techniques to suppress such effects are investigated.
{"title":"Investigation of Substrate Modes in High-Speed LiNbO3 Electro-optic Modulators","authors":"Tan Zhi, A. Mitchell","doi":"10.1109/COINACOFT.2007.4519185","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519185","url":null,"abstract":"A generalized scattering matrix model is introduced to rigorously model substrate resonances in highspeed LiNbO3 electrooptic modulators. Performance degradation due to substrate resonances are accurately simulated and potential techniques to suppress such effects are investigated.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"3 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83021670","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 : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519168
D. Choi, S. Madden, A. Rode, Rongping Wang, B. Luther-Davies, N. Baker, B. Eggleton
We report the fabrication of high quality comb filters in a photosensitive chalcogenide glass rib waveguide where the shadow mask required to create the grating was integrated directly onto the waveguide chip.
{"title":"High Quality Comb Filters in Chalcogenide Rib Waveguides","authors":"D. Choi, S. Madden, A. Rode, Rongping Wang, B. Luther-Davies, N. Baker, B. Eggleton","doi":"10.1109/COINACOFT.2007.4519168","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519168","url":null,"abstract":"We report the fabrication of high quality comb filters in a photosensitive chalcogenide glass rib waveguide where the shadow mask required to create the grating was integrated directly onto the waveguide chip.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"24 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89238921","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 : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519103
B. Gibson, C. Rollinson, S. Huntington, J. Canning, M. Stevenson, K. Lyytikainen, J. Love, V. Steblina
A new type of optical probe, based on a fractal fibre which is a special class of photonic crystal fibre (PCF), is introduced to directly address the issue of increasing the optical throughput in SNOM probes.
{"title":"Ultra-high Throughput Optical Probes based on Fractal Fibre","authors":"B. Gibson, C. Rollinson, S. Huntington, J. Canning, M. Stevenson, K. Lyytikainen, J. Love, V. Steblina","doi":"10.1109/COINACOFT.2007.4519103","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519103","url":null,"abstract":"A new type of optical probe, based on a fractal fibre which is a special class of photonic crystal fibre (PCF), is introduced to directly address the issue of increasing the optical throughput in SNOM probes.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"1 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89937017","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 : 2007-06-24DOI: 10.1109/COINACOFT.2007.4519075
Arthur James Lowery, J. Armstrong
An ideal dispersion compensator for long haul optical transmission would have no optical loss, be self-adapting to any fiber plant, on a rapid timescale, not introduce any penalty in sensitivity, and require no components between the transmitter and receiver. In this paper we discuss recent progress in optical orthogonal frequency division multiplexing (OFDM); a technique that approaches this ideal.
{"title":"Dispersion Compensation in Long Haul Transmission Systems - an Orthogonal Approach","authors":"Arthur James Lowery, J. Armstrong","doi":"10.1109/COINACOFT.2007.4519075","DOIUrl":"https://doi.org/10.1109/COINACOFT.2007.4519075","url":null,"abstract":"An ideal dispersion compensator for long haul optical transmission would have no optical loss, be self-adapting to any fiber plant, on a rapid timescale, not introduce any penalty in sensitivity, and require no components between the transmitter and receiver. In this paper we discuss recent progress in optical orthogonal frequency division multiplexing (OFDM); a technique that approaches this ideal.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"12 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86283493","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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