The Experts below are selected from a list of 12081 Experts worldwide ranked by ideXlab platform
Greg Simer - One of the best experts on this subject based on the ideXlab platform.
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polarization mode dispersion compensator field trial and field fiber characterization
Optics Express, 2002Co-Authors: Daniel L Peterson, Bryan C Ward, Kent B. Rochford, Greg SimerAbstract:Two high-PMD long distance routes were characterized and used to test an optical polarization mode dispersion compensator (PMDC) under field conditions. For this trial, 110 km routes with mean PMD values of 25 and 26.5 ps were provisioned with commercial WDM transport equipment and tested for several weeks. The route was comprised of three spans of characterized fiber that followed Railroad Tracks. We show the temporal variation of the output polarization state and the evolution of first- and second-order PMD spectra over 7 days. The deployment of a variable-length PMDC on these links allowed error-free transmission of an OC-192 signal. Splitting the output to receivers with and without PMDC demonstrated specific PMD events that caused errors in the absence of a PMDC. (C) 2002 Optical Society of America.
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polarization mode dispersion compensator field trial and field fiber characterization
Optics Express, 2002Co-Authors: Daniel L Peterson, Bryan C Ward, Kent B. Rochford, Paul Leo, Greg SimerAbstract:Two high-PMD long distance routes were characterized and used to test an optical polarization mode dispersion compensator (PMDC) under field conditions. For this trial, 110 km routes with mean PMD values of 25 and 26.5 ps were provisioned with commercial WDM transport equipment and tested for several weeks. The route was comprised of three spans of characterized fiber that followed Railroad Tracks. We show the temporal variation of the output polarization state and the evolution of first- and second-order PMD spectra over 7 days. The deployment of a variablelength PMDC on these links allowed error-free transmission of an OC-192 signal. Splitting the output to receivers with and without PMDC demonstrated specific PMD events that caused errors in the absence of a PMDC.
Daniel L Peterson - One of the best experts on this subject based on the ideXlab platform.
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polarization mode dispersion compensator field trial and field fiber characterization
Optics Express, 2002Co-Authors: Daniel L Peterson, Bryan C Ward, Kent B. Rochford, Greg SimerAbstract:Two high-PMD long distance routes were characterized and used to test an optical polarization mode dispersion compensator (PMDC) under field conditions. For this trial, 110 km routes with mean PMD values of 25 and 26.5 ps were provisioned with commercial WDM transport equipment and tested for several weeks. The route was comprised of three spans of characterized fiber that followed Railroad Tracks. We show the temporal variation of the output polarization state and the evolution of first- and second-order PMD spectra over 7 days. The deployment of a variable-length PMDC on these links allowed error-free transmission of an OC-192 signal. Splitting the output to receivers with and without PMDC demonstrated specific PMD events that caused errors in the absence of a PMDC. (C) 2002 Optical Society of America.
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polarization mode dispersion compensator field trial and field fiber characterization
Optics Express, 2002Co-Authors: Daniel L Peterson, Bryan C Ward, Kent B. Rochford, Paul Leo, Greg SimerAbstract:Two high-PMD long distance routes were characterized and used to test an optical polarization mode dispersion compensator (PMDC) under field conditions. For this trial, 110 km routes with mean PMD values of 25 and 26.5 ps were provisioned with commercial WDM transport equipment and tested for several weeks. The route was comprised of three spans of characterized fiber that followed Railroad Tracks. We show the temporal variation of the output polarization state and the evolution of first- and second-order PMD spectra over 7 days. The deployment of a variablelength PMDC on these links allowed error-free transmission of an OC-192 signal. Splitting the output to receivers with and without PMDC demonstrated specific PMD events that caused errors in the absence of a PMDC.
Kent B. Rochford - One of the best experts on this subject based on the ideXlab platform.
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polarization mode dispersion compensator field trial and field fiber characterization
Optics Express, 2002Co-Authors: Daniel L Peterson, Bryan C Ward, Kent B. Rochford, Greg SimerAbstract:Two high-PMD long distance routes were characterized and used to test an optical polarization mode dispersion compensator (PMDC) under field conditions. For this trial, 110 km routes with mean PMD values of 25 and 26.5 ps were provisioned with commercial WDM transport equipment and tested for several weeks. The route was comprised of three spans of characterized fiber that followed Railroad Tracks. We show the temporal variation of the output polarization state and the evolution of first- and second-order PMD spectra over 7 days. The deployment of a variable-length PMDC on these links allowed error-free transmission of an OC-192 signal. Splitting the output to receivers with and without PMDC demonstrated specific PMD events that caused errors in the absence of a PMDC. (C) 2002 Optical Society of America.
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polarization mode dispersion compensator field trial and field fiber characterization
Optics Express, 2002Co-Authors: Daniel L Peterson, Bryan C Ward, Kent B. Rochford, Paul Leo, Greg SimerAbstract:Two high-PMD long distance routes were characterized and used to test an optical polarization mode dispersion compensator (PMDC) under field conditions. For this trial, 110 km routes with mean PMD values of 25 and 26.5 ps were provisioned with commercial WDM transport equipment and tested for several weeks. The route was comprised of three spans of characterized fiber that followed Railroad Tracks. We show the temporal variation of the output polarization state and the evolution of first- and second-order PMD spectra over 7 days. The deployment of a variablelength PMDC on these links allowed error-free transmission of an OC-192 signal. Splitting the output to receivers with and without PMDC demonstrated specific PMD events that caused errors in the absence of a PMDC.
Bryan C Ward - One of the best experts on this subject based on the ideXlab platform.
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polarization mode dispersion compensator field trial and field fiber characterization
Optics Express, 2002Co-Authors: Daniel L Peterson, Bryan C Ward, Kent B. Rochford, Greg SimerAbstract:Two high-PMD long distance routes were characterized and used to test an optical polarization mode dispersion compensator (PMDC) under field conditions. For this trial, 110 km routes with mean PMD values of 25 and 26.5 ps were provisioned with commercial WDM transport equipment and tested for several weeks. The route was comprised of three spans of characterized fiber that followed Railroad Tracks. We show the temporal variation of the output polarization state and the evolution of first- and second-order PMD spectra over 7 days. The deployment of a variable-length PMDC on these links allowed error-free transmission of an OC-192 signal. Splitting the output to receivers with and without PMDC demonstrated specific PMD events that caused errors in the absence of a PMDC. (C) 2002 Optical Society of America.
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polarization mode dispersion compensator field trial and field fiber characterization
Optics Express, 2002Co-Authors: Daniel L Peterson, Bryan C Ward, Kent B. Rochford, Paul Leo, Greg SimerAbstract:Two high-PMD long distance routes were characterized and used to test an optical polarization mode dispersion compensator (PMDC) under field conditions. For this trial, 110 km routes with mean PMD values of 25 and 26.5 ps were provisioned with commercial WDM transport equipment and tested for several weeks. The route was comprised of three spans of characterized fiber that followed Railroad Tracks. We show the temporal variation of the output polarization state and the evolution of first- and second-order PMD spectra over 7 days. The deployment of a variablelength PMDC on these links allowed error-free transmission of an OC-192 signal. Splitting the output to receivers with and without PMDC demonstrated specific PMD events that caused errors in the absence of a PMDC.
Eva Nogales - One of the best experts on this subject based on the ideXlab platform.
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saccharomyces cerevisiae septins supramolecular organization of heterooligomers and the mechanism of filament assembly
Proceedings of the National Academy of Sciences of the United States of America, 2008Co-Authors: Aurelie Bertin, Michael A Mcmurray, Patricia Grob, Sangshin Park, Galo Garcia, Insiyyah Patanwala, Tom Alber, Jeremy Thorner, Eva NogalesAbstract:Mitotic yeast cells express five septins (Cdc3, Cdc10, Cdc11, Cdc12, and Shs1/Sep7). Only Shs1 is nonessential. The four essential septins form a complex containing two copies of each, but their arrangement was not known. Single-particle analysis by EM confirmed that the heterooligomer is octameric and revealed that the subunits are arrayed in a linear rod. Identity of each subunit was determined by examining complexes lacking a given septin, by antibody decoration, and by fusion to marker proteins (GFP or maltose binding protein). The rod has the order Cdc11–Cdc12–Cdc3–Cdc10–Cdc10–Cdc3–Cdc12–Cdc11 and, hence, lacks polarity. At low ionic strength, rods assemble end-to-end to form filaments but not when Cdc11 is absent or its N terminus is altered. Filaments invariably pair into long parallel “Railroad Tracks.” Lateral association seems to be mediated by heterotetrameric coiled coils between the paired C-terminal extensions of Cdc3 and Cdc12 projecting orthogonally from each filament. Shs1 may be able to replace Cdc11 at the end of the rod. Our findings provide insights into the molecular mechanisms underlying the function and regulation of cellular septin structures.
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saccharomyces cerevisiae septins supramolecular organization of heterooligomers and the mechanism of filament assembly
Proceedings of the National Academy of Sciences of the United States of America, 2008Co-Authors: Aurelie Bertin, Michael A Mcmurray, Patricia Grob, Sangshin Park, Galo Garcia, Insiyyah Patanwala, Tom Alber, Jeremy Thorner, Holeung Ng, Eva NogalesAbstract:Mitotic yeast cells express five septins (Cdc3, Cdc10, Cdc11, Cdc12, and Shs1/Sep7). Only Shs1 is nonessential. The four essential septins form a complex containing two copies of each, but their arrangement was not known. Single-particle analysis by EM confirmed that the heterooligomer is octameric and revealed that the subunits are arrayed in a linear rod. Identity of each subunit was determined by examining complexes lacking a given septin, by antibody decoration, and by fusion to marker proteins (GFP or maltose binding protein). The rod has the order Cdc11–Cdc12–Cdc3–Cdc10–Cdc10–Cdc3–Cdc12–Cdc11 and, hence, lacks polarity. At low ionic strength, rods assemble end-to-end to form filaments but not when Cdc11 is absent or its N terminus is altered. Filaments invariably pair into long parallel “Railroad Tracks.” Lateral association seems to be mediated by heterotetrameric coiled coils between the paired C-terminal extensions of Cdc3 and Cdc12 projecting orthogonally from each filament. Shs1 may be able to replace Cdc11 at the end of the rod. Our findings provide insights into the molecular mechanisms underlying the function and regulation of cellular septin structures.
