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Optical Networks ppt - Printable Version +- Free Academic Seminars And Projects Reports (https://easyreport.in) +-- Forum: Seminars Topics And Discussions (https://easyreport.in/forumdisplay.php?fid=30) +--- Forum: Miscellaneous Seminars Topics (https://easyreport.in/forumdisplay.php?fid=21) +---- Forum: General Seminar Topics (https://easyreport.in/forumdisplay.php?fid=58) +---- Thread: Optical Networks ppt (/showthread.php?tid=52144) |
Optical Networks ppt - kingofring_131@ - 10-04-2017 Optical Networks [attachment=382] Medium Characteristics Attenuation: Wavelength dependent 0.85, 1.3, 1.55 micron windows Attenuation caused by impurities as well as scattering Dispersion Inter-modal Chromatic Wavelength Division Multiplexing (WDM) All the bandwidth could not be used due to the electronic bottleneck Two breakthroughs WDM Erbium-doped fiber amplifier (EDFA) WDM vs. FDM WDM is passive and hence reliable WDM carrier frequency orders of magnitude higher DWDM Evolution Faster (higher speed per wave), 40 Gb/s on the horizon Thicker (more waves), 160 waves possible today Longer (link lengths before regeneration) A few thousand km possible today 160 waves at 10 Gb/s = 1.6 Tb/s 25 million simultaneous phone calls 5 million books per minute How Did We Get Here? SONET over WDM Conventional WDM deployment is using SONET as standard interface to higher layers IP over ATM IP packets need to be mapped into ATM cells before transporting over WDM using SONET frame OEO conversions at every node is easier to build than all optical switch Wavelength Routed An OXC is placed at each node End users communicate with one another through lightpaths, which may contain several fiber links and wavelengths Two lightpaths are not allowed to have the same wavelength on the same link. Optical Networks ppt - hemant87 - 10-04-2017 to get information about the topic "optical networks " full report ppt and related topic refer the page link bellow http://seminarsprojects.net/Thread-optical-networks http://seminarsprojects.net/Thread-optical-networks-ppt http://seminarsprojects.net/Thread-optical-networks-wdm-and-dwdm-technology-in-optical-networks http://seminarsprojects.net/Thread-pon-passive-optical-networks-technologies-full-report |