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40G Field Trial with 0.8 bits/s/Hz Spectral Efficiency over 6,550 km of Installed Undersea Cable
Undersea Cable Field Trial Spectral Efficiency
2011/5/18
We successfully demonstrated 64x40Gb/s transmission over 6,550km installed undersea cable using SubCom’s 40G transceivers. More than 3.3dB FEC margin for all measured channels was achieved matching ou...
The Capabilities of the Undersea Telecommunications Industry
The Capabilities Undersea Telecommunications Industry
2010/6/9
Undersea transoceanic telecommunications cables are routinely installed with multiple terra-bit capacity. In this presentation I will give an overview of these state-of-the-art systems,discuss key tec...
Faults and Recovery Methods in Regional Undersea OADM Networks
Faults and Recovery Methods Regional Undersea OADM Networks
2009/7/17
An experimental study of faults in an important class of undersea OADM networks demonstrates that channel performance through surviving segments can be recovered by the terminal-based procedures enabl...
Modulation Formats for Ultra Long-Haul Undersea Transmission
Modulation Formats Ultra Long-Haul Undersea Transmission
2009/7/16
This paper reviews recent technology advances in modulation formats including RZ-DQPSK, PDM RZ-DPSK, and offset PDM RZ-DPSK for 40G undersea transmission. Research activities on 100G long-haul transmi...
Review of 20 years of undersea optical fiber transmission system development and deployment since TAT-8
undersea optical fiber transmission system development
2008/7/30
TAT-8 was the first optical transatlantic undersea system, starting a dramatic expansion of the global telecommunications network. This paper reviews the drivers and products that emerged since TAT-8 ...