Optical Communications Technology and Modulation Formats 16 ...
Optical Communications Technology and Modulation Formats 16 ...
Optical Communications Technology and Modulation Formats 16 ...
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Conclusions <strong>and</strong> Summary• PM-QPSK• High cost, very complex, optically <strong>and</strong> electronically• Advantages in niche applications at 40Gbps• Very poor fiber <strong>and</strong> excessive cascading of narrow filters• Unnecessary cost for vast majority of applications• Performance• Limited to low launch powers, incurs penalty on long or high loss spans• Difficulty with adjacent channel 10G• Great spectral efficiency• Applications• Leading contender at 100Gbps where investment in optics <strong>and</strong> electronics can bejustified.StrataLight proprietary <strong>and</strong> confidential information
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