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What are the advantages of Coherent Optical Transmission System?

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  • High Chromatic Dispersion (CD) Robustness
  • Can avoid Dispersion Compensation Units (DCUs)
  • No need to have precise Fiber Characterization
  • Simpler Network Design
  • Latency improvement due to no DCUs
  • High Polarization Mode Dispersion (PMD) Robustness
  • High Bit Rate Wavelengths deployable on all Fiber types
  • No need for “fancy”PMD Compensator devices
  • No need to have precise Fiber Characterization
  • Low Optical Signal-to-Noise Ratio (OSNR) Needed
  • More capacity at greater distances w/o OEO Regeneration
  • Possibility to launch lower per-channel Power
  • Higher tolerance to Channels Interferences

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