100 Gb/s wavelength division multiplexing four‐level pulse amplitude modulated transmission over 160 km using advanced optical fibres

Downie, John D.; Hurley, Jason; Nagarajan, R.; Maj, T.; Dong, Hao; Makovejs, Sergejs

doi:10.1049/el.2018.0312

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G Pluggable 400zr Modules1

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“…Unlike coherent systems, inter DC PAM4 links need external DCM (dispersion compensation module) [52]. For PAM4 inter DC systems, already deployed with DCM's, the coherent signals can be overlaid in the same line system with little impact [53]. This may reduce the DSP power for CD compensation even further.…”

Section: G Pluggable 400zr Modulesmentioning

confidence: 99%

Low Power DSP-Based Transceivers for Data Center Optical Fiber Communications (Invited Tutorial)

Nagarajan

Lyubomirsky

Agazzi

2021

J. Lightwave Technol.

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In this tutorial, we discuss the evolution of the technology deployed for optical interconnects and the trade-offs in the design of low complexity, low power DSP and implementation for direct detect and coherent, pluggable optical modules for data center applications. The design trade-offs include the choice of modulation format, baud rate, optical link design, forward error correction, signal shaping and dispersion compensation.

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Section: G Pluggable 400zr Modulesmentioning

confidence: 99%