Optical Network Link Budgets EE 548 Spring 2005. Reference Model.

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Presentation transcript:

Optical Network Link Budgets EE 548 Spring 2005

Reference Model

Link types

Link budget considerations Laser power Laser line width Link losses Bit rate Detector sensitivity

Impairments Connector and splice losses Fiber attenuation Polarization mode dispersion (PMD) Chromatic dispersion Filter losses Splitter losses Isolator losses

Short haul link

100 km, 8 wavelength WDM channels, 2.5 Gb/s

Long haul network case study

Long haul versus ultra long haul WDM systems Long haul (LH) Amplifier spacing: km Regenerator spacing: km Capacity: 80x10Gb/s Cost: $$ Ultra long haul (ULH) Amplifier spacing: km Regenerator spacing: km Capacity: 56x10Gb/s Cost: $$$

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