Which phenomenon limits maximum data transmission rate approaching theoretical Shannon limit in fiber optic cables?

💡 Explanation

When transmitting signals close the Shannon limit bandwidth, chromatic dispersion occurs because slightly different wavelengths travel at different speeds broadening pulses, and leading to inter-symbol interference. Therefore chromatic dispersion ultimately limits the rate, more than fatigue, diameter, or connector oxidation at intended operating conditions, which demand different preconditions.

• In laser-based optical coherence tomography (OCT), which disadvantage arises with increased source bandwidth?
• Within a silicon-germanium alloy transistor, which effect results when the Ge concentration varies, causing dissimilar energy levels?
• Which effect arises when incoherent beams overlap unevenly?
• Which outcome occurs in a Haber-Bosch process when ammonia production reaches equilibrium at constant volume?
• Which effect diminishes contrast when imaging through fog?
• Which mechanism causes increased time dilation near massive neutron stars?