Which phenomenon limits data transmission rate in optical fiber when signal wavelength approaches zero-dispersion wavelength?

💡 Explanation

When nearing the zero-dispersion wavelength, phase matching conditions are met, and four-wave mixing can occur because third-order nonlinearity in silica generates new frequencies that interfere, thus creating signal distortion that limits transmission rate. Therefore four-wave mixing becomes dominant, rather than other options which require different constraints.

• Which outcome occurs when a stable isotope absorbs radiative energy?
• Which risk increases when an orbiting GPS satellite's clock drifts?
• Which mechanism limits the reduction of semiconductor transistor gate oxide thickness, affecting circuit scaling?
• Which outcome occurs when annealing a metal containing a high density of dislocations?
• Which consequence results when optical feedback destabilizes a femtosecond laser cavity?
• Which mechanism causes photon redshift when exiting a black hole's gravity well?