Which mechanism increases signal clarity when transmitting polarized light through birefringent fiber?

💡 Explanation

Polarization-maintaining fiber utilizes stress-induced birefringence, a form of form birefringence; this confines light to one polarization mode due to differential refractive indices, thus this mode propagates without polarization mode dispersion because it actively reduces cross coupling, therefore this ensures signal clarity, rather than alternatives like scattering which degrade clarity.

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