ifos • paper_1 • waves_oscillations
[UPSC IFoS 2025] Polarisation and Modern Optics (Q320, 10+5=15M)
What do you understand by pulse dispersion in multimode optical fibres? Deduce an expression for intermodal pulse dispersion in a step-index fibre. Also compare the pulse dispersions of the step-index fibres with the parabolic-index fibres.
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