Answers are grounded in this paper and cite their sources.
Short pulses from mode-locked lasers (neodynium/yttrium-iron-garnet and krypton) were used to measure mode and material dispersion in 20 m of a multimode fibre at 1060, 647 and 568 nm. Uniform illumination of the cone of acceptance at the input caused a 200 ps pulse to broaden to 400 ps.
No takes yet. Share an insight, caveat, or question.
Gloge et al. (1972) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: