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Pulse dispersion in glass fibres

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Abstract

Measurements indicate that pulses incident normally on the end of a cladded multimode fibre are broadened by less than 0.1 ns over a length of 20 m. The measured dispersions in lengths of 20 m and 35 m do not exceed 5 ps/m. However, with an angle of incidence of 17°, or with a defocused input beam, the pulses are broadened by 0.6 ns.

References

    1. 1)
      • D. Williams , K.C. Kao . Pulse communication along glass fibres. Proc. IEEE , 197 - 198
    2. 2)
      • W.A. Gambling , P.J.R. Laybourn , M.D. Lee . Pulse propagation along glass fibres. Electron Lett. , 364 - 365
    3. 3)
      • H.J. Heyke . (1970) Optical pulse transmission in cladded fibres with imperfections, Trunk telecommunication by guided waves.
    4. 4)
      • Gloge, D., Tynes, A.R., Duguay, M.A., Hansen, W.J.: `Light pulse distortion in dispersive glass fibres measured with a picosecond gate', Paper 8.6, Presented at Conference on laser engineering and applications, June 1971, Washington, DC, USA.

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