ISSN:
1572-817X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
,
Physics
Notes:
Abstract Random variations of the index profile along the length of a multimode fibre are analysed by means of a Monte-Carlo technique, within the framework of the WKBJ approximation, assuming linear profile dispersion. Previous results (concerning fibres with deterministic profile variations) would suggest that very broad bandwidths could be obtained even in the presence of strong deviation from uniformity, with a suitable choice of the average profile. On the contrary, our analysis shows that similar results are obtained only under restrictive assumptions. In particular, if the random fluctuations are specified in terms of their r.m.s. deviation, then the probability of getting a broad bandwith is always significantly less than unity, no matter how accurate the choice of the average profile.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00619863
