Characterization and design of single-mode optical fibres

摘要

This paper deals with profile-independent characterization and design of single-mode optical fibres. Only two or three moments of the refractive-index profile are required rather than its exact form. Thus only a few parameters need be measured and simple formulae result for calculating microbending loss and dispersion in arbitrary fibres. These formulae are used to discuss various fibre design criteria. The use of preform data and the theoretical description of the preform-to-fibre process are considered. The method presented is compared with equivalent-step methods, which are briefly reviewed.