Abstract
We present a powerful theoretical approach to calculate refractive index profiles for single-mode fibres with very high negative dispersion values in the third optical window in order to compensate for the positive chromatic dispersion of standard single-mode fibres in the 1550 nm region. The theoretical model developed can be used for nearly all reasonable refractive index profiles. We started with some special profiles which seem to be promising. The great advantage of our concept is the possibility to select suitable fibre parameters to obtain a defined compensation ratio and to find a good compromise between a high compensation ratio and the technological limits. In order to start the experimental verification, we manufactured three different fibre profiles which are presented here. The measurements of the chromatic dispersion were carried out with high accuracy with the aid of a Raman fibre laser. With a W-fibre we achieved a compensation ratio of 13, with a triple-clad profile 10.
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Schedule a callMore From: Pure and Applied Optics: Journal of the European Optical Society Part A
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