Control del periodo espectral de interferencias en tapers de fibras monomodo

Abstract

A really simple study of the theoretical aspect of the filters based on non adiabatic tapers in single-mode fibers is presented. It concludes on the possibility to vary the period of the spectral interferences through the variation of the taper diameter. The taper diameter is varied thanks to the stretching of the fiber while it is heated with a movable oxy-butane flame. Some measurements had been done on different tapers built with the same fabrication parameters in order to make the characteristic curve of the period evolution during the fabrication. Then this characteristic is used in order to make tapers with an expected spectral period.