Optical collimator for monomode fiber having a graded-index fiber section, corresponding monomode fiber with extended core and method for making same

摘要

The invention relates to an optical collimator for monomode fiber, comprising at least a portion of the fiber to expansion, and at least one piece of polarization-maintaining fiber of expansion, comprising at least a first portion of multimode fiber with a gradient of indice.l' invention also relates to a monomode fiber having at its end, such an optical collimator, as well as the corresponding method of manufacture.