TAPERED COMBINER FOR LARGE CORE HIGH POWER FIBER LASERS

摘要

A method of forming a combiner for combining the output from two or more fibre laser sources is disclosed, comprising providing two or more input fibres, each having a pedestal; bundling the input fibres; strongly tapering the fibres such that the core diameter is less than the core diameter corresponding to the minimum mode-field diameter (MFD) value for the fibres and splicing the bundle of tapered fibres to an output fibre.