High power all-in-fibre continuous wave Raman laser based on phosphosilicate fibre

Abstract

We present a high power all-in-fibre Raman laser delivering 20.6 W at 1270 nm with an efficiency of 70%. This laser can be used for medical applications like photodynamic therapy of cancer. To our knowledge, this is the highest power ever reported in literature for a Raman laser based on phosphosilicate fibre.