Title :
Visible double-clad upconversion fibre laser
Author :
Zellmer, H. ; Plamann, K. ; Huber, Gunter ; Scheife, H. ; Tunnermann, Andreas
Author_Institution :
Laser Zentrum Hannover eV
fDate :
3/19/1998 12:00:00 AM
Abstract :
An ytterbium sensitised praseodymium-doped double-clad upconversion fibre laser pumped at 840 nm by a low brightness source is demonstrated. With a pump power of 3 W launched in the 25 μm pump core, a red output power of 440 mW at 635 nm is achieved
Keywords :
fibre lasers; optical frequency conversion; optical pumping; praseodymium; ytterbium; 3 W; 440 mW; 635 nm; 840 nm; double-clad fibre laser; low brightness source pump; upconversion fibre laser; visible laser;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980415
