Title :
High-efficiency CW thulium-sensitised holmium-doped fluoride fibre laser operating at 2.04 mu m
Author :
Monerie, M. ; Poignant, Hubert
Abstract :
Laser oscillation at 2.04 mu m has been observed in a thulium-sensitised holmium doped singlemode fluorozirconate fibre. 52% slope efficiency and 250 mW output power were obtained with a pump at 0.82 mu m. Cross relaxation in thulium gives a pump quantum efficiency of 1.30.
Keywords :
aluminium compounds; barium compounds; fibre lasers; holmium; lanthanum compounds; sodium compounds; thulium; zirconium compounds; 0.82 micron; 130 percent; 2.04 micron; 250 mW; 52 percent; ZrF 4-BaF 2-LaF 3-AlF 3-NaF:Tm, Ho; cross relaxation; output power; pump quantum efficiency; single-mode fibre; slope efficiency;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910951
