Title :
Efficient high power operation of erbium 3 μm fibre laser diode-pumped at 975 nm
Author :
Jackson, S.D. ; King, T.A. ; Pollnau, M.
Author_Institution :
Dept. of Phys. & Astron., Manchester Univ., UK
fDate :
2/3/2000 12:00:00 AM
Abstract :
Efficient CW operation of a 2.71 μm Er,Pr:ZBLAN double-clad fibre laser pumped with a single diode laser operating at a wavelength of 975 nm is described. A maximum output power of 0.5 W and a slope efficiency of 25% (with respect to the launched pump power) were obtained. Threshold pump powers of <200 mW launched were measured and consistent relaxation oscillations in the output from the fibre laser indicate the presence of a saturable absorption mechanism
Keywords :
aluminium compounds; barium compounds; erbium; fibre lasers; lanthanum compounds; laser transitions; optical pumping; optical saturable absorption; praseodymium; sodium compounds; zirconium compounds; 0.5 W; 2.71 mum; 25 percent; 3 mum; 975 nm; Er fibre laser; Er,Pr:ZBLAN double-clad fibre laser; ZBLAN:Er,Pr; ZrF4-BaF2-LaF3-AlF3-NaF:Er,Pr; diode-pumped laser; fibre laser; high power operation; laser output; launched pump power; maximum output power; relaxation oscillations; saturable absorption mechanism; single diode laser; slope efficiency; threshold pump powers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000207
