Title :
1.9 μm Tm-doped silica fibre laser pumped at 1.57 μm
Author :
Yamamoto, Takayuki ; Miyajima, Y. ; Komukai, Tetsuro
Author_Institution :
NTT Opt. Transmission Cable Syst. Lab., Ibaraki
fDate :
2/3/1994 12:00:00 AM
Abstract :
A 1.9 μm Tm-doped silica fibre laser pumped at 1.57 μm is described. The pump source is an Er-doped fibre laser pumped by a 0.98 μm Ti:sapphire laser. The threshold pump power is 95 mW and the slope efficiency is as high as 71%. A maximum output power of 21 mW was obtained at a launched pump power of 127 mW. The oscillation wavelength can be tuned from 1.84 to 1.90 μm by changing the length of the Tm-doped fibre
Keywords :
fibre lasers; laser transitions; laser tuning; optical pumping; thulium; 0.98 micron; 1.57 micron; 1.84 to 1.90 micron; 1.9 micron; 127 mW; 21 mW; 95 mW; Al2O3:Ti; Er-doped fibre laser; SiO2:Tm; Ti:sapphire laser; Tm-doped silica fibre laser; fibre length change; launched pump power; maximum output power; oscillation wavelength; pump source; slope efficiency; threshold pump power;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19940135
