Title :
Observation of energy-distribution-dependent homogeneous upconversion in erbium-doped silica glass fibres
Author :
Bremberg, D. ; Helmfrid, S. ; Jaskorzynska, B. ; Swillo, M. ; Philipsen, J.L. ; Pálsdóttir, B.
Author_Institution :
Lab. of Photonics & Microwave Eng., R. Inst. of Technol., Kista, Sweden
fDate :
7/8/1999 12:00:00 AM
Abstract :
It has been demonstrated experimentally that the rate of homogeneous upconversion in erbium-doped fibres increases with increasing pump and signal power, even if the same degree of excitation is maintained. This is due to an increased redistribution of excitation energy among erbium ions by absorption and stimulated emission. A signal of 8.6 mW could more than double the upconversion rate in a densely doped fibre
Keywords :
erbium; fibre lasers; fluorescence; optical fibre testing; optical pumping; stimulated emission; 8.6 mW; densely doped fibre; energy-distribution-dependent homogeneous upconversion; erbium ions; erbium-doped silica glass fibres; excitation energy; increasing pump power; signal power; stimulated emission; upconversion rate;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990809
