Title :
35 dB optical gain at 2.716 mu m in erbium doped ZBLAN fibre pumped at 0.642 mu m
Author :
Ronarc´h, D. ; Guibert, M. ; Auzel, F. ; Mechenin, D. ; Poignant, Hubert
Author_Institution :
LAB/SMR/ESO, CNET, Lannion, France
fDate :
3/14/1991 12:00:00 AM
Abstract :
An optical gain of 35 dB at 2.716 mu m signal wavelength has been measured in an erbium doped ZBLAN fibre. A pump-wavelength scanning determined the pump wavelength for maximum gain. This pump wavelength was found to be 0.642 mu m. The maximum absorption wavelength for this Er3+ doped fibre is 0.649 mu m. It was deduced that the excited state absorption process improves the gain performance of such fibres at the signal wavelength considered.
Keywords :
erbium; fibre lasers; optical fibres; optical pumping; zirconium compounds; 0.642 to 0.649 micron; 2.716 micron; 35 dB; ZBLAN fibre; ZrF 4-BaF 2-LaF 3-AlF 3-NaF:Er 3+; excited state absorption process; gain performance; maximum absorption wavelength; monomode fibres; optical fibres; optical gain; pump-wavelength; signal wavelength;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910321
