Title :
Gamma-ray induced pulsewidth broadening and power loss in modelocked Er-doped fibre laser
Author :
Bussjager, R.J. ; Hayduk, M.J. ; Johns, S.T. ; Taylor, E.W.
Author_Institution :
Sensors Directorate, Air Force Res. Lab., Rome, NY, USA
fDate :
10/25/2001 12:00:00 AM
Abstract :
A modelocked erbium-doped fibre laser (EDFL) exhibited a 9.7% decrease in its pump laser output power and pulsewidth broadening from 9.2 to 300 ps following a 10.14 kGy(Si) gamma-ray irradiation. A decrease in the EDFL intra-cavity power from the combined effects of the pump laser degradation, and colour centre induced absorption in the fibre segments and other EDFL components was responsible for the broadening and long recovery times required for restoration of modelocking
Keywords :
Q-switching; colour centres; erbium; fibre lasers; gamma-ray effects; laser mode locking; optical pumping; 10.14 kGy; 9.2 to 300 ps; EDFL components; EDFL intra-cavity power; Er-doped fibre laser; colour centre induced absorption; fibre segments; gamma-ray induced power loss; gamma-ray induced pulsewidth broadening; gamma-ray irradiation; modelocked fibre laser; pump laser degradation; pump laser output power; recovery times;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010904
