Title :
Quarter-watt output at 1.3 mu m from a praseodymium-doped fluoride fiber amplifier pumped with a diode-pumped Nd:YLF laser
Author :
Whitley, Tim ; Wyatt, Richard ; Szebesta, Daryl ; Davey, Steve ; Williams, John R.
fDate :
4/1/1993 12:00:00 AM
Abstract :
The characteristics of a praseodymium-doped fluoride fiber amplifier (PDFFA) pumped using a high-power diode-pumped Nd:YLF laser operating at 1.047 mu m are described. High small signal gains (29.5 dB) and the highest saturated output yet reported for PDFFAs (250 mW) have been achieved using this commercial diode-pumped source. The spectral characteristics have also been examined in both the large and small signal regimes. It is concluded that there is no significant penalty associated with pumping PDFFAs in the long wavelength wing of their pump band, even though this pump wavelength is almost 40 nm away from the peak of the absorption band.<>
Keywords :
aluminium compounds; barium compounds; fibre lasers; lanthanum compounds; lead compounds; optical pumping; optical saturation; praseodymium; sodium compounds; zirconium compounds; 0.25 W; 1.047 micron; 1.3 micron; 29.5 dB; IR; JkJkZrF4-BaF2-LaF3-AlF3-NaF-PbF2:Pr; LiYF/sub 4/:Nd; Pr-doped fluoride fibre amplifier; absorption band peak; diode-pumped Nd:YLF laser; high-power; laser pumping; pump band; pump wavelength; saturated output; small signal gains; spectral characteristics; Absorption; Diode lasers; Erbium-doped fiber lasers; Laser excitation; Optical fiber amplifiers; Power amplifiers; Power generation; Pump lasers; Semiconductor diodes; Semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
