Title :
Improved gain characteristics of high concentration erbium-doped phosphate fiber amplifier
Author :
Jiang, Chun ; Hu, Weisheng ; Zeng, Qingji
Author_Institution :
Sate Key Lab. of Adv. Opt. Commun. Syst. & Networks, Shanghai Jiao Tong Univ., China
fDate :
3/1/2004 12:00:00 AM
Abstract :
Both cooperative up-conversion and pair-induced concentration quenching of erbium-doped phosphate fiber with high doping concentration are considered for the first time in this letter. The dependence of the calculated gain on pump power is compared with measured data, and the results show that ion pair may exist in erbium-doped phosphate fiber with doping concentration of 3.8×1026 ion/m3. For several erbium-doped phosphate fibers with different lengths, improved gain may be obtained with higher doping concentration.
Keywords :
doping profiles; erbium; optical fibre amplifiers; optical wavelength conversion; radiation quenching; PO4:Er; cooperative up-conversion; erbium-doped phosphate fiber amplifier; gain; high concentration phosphate fiber amplifier; high doping concentration; improved gain characteristics; pair-induced concentration quenching; pump power; Doped fiber amplifiers; Doping; Erbium; Erbium-doped fiber amplifier; Gain measurement; Glass; Optical fiber amplifiers; Optical fiber communication; Power measurement; Semiconductor process modeling;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.823755
