Title :
Performance of high-concentration Er/sup 3+/-Yb/sup 3+/-codoped phosphate fiber amplifiers
Author :
Hu, Yongdan ; Jiang, Shibin ; Luo, Tao ; Seneschal, Karine ; Morrell, Mike ; Smektala, Frédéric ; Honkanen, Seppo ; Lucas, Jacques ; Peyghambarian, N.
Author_Institution :
Opt. Sci. Center, Arizona Univ., Tucson, AZ, USA
fDate :
7/1/2001 12:00:00 AM
Abstract :
Performance of high-concentration Er/sup 3+/-Yb/sup 3+/-codoped phosphate fiber amplifiers in a copumping configuration is presented. Gain, noise figure, and output signal saturation power of fiber amplifiers with different lengths are reported. From a 3.6-cm-long fiber, 18-dB internal gain, i.e., 5 dB/cm, for small signal input at 1535 nm, was achieved. To the best of our knowledge, this is the highest gain per unit length for erbium-doped fiber amplifiers ever reported.
Keywords :
erbium; optical fibre amplifiers; optical pumping; optical saturation; ytterbium; 1535 nm; 18 dB; 3.6 cm; P/sub 2/O/sub 5/:Er,Yb; copumping configuration; erbium-doped fiber amplifiers; gain; high-concentration Er/sup 3+/-Yb/sup 3+/-codoped phosphate fiber amplifiers; internal gain; noise figure; output signal saturation power; performance; small signal input; Absorption; Doped fiber amplifiers; Energy exchange; Erbium; Erbium-doped fiber amplifier; Glass; Noise figure; Optical fiber amplifiers; Optical fibers; Power measurement;
Journal_Title :
Photonics Technology Letters, IEEE
