Title :
Praseodymium-doped fiber amplifiers: theory of 1.3 μm operation
Author_Institution :
BT Labs., Ipswich, UK
fDate :
10/1/1992 12:00:00 AM
Abstract :
A theoretical model of optical amplification in a praseodymium-doped fiber amplifier that is optically pumped at about 1 μm and amplifies signals at about 1.3 μm is presented. The variation of gain with respect to fiber length in both small-signal and saturated operation is reported, and the adverse influences of a lower-level bottleneck and a multiphonon cascade from the pump band are discussed
Keywords :
fibre lasers; laser theory; laser transitions; optical pumping; praseodymium; 1 micron; 1.3 micron; Pr doped fiber amplifiers; fiber length; gain; lower-level bottleneck; multiphonon cascade; optical amplification; pump band; saturated operation; small signal operation; theoretical model; Absorption; Doped fiber amplifiers; Energy states; Equations; Operational amplifiers; Optical fiber polarization; Optical fiber theory; Phonons; Signal design; Stationary state;
Journal_Title :
Quantum Electronics, IEEE Journal of
