Mb. Hoffman et Ja. Buck, ERBIUM RESONANCE-BASED DISPERSION EFFECTS ON SUBPICOSECOND PULSE-PROPAGATION IN FIBER AMPLIFIERS - ANALYTICAL STUDIES, Journal of the Optical Society of America. B, Optical physics, 13(9), 1996, pp. 2012-2016
Subpicosecond Gaussian pulse propagation in an erbium-doped fiber ampl
ifier is studied. An analytic expression for the pulse-broadening fact
or is obtained that includes the effects of gain, in addition to quadr
atic and cubic dispersion arising from the absorption and the emission
spectra. The analytic results are compared with those obtained from n
umerical studies that incorporate precise gain and index wavelength de
pendences, Good agreement is obtained within the 1.53-1.56-mu m wavele
ngth range for input pulses as short as 0.25 ps. (C) 1996 Optical Soci
ety of America.