Analysis of Transient Gain Saturation and Recovery in Erbium- Doped Fiber Amplifiers.
01 January 1989
An analysis of transient gain dynamics in erbium-doped fiber amplifiers is presented. It shows that, independently of the pump wavelength, gain stauration and recovery effects have long characteristic times (0.2-10ms) which advantageously reduces saturation-induced crosstalk in the amplifier. The effect of saturation-induced gain modulation is found to vanish at signal frequencies above F = 1 KHz, which is in good agreement with observed experimental results.