METHOD AND SYSTEM FOR OPTICAL SIGNAL AMPLIFICATION

The present disclosure refers to a method for optical signal amplification, the method being implementable in a system which comprises: a transmission line (10) for transmitting optical signals between a first data processing device (11) and a second data processing device (12); and an optical amplifier (14) disposed at the transmission line (10), the optical amplifier (14) comprising an active fiber section (15) and a pumping device (16). The method comprises: determining a target operating gain of the optical amplifier (14); determining a target maximum gain of the optical amplifier (14); determining an active fiber section length such that the optical signals are amplified with at most the target maximum gain; determining a core cross-sectional area size of the active fiber section (15) based on a maximum allowable pulse shape distortion and a target maximum energy per pulse such that high-energy pulses with the target maximum energy per pulse are distorted by at most the maximum allowable pulse shape distortion; and determining an operating pumping power of the pumping device (16) below the maximum pumping power such that the optical signals are amplified with the target operating gain. Further, a system for optical signal amplification is disclosed.