Method and system for optical signal amplification

A method for optical signal amplification, the method being implementable in a system, the system comprising:

• a transmission line for transmitting optical signals between a first data processing device and a second data processing device;
• and
• an optical amplifier disposed at the transmission line, the optical amplifier comprising an active fiber section and a pumping device;
• the method comprising:
• determining a target operating gain of the optical amplifier;
• determining a target maximum gain of the optical amplifier;
• 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 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 below the maximum pumping power such that the optical signals are amplified with the target operating gain.