Ultra-high capacity non-soliton optical transmission using optical phase conjugation

A method of optical signal transmission comprising the steps of:

• providing an optical fiber span and made up of at least one segment, each of said segments having a first portion and a second portion;
• providing an optical signal transmitter at one end of said optical fiber span for supplying an optical signal to said optical fiber span;
• providing an optical signal receiver at an opposite end cf said optical fiber span for receiving said optical signal from said optical fiber span;
• providing at least one in-line amplifier within each of said first and said second portions of said segment of said optical fiber span;
• phase conjugating said optical signal in an optical phase conjugator provided between said first and said second portions of said segment;
• and
• adjusting a power level of said optical signal in at least one of said portions of at least one of said segments of said fiber span to compensate for a nonlinearity of said fiber span.