Ultra-wide, 75 nm 3 dB gain-band optical amplifier utilising gain-flattened erbium-doped fluoride fibre amplifier and discrete Raman amplification

摘要

A 3 dB gain bandwidth of 75 nm (1531-1606 nm) is realised in a novel configuration of a two-stage erbium-doped fluoride fibre amplifier with a discrete fibre Raman amplifier. Error-free operation in an in-line amplifier configuration is also confirmed through a WDM (2.5 Gbit/s/spl times/9 channel) transmission experiment.