SINGLE-BAND OPTICAL FIBER AMPLIFIER

摘要

The invention relates to a single-band optical fiber amplifier (10) comprising an amplifying fiber (4) and pumping means (3) in addition to reverberating means (20, 11) that send back amplified spontaneous emission noise to the amplifying fiber. The invention makes it possible to limit losses that are due to amplified spontaneous emission noise by sending said noise back towards the amplifying fiber in a direction of propagation which is opposite to the direction of propagation of the signal that is to be amplified.