Device for coupling a pump pump radiation in a fiber optic active amplifier, optical amplifier, optical amplification unit, optical transmission system, and.The process of coupling of a pump radiation in a fiber active adapted to amplify optical signals

摘要

Device for coupling a pump radiation at a pump fiber optical amplifier active amplifier, an optical unit for optical amplification, optical transmission system, and.The process of coupling of a pump radiation in a fiber active adapted to amplify optical signals.A device for attaching a pump pump radiation to a fiber optic active adapted to amplify the optical signals.It includes a first optical coupler (150) which engages a first fraction of radiation to optically pump (145) to the active fiber (130) and has an insertion loss of the optical signals below orEqual to 0.2 dB; and a second optical coupler (160), which is coupled optically to the first coupler (150) to receive the first coupler (150) a second fraction of the pump radiation.It is additionally coupled to the fiber optically active (130) for feeding to the active fiber (130) of at least part of the second fraction of the pump radiation and which has an efficiency of ACOPlamento for pump radiation from at least 70%.