Pump device for pumping an active fiber of an optical...

Details Pump device for pumping an active fiber of an optical... Pump device for pumping an active fiber of an optical...

H - Electricity

04

B

H04B 10/17 (2006.01) H01S 3/06 (2006.01) H01S 3/094 (2006.01) H01S 3/10 (2006.01)

Patent

CA 2282940

A pump device to couple a pump radiation to an active optical fiber adapted to amplify optical signals, includes a first optical coupler (150) that optically couples a first fraction of the pump radiation (145) to the active fiber (130) and has an insertion loss for the optical signals less than or equal to 0,2 dB; and a second optical coupler (160) that is optically coupled to the first coupler (150) to receive from the first coupler (150) a second fraction of the pump radiation, that is further optically coupled to the active fiber (130) for feeding to the active fiber (130) at least part of the second fraction of the pump radiation and that has a coupling efficiency for the pump radiation of at least 70%.

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