Rare earth element-doped optical fiber amplifier

Details Rare earth element-doped optical fiber amplifier Rare earth element-doped optical fiber amplifier

H - Electricity

04

B

H04B 10/17 (2006.01) H01S 3/067 (2006.01) H01S 3/094 (2006.01) H01S 3/16 (2006.01)

Patent

CA 2173662

17 An Er-doped multiple-core optical fiber amplifier has an Er-doped multiple-core optical fiber. A signal light of 1.5u m wavelength band is input through an optical isolator at front stage, and excitation lights of 0.98u m or 1.48 µm wavelength emitted from excitation light sources are injected through a WDM coupler at front stage and a WDM coupler at rear stage, respectively. An amplified signal light is output through optical isolator at rear stage. A length Lm of the Er-doped multiple-core optical fiber is set to obtain a substantially maximum saturated output power of the amplified signal light.

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