System and method for wide band raman amplification

H - Electricity – 01 – S

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H01S 3/30 (2006.01) H04B 10/12 (2006.01) H04B 10/17 (2006.01)

Patent

CA 2439084

A multi-stage Raman amplifier (100) includes a first Raman amplifier stage (120) having a first sloped gain profile (30) operable to amplify a plurality of signal wavelengths (116), and a second Raman amplifier stage (121) having a second sloped gain profile (40) operable to amplify at least most of the plurality of signal wavelengths after those wavelengths have been amplified by the first stage. The second sloped gain profile is approximately complementary slope to the slope of the first sloped gain profile. The combined effect of the first and second Raman stages contributes to an approximately flat overall gain profile (50) over the plurality of signal wavelengths.

L'invention concerne un amplificateur Raman à plusieurs étages, qui comprend un premier étage d'amplificateur Raman possédant un premier profil de gain incliné pouvant amplifier une pluralité de longueurs d'ondes de signal, et un second étage d'amplificateur Raman possédant un second profil de gain incliné pouvant amplifier au moins la plupart de la pluralité de longueurs d'ondes de signal après que ces longueurs d'ondes ont été amplifiées par le premier étage. Ce second profil de gain incliné constitue approximativement la pente complémentaire de la pente du premier profil de gain incliné. L'effet combiné des premier et second étages Raman contribuent à obtenir un profil de gain global approximativement plat pour la pluralité de longueurs d'ondes de signal.

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