| 摘要 |
The present document relates to optical transmission systems. In particular, the present document relates to the amplification of various spatial modes of a multi-mode fiber using a common optical amplifier. An optical transmission system is described. The optical transmission system comprises a multi-mode fiber (104) carrying a plurality of spatial modes; a multi-mode amplifier (102) configured to jointly amplify the power of the plurality of spatial modes; and an optical spatial mode gain equalizer (203, 300) configured to attenuate the power of a first spatial mode of the plurality of spatial modes with respect to the power of a second spatial mode of the plurality of spatial modes. |
