| 简介 |
An apparatus includes a multi-core optical fiber and first, second, and third optical couplers. The multi-core optical fiber is rare-earth doped to provide optical amplification in response to optical pumping thereof. The first optical coupler is configured to end-couple a first multi-mode optical fiber to an end of the multi-core optical fiber. The second optical coupler is configured to end-couple a second multi-mode optical fiber to an end of the multi-core optical fiber. The third optical coupler is configured to optically couple a pump light source to the multi-core optical fiber. |
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