| 摘要 |
Provided is a multi-core fiber 1 for performing communications using light of up to an x-th order LP mode (x being an integer equal to or greater than 1) in a communication band, the multi-core fiber 1 being provided with a plurality of signal light propagation cores 11 for propagating light up to an (x + 1)-th order LP mode, and at least one high-loss core 15 that has higher loss of propagated light than the signal light propagation cores 11. Cross-talk occurs between the light of the (x + 1)-th order LP mode propagating through at least one of the signal light propagation cores 11 and the light of the primary LP mode propagating through at least one of the high-loss cores 15. |
