Patent ID: 9709729
Date: 2017-07-18
CPC Classifications: G02B

Claim:
1. A multicore fiber comprising: a first core that propagates light of up to an x-th order LP mode (here, x is an integer of “2” or more); and a second core that propagates light of up to a y-th order LP mode (here, y is an integer of “1” or more), wherein a different-mode interaction section in which a propagation constant of light of an x wherein the multicore fiber further comprising: a third core that propagates light of up to a z-th order LP mode (here, z is an integer of “1” or more) and is arranged at a position different from a position of the second core by a predetermined angle using the center of the first core as a reference, wherein, in the different-mode interaction section, the propagation constant of the light of the x in the different-mode non-interaction section, a propagation constant of light of each LP mode of the first core and a propagation constant of light of each LP mode of the third core do not coincide with each other, and the light of the x