Patent ID: 9195000
Filing Date: 2015-11-24
Classification: G02B

Abstract:
1. A multicore optical fiber, comprising: two or more core regions disposed within a common cladding region, wherein each of the core regions is configured to guide a respective light transmission comprising at least one optical mode along the length of the fiber, wherein the cores are arranged within the common cladding region according to a core configuration that prevents crosstalk between modes of neighboring cores in the fiber in a deployment of the fiber in which cross-coupling between neighboring cores is affected by a perturbations arising in the deployed fiber, wherein the cross talk <|dU| 2 > accumulates per unit length L, substantially in accordance with a relationship: wherein λ is the wavelength, C is the coupling coefficient, Δβ is the length-average mismatch between the propagation constants of the modes of neighboring cores, and S