title: Experimental and numerical evaluation of inter-core differential mode delay characteristic of weakly-coupled multi-core fiber.
abstract: We investigated the inter-core differential mode delay (DMD) characteristic of a weakly-coupled homogeneous multi-core fiber with a view to utilizing inter-core crosstalk compensation with MIMO processing. We confirmed experimentally that the bend induced inter-core DMD is lower than the simulated results, which we expected owing to the twist of the fiber. We also revealed numerically that the refractive index profile variation of each core greatly increases inter-core DMD. Finally, we conducted a 4 × 4 MIMO transmission experiment using a weakly-coupled 4-core fiber and successfully compensated for the inter-core crosstalk.
authors.forename: Taiji
authors.initials: T
authors.lastname: Sakamoto
authors.forename: Takayoshi
authors.initials: T
authors.lastname: Mori
authors.forename: Masaki
authors.initials: M
authors.lastname: Wada
authors.forename: Takashi
authors.initials: T
authors.lastname: Yamamoto
authors.forename: Takashi
authors.initials: T
authors.lastname: Matsui
authors.forename: Kazuhide
authors.initials: K
authors.lastname: Nakajima
authors.forename: Fumihiko
authors.initials: F
authors.lastname: Yamamoto
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis / Q000379:methods*; D008027:Light; D008962:Models, Theoretical; D055100:Optical Fibers; D012542:Scattering, Radiation; D020349:Surface Plasmon Resonance / Q000295:instrumentation*