title: Crosstalk in multicore fibers with randomness: gradual drift vs. short-length variations.
abstract: Random perturbations play an important role in the crosstalk of multicore fibers, and can be captured by statistical coupled-mode calculations. In this approach, phase matching contributes a multiplicative factor to the average crosstalk, depending on the perturbation statistics and any intentional heterogeneity of neighboring cores. The impact of perturbations is shown to be qualitatively different depending on whether they are gradually varying, or have short-length (centimeter-scale) variations. This insight implies a novel crosstalk suppression strategy: fast modulation of a bend perturbation by spinning the fiber can disrupt the bend-induced phase matching.
authors.affiliation: OFS Laboratories, Somerset, NJ 08873, USA. fini@ofsoptics.com
authors.forename: John M
authors.initials: JM
authors.lastname: Fini
authors.forename: Benyuan
authors.initials: B
authors.lastname: Zhu
authors.forename: Thierry F
authors.initials: TF
authors.lastname: Taunay
authors.forename: Man F
authors.initials: MF
authors.lastname: Yan
authors.forename: Kazi S
authors.initials: KS
authors.lastname: Abedin
mesh_terms: D005336:Fiber Optic Technology / Q000295:instrumentation* / Q000379:methods*; D008962:Models, Theoretical; D055100:Optical Fibers; D013223:Statistics as Topic