%0 Journal Article %T Saturable absorption in multi-core fiber couplers %A Elham Nazemosadat %A Arash Mafi %J Physics %D 2013 %I arXiv %R 10.1364/JOSAB.30.002787 %X The saturable absorption characteristics of two-, three-, and five-core one-dimensional fiber coupler arrays and the seven-core hexagonal fiber coupler array are investigated. It is shown that the performance of all these saturable absorbers are comparable and not much is gained, if anything, by going from a two-core nonlinear coupler geometry to a higher number of cores. This observation is supported by the similarity of the saturable absorption curves, as well as comparable pulse characteristics obtained from the simulation of a generic mode-locked fiber laser cavity. %U http://arxiv.org/abs/1307.7338v1