In this study, the mutual coupling mechanism for circular bent bare slab optical fibers which are on the same plane is investigated. Radiation from circular bent bare slab optical fibers is from the core region to the outside. The mutually effected regions of each optical fiber by the other is examined. The coupling coefficients are analytically calculated using the Coupled Mode Theory and the Saddle Point Method in the radiation conditions. The conditions for the solution of the problem are presented.