Abstract: A connector for coupling a pair of single optical fibers is disclosed. Each contact of the connector utilizes three spheres of equal diameter defining a tricuspid interstitial space therebetween into which the end of a fiber is mounted. The spheres are embraced by a circular race. In the preferred embodiment, the spheres engage each other and the race. When a pair of contacts are mated in axial abutting relationship, the spheres in the mating contacts nest with respect to each other, thereby precisely laterally aligning the optical fibers which are mounted in the interstitial spaces of the sets of spheres in the two contacts. In another embodiment, the spheres are dimensioned so they do not engage each other, but engage the optical fiber at three points. Also, more than three spheres may be mounted in a contact for positioning a fiber therein.