Abstract: Disclosed are devices and methods for switching transmission of light from one optical fiber to another. A steerable fiber has an end in a capsule, as do one or more cooperating fibers. Initially the steerable fiber is at a rest position, from where it couples light into one of the cooperating fibers. The end of the steerable fiber includes an armature that moves in response to applied magnetic fields. Then a magnetic field is generated selectively, and a pair of pole pieces transfers it to a location inside the capsule, which is close to the armature. Thus the end of the steerable fiber is moved to another position, from where it couples light into the other cooperating fiber.