An elevator with an all optical control apparatus having a control unit
with a light source, a photodetector, an optical feeding fiber, and an
optical feedback fiber. The light source is coupled to the optical
feeding fiber and the optical feedback fiber is coupled to the
photodetector. The all optical control apparatus further includes a
member that can be manually actuated. The member has a fiber input and a
fiber output. The fiber input is optically coupled to the optical feeding
fiber and the fiber output is optically coupled to the optical feedback
fiber. The member, when actuated, influences a light path between the
fiber input and the fiber output in a manner that is detectable at the
photodetector.