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Recently,theoretical and experimental nano-sized fundamental devices for optical circuits have been proposed at the single-photon level.The assembly of a realistic optical circuit is now a reality.In this work,we introduce a single-photon interconnector composed of two individual nanowires and an optical N-type four-level emitter that can tu the optical connection on and off optically.Because of dipole-induced transmission at the single-photon level,a single photon can travel between the two nanowires reciprocally,which guarantees its application as an all-optical interconnector.