Organic crystal compound optical waveguide and methods for its fabrication

摘要

An optical coupling device, or a compound waveguide, in which optical energy is coupled to or from an optical signal propagating along a transmitting waveguide is disclosed. The optical coupling device includes a thin film organic crystal waveguide positioned in optical proximity to a portion of the transmitting waveguide. The organic crystal waveguide has a first, coupling surface facing the transmitting waveguide through which the optical energy is coupled. The transmitting waveguide may be a fiber optic having at least some material removed along a side thereof to facilitate the coupling of optical energy between the fiber optic and the organic crystal waveguide. Polishing and lapping methods for producing the thin film organic crystal waveguide, with optically smooth surfaces, are also disclosed, as are organic salt implementations of the organic crystal.