Method for fabricating an optical waveguide evanescent wave coupler having an interleaved film
January 19, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3408131 Distributive tee coupler Optical fiber having reduced dispersion Fiber optics access coupler Optical amplitude modulation modulator Branching arrangement for communication transmission links having optical glass fibers Optical waveguide power divider Variable ratio optical junction device Apparatus for generating light pulse train Optical fiber data transmission system Patent #: 4182935 InventorAssigneeApplicationNo. 06/225893 filed on 01/19/1981US Classes:385/30, Evanescent wave coupling356/73.1, FOR OPTICAL FIBER OR WAVEGUIDE INSPECTION385/12OPTICAL WAVEGUIDE SENSORExaminersPrimary: Gensler, PaulAttorney, Agent or FirmInternational ClassesG02B 6/28 (20060101)G02B 6/34 (20060101) AbstractA method and an apparatus is disclosed for making an evanescent wave coupler. Two optical waveguides have a portion of the cladding material removed until the core is exposed. The two optical waveguides are placed in juxtaposition with an interleaf film between them. The interleaf film insures an accurate and constant spatial relation between the two optical waveguides to have reliable evanescent coupling therebetween.Other References
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