Directional optical waveguide couplers

Details Directional optical waveguide couplers Directional optical waveguide couplers

G - Physics

02

B

88/97.5

G02B 6/42 (2006.01) G02B 6/28 (2006.01)

Patent

CA 1062058

DIRECTIONAL OPTICAL WAVEGUIDE COUPLERS Abstract of the Disclosure Directional optical waveguide couplers for use with planar-form optical waveguides or optical fiber waveguides are disclosed. In the coupler arrangements, light energy propagating in a direction of interest in the core of a cladded optical waveguide is first coupled into a selected region of the cladding by a mode coupling means and then coupled out of the selected cladding region by a branching optical waveguide or power tap for subsequent conversion to a representative electrical signal. The selected region of the cladding is isolated from spurious cladding modes by a pair of stripper-absorber means to ensure that the coupled out light energy is derived only from the core- guided modes propagating in the direction of interest.

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