High efficacy waveguide coupler

Optical waveguides – With optical coupler

Reexamination Certificate

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Details

C385S039000, C385S050000

Reexamination Certificate

active

07570846

ABSTRACT:
An optical coupling apparatus for coupling a waveguide to a light source, when the light source emits light at a divergence angle that is larger than the critical angle of the waveguide. The optical coupler comprises a plurality of light-guides, preferably cut from the edge of the waveguide. The light-guides are arranged to connect the waveguide to the light source via a plurality of orientations so that the entire divergence angle is covered within the critical angle of the light-guides.

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