Optical alignment of optical waveguides

Details Optical alignment of optical waveguides Optical alignment of optical waveguides

2006-06-20

2006-06-20

Doan, Jennifer (Department: 2874)

Optical waveguides

With optical coupler

Particular coupling structure

C385S015000, C385S039000

Reexamination Certificate

active

07065277

ABSTRACT:
The optical waveguide device comprises two optical waveguides and an optical coupler extending between the adjacent ends of the waveguides. The optical coupler comprises material that includes a waveguide region. The waveguide region has a shape defined by overlapping cones of light emitted from the ends of the optical waveguides. In the optical alignment method, first and second optical waveguides are axially aligned, leaving a gap between their adjacent ends. The gap is filled with material having a refractive index capable of being increased by exposing the material to light. The material is exposed to conical beams of light emitted from the adjacent ends of the waveguides. Exposing the material increases the refractive index of the material in a region in which the beams of light overlap. The resulting refractive index difference prevents light from diverging as it propagating across the gap between adjacent ends of the optical waveguides.

REFERENCES:
patent: 3900245 (1975-08-01), Dyott et al.
patent: 5854868 (1998-12-01), Yoshimura et al.
patent: 2003/0223692 (2003-12-01), Ikarashi et al.

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