Ridge and mesa optical waveguides

Details Ridge and mesa optical waveguides Ridge and mesa optical waveguides

2006-03-31

2008-11-18

Font, Frank G (Department: 2883)

Optical waveguides

Planar optical waveguide

Thin film optical waveguide

C385S129000, C385S130000, C385S141000, C385S142000

Reexamination Certificate

active

07454112

ABSTRACT:
Apparatus including: a substrate layer having a substantially planar top surface; an optically conductive peak located and elongated on, and spanning a first thickness measured in a direction generally away from, the top surface; the optically conductive peak having first and second lateral walls each including distal and proximal lateral wall portions, the proximal lateral wall portions intersecting the top surface; and first and second sidewall layers located on the distal lateral wall portions, the sidewall layers not intersecting the top surface and spanning a second thickness that is less than the first thickness measured in the same direction.

REFERENCES:
patent: 6487354 (2002-11-01), Ferm et al.
patent: 2005/0068887 (2005-03-01), Chen et al.
patent: 2005/0135765 (2005-06-01), Nakata et al.

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