Semiconductor optical waveguide

Details Semiconductor optical waveguide Semiconductor optical waveguide

1998-05-13

1999-06-29

Ullah, Akm E.

Optical waveguides

Planar optical waveguide

Thin film optical waveguide

427571, 257184, 438492, G02B 610

Patent

active

059179813

ABSTRACT:
A channel waveguide structure which can be incorporated into VLSI (very large scale integration) integrated circuits uses a SiGe (silicon germanium) alloy core and Si (silicon) top and bottom cladding layers. The core may consist of only a SiGe alloy layer or it may be formed as a superlattice containing Si layers alternating with SiGe alloy layers. LOCOS (locally oxidized silicon) regions are formed on the top cladding layer at spaced locations thereby defining lateral boundaries of channels in the core.

REFERENCES:
patent: 5199087 (1993-03-01), Frazier
patent: 5384282 (1995-01-01), Shiba et al.
patent: 5459081 (1995-10-01), Kajita
patent: 5621227 (1997-04-01), Joshi
patent: 5841931 (1998-11-01), Foresi et al.

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