Hybrid optical waveguide and manufacturing method thereof

Details Hybrid optical waveguide and manufacturing method thereof Hybrid optical waveguide and manufacturing method thereof

1998-08-26

2000-02-15

Ullah, Akm E.

Optical waveguides

Planar optical waveguide

G02B 610

Patent

active

060262095

ABSTRACT:
A hybrid optical waveguide having linear and curved sections through which optical signals pass, includes: a planar substrate layer; a lower cladding layer formed of a material having optical transparency in a predetermined range of optical communication wavelengths, on the planar substrate layer; a core layer formed on the lower cladding layer where the optical waveguide is formed, the waveguide constituted of the linear section formed of a first optical polymer having a higher refractive index than the lower cladding layer and the curved section formed of a second optical polymer having a higher refractive index than the first optical polymer; and an upper cladding layer formed of a material having a lower refractive index than the first and the second optical polymers, surrounding the waveguide core layer. The optical waveguide having the linear and curved sections has reduced traveling losses and optical fiber coupling losses, and minimizes the size of the waveguide cross-section.

REFERENCES:
patent: 5949944 (1999-09-01), Minford et al.
patent: 5949945 (1999-09-01), Okano et al.

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