Planar optical waveguide assembly and method of preparing same

Details Planar optical waveguide assembly and method of preparing same Planar optical waveguide assembly and method of preparing same

2005-06-14

2005-06-14

Ullah, Akm Enayet (Department: 2874)

Optical waveguides

Planar optical waveguide

C385S130000, C065S386000

Reexamination Certificate

active

06907176

ABSTRACT:
A method of preparing a planar optical waveguide assembly, comprising the steps of: (i) applying a silicone composition to a surface of a substrate to form a silicone film; (ii) exposing at least one selected region of the silicone film to radiation having a wavelength of from 150 to 800 nm to produce a partially exposed film having at least one exposed region and at least one non-exposed region; (iii) removing the non-exposed region of the partially exposed film with a developing solvent to form a patterned film; and (iv) heating the patterned film for an amount of time sufficient to form at least one silicone core having a refractive index of from 1.3 to 1.7 at 23° C. for light having a wavelength of 589 nm; wherein the substrate has a refractive index less than the refractive index of the silicone core. A planar optical waveguide assembly prepared according to the method of the invention.

REFERENCES:
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