Method of producing planar multimode optical waveguide using...

Optical waveguides – Having particular optical characteristic modifying chemical...

Reexamination Certificate

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C385S142000, C385S143000, C385S144000, C385S145000, C385S122000, C385S123000, C385S124000, C385S125000, C385S126000, C385S127000, C385S128000, C385S129000, C385S130000, C385S131000, C385S132000

Reexamination Certificate

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07729587

ABSTRACT:
Disclosed is a method of producing a planar multimode optical waveguide by direct photo-patterning and, more particularly, to an optical waveguide material and a method of producing the same. It is possible to control the refractive index of the optical waveguide, and the optical waveguide has a desirable refractive index distribution throughout different dielectric regions. In the method, it is unnecessary to conduct processes of forming a clad layer and of etching a core layer, thus a production process is simplified. The method comprises coating a photosensitive hybrid material having a refractive index or a volume changed by light radiation, in a thickness of 10 microns or more, and radiating light having a predetermined wavelength onto the coated photosensitive hybrid material to form the multimode optical waveguide due to a change in refractive index of a portion onto which light is radiated.

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patent: 10-0426959 (2004-04-01), None
Bae et al., “Direct Laser Writing of Self-Developed Waveguides in Benzyldimethylketal-doped Sol-gel Hybrid Glass.”J. Mater. Res., v.16:11, pp. 3184-3187, 2001.
Bae, Byeong-Soo et al., “Direct laser writing of self-developed waveguides in benzyldimethylketal-doped sol-gel hybrid glass”, Journal of Materials Research, 2001, pp. 3184-3187, vol. 16, No. 11, Materials Research Society.

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