Optical waveguide and method for manufacturing the same
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsTsuguhiro Korenaga, Kunio Hibino
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Abstract
An optical waveguide includes a first cladding, a second cladding, and a core. The core is embedded in the first cladding so as to be exposed on one principal surface of the first cladding that is opposed to the second cladding. The first cladding and the second cladding are arranged so as to sandwich the core. The core is a product formed by a reaction in which a polymeric material that includes branched polysilane and polysiloxane is subjected to at least one process selected from heating and ultraviolet irradiation. The refractive index of the core is higher than the refractive indices of the first cladding and the second cladding.
Claims15
An optical waveguide comprising:
- a first cladding;
- a second cladding;
- and
- a core,
- wherein the core is embedded in the first cladding so as to be exposed on one principal surface of the first cladding that is opposed to the second cladding,
- the first cladding and the second cladding are arranged so as to sandwich the core,
- the core is a product formed by a reaction in which a polymeric material that comprises branched polysilane and polysiloxane is subjected to at least one process selected from heating and ultraviolet irradiation, and
- a refractive index of the core is higher than refractive indices of the first cladding and the second cladding.
A method for manufacturing an optical waveguide comprising:
- heating and softening a first cladding;
- forming a groove in the first cladding as a core by pressing a molding die onto the first cladding;
- filling the groove with a core material comprising a polymeric material that comprises branched polysilane and polysiloxane;
- heating the core material to cause a reaction that changes a refractive index of the core material;
- and
- bonding a second cladding to a surface of the first cladding that is provided with the groove.
Dependencies are inferred from the claim text.