Patent ID: 7574097

Claim:
An optical waveguide including a core layer, a lateral cladding layer located to laterally surround the core layer, a lower cladding layer located to underlie the core layer and the lateral cladding layer, and an upper cladding layer located to overlie the core layer and the lateral cladding layer; characterized in that said core layer and said lateral cladding layer are both formed from a polysilane composition comprising: a polysilane compound and a silicone compound in a ratio (polysilane compound:silicon compound) by weight of 80:20-5:95, said silicone compound containing 40-100% by weight of a double bond-containing silicone compound; and an organic peroxide in the amount of 1-30 parts by weight, based on 100 parts by weight of said polysilane compound and silicone compound.