| abstract |
Provided are an optical waveguide and an optical waveguide structure that have excellent heat resistance, low water absorption, and low material cost. An optical waveguide structure is provided in contact with both surfaces of a core layer including a core portion and a clad portion having a refractive index lower than that of the core portion. Optical waveguide 90 having a clad layer 91, 92 having a lower refractive index than the portion 94, and conductor layers 901, 902 provided on both sides of the optical waveguide 90. The clad layers 91, 92 are made of norbornene polymer. Constructed as the main material. [Selection] Figure 1 |