Patent ID: 8107778
Filing Date: 2012-01-31
Classification: G02F

Abstract:
1. A method of producing a waveguide element comprising: forming a lower cladding layer having a refractive index n forming an active core layer on a surface of the lower cladding layer, the active core layer having a refractive index n forming a protective layer on a surface of the active core layer, the protective layer having a refractive index n forming a passive core layer on a surface of the protective layer, a refractive index of the passive core layer being changed by exposure to light, the passive core layer having a refractive index n exposing the passive core layer with a predetermined pattern to form an optical circuit having a refractive index n forming an upper cladding layer on a surface of the passive core layer in which the optical circuit is formed, the upper cladding layer having a refractive index n forming an upper electrode on a surface of the upper cladding layer, the upper electrode being used to apply an electric field to the active core layer; and performing a polarization orientation treatment after the upper electrode is formed, in which the active core layer is put into a softened or liquid state and cured while the electric field is applied.