Patent ID: 11960123
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 8:
9. A method comprising:
providing a first optical waveguide having a first light incidence/emission end face;
arranging a second optical waveguide having a second light incidence/emission end face to face the first light incidence/emission end face of the first optical waveguide;
disposing an optical element between the first light incidence/emission end face and the second light incidence/emission end face;
disposing a focus lens between the first light incidence/emission end face and the optical element or between the second light incidence/emission end face and the optical element, wherein the focus lens is disposed on an optical axis that connects the first light incidence/emission end face and the second light incidence/emission end face; and
filling a resin layer having a refractive index different than a refractive index of the focus lens between the first light incidence/emission end face and the optical element or between the second light incidence/emission end face and the optical element, wherein the focus lens is embedded in the resin layer.