Optical module and method for manufacturing the same

An optical module for optically coupling a first optical waveguide constructed using a first film in which a core layer is coated with a clad layer and a second optical waveguide constructed using a second film in which a core layer is coated with a clad layer, comprising:

• an optical waveguide sheet having a first optical waveguide in which said first film is bonded to a base substrate with a metal layer interposed between said first film and said base substrate and in which an aperture portion is formed in a desired region of said first film where said core layer is exposed;
• an optical component having a second optical waveguide in which said core layer in said second film is formed in a parabolic shape and in which a thin film layer is formed so that said core layer in said second film is coated with said thin film layer;
• and
• wherein said optical component is placed in said aperture portion in said optical waveguide sheet wherein said core layer in said optical waveguide of said optical component is disposed so as to be opposite to said core layer in said first optical waveguide in said optical waveguide sheet with said thin film being interposed between said core layer in said first optical waveguide and said core layer in said second optical waveguide so that said first optical waveguide and said second optical waveguide are optically coupled to each other.

A method for manufacturing an optical module for optically coupling a first optical waveguide and a second optical waveguide, comprising:

• a first process of forming an optical waveguide sheet by bonding a first film in which a first face and a second face of a core layer made of an organic resin are coated respectively with a first clad layer and a second clad layer made of an organic resin to a base substrate with a metal layer being interposed between said first film and said base substrate;
• a second process of forming a first optical waveguide by performing abrasion processing using ultraviolet laser at a desired region of said first film in said optical waveguide sheet to form an aperture portion with said metal layer being exposed;
• and
• a third process of mounting an optical component having a second optical waveguide formed in a manner that a core layer in a second film has a parabolic shape in said aperture portion and placing an end face of a large diameter portion of said core layer having said parabolic shape in said optical component so as to be disposed opposite to an end face of said core layer in said first optical waveguide in said optical waveguide sheet.

A method for manufacturing an optical module for optically coupling a first optical waveguide and a second optical waveguide to each other, comprising:

• a first process of forming an optical waveguide sheet by bonding a first film in which a first face and a second face of a core layer made of an organic resin are coated respectively with a first clad layer and a second clad layer made of a glass material to a base substrate with a metal layer being interposed between said first film and said base substrate;
• a second process of forming a first optical waveguide by performing abrasion processing using ultraviolet laser at a desired region of said first film in said optical waveguide sheet to form an aperture portion with said second clad layer being exposed;
• and
• a third process of mounting an optical component having a second optical waveguide formed in a manner that a core layer in a second film has a parabolic shape in said aperture portion and placing an end face of a large diameter portion of said core layer having said parabolic shape in said optical component so as to be disposed opposite to an end face of said core layer in said first optical waveguide in said optical waveguide sheet.

A method for manufacturing an optical module for optically coupling a first optical waveguide and a second optical waveguide to each other, comprising:

• a first process of forming an optical waveguide sheet by bonding a first film in which a first face and a second face of a core layer made of a glass material are coated respectively with a first clad layer made of an organic resin and a second clad layer made of a glass material to a base substrate with a metal layer being interposed between said first film and said base substrate;
• a second process of forming a first optical waveguide by performing abrasion processing using ultraviolet laser at a desired region of said first film in said optical waveguide sheet to form an aperture portion with said core layer being exposed;
• and
• a third process of mounting an optical component having a second optical waveguide in which a core layer of said second film is formed so as to have a parabolic shape and a thin film layer formed so as to cover said core layer of said second optical waveguide in said aperture portion and placing said core layer of said second optical waveguide so as to be disposed opposite to said core layer in said first optical waveguide in said optical waveguide sheet.