Optical module

An optical module comprising:

• a substrate having first and second regions and first and second optical waveguides, said first and second regions being arranged along a predetermined plane, and said first and second optical waveguide being provided in said first region, and said first and second optical waveguides extending in a direction of a predetermined axis;
• a semiconductor light emitting device including a semiconductor light emitting element, said semiconductor light emitting device being provided in the second region, and said semiconductor light emitting element being optically coupled to said second optical waveguide;
• a semiconductor light receiving device including a light receiving element, said semiconductor light receiving device being provided in said first region;
• and
• an optical device including an optical element, said optical element being provided on said first region so as to reflect a part of incident light from said light emitting element to said light receiving element and so as to transmit a part of said incident light;
• wherein said optical element is provided between said first and second optical waveguides
• wherein said optical element is optically coupled to said first and second optical waveguides,
• wherein said optical device has a transparent substrate and a dielectric multilayer film,
• wherein light from said semiconductor light emitting element can pass through said transparent substrate, and
• wherein said transparent substrate is inclined so as to reflect a part of incident light from said light emitting element to said light receiving element, and wherein said dielectric multilayer film is provided on said inclined surface of said transparent substrate.

An optical module comprising:

• a substrate having first and second regions arranged along a predetermined plane;
• a first optical fiber provided in said first region of said substrate, said first optical fiber extending in a direction of a predetermined axis;
• a second optical fiber provided in said first region of said substrate, said second optical fiber extending in said direction of said predetermined axis;
• a semiconductor light emitting device provided in the second region, said semiconductor light emitting device including a semiconductor light emitting element, and said semiconductor light emitting element being optically coupled to said second optical fiber;
• a semiconductor driving element electrically connected to said semiconductor light emitting element;
• an optical device including an optical element, said optical element being provided in said first region so as to reflect a part of incident light and so as to transmit a part of said incident light,
• a semiconductor light receiving device including a light receiving element, said light receiving element being provided in said first region, and said light receiving element being optically coupled to said optical element,
• wherein said optical element is provided between said first optical fiber and said second optical fiber,
• wherein said optical element is optically coupled to said first optical fiber and said second optical fiber,
• wherein said optical device has a transparent substrate,
• wherein light from said semiconductor light emitting element can pass through said transparent substrate,
• wherein said transparent substrate has a pair of surfaces, each extending along a reference plane intersecting with said predetermined axis, and
• wherein one of said pair of surfaces is inclined so as to reflect a part of incident light from said light emitting element to said light receiving element.

An optical module comprising:

• a substrate having first and second regions arranged along a predetermined plane;
• a first optical fiber provided in said first region of said substrate, said first optical fiber extending in a direction of a predetermined axis;
• a second optical fiber provided in said first region of said substrate, said second optical fiber extending in said direction of said predetermined axis;
• a semiconductor light emitting device provided in the second region, said semiconductor light emitting device including a semiconductor light emitting element, and said semiconductor light emitting element being optically coupled to said second optical fiber;
• a semiconductor driving element electrically connected to said semiconductor light emitting element;
• an optical device including an optical element, said optical element being provided in said first region so as to reflect a part of incident light and so as to transmit a part of said incident light,
• a semiconductor light receiving device including a light receiving element, said light receiving element being provided in said first region, and said light receiving element being optically coupled to said optical element,
• wherein said optical element is provided between said first optical fiber and said second optical fiber,
• wherein said optical element is optically coupled to said first optical fiber and said second optical fiber,
• wherein said optical device has a transparent substrate and a dielectric multilayer film,
• wherein light from said semiconductor light emitting element can pass through said transparent substrate,
• wherein one of said pair of surfaces is inclined so as to reflect a part of incident light from said light emitting element to said light receiving element, and
• wherein said dielectric multilayer film is provided on said inclined surface of said transparent substrate.