Abstract: An optical module (1) including a light receiving/emitting element (3) for transmitting or receiving an optical signal, an optical waveguide (2) having a core part made of a material with translucency and a clad part made of a material having an index of refraction different from an index of refraction of the core part for optically coupling with the light receiving/emitting element (3) and transmitting the optical signal, and a package (5) for accommodating at least one end including an entrance/exit port (2c) of the optical signal in the optical waveguide (2) and the light receiving/emitting element (3); wherein a surface on a side facing a bottom plate mounted with the light receiving/emitting element (3) in the package (5) at the end of the optical waveguide (2) accommodated in the package (5) is configured by a first region including a portion projected into a space inside the package (5), and a second region different from the first region; and the package (5) includes a supporting part (5a) for support

Abstract: A light transmission module includes a reinforcement component for reinforcing a substrate. The reinforcement component is arranged on a surface mounted with the optical element of the substrate. The reinforcement component includes at least two structural portions longer than a maximum length portion of the optical element when seen from a direction perpendicular to the substrate surface. The two structural portions are arranged facing each other with a region, where at least the optical element is arranged, in between when seen from the direction perpendicular to the substrate surface.

Abstract: An optical module (1) including a light receiving/emitting element (3) for transmitting or receiving an optical signal, an optical waveguide (2) having a core part made of a material with translucency and a clad part made of a material having an index of refraction different from an index of refraction of the core part for optically coupling with the light receiving/emitting element (3) and transmitting the optical signal, and a package (5) for accommodating at least one end including an entrance/exit port (2c) of the optical signal in the optical waveguide (2) and the light receiving/emitting element (3); wherein a surface on a side facing a bottom plate mounted with the light receiving/emitting element (3) in the package (5) at the end of the optical waveguide (2) accommodated in the package (5) is configured by a first region including a portion projected into a space inside the package (5), and a second region different from the first region; and the package (5) includes a supporting part (5a) for support