Abstract: An optical module includes a light-forming part and a protective member. The light-forming part includes a base member, a semiconductor light-emitting device, a lens, and a light-receiving device mounted on the base member and disposed, in the emission direction of the semiconductor light-emitting device, between the semiconductor light-emitting device and the lens. The light-receiving surface of the light-receiving device inclines toward the emission portion of the semiconductor light-emitting device such that an inclination angle ? is more than 0° and 90° or less, the inclination angle ? being an angle formed between the optical axis of the semiconductor light-emitting device and a plane including the light-receiving surface of the light-receiving device.

Abstract: A three-color light source 1 is a three-color light source that combines red, green, and blue laser light so as to output light. The three-color light source 1 includes a red LD 11, a green LD 12, a blue LD 13, a first collimator lens 61, a second collimator lens 62, a third collimator lens 63, a first wavelength filter 81, a second wavelength filter 82, a carrier 30 that is equipped with the LDs 11 to 13, the collimator lenses 61 to 63, and the wavelength filters 81 and 82, and a TEC 40 that is equipped with the carrier 30. The red LD 11 is formed of a GaAs-based material, and the green LD 12 and the blue LD 13 are formed of GaN-based materials.

Abstract: An optical module includes a light-forming part; a protective member and including an output window and disposed so as to surround the light-forming part; an adapter connected to the protective member and including an optical passage through which light emitted from the light-forming part and transmitted by the output window passes; and an optical coupling component that is connected to the adapter and that light passing through the optical passage enters. The light-forming part includes semiconductor light-emitting devices and lenses configured to convert, in terms of spot size, light emitted from the semiconductor light-emitting devices. The optical coupling component includes an optical component and a support member supporting the optical component. The support member and the adapter are connected together.

Abstract: An optical module includes a light-forming part and a protective member. The light-forming part includes a base member, a semiconductor light-emitting device, a lens, and a light-receiving device mounted on the base member and disposed, in the emission direction of the semiconductor light-emitting device, between the semiconductor light-emitting device and the lens. The light-receiving surface of the light-receiving device inclines toward the emission portion of the semiconductor light-emitting device such that an inclination angle ? is more than 0° and 90° or less, the inclination angle ? being an angle formed between the optical axis of the semiconductor light-emitting device and a plane including the light-receiving surface of the light-receiving device.

Abstract: An optical module 1 according to an embodiment includes a plurality of laser diodes (LDs) 21 to 23, a multiplexing optical system 30 combining a plurality of laser beams from the respective plurality of LDs, and a package 10 accommodating the plurality of LDs and the multiplexing optical system. The package includes a support mounted with the multiplexing optical system, and a cap having a transmissive window that allows a resultant light beam to pass through. At least one of the LDs has an oscillation wavelength of nor more than 550 nm. The package has an internal moisture content of not more than 3000 ppm. The multiplexing optical system is fixed to the support by a resin curing adhesive.

Abstract: An optical module includes a transmitting member. The transmitting member is fixed to a cap member so as to cover a through-hole. On the assumption that the height of one point on a first surface in a state in which the transmitting member is detached from the cap member is zero and the direction toward the outside of the optical module is a positive direction, the amount of warp that is a difference between the displacement at the central point and the displacement at a standard point, on the first surface, corresponding to a reference point, on the projection image, away from a center of gravity by a particular distance is different between a first geodesic line and a second geodesic line, the displacement being a height of the one point in a direction of the optical axis in a state in which the transmitting member is fixed to the cap member. The transmitting member is joined to the cap member at the first surface or the second surface.

Abstract: An optical module includes a light-forming part and a protective member. The light-forming part includes a base member; semiconductor light-emitting devices mounted on the base member; lenses mounted on the base member and configured to convert, in terms of spot size, light emitted from the semiconductor light-emitting devices; and light-receiving devices that are mounted on the base member, that are disposed, in the emission directions of the semiconductor light-emitting devices, between the semiconductor light-emitting devices and the lenses, and that are configured to directly receive light from the semiconductor light-emitting devices.

Abstract: An optical module 1 according to an embodiment includes a plurality of laser diodes (LDs) 21 to 23, a multiplexing optical system 30 combining a plurality of laser beams from the respective plurality of LDs, and a package 10 accommodating the plurality of LDs and the multiplexing optical system. The package includes a support mounted with the plurality of LDs and the multiplexing optical system, and a cap having a transmissive window that allows a resultant light beam to pass through. At least one of the LDs has an oscillation wavelength of nor more than 550 nm. The package has an internal moisture content of not more than 3000 ppm. The multiplexing optical system is fixed to the support by a resin curing adhesive.

Abstract: A three-color light source 1 is a three-color light source that combines red, green, and blue laser light so as to output light. The three-color light source 1 includes a red LD 11, a green LD 12, a blue LD 13, a first collimator lens 61, a second collimator lens 62, a third collimator lens 63, a first wavelength filter 81, a second wavelength filter 82, a carrier 30 that is equipped with the LDs 11 to 13, the collimator lenses 61 to 63, and the wavelength filters 81 and 82, and a TEC 40 that is equipped with the carrier 30. The red LD 11 is formed of a GaAs-based material, and the green LD 12 and the blue LD 13 are formed of GaN-based materials.

Abstract: An optical module 1 according to an embodiment includes a plurality of laser diodes (LDs) 21 to 23, a multiplexing optical system 30 combining a plurality of laser beams from the respective plurality of LDs, and a package 10 accommodating the plurality of LDs and the multiplexing optical system. The package includes a support mounted with the plurality of LDs and the multiplexing optical system, and a cap having a transmissive window that allows a resultant light beam to pass through. At least one of the LDs has an oscillation wavelength of nor more than 550 nm. The package has an internal moisture content of not more than 3000 ppm. The multiplexing optical system is fixed to the support by a resin curing adhesive.

Abstract: An optical assembly that installs red, green, blue laser diodes (LDs) within a single package is disclosed. The LDs are mounted on a base via respective sub-mounts. Light emitted from the LDs is collimated by collimating lenses and multiplexed by two wavelength filters so as to align optical axes of the light. The multiplexed light has an axis substantially leveled with the axes of the red, green, and blue light measured from the top of the base.

Abstract: A method for manufacturing an optical-assembly includes the steps of preparing an optical connector including a base having an optical waveguide and a first support block holding a first optical fiber, the base having first and second end surfaces; aligning the optical connector to the optical device, the first end surface of the base facing to the optical device, the first support block being fixed to the base in a removable manner; after aligning the optical connector, fixing the base to the optical device; after fixing the base, removing the first support block from the base; after removing the first support block, re-fixing a second support block to the base, the second end surface of the base facing to the second support block. The second support block has an optical fiber and a through hole. The base has a guide pin inserted to the through hole in the re-fixing step.

Abstract: An optical assembly that installs red, green, blue laser diodes (LDs) within a single package is disclosed. The LDs are mounted on a base via respective sub-mounts. Light emitted from the LDs is collimated by collimating lenses and multiplexed by two wavelength filters so as to align optical axes of the light. The multiplexed light has an axis substantially leveled with the axes of the red, green, and blue light measured from the top of the base.

Abstract: An optical assembly that installs red, green, blue laser diodes (LDs) within a single package is disclosed. The LDs are mounted on a base via respective sub-mounts. Light emitted from the LDs is collimated by collimating lenses and multiplexed by two wavelength filters so as to align optical axes of the light. The multiplexed light has an axis substantially leveled with the axes of the red, green, and blue light measured from the top of the base.

Abstract: A method for manufacturing an optical-assembly includes the steps of preparing an optical connector including a base having an optical waveguide and a first support block holding a first optical fiber, the base having first and second end surfaces; aligning the optical connector to the optical device, the first end surface of the base facing to the optical device, the first support block being fixed to the base in a removable manner; after aligning the optical connector, fixing the base to the optical device; after fixing the base, removing the first support block from the base; after removing the first support block, re-fixing a second support block to the base, the second end surface of the base facing to the second support block. The second support block has an optical fiber and a through hole. The base has a guide pin inserted to the through hole in the re-fixing step.

Abstract: An optical assembly is disclosed where the optical assembly provides an optical device and a holder including a sleeve, a skirt, and a lens. The sleeve has a bore, into which an external optical fiber is set to couple with the optical device, providing a target surface in an end thereof. The target surface includes an aiming index to indicate the axis of the lens.

Abstract: An optical module is disclosed, in which the optical module installs a plurality of optical devices each optically coupling with a single fiber in the focused beam coupling system. The optical module includes a condenser lens, and respective optical devices install an individual lens. One of the beam waists of the condenser lens locates on the end of the optical fiber and the other of the beam waist locates on the outer wall of the coupling unit to which the optical devices are attached. One of the beam waists of the individual lens in the optical device substantially aligns with the other beam waist of the condenser lens, while, the other of the beam waist of the individual lens aligns at the semiconductor optical device.