In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a plurality of radiation beams before the beams are coupled into an optical fiber.

In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a plurality of radiation beams before the beams are coupled into an optical fiber.

An optical receptacle having a first optical receptacle for transmission and a second optical receptacle for reception. The first optical receptacle has a first engaging section and the second optical receptacle has a second engaging section that engages with the first engaging section. A first recessed section and a second recessed section that open externally are formed in the first optical receptacle. A third recessed section that opens externally is formed in the second optical receptacle. Part of each of the inner surfaces of the first recessed section, the second recessed section, and the third recessed section is a reflective surface.

An optoelectronic apparatus includes a dual folding mirror, which is mounted on a carrier substrate and includes first and second reflecting surfaces disposed at opposite angles relative to a normal to the carrier substrate. First and second sensing devices are disposed respectively in proximity to the first and second reflecting surfaces. Each sensing device includes a planar substrate disposed on the carrier substrate and an array of sensing cells disposed on the planar substrate and including respective edge couplers disposed along the edge of the planar substrate so as to couple optical radiation between the sensing cells and the respective reflecting surface.

An optical element includes a lens component and a filter. The lens component has first, second, third, fourth, fifth, sixth and seventh surfaces disposed around and parallel to a reference axis. The lens component further has spaced apart first and second collimating units formed on the first surface, and a third collimating unit formed on the second surface. The second collimating unit is located between the first and third collimating units. The third surface is formed with a groove defined by the fourth, fifth, sixth and seventh surfaces. The filter is disposed on the third surface, covers the groove, and has a first side surface facing the fourth, fifth, sixth and seventh surfaces, and a second side surface opposite to the first side surface.

A waveguide having a bi-directional optical transmission structure comprises: a main waveguide which is formed in a preset direction; a branch waveguide which is connected to at least one of both ends of the main waveguide; and a reflector which is placed at an intersection where the branch waveguide and the at least one of both ends of the main waveguide are connected, and which has a different refraction index from the refraction index of the main waveguide and the refraction index of the branch waveguide, wherein the reflector refracts or reflects in different forms the bidirectional light signals for transmission and reception, and thereby directs the light signal for transmission to the main waveguide, and separates the light signal for reception to the branch waveguide.

A fiber selector includes: a plurality of first reflecting members corresponding to a plurality of focusing optical systems which focus a laser beam from a collimating optical system, and equipped with a reflecting surface capable of reflecting the laser beam towards the focusing optical system; a rotary motor that rotationally moves the first reflecting member between a first position at which the laser beam reflects and a second position which does not block the laser beam, in which the fiber selector rotationally moves the plurality of first reflecting members between the first position and second position so as to selectively switch the propagating direction of the laser beam to any of the plurality of focusing optical systems, in which the reflecting surface of the first reflecting member is a plane perpendicular to the rotation axis of the shaft to which this first reflecting member is fixed, and is arranged so as to face the direction of the rotary motor that causes the shaft to which this first reflecting member is fixed to rotate.

A BOSA device having an adjustable wavelength in two directions comprises a signal transmitter section and a signal receiver section, wherein the signal transmitter section sequentially includes a laser (1-1), a semiconductor optical amplifier (SOA) (3-1), a splitter (4-1), a data upload and download port (5-1), and a first TEC temperature control module (9-1) to control temperature of the laser (1-1) so as to adjust its output wavelength, and the signal receiver section sequentially includes a filter (7-1), a photo detector (8-1), and a receiving end driving device to change an angle of the filter (7-1) with respect to the optical path so as to make a passing wavelength of the filter adjustable. The first TEC temperature control module (9-1) controls temperature of the laser (1-1), and the receiving end driving device drives the filter (7-1) to change an angle of the filter with respect to the optical path.

An optical coupling module reduces a number of optical elements, and includes a collimate lens 2a that collimates a light from the first semiconductor laser 1a and then outputs the first collimate light, a collimate lens 2b that collimates a light from the semiconductor laser 1b in a location at which an emission plane is approximately orthogonal to an emission plane of the semiconductor laser 1a and outputs the second collimate light. The collimate lens 2c collimates light from semiconductor laser 1c in-place in the location at which the emission plane faces the emission plane of the semiconductor laser 1b and outputs a third collimate light. A prism mirror 3 has a rectangular prism with a first reflection plane that reflects the second collimate light to a parallel direction to the first collimate light and a second reflection plane orthogonal to the first reflection plane and reflects the third collimate light to the parallel direction to the first collimate light.

An optical coupling module reduces a number of optical elements, and includes a collimate lens 2a that collimates a light from the first semiconductor laser 1a and then outputs the first collimate light, a collimate lens 2b that collimates a light from the semiconductor laser 1b in a location at which an emission plane is approximately orthogonal to an emission plane of the semiconductor laser 1a and outputs the second collimate light. The collimate lens 2c collimates light from semiconductor laser 1c in-place in the location at which the emission plane faces the emission plane of the semiconductor laser 1b and outputs a third collimate light. A prism mirror 3 has a rectangular prism with a first reflection plane that reflects the second collimate light to a parallel direction to the first collimate light and a second reflection plane orthogonal to the first reflection plane and reflects the third collimate light to the parallel direction to the first collimate light.