摘要:
Un alignement de diodes laser (112) comporte une pluralité d'ensembles planes et un refroidissement actif de chaque ensemble. Ledit alignement de diodes laser (112) peut fonctionner pendant un cycle opératoire long ou en continu. Une barre de diodes laser (112) et un dissipateur thermique à microcanaux (120) sont connectés thermiquement dans un ensemble plane mince compact (110), la barre de diodes laser étant située à proximité d'un bord (116). Le dispositif de refroidissement (122) comporte un dissipateur thermique à microcanaux (12) situé à proximité de la barre de diodes laser (112) de manière à absorber la chaleur produite par le fonctionnement du laser. Afin que l'agent réfrigérant parvienne dans les microcanaux, chaque ensemble plane mince comprend des passages (150-152) qui relient les microcanaux (120) à des galeries d'entrée et de sortie (142). Chaque passage d'entrée (150) peut comporter une fente étroite qui dirige l'agent réfrigérant dans les microcanaux (120) et augmente la vitesse du débit dans ces derniers. Lesdites galeries (140, 142) sont constituées de trous qui parcourent chacun des ensembles de l'alignement. Les galeries d'entrée et de sortie (140, 142) sont reliées à un système de circulation d'agent réfrigérant conventionnel (122). Ledit alignement de diodes laser (112) à refroidissement actif trouve des applications en tant que pompe optique pour des lasers à solide de grande puissance ou en mettant en contact les diodes avec des lentilles de fibres optiques. En outre, lesdits réseaux peuvent être utiles dans des applications présentant des contraintes en matière d'espace ou des limitations d'énergie et dans des applications militaires et spatiales.
摘要:
In a laser device 1 in which a laser module 2 is mounted on a heat sink 3, a base plate 20 of the laser module 2 is fixed onto a mounting surface 3s of the heat sink 3 in such a manner that a peripheral part 20b is fixed to the heat sink 3 with screws. The elastic force of the base plate 20 causes stress in the direction toward the mounting surface 3s on the central part 20a of the base plate 20 surrounded by the peripheral part 20b.
摘要:
The present invention relates to a method for integrating a sub-micron III-V waveguide laser on a semiconductor photonics platform as well as to a corresponding device/system. The method comprises providing on a semiconductor substrate (1) an electrically insulating layer (2), etching a trench (10) having a width in the range between 50 nm and 800 nm through the electrically insulating layer (2), thereby locally exposing the silicon substrate (1), providing a III-V layer stack in the trench (10) by local epitaxial growth to form a channel waveguide; and providing a light confinement element for confining radiation in the local-epitaxial-grown channel waveguide.
摘要:
A semiconductor laser apparatus includes: a semiconductor laser device that emits laser beam in a first direction; a collimator lens that collimates a component in a second direction perpendicular to the first direction among components of laser beam emitted from the semiconductor laser device; and a lens fixing block having a lens mounting surface perpendicular to a third direction perpendicular to the first and second directions. A first end portion of the collimator lens in the third direction is fixed to the lens mounting surface of the lens fixing block by a fixing resin, and a fillet is formed on each of two crossing surfaces in the first end portion fixed by the fixing resin.
摘要:
The present invention discloses an integrally formed coupling module, to offset polarized noise introduced by a medium air interface and an air medium interface, so that the integrally formed coupling module has no polarization-sensitive characteristic. In the integrally formed coupling module provided in the present invention, a total internal reflective surface reflects a first optical signal emitted by a laser to form a second optical signal, the second optical signal is output to the medium air interface, a medium air interface refracts the second optical signal to form a third optical signal, the third optical signal is output from air to the air medium interface, an air medium interface refracts the third optical signal to form a fourth optical signal, and then the fourth optical signal is output to an optical fiber. In addition, a refractive angle at which the medium air interface performs refraction to form the third optical signal is equal to an incidence angle at which the third optical signal is output to the air medium interface, and a first incident surface and a second incident surface are mutually perpendicular in space.
摘要:
A beam control structure for semiconductor lasers that allows modification of the shape of a beam allowing, for example, higher coupling into an optical fiber. The structure may comprise one or more of a tilted patio, a staircase, a reflective roof, and a reflective sidewall.
摘要:
An optical connector 10 includes a housing 12, a photoelectric conversion circuit board 13 on which a photoelectric conversion element 7 is mounted, and a resin member made of a light transmissive synthetic resin and arranged on a plate surface of the photoelectric conversion circuit board 13 so as to cover the photoelectric conversion element 27. The photoelectric conversion circuit board 13 is housed in the housing 12. The resin member includes a sleeve 34 to which a ferrule 19 attached to an end of an optical fiber 18 is fitted. The sleeve 34 of the resin member is arranged such that an axial direction thereof is substantially perpendicular to the plate surface of the photoelectric circuit board. The resin member integrally includes a lens 39 on an axial line of the sleeve 34 such that the lens 39 faces the photoelectric conversion element 27.