SEMICONDUCTOR LASER MODULE
    51.
    发明公开
    SEMICONDUCTOR LASER MODULE 审中-公开
    半导体激光模块

    公开(公告)号:EP2413439A1

    公开(公告)日:2012-02-01

    申请号:EP10755950.2

    申请日:2010-03-17

    摘要: A semiconductor laser module includes a semiconductor device in which at least a semiconductor laser and a bending waveguide are integrated, a beam splitter, and a plurality of detectors. The laser light emitted from the semiconductor laser propagates through the bending waveguide, the laser light emitted through the bending waveguide is input to the beam splitter, a part of the laser light input to the beam splitter is branched by the beam splitter, and the part of the laser light branched is detected by the detectors arranged at different positions in the cross section of a light flux of the part of the laser light. In this semiconductor laser module, a waveform shaping unit configured to make a relation between an output of the semiconductor laser and detection values of the detectors approach a linear relation is provided on an optical path. With this configuration, a wavelength locking control can be stably performed with a high degree of accuracy.

    摘要翻译: 本发明提供一种半导体激光模块,该半导体激光模块具备至少将半导体激光器和弯曲波导一体化的半导体装置,分束器以及多个检测器。 从半导体激光器发射的激光通过弯曲波导传播,通过弯曲波导发射的激光被输入到分束器,输入到分束器的激光的一部分被分束器分支,并且部分 通过配置在激光的一部分的光束的截面中的不同位置的检测器检测分支的激光。 在该半导体激光模块中,在光路上设置波形整形部,该波形整形部使半导体激光器的输出与检测器的检测值之间的关系成为线性关系。 利用该配置,可以高度精确地稳定地执行波长锁定控制。

    Beam combining light source
    52.
    发明公开
    Beam combining light source 审中-公开
    Strahlenkombinierende Lichtquelle

    公开(公告)号:EP2403078A2

    公开(公告)日:2012-01-04

    申请号:EP11160785.9

    申请日:2011-04-01

    IPC分类号: H01S5/40 H01S5/00 H01S5/022

    摘要: The invention relates to sources of optical radiation wherein polarized radiation from first (301) and second (302) rows of light emitters (20a-f) is first collimated and combined into two combined beam using first (311) and second (312) rows of collimating and beam re-directing elements (26a-f), respectively, and then polarization multiplexed in a polarizer (86) with the help of a half-wave plate (85) to form a polarization-multiplexed output beam. In order to reduce the footprint, emitters of the first (301) and second (302) emitter rows are disposed in an interleaved, staggered arrangement, and the second row (312) of collimating and beam re-directing elements is disposed in a space between the first emitter (301) row and the first row (311) of collimating and beam re-directing elements.
    The multiplexed output beam is focused (88) into an optical fibre (99).

    摘要翻译: 本发明涉及光辐射源,其中首先(301)和第二(302)行发光体(20a-f)的偏振辐射首先被准直并且使用第一(311)和第二(312)行 (26a-f),然后借助于半波片(85)在偏振器(86)中进行偏振复用,以形成偏振复用输出光束。 为了减小占位面积,第一(301)和第二(302)发射器行的发射器以交错的交错排列布置,并且准直和光束重新引导元件的第二排(312)设置在空间 在第一发射器(301)行和第一行(311)之间的准直和光束重新引导元件。 复用的输出光束被聚焦(88)到光纤(99)中。

    Laserpumpanordnung und Laserpumpverfahren mit Strahlhomogenisierung

    公开(公告)号:EP2184818A1

    公开(公告)日:2010-05-12

    申请号:EP08168736.0

    申请日:2008-11-10

    IPC分类号: H01S3/0941 G02B27/09 H01S3/06

    摘要: In einer Laserpumpanordnung für ein Laserstrahlung verstärkendes Lasermedium mit mindestens einer Laser-Pumpquelle (1'') mit mehreren Emittern zur Erzeugung von Teilpumpstrahlen (TPS1'' ,TPS2'') werden durch eine Einkopplungsoptik die Teilpumpstrahlen (TPS1'',TPS2'') in einen Homogenisator (3'') geführt und dort in einer Achse durch multiple Reflexionen durchmischt. Hierbei sind Homogenisator (3'') und Lasermedium so ausgebildet und angeordnet, dass der aus dem Homogenisator (3'') austretende Pumpstrahl unter Divergenzerhaltung in der Durchmischungsachse (DA) unmittelbar auf oder in das Lasermedium geführt wird, wobei die Teilpumpstrahlen (TPS1'',TPS2'') in einer zur Durchmischungsachse (DA) senkrechten Projektionsachse (PA) direkt auf oder in das Lasermedium projiziert, insbesondere fokussiert werden.

    摘要翻译: 该装置具有设置在激光泵源(1)和均质器(3)之间的光耦合单元(2)。 光学耦合单元被设计成使得部分泵浦辐射在与穿透混合方向(DA)垂直的投影方向上直接投射或聚焦在激光放射照射激光介质(4)上或激光放射激光介质(4)中。 均化器和激光介质被设计成使得从均化器出射的泵浦光束在通过混合方向的光束扩展角保持下直接被引导到激光介质上或入射到激光介质中。 还包括以下独立权利要求:(1)包括用于放大激光辐射的谐振器的激光系统(2)用于产生用于激光辐射放大激光介质的椭圆泵几何形状的激光泵方法。

    LASERANORDNUNG
    59.
    发明公开
    LASERANORDNUNG 审中-公开
    激光器结构

    公开(公告)号:EP1920509A1

    公开(公告)日:2008-05-14

    申请号:EP05783770.0

    申请日:2005-08-19

    IPC分类号: H01S5/40 G02B27/09

    摘要: The invention relates to a laser array that is suitable for injecting laser light into at least one optical fiber. Said laser array comprises a plurality of laser light sources (100-113) which are placed at a distance from a light incidence surface of the at least one optical fiber, and a diaphragm (700) which is suitable for spatially defining the laser light emitted during operation of the laser light sources (100-113) before the same is injected into the at least one optical fiber. The laser light sources (100-113) encompass at least one group of first laser light sources (100-106) and at least one group of second laser light sources (107-113). The inventive laser array further comprises coupling means that are suitable for coupling the laser light together during operation of the first and second laser light sources (100-106, 107-113) before the laser light enters the at least one optical fiber.

    MULTIPLE BAND PASS FILTERING FOR PYROMETRY IN LASER BASED ANNEALING SYSTEMS
    60.
    发明公开
    MULTIPLE BAND PASS FILTERING FOR PYROMETRY IN LASER BASED ANNEALING SYSTEMS 有权
    多带通滤波器,用于在高温计激光辅助退火设备

    公开(公告)号:EP1831658A2

    公开(公告)日:2007-09-12

    申请号:EP05809879.9

    申请日:2005-10-12

    IPC分类号: G01J5/06 B23K26/073 B23K26/03

    摘要: A thermal processing system includes a source of laser radiation emitting at a laser wavelength, beam projection optics disposed between the reflective surface and a substrate support capable of holding a substrate to be processed, a pyrometer responsive to a pyrometer wavelength, and a wavelength responsive optical element having a first optical path for light in a first wavelength range including the laser wavelength, the first optical path being between the source of laser radiation and the beam projection optics, and a second optical path for light in a second wavelength range including the pyrometer wavelength, the second optical path being between the beam projection optics and the pyrometer. The system can further include a pyrometer wavelength blocking filter between the source of laser radiation and the wavelength responsive optical element.