Multiple semiconductor laser structure with narrow wavelength distribution

    公开(公告)号:US06584130B2

    公开(公告)日:2003-06-24

    申请号:US10061006

    申请日:2002-01-30

    申请人: Christian Hanke

    发明人: Christian Hanke

    IPC分类号: H01S500

    摘要: In the case of a multiple semiconductor laser structure containing a plurality of laser pn junctions stacked vertically one on top of the other, different operating temperatures of the active zones occur during operation on account of the different distance within the layer structure from a common heat sink. The displacements in the emission wavelength caused by the temperature influence are compensated by a variation of the thickness and/or material composition of the active zones, so that a narrow wavelength distribution is achieved.

    Cholesterol esterases with variable substrate specificity
    3.
    发明授权
    Cholesterol esterases with variable substrate specificity 失效
    具有不同底物特异性的胆固醇酯酶

    公开(公告)号:US5312743A

    公开(公告)日:1994-05-17

    申请号:US828980

    申请日:1992-01-29

    CPC分类号: C12N9/18

    摘要: For the preparation of cholesterol esterases with variable substrate specificity by cloning of a cholesterol esterase gene, the active center of which has the sequence -Gly-His-Ser-X-Gly-, wherein X signifies an amino acid, into a vector, transformation of a micro-organism with this vector and expression of the cholesterol esterase gene, one exchanges the amino acid X of the active center for another amino acid by mutagenesis.

    摘要翻译: PCT No.PCT / EP91 / 01089第 371日期1992年1月29日 102(e)日期1992年1月29日PCT Filed 1991年6月6日PCT Pub。 WO91 / 18997 PCT出版物 1991年12月12日。为了通过克隆胆固醇酯酶基因制备具有可变底物特异性的胆固醇酯酶,其活性中心具有序列-Gly-His-Ser-X-Gly-,其中X表示氨基 酸,转化为载体,用该载体转化微生物和胆固醇酯酶基因的表达,通过诱变将活性中心的氨基酸X交换为另一种氨基酸。

    Semiconductor laser arrangement for high output powers in the lateral
fundamental mode
    4.
    发明授权
    Semiconductor laser arrangement for high output powers in the lateral fundamental mode 失效
    半导体激光器布置用于高输出功率的侧向基本模式

    公开(公告)号:US4977567A

    公开(公告)日:1990-12-11

    申请号:US419707

    申请日:1989-10-11

    申请人: Christian Hanke

    发明人: Christian Hanke

    CPC分类号: H01S5/026 H01S5/16 H01S5/50

    摘要: A semiconductor laser arrangement for high output power in the lateral fundamental mode. A semiconductor laser region is provided in which a waveguide is provided for wave guidance, this waveguide being dimensioned such that the laser emission oscillates in the fundamental mode perpendicularly to its propagation direction. The arrangement has a coupling region, and an intensification region in which the lateral wave guidance is cancelled and is provided with a contact for current injection.

    摘要翻译: 一种半导体激光装置,用于在侧向基本模式下实现高输出功率。 提供了一种半导体激光器区域,其中设置波导用于波导,该波导的尺寸使得激光发射以垂直于其传播方向的基模振荡。 该配置具有耦合区域和横向波导引被消除的增强区域,并且设置有用于电流注入的触点。

    Method for coupling a surface-oriented opto-electronic element with an optical fiber and opto-electronic element for carrying out such a method
    5.
    发明授权
    Method for coupling a surface-oriented opto-electronic element with an optical fiber and opto-electronic element for carrying out such a method 有权
    用于将表面取向的光电元件与光纤耦合的方法和用于执行这种方法的光电元件

    公开(公告)号:US06773169B2

    公开(公告)日:2004-08-10

    申请号:US10233695

    申请日:2002-09-03

    IPC分类号: G02B636

    摘要: A method for coupling a surface-oriented opto-electronic element, particularly, a VCSEL laser diode, an LED, or a photodiode, with an optical fiber and an opto-electronic element for carrying out such a method, the opto-electronic element having a rotationally symmetrical protruding structure disposed symmetrically with respect to the optically active zone of the opto-electronic element, includes the steps of wetting the butt of the fiber and/or the protruding structure of the opto-electronic element with a transparent adhesive, moving the opto-electronic element and/or the fiber toward each other such that a substantially frictionless movement of at least one of the element and fiber can occur, waiting for a self-centering of the fiber and the protruding portion; and waiting for or bringing about a hardening of the adhesive for purposes of fixing the now-centered configuration between the fiber and the protruding portion.

    摘要翻译: 一种用于将面向取向的光电元件,特别是VCSEL激光二极管,LED或光电二极管与用于执行这种方法的光纤和光电元件耦合的方法,所述光电元件具有 相对于光电元件的光学活性区域对称地设置的旋转对称的突出结构包括以下透明粘合剂润湿光电元件的对接部和/或突出结构的步骤: 光电子元件和/或光纤彼此相对,使得可以发生元件和光纤中的至少一个的基本上无摩擦的运动,等待光纤和突出部分的自对中; 并且等待或引起粘合剂的硬化,以便将纤维和突出部分之间的现有中心构型固定。

    LED with light emission on all sides
    6.
    发明授权
    LED with light emission on all sides 失效
    LED各侧发光

    公开(公告)号:US5973336A

    公开(公告)日:1999-10-26

    申请号:US963244

    申请日:1997-11-03

    IPC分类号: H01L33/02 H01L33/00

    CPC分类号: H01L33/02

    摘要: An LED having improved light emission characteristics by allowing radiation generated to be guided towards the side faces of the LED by means of a relatively thick waveguide comprised of a transmissive material, specifically in such a way that as many modes as possible can propagate.

    摘要翻译: 通过允许通过由透射材料构成的相对较厚的波导,所产生的辐射被引导到LED的侧面,LED具有改善的发光特性,特别是使得尽可能多的模式可以传播。