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    Semiconductor laser
    1.
    发明授权
    Semiconductor laser 失效
    半导体激光器

    公开(公告)号：US4359775A

    公开(公告)日：1982-11-16

    申请号：US178568

    申请日：1980-08-15

    申请人： Peter Marschall ,  Klaus Petermann ,  Ewald Schlosser ,  Hans-Peter Vollmer ,  Claus Wolk

    发明人： Peter Marschall ,  Klaus Petermann ,  Ewald Schlosser ,  Hans-Peter Vollmer ,  Claus Wolk

    IPC分类号： H01S5/00 ,  H01S5/20 ,  H01S5/323 ,  H01S3/19

    CPC分类号： H01S5/32308 ,  H01S5/20 ,  H01S5/2059

    摘要： A semi-conductor laser comprising a crystal having a sequence of layers forming a heterostructure diode and which includes a laser active zone interposed between a pair of semiconductor layers. Each of these semi-conductor layers has a band gap which is greater than that of the layers within the laser active zone. The laser active zone includes a first semiconductor layer having a given band gap, and at least second and third semiconductor layers each having a band gap which is greater than that of the first layer. The first layer is contiguous with and interposed between semiconductor layers each having a band gap which is greater than that of said first layer and forms a pn-junction with one of those contiguous layers. A strip-shaped region of a uniform conductivity type diffused from the surface of the crystal penetrates into at least one layer of the laser active zone but does not penetrate into the first layer.

    摘要翻译： 一种半导体激光器，包括具有形成异质结构二极管的层序列的晶体，并且包括插入在一对半导体层之间的激光器活性区域。 这些半导体层中的每一个具有比激光活性区内的层的带隙大的带隙。 激光活性区域包括具有给定带隙的第一半导体层，以及至少第二和第三半导体层，每个半导体层的带隙大于第一层的带隙。 第一层与每个具有大于所述第一层的带隙的带隙相邻并且插入在半导体层之间并且与这些邻接层之一形成pn结。 从晶体表面扩散的均匀导电类型的条状区域穿透至激光活性区域的至少一层，但不会渗入第一层。

    Ring interferometer
    2.
    发明授权
    Ring interferometer 失效
    环形干涉仪

    公开(公告)号：US4529313A

    公开(公告)日：1985-07-16

    申请号：US333816

    申请日：1981-12-23

    申请人： Klaus Petermann ,  Peter Russer

    发明人： Klaus Petermann ,  Peter Russer

    IPC分类号： G01C19/72 ,  G01P3/36 ,  G01B9/02 ,  G01C19/64

    CPC分类号： G01C19/72

    摘要： A ring interferometer comprises a light source, an optical beam splitting device for receiving light from the light source, a light path encircling an area at least once and opening at both ends into the optical beam splitting device and a photodetector for detecting light from the light path. The light which enters the light path and is coupled to the optical beam splitting device at both ends passes through the light path in both directions. The light then reunites in the beam splitting device and thereby is brought into interference which is detected by the photodetector. The light source is chosen to produce light which has a coherence time which is substantially shorter than the propagation time of light through the light path.

    摘要翻译： 环形干涉仪包括光源，用于接收来自光源的光的光束分离装置，包围至少一次并在两端开口的区域的光路进入光束分离装置和用于检测来自光的光的光电检测器 路径。 进入光路并且耦合到两端的光束分离装置的光在两个方向上通过光路。 然后，光束在分束装置中重聚，从而被光检测器检测到的干涉。 选择光源以产生具有明显短于通过光路的光的传播时间的相干时间的光。

    Semiconductor element with a silicon layer
    5.
    发明授权
    Semiconductor element with a silicon layer 失效
    具有硅层的半导体元件

    公开(公告)号：US5280189A

    公开(公告)日：1994-01-18

    申请号：US941051

    申请日：1992-12-02

    申请人： Bernd Schuppert ,  Armin Splett ,  Joachim Schmidtchen ,  Klaus Petermann

    发明人： Bernd Schuppert ,  Armin Splett ,  Joachim Schmidtchen ,  Klaus Petermann

    IPC分类号： G02B6/12 ,  G02B6/42 ,  G02F1/015 ,  G02F1/025 ,  H01L31/10 ,  H01L31/105 ,  H01L31/108 ,  H01L29/165 ,  H01L31/00

    CPC分类号： H01L31/105 ,  G02B6/12004 ,  G02B6/42 ,  G02F1/025 ,  G02F2001/0151 ,  G02F2202/105

    摘要： In a semiconductor element is shown having a silicon layer, a waveguide comprising silicon and a diode structure connected with external, conductive contacts. The diode structure is provided in such an arrangement to the waveguide that the diode structure can be influenced by electron hole pairs generated by photons in the waveguide. In order to create a semiconductor element with an optical waveguide and an integrated diode structure, in which high losses in the optical waveguide are avoided, the waveguide is weakly doped, and a germanium-rich layer is a component of the diode structure. The semiconductor element is well suited as a component in integrated optics for optical-electrical conversion.

    摘要翻译： 在具有硅层（1），含硅波导（2）和连接到外部导电触点（6,7）的二极管结构的半导体部件中，二极管结构与波导（2）的布置在 它可以受到光子在波导（2）中产生的电子 - 空穴对的影响。 为了构建具有光波导（2）的半导体部件和其中避免了光波导（2）的高损耗的集成二极管结构，波导（2）被轻微掺杂，锗层是二极管结构的一部分 。 该半导体元件适用于光电转换的集成光学元件。

    Planar optical apparatus for setting the chromatic dispersion in an optical system
    6.
    发明授权
    Planar optical apparatus for setting the chromatic dispersion in an optical system 失效
    用于设置光学系统中的色散的平面光学装置

    公开(公告)号：US07013065B2

    公开(公告)日：2006-03-14

    申请号：US10850338

    申请日：2004-05-19

    申请人： Klaus Petermann ,  Fabian Florian Kerbstadt

    发明人： Klaus Petermann ,  Fabian Florian Kerbstadt

    IPC分类号： G02B6/34

    CPC分类号： G02B6/12014 ,  G02B6/12021

    摘要： A planar optical apparatus for setting the chromatic dispersion in an optical system, which apparatus has: a waveguide input structure with a first free-beam region, a first phase grating, connected to the first free-beam region, for spatially separating the spectral components of a signal, a second free-beam region, connected to the first phase grating, an optical element for spatially dependent modification of the phase of the spatially separated spectral components in the second free-beam region, a second phase grating, connected to the second free-beam region, for combining the spectral components, with their phase modified, and a waveguide output structure with a third free-beam region. In this case, the optical element for spatially dependent modification of the phase of the spatially separated spectral components includes a first phase plate that can be displaced in the second free-beam region.

    摘要翻译： 一种用于设置光学系统中的色散的平面光学装置，该装置具有：具有第一自由度区域的波导输入结构，连接到第一自由度区域的第一相位光栅，用于空间上分离光谱分量 连接到第一相位光栅的第二自由光束区域，用于空间上相关地修改第二自由光束区域中的空间分离的光谱分量的相位的光学元件，连接到第二相位光栅的第二相位光栅 用于组合光谱分量及其相位改变的第二自由光束区域和具有第三自由光束区域的波导输出结构。 在这种情况下，用于空间上分离的光谱分量的相位的空间依赖性修改的光学元件包括可以在第二自由光束区域中移位的第一相位板。

    Method and apparatus measuring absolute rotation
    7.
    发明授权
    Method and apparatus measuring absolute rotation 失效
    测量绝对旋转的方法和装置

    公开(公告)号：US4549806A

    公开(公告)日：1985-10-29

    申请号：US432375

    申请日：1982-09-30

    申请人： Peter Marten ,  Klaus Petermann

    发明人： Peter Marten ,  Klaus Petermann

    IPC分类号： G01C19/72 ,  G01B9/02 ,  G01C19/64

    CPC分类号： G01C19/721 ,  G01C19/72

    摘要： Method for measuring absolute rotation with the aid of a light conductive fiber ring interferometer including a light source, a beam dividing arrangement, a light path formed by a light conductive fiber coil, an optical phase modulator which is disposed in the light path and which modulates the light circulating in the light path with a periodic, optical phase modulation at a fundamental frequency f.sub.0, and a photodetector for providing an electrical output signal. The light circulating in the light path or an electrical output signal from the photodetector is modulated with at least one mixing frequency f.sub.2 in a manner such that an electrical evaluation signal results which has an evaluation frequency f.sub.1 which is smaller than that of the fundamental frequency f.sub.0 and which is evaluated to determine the absolute rotation of interest.

    摘要翻译： 借助于包括光源，光束分配装置，由导光纤维线圈形成的光路的光导纤维环干涉仪来测量绝对旋转的方法，设置在光路中并调制的光相位调制器 在光路中循环的光以基频f0的周期性光相位调制，以及用于提供电输出信号的光电检测器。 在光路中循环的光或来自光电检测器的电输出信号以至少一个混频f2调制，使得电评估信号的结果具有小于基频f0的评估频率f1 并对其进行评估以确定感兴趣的绝对旋转。

    Planar optical apparatus for setting the chromatic dispersion in an optical system
    9.
    发明申请
    Planar optical apparatus for setting the chromatic dispersion in an optical system 失效
    用于设置光学系统中的色散的平面光学装置

    公开(公告)号：US20050089274A1

    公开(公告)日：2005-04-28

    申请号：US10850338

    申请日：2004-05-19

    申请人： Klaus Petermann ,  Fabian Kerbstadt

    发明人： Klaus Petermann ,  Fabian Kerbstadt

    IPC分类号： G02B6/34 ,  G02B6/12

    CPC分类号： G02B6/12014 ,  G02B6/12021

    摘要： A planar optical apparatus for setting the chromatic dispersion in an optical system, which apparatus has: a waveguide input structure with a first free-beam region, a first phase grating, connected to the first free-beam region, for spatially separating the spectral components of a signal, a second free-beam region, connected to the first phase grating, an optical element for spatially dependent modification of the phase of the spatially separated spectral components in the second free-beam region, a second phase grating, connected to the second free-beam region, for combining the spectral components, with their phase modified, and a waveguide output structure with a third free-beam region. In this case, the optical element for spatially dependent modification of the phase of the spatially separated spectral components includes a first phase plate that can be displaced in the second free-beam region.

    摘要翻译： 一种用于设置光学系统中的色散的平面光学装置，该装置具有：具有第一自由度区域的波导输入结构，连接到第一自由度区域的第一相位光栅，用于空间上分离光谱分量 连接到第一相位光栅的第二自由光束区域，用于空间上相关地修改第二自由光束区域中的空间分离的光谱分量的相位的光学元件，连接到第二相位光栅的第二相位光栅 用于组合光谱分量及其相位改变的第二自由光束区域和具有第三自由光束区域的波导输出结构。 在这种情况下，用于空间上分离的光谱分量的相位的空间依赖性修改的光学元件包括可以在第二自由光束区域中移位的第一相位板。