Laser comprising stacked laser diodes produced by epitaxial growth inserted between two bragg mirrors
    11.
    发明授权
    Laser comprising stacked laser diodes produced by epitaxial growth inserted between two bragg mirrors 失效
    激光器包括通过在两个布拉格反射镜之间插入的外延生长产生的堆叠激光二极管

    公开(公告)号:US06236670B1

    公开(公告)日:2001-05-22

    申请号:US09147312

    申请日:1998-11-25

    CPC classification number: H01S5/3095 H01S5/18383 H01S5/2004

    Abstract: A laser made of a stack of laser diodes. The stack is inserted between two mirrors to create a laser cavity. The stack of diodes is produced by epitaxial growth of a set of semiconductor layers. The ohmic contact between two adjacent laser diodes is provided by an Esaki diode junction. The optical field of the mode created in the laser cavity is periodically cancelled at the Esaki diode junctions so as to create structures with small dimensions.

    Abstract translation: 由激光二极管组成的激光器。 将叠层插入两个反射镜之间以产生激光腔。 通过一组半导体层的外延生长产生二极管堆叠。 两个相邻激光二极管之间的欧姆接触由Esaki二极管结提供。 激光腔中产生的模式的光场在Esaki二极管接头周期性地被消除,以便产生具有小尺寸的结构。

    Capacitive detector of electromagnetic waves
    12.
    发明授权
    Capacitive detector of electromagnetic waves 失效
    电磁波电容检测器

    公开(公告)号:US5086327A

    公开(公告)日:1992-02-04

    申请号:US593992

    申请日:1990-10-09

    CPC classification number: B82Y20/00 H01L27/1443 H01L31/0352 H01L31/035236

    Abstract: A capacitive detector of electromagnetic waves, comprises three electron levels, wherein an internal barrier prevents a strong coupling between two levels of two neighboring wells. During an irradiation, the electrons are excited from a first level to a second level. The electrons then relax towards a third level until they relax, by tunnel effect, towards the first level. During the transition from the first level towards the third level, a dipole is created. This dipole can be detected by a detector, through the measurement of a potential difference at the terminals of the device.

    Abstract translation: 电磁波的电容检测器包括三个电子水平,其中内部屏障防止两个相邻孔的两个水平面之间的强耦合。 在照射期间,电子从第一电平激发到第二电平。 然后电子向第三级放松,直到通过隧道效应放松至第一级。 在从第一级到第三级的过渡期间,产生偶极子。 通过测量器件端子上的电位差可以由检测器检测该偶极子。

    Doubly-Resonant Optical Parametric Oscillator with Corresponding Pump Recycling
    13.
    发明申请
    Doubly-Resonant Optical Parametric Oscillator with Corresponding Pump Recycling 有权
    具有相应泵回收的双谐振光参量振荡器

    公开(公告)号:US20070223083A1

    公开(公告)日:2007-09-27

    申请号:US11587079

    申请日:2005-02-23

    CPC classification number: G02F1/39 G02F2202/07

    Abstract: The oscillator comprises two resonant cavities in which a non-linear crystal (3) is situated. The incident pumping radiation Rpe follows an emitting path across the crystal, the generated signal and complementary radiation carry out numerous emitted and return paths in the cavities, hence across the crystal and are thus converted into an inverse pumping radiation on the return paths thereof. According to the invention, a device (4) is incorporated in the oscillator for reflection of a fraction of the pumping radiation equivalent to the inverse pumping radiation in the absence of the device.

    Abstract translation: 该振荡器包括两个谐振腔,其中位于非线性晶体(3)。 入射的泵浦辐射R pe遵循晶体两端的发射路径,所产生的信号和互补辐射在空腔中实现许多发射和返回路径,因此跨越晶体,并因此被转换为反向泵浦 在其返回路径上的辐射。 根据本发明,在不存在该装置的情况下,将装置(4)结合在振荡器中用于反射相当于反向泵浦辐射的泵浦辐射的一部分。

    Frequency converter comprising a heterostructure semiconductor waveguide
    15.
    发明授权
    Frequency converter comprising a heterostructure semiconductor waveguide 失效
    变频器包括异质结构半导体波导

    公开(公告)号:US5739949A

    公开(公告)日:1998-04-14

    申请号:US671694

    申请日:1996-06-28

    Abstract: A frequency converter can be used, in particular, to generate optical waves in the medium infrared (3.12 .mu.m) range from optical sources in the near infrared range. It comprises a heterostructure semiconductor waveguide formed by an alternation of layers of material M.sub.I and M.sub.II, at least one of these materials being a non-linear semiconductor and the plane of the layers being parallel to the direction of propagation of the electromagnetic waves in the waveguide.

    Abstract translation: 可以使用变频器,特别是在近红外范围的光源的中红外(3.12μm)范围内产生光波。 它包括由材料MI和MII的交替层形成的异质结构半导体波导,这些材料中的至少一种是非线性半导体,并且这些层的平面平行于波导中的电磁波的传播方向 。

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