Laser comprising stacked laser diodes produced by epitaxial growth inserted between two bragg mirrors
    1.
    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

    IPC分类号: H01S500

    摘要: 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.

    摘要翻译: 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。

    Quantum well semiconductor laser
    3.
    发明授权
    Quantum well semiconductor laser 失效
    量子半导体激光器

    公开(公告)号:US5081634A

    公开(公告)日:1992-01-14

    申请号:US547040

    申请日:1990-07-02

    IPC分类号: H01S5/00 H01S5/34

    CPC分类号: B82Y20/00 H01S5/34

    摘要: The quantum well semiconductor laser has at least one ultrafine layer with a thickness smaller than the critical thickness, the material of which is isoelectronic with that of the well.

    摘要翻译: 量子阱半导体激光器具有至少一个厚度小于临界厚度的超微细层,其临界厚度与阱的等电子质量相同。

    Light emitting compositional semiconductor device
    4.
    发明授权
    Light emitting compositional semiconductor device 失效
    发光组合半导体器件

    公开(公告)号:US5057881A

    公开(公告)日:1991-10-15

    申请号:US444194

    申请日:1989-11-30

    IPC分类号: H01L33/06 H01S5/00 H01S5/34

    CPC分类号: H01L33/06 B82Y20/00 H01S5/34

    摘要: A multiple quantum well light emitting compositional semiconductor device ch as a laser diode or a light emitting diode has an active region comprising an alternating sequence of layers of well layer material and of barrier layer material. The thickness of the barrier layer and of the adjacent well layers is chosen such that for one type of charge carrier a relatively high probability exists for such charge carriers to be present in the barrier region whereas the other type of charge carriers are localized in the potential wells. In this way it is possible to reduce the probability of non-radiative Auger recombination processes occurring thus reducing the threshold current and increasing the quantum efficiency of the device. This is particularly important since material systems with a small bandgap which lase at long wavelengths suitable for optical fibre transmission normally suffer performance penalties due to non-radiative Auger recombination and these penalties can be substantially reduced by tailoring the layer thicknesses to achieve the described probability distributions.

    摘要翻译: 诸如激光二极管或发光二极管的多量子阱发光组合半导体器件具有包括阱层材料层和势垒层材料的交替序列的有源区。 选择阻挡层和相邻阱层的厚度,使得对于一种类型的电荷载体,存在这样的电荷载流子存在于阻挡区域中的相对高的概率,而另一种类型的载流子被定位在电位 井。 以这种方式,可以降低发生的非辐射俄歇复合过程的可能性,从而降低阈值电流并提高器件的量子效率。 这是特别重要的,因为具有适用于光纤传输的长波长的小带隙的材料系统通常由于非辐射俄歇复合而遭受性能惩罚,并且通过调整层厚度可以显着减少这些惩罚以实现所描述的概率分布 。