InP based high temperature lasers with InAsP quantum well layers and barrier layers of Gax(ALIn)1-xP
    1.
    发明授权
    InP based high temperature lasers with InAsP quantum well layers and barrier layers of Gax(ALIn)1-xP 失效
    基于InP的高温激光器,具有InAsP量子阱层和Gax(ALIn)1-xP的阻挡层

    公开(公告)号:US06730944B1

    公开(公告)日:2004-05-04

    申请号:US10354276

    申请日:2003-01-30

    IPC分类号: H01L2906

    摘要: The invention provides a laser structure that operates at a wavelength of 1.3 &mgr;m and at elevated temperatures and a method of making same. The laser structure includes a quantum well layer of InAsP. The quantum well layer is sandwiched between a first barrier layer and a second barrier layer. Each barrier layer exhibits a higher bandgap energy than the quantum well layer. Also, each barrier layer comprises Gax(AlIn)1−xP in which x 0. This material has a higher bandgap energy than conventional barrier layer materials, such as InGaP. The resulting larger conduction band discontinuity leads to improved high temperature performance without increasing the threshold current of the laser structure.

    摘要翻译: 本发明提供了在1.3μm波长和高温下工作的激光结构及其制造方法。 激光器结构包括InAsP的量子阱层。 量子阱层夹在第一阻挡层和第二阻挡层之间。 每个阻挡层表现出比量子阱层更高的带隙能量。 此外,每个阻挡层包括其中x 0的Gax(AlIn)1-xP。该材料具有比诸如InGaP的常规阻挡层材料更高的带隙能量。 所产生的更大的导带不连续性导致改善的高温性能而不增加激光器结构的阈值电流。

    Deep quantum well electro-absorption modulator
    8.
    发明授权
    Deep quantum well electro-absorption modulator 失效
    深量子阱电吸收调制器

    公开(公告)号:US07443561B2

    公开(公告)日:2008-10-28

    申请号:US11148467

    申请日:2005-06-08

    IPC分类号: G02F1/03 H01L29/06 H01S5/00

    摘要: Double well structures in electro-absorption modulators are created in quantum well active regions by embedding deep ultra thin quantum wells. The perturbation introduced by the embedded, deep ultra thin quantum well centered within a conventional quantum well lowers the confined energy state for the wavefunction in the surrounding larger well and typically results in the hole and electron distributions being more confined to the center of the conventional quantum well. The extinction ratio provided by the electro-absorption modulator is typically increased.

    摘要翻译: 电子吸收调制器中的双阱结构通过嵌入深超薄量子阱在量子阱活性区域中产生。 以常规量子阱为中心的嵌入式,超超薄量子阱引入的扰动降低了周围较大阱中波函数的约束能态,并且通常导致空穴和电子分布更局限于常规量子的中心 好。 电吸收调制器提供的消光比通常增加。

    System and method for the monolithic integration of a light emitting device and a photodetector using a native oxide semiconductor layer
    10.
    发明授权
    System and method for the monolithic integration of a light emitting device and a photodetector using a native oxide semiconductor layer 失效
    用于使用天然氧化物半导体层的发光器件和光电检测器的单片集成的系统和方法

    公开(公告)号:US06483862B1

    公开(公告)日:2002-11-19

    申请号:US09209528

    申请日:1998-12-11

    IPC分类号: H01S500

    摘要: A light emitting device and photodetector combination having a structure in which the layer of the photodetector that contacts the light emitting device is separated from the light emitting device by a native semiconductor oxide layer that is both insulating and has a refractive index lower than that of the light emitting device and the photodetector. This configuration results in a light emitting device and photodetector structure that minimizes the capture of the spontaneous emission light output from the light emitting device by the photodetector while electrically isolating the light emitting device from the photodetector. The electrical isolation of the light emitting device from the photodetector results in a four terminal device in which the light emitting device and photodetector may be independently biased, and can therefore be operated at a very low bias voltage.

    摘要翻译: 一种发光器件和光电检测器组合,具有这样一种结构,其中接触发光器件的光电检测器层通过天然半导体氧化物层与发光器件分离,该天然半导体氧化物层是绝缘的并且折射率低于 发光器件和光电检测器。 这种配置导致发光器件和光电检测器结构,其使由光电检测器从发光器件输出的自发发射光的捕获最小化,同时将发光器件与光电检测器电隔离。 发光器件与光检测器的电隔离导致四端器件,其中发光器件和光电检测器可以被独立地偏置,因此可以在非常低的偏置电压下操作。