Laser diode and method of fabrication thereof
    7.
    发明授权
    Laser diode and method of fabrication thereof 失效
    激光二极管及其制造方法

    公开(公告)号:US6151347A

    公开(公告)日:2000-11-21

    申请号:US93399

    申请日:1998-06-09

    摘要: A semiconductor laser device structure comprising an active region provided by a quantum well of an indirect bandgap material, the quantum well being divided laterally to form an active region comprising a two dimensional array of localized cells. Preferably the quantum well of indirect band gap material is selected from group IV semiconductor materials and comprises a silicon-germanium alloy. A silicon/silicon-germanium alloy multi-quantum well (MQW) structure is described. In a preferred embodiment, a Si/SiGe alloy MQW laser diode comprises a coplanar double grating configuration etched through the MQW structure to provide distributed feedback. The double intersecting grating structure functions to define an array of "cells" or regions of finite dimensions in the quantum well structure which "localize" carriers within the cells thereby enhancing the radiative emission probability. The grating also provides for combined gain-coupled and index-coupled distributed feedback. The diode structure is preferably designed using a suitable Si/SiGe alloy composition and QW layer thicknesses, to provide for lasing at wavelengths compatible with fiber optic communication applications.

    摘要翻译: 一种半导体激光器件结构,包括由间接带隙材料的量子阱提供的有源区,所述量子阱横向划分以形成包含局部电池的二维阵列的有源区。 优选地,间接带隙材料的量子阱选自IV族半导体材料并且包括硅 - 锗合金。 描述了硅/硅 - 锗合金多量子阱(MQW)结构。 在优选实施例中,Si / SiGe合金MQW激光二极管包括通过MQW结构蚀刻的共面双光栅配置,以提供分布式反馈。 双相交光栅结构用于定义量子阱结构中的“细胞”或有限维的区域的阵列,其使得细胞内的载体“定位”,从而增强辐射发射概率。 光栅还提供组合的增益耦合和折射率耦合分布反馈。 二极管结构优选地使用合适的Si / SiGe合金组成和QW层厚度来设计,以提供与光纤通信应用兼容的波长的激光。

    TUNABLE SOI LASER
    9.
    发明申请
    TUNABLE SOI LASER 有权
    TUNABLE SOI激光器

    公开(公告)号:US20150207296A1

    公开(公告)日:2015-07-23

    申请号:US14601101

    申请日:2015-01-20

    摘要: A wavelength tunable silicon-on-insulator (SOI) laser comprising: a laser cavity including: a semiconductor gain medium having a front end and a back end; and a phase-tunable waveguide platform coupled to the front end of the semiconductor gain medium; wherein the phase-tunable waveguide platform includes a first Distributed Bragg Reflector (DBR) and a second Distributed Bragg Reflector (DBR); at least one of the Distributed Bragg Reflectors having a comb reflectance spectrum; and wherein a mirror of the laser cavity is located at the back end of the semiconductor gain medium.

    摘要翻译: 一种波长可调的绝缘体上硅(SOI)激光器,包括:激光腔,包括:具有前端和后端的半导体增益介质; 以及耦合到所述半导体增益介质的前端的相位可调波导平台; 其中所述相位可调波导平台包括第一分布布拉格反射器(DBR)和第二分布布拉格反射器(DBR); 分布布拉格反射器中的至少一个具有梳状反射光谱; 并且其中所述激光腔的反射镜位于所述半导体增益介质的后端。