High intensity single-mode VCSELs
    11.
    发明授权
    High intensity single-mode VCSELs 失效
    高强度单模VCSEL

    公开(公告)号:US5838715A

    公开(公告)日:1998-11-17

    申请号:US667259

    申请日:1996-06-20

    摘要: A VCSEL 101 comprising an optical cavity having an optical loss and a loss-determining element 117 coupled to the optical cavity. The loss-determining element 117 progressively increases the optical loss of the optical cavity with increasing lateral distance from the optical axis 105. The optical cavity includes a first mirror region 111, a second mirror region 107, a plane light-generating region 125 sandwiched between the first mirror region 111 and the second mirror region 107, perpendicular to the optical axis 105, and an element 113 that defines the lateral extent of the optical cavity in the plane of the light-generating region 125. The first mirror region 111 and the second mirror region 107 are both conductive and have opposite conductivity modes.

    摘要翻译: 包括具有光学损耗的光学腔和耦合到光腔的损耗确定元件117的VCSEL 101。 损耗确定元件117随着从光轴105的横向距离的增加而逐渐增加光学腔的光学损耗。光学腔包括第一镜面区域111,第二镜面区域107,夹在两者之间的平面光产生区域125 垂直于光轴105的第一镜面区域111和第二镜面区域107以及限定光产生区域125的平面中的光腔的横向范围的元件113.第一镜面区域111和 第二反射镜区域107都是导电的并具有相反的导电模式。

    Buried heterostructure device having integrated waveguide grating fabricated by single step MOCVD
    14.
    发明授权
    Buried heterostructure device having integrated waveguide grating fabricated by single step MOCVD 失效
    具有通过单步MOCVD制造的集成波导光栅的埋入异质结构器件

    公开(公告)号:US07941024B2

    公开(公告)日:2011-05-10

    申请号:US12207521

    申请日:2008-09-10

    IPC分类号: G02B6/10

    摘要: The device is an optoelectronic device or transparent waveguide device that comprises a growth surface, a growth mask, an optical waveguide core mesa and a cladding layer. The growth mask is located on the semiconductor surface and defines an elongate growth window having a periodic grating profile. The optical waveguide core mesa is located in the growth window and has a trapezoidal cross-sectional shape. The cladding layer covers the optical waveguide core mesa and extends over at least part of the growth mask. Such devices are fabricated by providing a wafer comprising a growth surface, growing an optical waveguide core mesa on the growth surface by micro-selective area growth at a first growth temperature and covering the optical waveguide core mesa with cladding material at a second growth temperature, lower than the first growth temperature.

    摘要翻译: 该器件是包括生长表面,生长掩模,光波导核心台面和包层的光电器件或透明波导器件。 生长掩模位于半导体表面上并且限定具有周期性光栅轮廓的细长生长窗口。 光波导核心台面位于生长窗口中,具有梯形横截面形状。 包覆层覆盖光波导芯体台面并在生长掩模的至少一部分上延伸。 这样的器件通过提供包括生长表面的晶片来制造,通过在第一生长温度下的微选择性区域生长在生长表面上生长光波导核心台面并且在第二生长温度下覆盖包含材料的光波导芯台面, 低于第一生长温度。

    Buried heterostucture device having integrated waveguide grating fabricated by single step MOCVD
    16.
    发明授权
    Buried heterostucture device having integrated waveguide grating fabricated by single step MOCVD 失效
    具有通过单步MOCVD制造的集成波导光栅的埋式异质结构装置

    公开(公告)号:US07440666B2

    公开(公告)日:2008-10-21

    申请号:US11154034

    申请日:2005-06-16

    IPC分类号: G02B6/10 H01S5/12

    摘要: The device is an optoelectronic device or transparent waveguide device that comprises a growth surface, a growth mask, an optical waveguide core mesa and a cladding layer. The growth mask is located on the semiconductor surface and defines an elongate growth window having a periodic grating profile. The optical waveguide core mesa is located in the growth window and has a trapezoidal cross-sectional shape. The cladding layer covers the optical waveguide core mesa and extends over at least part of the growth mask. Such devices are fabricated by providing a wafer comprising a growth surface, growing an optical waveguide core mesa on the growth surface by micro-selective area growth at a first growth temperature and covering the optical waveguide core mesa with cladding material at a second growth temperature, lower than the first growth temperature.

    摘要翻译: 该器件是包括生长表面,生长掩模,光波导核心台面和包层的光电器件或透明波导器件。 生长掩模位于半导体表面上并且限定具有周期性光栅轮廓的细长生长窗口。 光波导核心台面位于生长窗口中,具有梯形横截面形状。 包覆层覆盖光波导芯体台面并在生长掩模的至少一部分上延伸。 这样的器件通过提供包括生长表面的晶片来制造,通过在第一生长温度下的微选择性区域生长在生长表面上生长光波导核心台面并且在第二生长温度下覆盖包含材料的光波导芯台面, 低于第一生长温度。

    Nitride semiconductor vertical cavity surface emitting laser
    17.
    发明授权
    Nitride semiconductor vertical cavity surface emitting laser 失效
    氮化物半导体垂直腔表面发射激光器

    公开(公告)号:US07352788B2

    公开(公告)日:2008-04-01

    申请号:US11203699

    申请日:2005-08-15

    IPC分类号: H01S5/00

    摘要: In one aspect, a VCSEL includes a base region that has a vertical growth part laterally adjacent a first optical reflector and a lateral growth part that includes nitride semiconductor material vertically over at least a portion of the first optical reflector. An active region has at least one nitride semiconductor quantum well vertically over at least a portion of the lateral growth part of the base region and includes a first dopant of a first electrical conductivity type. A contact region includes a nitride semiconductor material laterally adjacent the active region and a second dopant of a second electrical conductivity type opposite the first electrical conductivity type. A second optical reflector is vertically over the active region and forms with the first optical reflector a vertical optical cavity overlapping at least a portion of the at least one quantum well of the active region. A method of fabricating a VCSEL also is described.

    摘要翻译: 在一个方面,VCSEL包括具有垂直生长部分的横向邻近于第一光学反射器的基底区域和在第一光学反射体的至少一部分上方垂直包括氮化物半导体材料的横向生长部分。 有源区域在基极区域的横向生长部分的至少一部分上垂直地具有至少一个氮化物半导体量子阱,并且包括第一导电类型的第一掺杂物。 接触区域包括横向邻近有源区的氮化物半导体材料和与第一导电类型相反的第二导电类型的第二掺杂剂。 第二光学反射器垂直于有源区域并且与第一光学反射器形成垂直的光学腔,其与有源区的至少一个量子阱的至少一部分重叠。 还描述了制造VCSEL的方法。

    Electroabsorption modulator
    18.
    发明授权
    Electroabsorption modulator 有权
    电吸收调制器

    公开(公告)号:US07142342B2

    公开(公告)日:2006-11-28

    申请号:US10453376

    申请日:2003-06-02

    IPC分类号: G02F1/03 G02F1/07

    摘要: The electroabsorption modulator comprises a p-i-n junction structure that includes an active layer, a p-type cladding layer and an n-type cladding layer with the active layer sandwiched between the cladding layers. The electroabsorption modulator additionally comprises a quantum well structure located within the active layer. The p-type cladding layer comprises a layer of heavily-doped low-diffusivity p-type semiconductor material located adjacent the active layer that reduces the extension of the depletion region into the p-type cladding layer when a reverse bias is applied to the electroabsorption modulator. The reduced extension increases the strength of the electric field applied to the quantum well structure by a given reverse bias voltage. The increased field strength increases the extinction ratio of the electroabsorption modulator.

    摘要翻译: 电吸收调制器包括p-i-n结结构,其包括有源层,p型包层和n型包覆层,活性层夹在包层之间。 电吸收调制器还包括位于有源层内的量子阱结构。 p型包覆层包括位于有源层附近的重掺杂低扩散性p型半导体材料层,当将反向偏压施加到电吸收时减少耗尽区的扩展到p型覆层 调制器。 缩小的延伸通过给定的反向偏置电压增加施加到量子阱结构的电场的强度。 增加的场强提高了电吸收调制器的消光比。

    System and method for the monolithic integration of a light emitting device and a photodetector for low bias voltage operation
    20.
    发明授权
    System and method for the monolithic integration of a light emitting device and a photodetector for low bias voltage operation 有权
    用于低偏压操作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:US06222202B1

    公开(公告)日:2001-04-24

    申请号:US09167961

    申请日:1998-10-06

    IPC分类号: H01L3300

    摘要: A light emitting device and photodetector combination having a structure where the layer of the photodetector that contacts the light emitting device has a semiconductor conductivity type polarity opposite that of the light emitting device. This configuration results in a light emitting device and photodetector structure that has a very low bias voltage requirement. Additionally, by shunting any current flowing through the junction formed where the light emitting device meets the photodetector, the bias voltage requirement is further reduced.

    摘要翻译: 一种发光器件和光电检测器组合,其具有与发光器件接触的光电检测器的层具有与发光器件相反的半导体导电类型极性的结构。 该配置导致发光器件和光电检测器结构具有非常低的偏置电压要求。 此外,通过分流流过发光器件与光电检测器所形成的结的任何电流,偏压要求进一步降低。