Vertical cavity surface emitting laser
    5.
    发明授权
    Vertical cavity surface emitting laser 有权
    垂直腔表面发射激光

    公开(公告)号:US08218594B2

    公开(公告)日:2012-07-10

    申请号:US12458754

    申请日:2009-07-22

    IPC分类号: H01S5/00

    摘要: The present invention provides a Vertical Cavity Surface Emitting Laser including: a first multilayer film reflector; an active layer having a light emission region; a second multilayer film reflector; and a reflectance adjustment layer in this order on a substrate side. The first multilayer film reflector and the second multilayer film reflector have a laminated structure in which reflectance of oscillation wavelength λx is almost constant without depending on temperature change. The active layer is made of a material with which a maximum gain is obtained at temperature higher than ambient temperature. The reflectance adjustment layer has a laminated structure in which difference ΔR(=Rx−Ry) between reflectance Rx of a region opposed to a central region of the light emission region and reflectance Ry of a region opposed to an outer edge region of the light emission region is increased associated with temperature increase from ambient temperature to high temperature.

    摘要翻译: 本发明提供一种垂直腔表面发射激光器,包括:第一多层膜反射器; 具有发光区域的有源层; 第二多层膜反射器; 和反射率调整层。 第一多层膜反射器和第二多层膜反射器具有振荡波长λx的反射率几乎恒定而不依赖于温度变化的层叠结构。 有源层由在高于环境温度的温度下获得最大增益的材料制成。 反射率调整层具有层叠结构,其中与发光区域的中心区域相对的区域的反射率Rx与与发光区域的外边缘区域相对的区域的反射率Ry之间的差Dgr R(= Rx-Ry) 发光区域随温度从环境温度升高到高温而增加。

    Vertical cavity surface emitting laser
    6.
    发明申请
    Vertical cavity surface emitting laser 有权
    垂直腔表面发射激光

    公开(公告)号:US20100040104A1

    公开(公告)日:2010-02-18

    申请号:US12458754

    申请日:2009-07-22

    IPC分类号: H01S5/183

    摘要: The present invention provides a Vertical Cavity Surface Emitting Laser including: a first multilayer film reflector; an active layer having a light emission region; a second multilayer film reflector; and a reflectance adjustment layer in this order on a substrate side. The first multilayer film reflector and the second multilayer film reflector have a laminated structure in which reflectance of oscillation wavelength λx is almost constant without depending on temperature change. The active layer is made of a material with which a maximum gain is obtained at temperature higher than ambient temperature. The reflectance adjustment layer has a laminated structure in which difference ΔR(=Rx−Ry) between reflectance Rx of a region opposed to a central region of the light emission region and reflectance Ry of a region opposed to an outer edge region of the light emission region is increased associated with temperature increase from ambient temperature to high temperature.

    摘要翻译: 本发明提供一种垂直腔表面发射激光器,包括:第一多层膜反射器; 具有发光区域的有源层; 第二多层膜反射器; 和反射率调整层。 第一多层膜反射器和第二多层膜反射器具有振荡波长λx的反射率几乎恒定而不依赖于温度变化的层叠结构。 有源层由在高于环境温度的温度下获得最大增益的材料制成。 反射率调整层具有层叠结构,其中与发光区域的中心区域相对的区域的反射率Rx与与发光区域的外边缘区域相对的区域的反射率Ry之间的差Dgr R(= Rx-Ry) 发光区域随温度从环境温度升高到高温而增加。

    Vertical cavity surface emitting laser
    7.
    发明授权
    Vertical cavity surface emitting laser 有权
    垂直腔表面发射激光

    公开(公告)号:US08385381B2

    公开(公告)日:2013-02-26

    申请号:US11427003

    申请日:2006-06-28

    IPC分类号: H01S5/00

    摘要: In a VCSEL, a first multilayer film reflector, an active layer having a light emitting central region, a second multilayer film reflector, and a transverse mode adjustment layer are layered in this order. The first multilayer film reflector has a quadrangle current injection region with an intersection of diagonal lines corresponding to the light emitting central region. The second multilayer film reflector has a light emitting window provided in a region corresponding to one diagonal line of the current injection region and a pair of grooves provided with the light emitting window in between. The transverse mode adjustment layer is provided correspondingly to the light emitting window, and reflectance of a peripheral region thereof is lower than that of a central region thereof.

    摘要翻译: 在VCSEL中,依次层叠第一多层膜反射体,具有发光中心区域的有源层,第二多层膜反射体,横模式调整层。 第一多层膜反射器具有四边形电流注入区域,对应于发光中心区域的对角线交叉。 第二多层膜反射器具有设置在对应于当前注入区域的一个对角线的区域中的发光窗口和设置在其间的发光窗口的一对凹槽。 相对于发光窗设置横向模式调整层,其周边区域的反射率低于其中央区域的反射率。

    Surface emitting laser diode
    9.
    发明授权
    Surface emitting laser diode 失效
    表面发射激光二极管

    公开(公告)号:US07526008B2

    公开(公告)日:2009-04-28

    申请号:US11746160

    申请日:2007-05-09

    申请人: Masaki Shiozaki

    发明人: Masaki Shiozaki

    IPC分类号: H01S5/00

    摘要: A surface emitting semiconductor laser device which can be manufactured easily and inexpensively and in which the direction of polarization of a laser beam can be controlled into a fixed direction. An oxidizing treatment is applied to a current confinement layer to form a current passage region in a rectangular shape having an in-plane anisotropy. In addition, a pair of trenches with their side surfaces, on the side of a beam outgoing aperture, set to be parallel to either of the diagonal direction of the current passage region is provided at opposite positions with the beam outgoing aperture as a center therebetween. The direction of polarization of the laser beam made to go out through the beam outgoing aperture is specified into only one direction, whereby the direction of polarization can be accurately controlled to a fixed direction. Besides, where the trench or trenches are filled with a metallic material or insulating material which is absorptive with respect to the laser beam, the polarization ratio of the laser beam is further enhanced.

    摘要翻译: 可以容易且廉价地制造能够将激光束的偏振方向控制在固定方向的表面发射半导体激光器件。 对电流限制层进行氧化处理,形成具有面内各向异性的矩形的电流通路区域。 此外,设置成平行于电流通道区域的对角方向中的任一方的其侧表面侧面的一对沟槽的光束出射孔设置在作为其中心的光束出射孔的相对位置处 。 使通过光束射出孔径出射的激光束的偏振方向仅被指定为一个方向,从而可以精确地将偏振方向控制到固定方向。 此外,在沟槽或沟槽充满相对于激光束吸收的金属材料或绝缘材料的情况下,激光束的偏振比进一步提高。

    SURFACE EMITTING LASER DIODE
    10.
    发明申请
    SURFACE EMITTING LASER DIODE 失效
    表面发射激光二极管

    公开(公告)号:US20070248125A1

    公开(公告)日:2007-10-25

    申请号:US11746160

    申请日:2007-05-09

    申请人: Masaki Shiozaki

    发明人: Masaki Shiozaki

    IPC分类号: H01S3/10

    摘要: A surface emitting semiconductor laser device which can be manufactured easily and inexpensively and in which the direction of polarization of a laser beam can be controlled into a fixed direction. An oxidizing treatment is applied to a current confinement layer to form a current passage region in a rectangular shape having an in-plane anisotropy. In addition, a pair of trenches with their side surfaces, on the side of a beam outgoing aperture, set to be parallel to either of the diagonal direction of the current passage region is provided at opposite positions with the beam outgoing aperture as a center therebetween. The direction of polarization of the laser beam made to go out through the beam outgoing aperture is specified into only one direction, whereby the direction of polarization can be accurately controlled to a fixed direction. Besides, where the trench or trenches are filled with a metallic material or insulating material which is absorptive with respect to the laser beam, the polarization ratio of the laser beam is further enhanced.

    摘要翻译: 可以容易且廉价地制造能够将激光束的偏振方向控制在固定方向的表面发射半导体激光器件。 对电流限制层进行氧化处理,形成具有面内各向异性的矩形的电流通路区域。 此外,设置成平行于电流通道区域的对角方向中的任一方的其侧表面侧面的一对沟槽的光束出射孔设置在与出射孔作为中心的相对位置处 。 使通过光束射出孔径出射的激光束的偏振方向仅被指定为一个方向,从而可以精确地将偏振方向控制到固定方向。 此外,在沟槽或沟槽充满相对于激光束吸收的金属材料或绝缘材料的情况下,激光束的偏振比进一步提高。