Photonic crystal/waveguide coupler for VCSELS and photodetectors
    1.
    发明授权
    Photonic crystal/waveguide coupler for VCSELS and photodetectors 有权
    用于VCSELS和光电探测器的光子晶体/波导耦合器

    公开(公告)号:US07535944B1

    公开(公告)日:2009-05-19

    申请号:US10860607

    申请日:2004-06-03

    IPC分类号: H01S5/00

    摘要: An optical coupler comprises first and second mirrors. The first mirror is positioned with respect to the second mirror so that a resonant cavity is defined between them. A waveguide structure is positioned in the resonant cavity and includes a photonic crystal coupler. A thickness of the resonant cavity is selected so that a phase matching condition is satisfied for resonance in the resonant cavity. At least one of the first and second mirrors may be formed from a structure in an optoelectronic device. Alternatively, at least one of the first and second mirrors is formed from a semiconductor layer. At least one of the first and second mirrors may be formed as a semiconductor distributed bragg reflector, or as a dielectric distributed bragg reflector. At least one of the first and second mirrors may be a mirror in a vertical cavity surface emitting laser (VCSEL) structure. The photonic crystal coupler structure may be shaped so that first order modes of light incident upon the photonic crystal coupler structure are coupled into the waveguide while zero-order modes are reflected out into the resonant cavity and reflected by the mirror.

    摘要翻译: 光耦合器包括第一和第二反射镜。 第一镜相对于第二镜定位,使得在它们之间限定谐振腔。 波导结构位于谐振腔中并且包括光子晶体耦合器。 选择谐振腔的厚度,使得谐振腔中的谐振满足相位匹配条件。 第一和第二反射镜中的至少一个可以由光电器件中的结构形成。 或者,第一和第二反射镜中的至少一个由半导体层形成。 第一和第二反射镜中的至少一个可以形成为半导体分布式布拉格反射器,或者形成为电介质分布布拉格反射器。 第一和第二反射镜中的至少一个可以是垂直腔表面发射激光(VCSEL)结构中的反射镜。 光子晶体耦合器结构可以被成形为使得入射到光子晶体耦合器结构的一阶光模耦合到波导中,而零阶模式被反射到谐振腔并被反射镜反射。

    Method for semiconductor compositional grading to realize low-resistance, distributed Bragg reflectors
    2.
    发明授权
    Method for semiconductor compositional grading to realize low-resistance, distributed Bragg reflectors 有权
    半导体组成分级方法实现低电阻分布布拉格反射器

    公开(公告)号:US07767480B1

    公开(公告)日:2010-08-03

    申请号:US11063230

    申请日:2005-02-22

    IPC分类号: H01L21/00

    摘要: A method of manufacturing a distributed Bragg reflector (DBR) in group III-V semiconductor compounds with improved optical and electrical characteristics is provided. A selected DBR structure is achieved by sequential exposure of a substrate to predetermined combinations of the elemental sources to produce a pair of DBR layers of compound alloys and a graded region including one or more discrete additional layers between the DBR layers of intermediate alloy composition. Exposure durations and combinations of the elemental sources in each exposure are predetermined by DBR design characteristics.

    摘要翻译: 提供了一种在具有改进的光学和电学特性的III-V族半导体化合物中制造分布式布拉格反射体(DBR)的方法。 选择的DBR结构通过将衬底顺序地暴露于元素源的预定组合来实现,以产生一对复合合金的DBR层,以及在中间合金组成的DBR层之间包括一个或多个离散的附加层的分级区域。 每次曝光中的曝光持续时间和元素源的组合由DBR设计特征预先确定。

    Resonant cavity enhanced VCSEL/waveguide grating coupler
    3.
    发明授权
    Resonant cavity enhanced VCSEL/waveguide grating coupler 有权
    谐振腔增强VCSEL /波导光栅耦合器

    公开(公告)号:US06829286B1

    公开(公告)日:2004-12-07

    申请号:US10136953

    申请日:2002-05-01

    IPC分类号: H01S300

    摘要: An optical coupler comprises first and second mirrors. The first mirror is positioned with respect to the second mirror so that a resonant cavity is defined between them. A waveguide structure is positioned in the resonant cavity and includes a surface-normal grating structure. A thickness of the resonant cavity is selected so that a phase matching condition is satisfied for resonance in the resonant cavity. At least one of the first and second mirrors may be formed from a structure in an optoelectronic device. Alternatively, at least one of the first and second mirrors is formed from a semiconductor layer. At least one of the first and second mirrors may be formed as a semiconductor distributed bragg reflector, or as a dielectric distributed bragg reflector. At least one of the first and second mirrors may be a mirror in a vertical cavity surface emitting laser (VCSEL) structure. The surface-normal grating structure may be shaped so that first order modes of light incident upon the surface-normal grating structure are coupled into the waveguide while zero-order modes are reflected out into the resonant cavity and reflected by the mirror.

    摘要翻译: 光耦合器包括第一和第二反射镜。 第一镜相对于第二镜定位,使得在它们之间限定谐振腔。 波导结构位于谐振腔中,并包括表面法线光栅结构。 选择谐振腔的厚度,使得谐振腔中的谐振满足相位匹配条件。 第一和第二反射镜中的至少一个可以由光电器件中的结构形成。 或者,第一和第二反射镜中的至少一个由半导体层形成。 第一和第二反射镜中的至少一个可以形成为半导体分布式布拉格反射器,或者形成为电介质分布布拉格反射器。 第一和第二反射镜中的至少一个可以是垂直腔表面发射激光(VCSEL)结构中的反射镜。 表面法线光栅结构可以被成形为使得入射到表面法线光栅结构的一阶光模耦合到波导中,而零阶模式被反射到谐振腔并被反射镜反射。

    Polarization control using diffraction gratings in VCSEL waveguide grating couplers
    4.
    发明授权
    Polarization control using diffraction gratings in VCSEL waveguide grating couplers 有权
    在VCSEL波导光栅耦合器中使用衍射光栅的极化控制

    公开(公告)号:US07627018B1

    公开(公告)日:2009-12-01

    申请号:US12005193

    申请日:2007-12-26

    IPC分类号: H01S3/08

    摘要: A VCSEL waveguide grating coupler is provided such that a first and second mirror are positioned to define a resonant cavity between them. The waveguide grating coupler further includes a waveguide having a first grating formed as a part of the waveguide to couple light of a first polarization mode into the waveguide. A second grating is formed on the waveguide grating coupler and is orthogonal to the first grating. The second grating is operative to enhance the light coupled to the waveguide by creating a loss difference between light of the first polarization mode and light of a second polarization mode, so that light of the first polarization mode lases preferentially within the VCSEL.

    摘要翻译: 提供VCSEL波导光栅耦合器,使得第一和第二反射镜被定位成在它们之间限定谐振腔。 波导光栅耦合器还包括具有形成为波导的一部分的第一光栅的波导,以将第一偏振模式的光耦合到波导中。 第二光栅形成在波导光栅耦合器上并与第一光栅正交。 第二光栅可操作以通过产生第一偏振模式的光和第二偏振模式的光之间的损耗差来增强耦合到波导的光,使得第一偏振模式的光优先在VCSEL内发光。

    Broad temperature WDM transmitters and receivers for coarse wavelength division multiplexed (CWDM) fiber communication systems
    5.
    发明授权
    Broad temperature WDM transmitters and receivers for coarse wavelength division multiplexed (CWDM) fiber communication systems 有权
    用于粗波分复用(CWDM)光纤通信系统的宽温WDM发射机和接收机

    公开(公告)号:US07412170B1

    公开(公告)日:2008-08-12

    申请号:US10852842

    申请日:2004-05-24

    IPC分类号: H04J14/02 H04B10/00 H04B10/06

    摘要: A wavelength division multiplexing (WDM) module for transmitting and/or receiving multiple signals simultaneously includes an array of vertical cavity surface emitting lasers (VCSELs) and/or photodetectors, respectively. In the transmitter case, different VCSELs are operated at different wavelengths that change depending on a value of a condition such as temperature and/or one or more other parameters. Multiple VCSELs are assigned to each channel of the WDM. The currently active VCSEL is switched to a different VCSEL assigned to a same channel and preferably having an operating wavelength that is closer to the signal wavelength at the current measured or estimated temperature and/or other parameter value. Multiple photodetectors are assigned to each channel of the WDM, and currently active detector is switched to the second detector within the same channel. A tuning layer and a resonant waveguide grating coupler are preferably integrated into the resonant structure of the VCSEL array and wavelength specific detector array.

    摘要翻译: 用于同时发送和/或接收多个信号的波分复用(WDM)模块分别包括垂直腔表面发射激光器(VCSEL)和/或光电检测器的阵列。 在发射机的情况下,不同的VCSEL以不同的波长工作,这些波长根据诸如温度和/或一个或多个其它参数的条件的值而改变。 多个VCSEL分配给WDM的每个通道。 当前有效的VCSEL被切换到分配给相同通道的不同VCSEL,并且优选地具有在当前测量或估计的温度和/或其他参数值下更接近信号波长的工作波长。 将多个光电探测器分配给WDM的每个通道,并且当前有效检测器被切换到同一通道内的第二检测器。 调谐层和谐振波导光栅耦合器优选地集成到VCSEL阵列和波长特定检测器阵列的谐振结构中。

    High-power coherent arrays of vertical cavity surface emitting lasers
    6.
    发明授权
    High-power coherent arrays of vertical cavity surface emitting lasers 有权
    垂直腔表面发射激光器的大功率相干阵列

    公开(公告)号:US06959027B1

    公开(公告)日:2005-10-25

    申请号:US10278828

    申请日:2002-10-22

    摘要: A high-power coherent array of Vertical Cavity Surface Emitter Lasers is described in which a plurality of Vertical Cavity Surface Emitting Lasers (VCSELs) are provided along with a structure which optically couples each of the VCSELs the plurality of VCSELs to one another by a predetermined amount to cause a coherent mode locking condition to occur. The coupling structure can be a beam cube, a plurality of smaller bean cubes, or a waveguide/grating system, for example. A reference source, or controlled coupling among the VCSELs, is used to phase lock the VCSELs to one another.

    摘要翻译: 描述了一种垂直腔表面发射器激光器的高功率相干阵列,其中提供了多个垂直腔面发射激光器(VCSEL)以及将多个VCSEL的每个VCSEL彼此光学耦合预定的结构的结构 相当于导致相干模式锁定状态发生。 耦合结构可以是例如光束立方体,多个较小的豆立方体,或波导/光栅系统。 VCSEL之间的参考源或受控耦合用于将VCSELs彼此锁相。