Optical devices using a penternary III-V material system
    42.
    发明授权
    Optical devices using a penternary III-V material system 有权
    使用五元III-V材料系统的光学器件

    公开(公告)号:US07759672B2

    公开(公告)日:2010-07-20

    申请号:US11909277

    申请日:2006-03-30

    申请人: Renato Bugge

    发明人: Renato Bugge

    IPC分类号: H01L33/00 H01L29/08 H01L21/00

    摘要: The invention relates to the design and processing of a semiconductor optical device. The device is formed of at least four layers of III-V compounds in which one consists of the penternary AlGaInAsSb material. The structure is wet etched in order to form optical ridge waveguides. One such device has incorporated two waveguides which are connected through a new junction design which can be made by wet etching. In one design the junction and waveguides consists of wet etched AlO.90GaO.10AsSb cladding around a core of AlO.28GaO.72AsSb in which an active layer composed of AlO.22InO.22GaO.55AsSb/InO.29GaO.71AsSb quantum wells is embedded. The resulting device is a erdge junction laser which has single mode emission and emits a narrow line width. We made and tested a device in the 2.34 müm to 2.375 müm wavelength area and found it to have an emission line width of around 0.5 nm.

    摘要翻译: 本发明涉及半导体光学器件的设计和处理。 该器件由至少四层III-V族化合物形成,其中一层由五元AlGaInAsSb材料组成。 为了形成光脊波导,将结构湿式蚀刻。 一个这样的器件已经并入了两个波导,这些波导通过可以通过湿蚀刻制成的新结点设计连接。 在一个设计中,结和波导由在AlO.28Ga0.72AsSb的核心周围的湿蚀刻的AlO.90Ga0.10AsSb包层组成,其中嵌入由AlO 22 InO 22 Ga 0.5 As Asbb / In 0.2 Ga 0.1 As Sb量子阱组成的有源层 。 所得到的器件是具有单模发射并发射窄线宽度的脉冲结激光器。 我们制造和测试了一个2.34 m到2.375 m的波长区域的器件,发现它的发射线宽度约为0.5 nm。

    Microphotonic waveguide including core/cladding interface layer
    44.
    发明申请
    Microphotonic waveguide including core/cladding interface layer 有权
    微波导管包括芯/包层界面层

    公开(公告)号:US20080253728A1

    公开(公告)日:2008-10-16

    申请号:US11899234

    申请日:2007-09-05

    IPC分类号: G02B6/10 C03B37/022

    摘要: The invention provides a waveguide with a waveguide core having longitudinal sidewall surfaces, a longitudinal top surface, and a longitudinal bottom surface that is disposed on a substrate. An interface layer is disposed on at least one longitudinal sidewall surface of the waveguide core. A waveguide cladding layer is disposed on at least the waveguide core sidewall and top surfaces, over the interface layer. The waveguide of the invention can be produced by forming a waveguide undercladding layer on a substrate, and then forming a waveguide core on the undercladding layer. An interface layer is then formed on at least a longitudinal sidewall surface of the waveguide core, and an upper cladding layer is formed on a longitudinal top surface and on longitudinal sidewall surfaces of the waveguide core, over the interface layer.

    摘要翻译: 本发明提供一种具有波导芯的波导,波导芯具有纵向侧壁表面,纵向顶表面和设置在基底上的纵向底表面。 界面层设置在波导芯的至少一个纵向侧壁表面上。 至少在波导芯侧壁和顶表面上,在界面层上设置波导覆层。 本发明的波导可以通过在基板上形成波导管下封层,然后在下封层上形成波导芯来制造。 然后在波导芯的至少纵向侧壁表面上形成界面层,并且在该界面层上的纵向顶表面和波导芯的纵向侧壁表面上形成上覆层。

    Ridge waveguide device surface passivation by epitaxial regrowth
    45.
    发明授权
    Ridge waveguide device surface passivation by epitaxial regrowth 有权
    Ridge波导器件通过外延再生长表面钝化

    公开(公告)号:US07378681B2

    公开(公告)日:2008-05-27

    申请号:US10639093

    申请日:2003-08-12

    申请人: Patrick Abraham

    发明人: Patrick Abraham

    IPC分类号: H01L21/00 H01L21/265

    摘要: A method for reducing surface recombination in an area next to a mesa in devices containing active and passive sections. This is obtained by growing, by metalorganic vapor phase epitaxy (MOVPE), a thin epitaxial layer of material with larger bandgap than a waveguide material and preferably smaller surface recombination rate than the waveguide material. This thin layer is preferably non-intentionally doped to avoid creating a surface leakage path, thin enough to allow for carrier to diffuse to and thermalize in the waveguide layer and thick enough to prevent carriers to tunnel through it.

    摘要翻译: 一种用于在包含有源和无源部分的器件中减少在台面旁边区域中的表面复合的方法。 这是通过用金属有机气相外延(MOVPE)生长的,这是一种比波导材料具有更大带隙的材料的薄外延层,优选比波导材料更小的表面复合速率。 该薄层优选是非有意掺杂的,以避免产生足够薄的表面泄漏路径,以允许载体在波导层中扩散和热化,并且足够厚以防止载流子穿过它。

    Optical functional device based on Mach-Zehnder interferometer
    46.
    发明授权
    Optical functional device based on Mach-Zehnder interferometer 失效
    基于Mach-Zehnder干涉仪的光功能元件

    公开(公告)号:US07266266B2

    公开(公告)日:2007-09-04

    申请号:US10825119

    申请日:2004-04-16

    申请人: Keisuke Matsumoto

    发明人: Keisuke Matsumoto

    IPC分类号: G02B6/26 G02F1/225

    摘要: An optical device for optical communication includes a first main electrode disposed between a first splitter and a second splitter on a first arm. A first auxiliary electrode is disposed between the second splitter and a third splitter on the first arm. A second main electrode and a second auxiliary electrode are disposed between a third splitter and a fourth splitter on a second arm. The second main electrode is provided on the second arm at the first port side, and the second auxiliary electrode is provided on the second arm at the second port side. By such disposition of the first and second auxiliary electrodes, input signal light applied through a third port or a fourth port acts on the first main electrode prior to the first and second auxiliary electrodes. Therefore, the input signal light will not be affected by the first and second auxiliary electrodes.

    摘要翻译: 用于光通信的光学装置包括设置在第一分离器和第一分支器之间的第一主电极。 第一辅助电极设置在第二分离器和第一臂上的第三分离器之间。 第二主电极和第二辅助电极设置在第二臂上的第三分离器和第四分离器之间。 第二主电极在第一端口侧设置在第二臂上,第二辅助电极在第二端口侧设置在第二臂上。 通过这样布置第一和第二辅助电极,通过第三端口或第四端口施加的输入信号光在第一和第二辅助电极之前作用在第一主电极上。 因此,输入信号光不受第一和第二辅助电极的影响。

    Multichannel optical path changing device and its production method
    47.
    发明申请
    Multichannel optical path changing device and its production method 失效
    多通道光路改变装置及其制作方法

    公开(公告)号:US20070140636A1

    公开(公告)日:2007-06-21

    申请号:US10575564

    申请日:2004-10-13

    IPC分类号: G02B6/10

    摘要: The present invention relates to a multichannel optical path changing device that is constituted of resin optical waveguides and mirrors and that changes a direction of an optical path. This device has monolithically formed cores having a mirror therebetween and optical path directions changed, and has multichannel cores simultaneously formed under a condition that their positional relationship is maintained. This device can be produced by a first or second method. The first method comprises steps of forming a parallelepiped block on a substrate by a cladding resin; forming a film of a core layer to cover the block by a core resin; and simultaneously forming cores having an optical path direction rectangularly changed, by selectively etching the core layer and the block. The second method comprises steps of forming a film of a core layer on a substrate by a resin; and simultaneously forming a plurality of cores having an optical path rectangularly changed, by selectively etching the core layer, under a condition that their positional relationship is maintained.

    摘要翻译: 本发明涉及由树脂光波导和反射镜构成并改变光路方向的多通道光路改变装置。 该装置具有在其间具有反射镜并且光路方向改变的单片成形芯,并且在保持它们的位置关系的条件下同时形成多通道芯。 该装置可以通过第一种或第二种方法制造。 第一种方法包括通过包覆树脂在基底上形成平行六面体块的步骤; 通过芯树脂形成芯层的膜以覆盖块; 并且通过选择性地蚀刻芯层和块,同时形成光路方向的矩形变化的芯。 第二种方法包括通过树脂在基底上形成芯层的膜的步骤; 并且通过在保持其位置关系的条件下选择性地蚀刻芯层,同时形成具有矩形变化的光路的多个芯。

    Integrated planar composite coupling structures for bi-directional light beam transformation between a small mode size waveguide and a large mode size waveguide

    公开(公告)号:US07218809B2

    公开(公告)日:2007-05-15

    申请号:US11216758

    申请日:2005-08-31

    IPC分类号: G02B6/26 G02B6/42

    摘要: Composite optical waveguide structures or mode transformers and their methods of fabrication and integration are disclosed, wherein the structures or mode transformers are capable of bi-directional light beam transformation between a small mode size waveguide and a large mode size waveguide. One aspect of the present invention is directed to an optical mode transformer comprising a waveguide core having a high refractive index contrast between the waveguide core and the cladding, the optical mode transformer being configured such that the waveguide core has a taper wherein a thickness of the waveguide core tapers down to a critical thickness value, the critical thickness value being defined as a thickness value below which a significant portion of the energy of a light beam penetrates into the cladding layers surrounding the taper structure thereby enlarging the small mode size. This primary tapered core structure may be present in either a vertical or horizontal direction and may be combined with further up taper or down taper structures in the directions transverse to the primary taper direction. Another aspect of the present invention is directed to a non-cylindrical graduated refractive index (GRID) lens structure. The non-cylindrical GRIN structure has a graded refractive index having a maximum value at its core and a minimum value at its outer edges. The grading of the refractive index is provided in a either the vertical or horizontal directions and may have either a fixed refractive index or a graded refractive index in the transverse directions. Yet another aspect of the present invention is directed to composite optical mode transformers that are combinations of the taper waveguide structures and the non-cylindrical graduated refractive index structures. Yet another aspect of the present invention is the further integration of the mode transformers with V-grooves for multiple input/output fibers and alignment platform for multiple input/output photonic chips or devices.

    Accurate positioning of components of a optical assembly
    50.
    发明授权
    Accurate positioning of components of a optical assembly 有权
    精确定位光学组件的部件

    公开(公告)号:US07209235B2

    公开(公告)日:2007-04-24

    申请号:US10616521

    申请日:2003-07-10

    申请人: Kristian Blidegn

    发明人: Kristian Blidegn

    摘要: A passive alignment technique is disclosed to facilitate accurate positioning of components of an optical assembly. In one aspect, a method includes directing light onto components of an optical assembly in which a first component includes a first pattern of marks with a first frequency and a second component includes a second pattern of marks with a second different frequency. An optical signal corresponding to the superposition of the first and second patterns is detected. Based on the detected optical signal, a determination may be made as to whether the first and second components are properly positioned with respect to one another.

    摘要翻译: 公开了一种无源对准技术,以便于光学组件的部件的精确定位。 在一个方面,一种方法包括将光引导到光学组件的部件上,其中第一部件包括具有第一频率的标记的第一图案,第二部件包括具有第二不同频率的标记的第二图案。 检测对应于第一和第二图案的叠加的光信号。 基于检测到的光信号,可以确定第一和第二部件是否相对于彼此适当地定位。