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    Superluminescent diode and method of manufacturing the same
    1.
    发明授权
    Superluminescent diode and method of manufacturing the same 有权
    超发光二极管及其制造方法

    公开(公告)号：US07599403B2

    公开(公告)日：2009-10-06

    申请号：US11635195

    申请日：2006-12-07

    申请人： Moon Ho Park ,  Yong Soon Baek ,  Kwang Ryong Oh

    发明人： Moon Ho Park ,  Yong Soon Baek ,  Kwang Ryong Oh

    IPC分类号： H01S3/00 ,  H01S5/00

    CPC分类号： H01S5/0265 ,  B82Y20/00 ,  H01S5/026 ,  H01S5/0425 ,  H01S5/101 ,  H01S5/2063 ,  H01S5/2201 ,  H01S5/2224 ,  H01S5/2275 ,  H01S5/3406 ,  H01S5/34306 ,  H01S5/4006

    摘要： A 1.55 μm SLD having a laser diode (LD) region and a semiconductor optical amplifier (SOA) region, and a method of fabricating the same, are disclosed. The SLD includes: an InP substrate having a LD region and a SOA region for amplifying light emitted from the LD region; an optical waveguide having a BRS (buried ridge strip) structure having an active layer of resonant strip pattern formed on the InP substrate and extending from the SOA region to the LD region; a first electrode formed on the active layer in the SOA region, a second electrode formed on the active layer in the LD region and electrically isolated from the first electrode; and a current blocking region interposed between the first electrode and the second electrode in order to electrically isolate the first electrode and the second electrode from each other.

    摘要翻译： 公开了具有激光二极管（LD）区域和半导体光放大器（SOA）区域的1.55μmSLD及其制造方法。 SLD包括：具有LD区域的InP衬底和用于放大从LD区域发射的光的SOA区域; 具有BRS（埋脊条）结构的光波导，其具有形成在InP衬底上并从SOA区延伸到LD区的谐振带图案的有源层; 形成在SOA区域中的有源层上的第一电极，形成在LD区域中的有源层上并与第一电极电隔离的第二电极; 以及插入在第一电极和第二电极之间的电流阻挡区域，以将第一电极和第二电极彼此电隔离。

    Optical deflector
    4.
    发明授权
    Optical deflector 失效
    光学偏转器

    公开(公告)号：US07248415B2

    公开(公告)日：2007-07-24

    申请号：US11237043

    申请日：2005-09-28

    申请人： Oh Kee Kwon ,  Kang Ho Kim ,  Hyun Soo Kim ,  Jong Hoi Kim ,  Kwang Ryong Oh

    发明人： Oh Kee Kwon ,  Kang Ho Kim ,  Hyun Soo Kim ,  Jong Hoi Kim ,  Kwang Ryong Oh

    IPC分类号： G02B3/00 ,  G02B5/04 ,  G02F1/295

    CPC分类号： G02B27/095 ,  G02B19/0009 ,  G02B19/0052 ,  G02B26/0875 ,  G02B27/0977 ,  G02B2006/12078 ,  G02B2006/12104 ,  G02B2006/12145 ,  G02F1/295

    摘要： Provided is an optical deflector for deflecting radiation beams. The optical deflector includes: a peripheral region having a first effective refractive index; and a deflection pattern region having a predetermined shape and a second effective refractive index, wherein the second effective refractive index differs from the first effective refractive index. Here, due to the deflection pattern region having the predetermined shape, the radiation beams are deflected in a direction starting from a certain point. By using the optical deflector, the locus of a light source can be designed in one of various forms, such as a straight line, a circle, an ellipse, or a parabola.

    摘要翻译： 提供了用于偏转辐射束的光学偏转器。 光学偏转器包括：具有第一有效折射率的周边区域; 以及具有预定形状和第二有效折射率的偏转图案区域，其中所述第二有效折射率与所述第一有效折射率不同。 这里，由于具有预定形状的偏转图案区域，辐射束在从某一点开始的方向上偏转。 通过使用光学偏转器，光源的轨迹可以被设计成各种形式之一，例如直线，圆形，椭圆形或抛物线。

    Wavelength tunable light source integrated with optical amplifier, beam steering unit, and concave diffraction grating
    5.
    发明授权
    Wavelength tunable light source integrated with optical amplifier, beam steering unit, and concave diffraction grating 失效
    波长可调光源与光放大器，光束转向单元和凹衍射光栅集成

    公开(公告)号：US07133194B1

    公开(公告)日：2006-11-07

    申请号：US11388522

    申请日：2006-03-24

    申请人： Oh Kee Kwon ,  Kang Ho Kim ,  Kwang Ryong Oh ,  Jong Hoi Kim ,  Eun Deok Sim ,  Hyun Soo Kim

    发明人： Oh Kee Kwon ,  Kang Ho Kim ,  Kwang Ryong Oh ,  Jong Hoi Kim ,  Eun Deok Sim ,  Hyun Soo Kim

    IPC分类号： H01S3/13

    CPC分类号： H01S5/4062 ,  H01S5/026 ,  H01S5/0268 ,  H01S5/06243 ,  H01S5/141 ,  H01S5/4075

    摘要： Provided is a wavelength tunable light source that can electrically tune wavelengths by monolithically integrating an optical amplifier, a beam steering unit, and a concave diffraction grating on a single substrate. A beam is deflected by the beam steering unit when an electrical signal is applied to two electrodes installed in the beam steering unit to be incident on the diffraction grating, and then diffracted by the diffraction grating according to the incidence angle such that part of the beam with a specific wavelength is reflected, thereby achieving wavelength tuning. Since the wavelength tuning is achieved electrically, the wavelength tunable light source is structurally stable and has a rapid wavelength tuning rate.

    摘要翻译： 提供了一种波长可调光源，其可以通过在单个基板上单片集成光放大器，光束转向单元和凹衍射光栅来电调谐波长。 当电信号被施加到安装在光束转向单元中的两个电极入射到衍射光栅上时，光束被光束转向单元偏转，然后根据入射角被衍射光栅衍射，使得光束的一部分 反射特定波长，从而实现波长调谐。 由于波长调谐是电气实现的，波长可调光源在结构上是稳定的并且具有快速的波长调谐率。

    Optical Switching device
    6.
    发明授权
    Optical Switching device 失效
    光开关器件

    公开(公告)号：US5581108A

    公开(公告)日：1996-12-03

    申请号：US301998

    申请日：1994-09-07

    申请人： Hong-Man Kim ,  Kwang-Ryong Oh ,  Ki-Sung Park ,  Chong-Dae Park

    发明人： Hong-Man Kim ,  Kwang-Ryong Oh ,  Ki-Sung Park ,  Chong-Dae Park

    IPC分类号： G02F1/015 ,  G02F1/313 ,  H01L31/00 ,  G02B6/26

    CPC分类号： G02F1/3138 ,  G02F2001/0152 ,  G02F2202/102

    摘要： Disclosed is an optical switch device for totally reflecting an incident light therein in accordance with a change in refractive index occurring owing to current application, which is manufactured by the steps of: sequentially forming an optical waveguide layer, an n-InP clad layer and an n-InGaAs cap layer on a main surface of an n-InP substrate using an epitaxial growing; selectively etching the n-InGaAs cap layer to form an opening tapered downward; diffusing an impurity into the n-InP clad layer through the opening and into the n-InGaAs cap layer to a predetermined depth from a surface thereof so as to form a first impurity diffused region in the n-InP clad layer under the opening and to form a second impurity diffused region along the surface of the n-InGaAs cap layer; etching the layers on the optical waveguide layer using a mask to form a ridge-shaped waveguide; and forming electrodes on the n-InGaAs cap layer and an exposed surface of the n-InP clad layer and on a surface which is opposite to the main surface of the n-InP substrate. Also, before forming the n-InGaAs cap layer, a p-InP current blocking layer is formed between the n-InP clad layer and the n-InGaAs cap layer so as to prevent a current from being dispersed other portions excluding the impurity diffused portion.

    摘要翻译： 公开了一种用于根据由于电流施加而发生的折射率的变化而全部反射入射光的光学开关装置，其通过以下步骤制造：顺序地形成光波导层，n-InP覆盖层和 使用外延生长在n-InP衬底的主表面上的n-InGaAs覆盖层; 选择性地蚀刻n-InGaAs覆盖层以形成向下锥形的开口; 通过开口将杂质扩散到n-InP包层中并从其表面扩散到n-InGaAs覆盖层至预定深度，以便在开口下方的n-InP包层中形成第一杂质扩散区域，并且 沿着n-InGaAs覆盖层的表面形成第二杂质扩散区域; 使用掩模蚀刻光波导层上的层以形成脊形波导; 以及在n-InGaAs覆盖层上形成电极以及n-InP覆盖层的暴露表面和与n-InP衬底的主表面相对的表面上形成电极。 此外，在形成n-InGaAs覆盖层之前，在n-InP覆盖层和n-InGaAs覆盖层之间形成p-InP电流阻挡层，以防止电流分散除杂质扩散部分之外的其它部分 。

    Reflective semiconductor optical amplifier (R-SOA) and superluminescent diode (SLD)
    7.
    发明授权
    Reflective semiconductor optical amplifier (R-SOA) and superluminescent diode (SLD) 有权
    反射半导体光放大器（R-SOA）和超发光二极管（SLD）

    公开(公告)号：US08363314B2

    公开(公告)日：2013-01-29

    申请号：US12929970

    申请日：2011-02-28

    申请人： Su Hwan Oh ,  Sahnggi Park ,  Yongsoon Baek ,  Kwang-Ryong Oh

    发明人： Su Hwan Oh ,  Sahnggi Park ,  Yongsoon Baek ,  Kwang-Ryong Oh

    IPC分类号： H01S5/227

    CPC分类号： G02B6/1228 ,  G02B2006/121 ,  H01L33/0045 ,  H01S5/026 ,  H01S5/028 ,  H01S5/101 ,  H01S5/1014 ,  H01S5/227 ,  H01S5/50

    摘要： Provided are a reflective semiconductor optical amplifier (R-SOA) and a superluminescent diode (SLD). The R-SOA includes: a substrate; an optical waveguide including a lower clad layer, an active layer independent of the polarization of light, and an upper clad layer sequentially stacked on the substrate, the optical waveguide comprising linear, curved, and tapered waveguide areas; and a current blocking layer formed around the optical waveguide to block a flow of current out of the active layer, wherein the linear and curved waveguide areas have a single buried hetero (BH) structure, and the tapered waveguide area has a dual BH structure.

    摘要翻译： 提供了反射半导体光放大器（R-SOA）和超发光二极管（SLD）。 R-SOA包括：基板; 包括下包层，独立于光的偏振的有源层和顺序地堆叠在基板上的上包层的光波导，所述光波导包括线性，弯曲和锥形的波导区域; 以及形成在所述光波导周围的电流阻挡层，以阻挡所述有源层中的电流流动，其中所述线性和弯曲波导区域具有单个埋入异质（BH）结构，并且所述锥形波导区域具有双BH结构。

    Optical vision chip (OVC) and image recognition method using the same
    8.
    发明授权
    Optical vision chip (OVC) and image recognition method using the same 失效
    光学视觉芯片（OVC）和图像识别方法使用相同

    公开(公告)号：US08000537B2

    公开(公告)日：2011-08-16

    申请号：US11930507

    申请日：2007-10-31

    申请人： Sahnggi Park ,  Won Pil Yu ,  Kwang Ryong Oh

    发明人： Sahnggi Park ,  Won Pil Yu ,  Kwang Ryong Oh

    IPC分类号： G06K9/74

    CPC分类号： G06K9/74

    摘要： Provided are an optical vision chip (OVC) and an image recognition method using the OVC. The OVC includes: a first display displaying an object image; a second display displaying a standard model image; and an optical sensor optically or electrically coupling the object image and the standard model image respectively displayed on the first and second displays and outputting a difference between the object image and the standard model image as an electrical signal.

    摘要翻译： 提供了一种光学视觉芯片（OVC）和使用OVC的图像识别方法。 OVC包括：显示对象图像的第一显示; 显示标准模型图像的第二显示器; 以及光学或电学耦合分别显示在第一和第二显示器上的对象图像和标准模型图像的光学传感器，并且将对象图像和标准模型图像之间的差作为电信号输出。

    Frequency-tunable terahertz light source device
    9.
    发明授权
    Frequency-tunable terahertz light source device 失效
    频率可调太赫兹光源装置

    公开(公告)号：US07782909B2

    公开(公告)日：2010-08-24

    申请号：US12192527

    申请日：2008-08-15

    申请人： Kwang Ryong Oh ,  Jong Hoi Kim ,  Dong Churl Kim ,  Oh Kee Kwon ,  Ki Soo Kim ,  Ki Hong Yoon

    发明人： Kwang Ryong Oh ,  Jong Hoi Kim ,  Dong Churl Kim ,  Oh Kee Kwon ,  Ki Soo Kim ,  Ki Hong Yoon

    IPC分类号： H01S3/30

    CPC分类号： G02F1/3534 ,  G02F2203/13 ,  H01S1/02 ,  H01S5/141 ,  H01S5/4062 ,  H01S5/4087

    摘要： Provided is a frequency-tunable terahertz light source device. The frequency-tunable terahertz light source device satisfies a Littrow diffraction condition at a wavelength and simultaneously satisfies a Littman-Metcalf diffraction condition at another wavelength using a double diffraction grating having two grating periods. Thus, oscillations simultaneously occur at the two different wavelengths, such that a terahertz wave can be stably generated by beating of the two oscillation wavelengths. In addition, the frequency-tunable terahertz light source device can readily change a frequency up to several terahertz and can be fabricated in a small size.

    摘要翻译： 提供了一种频率可调的太赫兹光源装置。 频率可调谐的太赫兹光源装置在波长处满足Littrow衍射条件，并且使用具有两个光栅周期的双衍射光栅同时满足另一个波长的Littman-Metcalf衍射条件。 因此，振荡同时发生在两个不同的波长处，使得可以通过拍摄两个振荡波长来稳定地产生太赫兹波。 此外，频率可调谐的太赫兹光源装置可以容易地将频率改变到几个太赫兹，并且可以以小尺寸制造。