公开(公告)号：US20130095600A1

公开(公告)日：2013-04-18

申请号：US13530370

申请日：2012-06-22

Applicant: Kyung Hyun KIM ,  Je Ha KIM ,  Hae-won CHOI ,  Dae-Hyung CHO ,  Yong-Duck CHUNG

Inventor： Kyung Hyun KIM ,  Je Ha KIM ,  Hae-won CHOI ,  Dae-Hyung CHO ,  Yong-Duck CHUNG

IPC: H01L31/075 ,  H01L31/18

CPC classification number: H01L31/0749 ,  H01L31/0322 ,  Y02E10/541 ,  Y02P70/521

Abstract: Methods for manufacturing a solar cell are provided. The method may include forming a lower electrode on a substrate, forming a light absorption layer on the lower electrode, forming a buffer layer on the light absorption layer, and forming a window layer on the buffer layer. The window layer may include an intrinsic layer and the transparent electrode which have electric characteristics different from each other, respectively. The intrinsic layer and the transparent electrode may be formed by a sputtering process using a single target formed of metal oxide doped with impurities.

Abstract translation: 提供太阳能电池的制造方法。 该方法可以包括在基板上形成下电极，在下电极上形成光吸收层，在光吸收层上形成缓冲层，在缓冲层上形成窗口层。 窗口层可以分别包括具有彼此不同的电特性的本征层和透明电极。 本征层和透明电极可以通过使用由掺杂有杂质的金属氧化物形成的单个靶的溅射工艺形成。

公开(公告)号：US20100263721A1

公开(公告)日：2010-10-21

申请号：US12684768

申请日：2010-01-08

Applicant: JungWook LIM ,  Sun Jin YUN ,  Seong Hyun LEE ,  Je Ha KIM

Inventor： JungWook LIM ,  Sun Jin YUN ,  Seong Hyun LEE ,  Je Ha KIM

IPC: H01L31/00

CPC classification number: H01L31/0392 ,  H01L31/02168 ,  H01L31/056 ,  H01L31/075 ,  Y02E10/52 ,  Y02E10/548

Abstract: Provided is a transparent solar cell. The transparent solar cell includes a transparent substrate, a selective transparent reflection layer, a first electrode, a photovoltaic conversion layer and a second electrode. The selective transparent reflection layer includes a first surface contacting the transparent substrate, and the second surface facing the first surface. The first electrode, the photovoltaic conversion layer and the second electrode are sequentially stacked on the second surface of the selective transparent reflection layer. The selective transparent reflection layer transmits at least a portion of wavelength of a visible ray and reflects an infrared ray.

Abstract translation: 提供透明的太阳能电池。 透明太阳能电池包括透明基板，选择性透明反射层，第一电极，光电转换层和第二电极。 选择性透明反射层包括与透明基板接触的第一表面和面向第一表面的第二表面。 第一电极，光电转换层和第二电极依次堆叠在选择性透明反射层的第二表面上。 选择性透明反射层透射可见光的波长的至少一部分并反射红外线。

公开(公告)号：US20080285978A1

公开(公告)日：2008-11-20

申请号：US12053694

申请日：2008-03-24

Applicant: Kwang Seong Choi ,  Yong Duck Chung ,  Jae Sik Sim ,  Jong Tae Moon ,  Hyun Kyu Yu ,  Je Ha Kim

Inventor： Kwang Seong Choi ,  Yong Duck Chung ,  Jae Sik Sim ,  Jong Tae Moon ,  Hyun Kyu Yu ,  Je Ha Kim

IPC: H04B10/00

CPC classification number: H04B10/25752 ,  H01L2224/45147 ,  H01L2224/48091 ,  H01L2924/00014

Abstract: Provided is an optical hybrid module in which an optical device, a filter, an amplifier and an antenna are hybrid-integrated, which includes: a silicon optical bench disposed on a substrate and having an optical fiber and an optical device; an amplifier disposed on the substrate and connected to the optical device disposed on the silicon optical bench to amplify a signal transmitted from the optical device; and an antenna disposed on the substrate to be connected to the amplifier and transmitting a signal amplified by the amplifier. Thus, a foot-print module may be embodied by disposing an antenna and a filter on a single- or multi-layer substrate and providing a bias required for the optical device and the amplifier through a solder ball. Also, due to the antenna and filter disposed on the substrate, an expensive connector is not needed, and thus a production costs can be reduced.

Abstract translation: 提供了一种光混合模块，其中光学装置，滤波器，放大器和天线是混合集成的，其包括：设置在基板上并具有光纤和光学装置的硅光学台; 放大器，设置在所述基板上并连接到设置在所述硅光学台上的所述光学装置，以放大从所述光学装置发送的信号; 以及设置在所述基板上以连接到所述放大器并且发射由所述放大器放大的信号的天线。 因此，可以通过在单层或多层衬底上设置天线和滤波器并通过焊球提供光学器件和放大器所需的偏置来实现脚印模块。 此外，由于设置在基板上的天线和滤波器，不需要昂贵的连接器，因此可以降低生产成本。

公开(公告)号：US20100246451A1

公开(公告)日：2010-09-30

申请号：US12676749

申请日：2008-05-23

Applicant: Yong Duck Chung ,  Kwang Seong Choi ,  Jae Sik Sim ,  Yong Hwan Kwon ,  Sung Bok Kim ,  Je Ha Kim

Inventor： Yong Duck Chung ,  Kwang Seong Choi ,  Jae Sik Sim ,  Yong Hwan Kwon ,  Sung Bok Kim ,  Je Ha Kim

IPC: H04W92/02 ,  H04L5/14

CPC classification number: H04B10/25759 ,  H04W88/10

Abstract: Provided are a method and device for separating and converting multiband signals. The device includes a photoelectric converter for converting an externally received optical signal into an electrical signal, a first switch for separating the converted electrical signal into signals according to frequency bands, a first mobile communication band-pass amplifier for amplifying a mobile communication network signal of the signals separated by the first switch, a broadband up-converter for up-converting a baseband signal of the signals separated by the first switch into a broadband signal, a first broadband amplifier for amplifying the broadband signal output from the broadband up-converter, and a transmitter for wirelessly transmitting the signals amplified by the first mobile communication band-pass amplifier and the first broadband amplifier.

Abstract translation: 提供了用于分离和转换多频带信号的方法和装置。 该装置包括用于将外部接收的光信号转换为电信号的光电转换器，用于根据频带将转换后的电信号分离为信号的第一开关，用于放大移动通信网络信号的第一移动通信带通放大器 由第一开关分离的信号，用于将由第一开关分离的信号的基带信号上变频为宽带信号的宽带上变频器，用于放大从宽带上变频器输出的宽带信号的第一宽带放大器， 以及用于无线地发送由第一移动通信带通放大器和第一宽带放大器放大的信号的发射机。

公开(公告)号：US07553092B2

公开(公告)日：2009-06-30

申请号：US11450743

申请日：2006-06-08

Applicant: Kwang Seong Choi ,  Yong Duck Chung ,  Young Shik Kang ,  Dong Suk Jun ,  Je Ha Kim ,  Jong Tae Moon

Inventor： Kwang Seong Choi ,  Yong Duck Chung ,  Young Shik Kang ,  Dong Suk Jun ,  Je Ha Kim ,  Jong Tae Moon

IPC: G02B6/36

CPC classification number: G02F1/0121 ,  G02B6/4201 ,  G02B6/4279 ,  H01L2224/48091 ,  H01L2924/3011 ,  H01L2924/00014 ,  H01L2924/00

Abstract: Provided is an optical module used in a communication system employing a radio over fiber (ROF) technology delivering a radio frequency (RF) signal through an optical fiber. The optical module includes: an optical device; a signal line for transporting a radio frequency (RF) signal input from an external circuit to the optical device; and a resistor separately disposed from the signal line and having one end connected with the optical device, wherein the input impedance seen from the signal line is matched by the resistor. A bias voltage supplied to operate the optical device is applied through an inductor connected to the signal line between the optical device and a filter. Here, the filter formed by a pattern of the signal line prevents the bias voltage from being supplied to the external circuit. In order to amplify the RF signal input from the external circuit, an amplifier may be connected between the external circuit and the filter.

Abstract translation: 提供了一种用于通过光纤传送射频（RF）信号的无线电光纤（ROF）技术的通信系统中的光学模块。 光学模块包括：光学装置; 用于将从外部电路输入的射频（RF）信号传送到光学装置的信号线; 以及与信号线分开设置并且具有与光学装置连接的一端的电阻，其中从信号线看到的输入阻抗由电阻器匹配。 提供用于操作光学器件的偏置电压通过连接到光学器件和滤光器之间的信号线的电感器施加。 这里，由信号线的图案形成的滤波器防止偏置电压被提供给外部电路。 为了放大从外部电路输入的RF信号，可以在外部电路和滤波器之间连接放大器。

公开(公告)号：US06724799B2

公开(公告)日：2004-04-20

申请号：US10177955

申请日：2002-06-20

Applicant: Sang-wan Ryu ,  Je-ha Kim

Inventor： Sang-wan Ryu ,  Je-ha Kim

IPC: H01S308

CPC classification number: H01S5/146 ,  H01S5/0224 ,  H01S5/02248 ,  H01S5/06256 ,  H01S5/1014

Abstract: A wavelength tunable laser light source necessary for a Wavelength Division Multiplexing (WDM)-based optical communication system, and more particularly, a wavelength tunable laser light source for maintaining a stable wavelength without a wavelength locker is provided. The wavelength tunable laser includes an optical fiber and a semiconductor device. The optical fiber can implement multiple reflection peaks. The semiconductor device includes a mode size converter section, a gain section and a DBR mirror section. One facet of the semiconductor device, which is adjacent to the optical fiber, has an antireflection coating layer. Therefore, the wavelength tunable laser based on an optical fiber containing multiple reflection peaks can maintain excellent wavelength stability insensitive to current injection, temperature, and environments without a wavelength locker.

Abstract translation: 提供了一种用于基于波分复用（WDM）的光通信系统所需的波长可调激光光源，更具体地，提供了用于在没有波长锁定器的情况下保持稳定波长的波长可调激光光源。 波长可调激光器包括光纤和半导体器件。 光纤可以实现多个反射峰。 半导体器件包括模式尺寸转换器部分，增益部分和DBR反射镜部分。 与光纤相邻的半导体器件的一个面具有抗反射涂层。 因此，基于含有多个反射峰的光纤的波长可调激光器可以保持对电流注入，温度和环境无敏感的优良波长稳定性，而不需要波长锁定器。

公开(公告)号：US06594298B2

公开(公告)日：2003-07-15

申请号：US10003294

申请日：2001-12-06

Applicant: Sang-Wan Ryu ,  Je Ha Kim

Inventor： Sang-Wan Ryu ,  Je Ha Kim

IPC: H01S319

CPC classification number: H01S5/12 ,  H01S5/1209 ,  H01S5/1215 ,  H01S5/4031 ,  H01S5/4087

Abstract: A laser resonator is implemented by using the −1-st order reflection peaks of a sampled grating so that the multi-wavelength single mode light source array can be manufactured easily and economically. A multi-wavelength semiconductor laser array comprises a substrate; a plurality of laser stripes arranged with a predetermined space on the substrate, each being divided into two sections; a multiplicity of asymmetric sampled gratings distributed with sampling periods different from each other on the bottom of each active layer; and a number of effective refractive index changing layers, each arranged on one section of each laser stripe to make the Bragg wavelengths different at the two sections.

公开(公告)号：US06392781B1

公开(公告)日：2002-05-21

申请号：US09498610

申请日：2000-02-04

Applicant: Je Ha Kim ,  Chan Yong Park ,  Kwang Eui Pyun

Inventor： Je Ha Kim ,  Chan Yong Park ,  Kwang Eui Pyun

IPC: G02F103

CPC classification number: B82Y20/00 ,  G02F1/01708

Abstract: The present invention relates to an electrical field absorbing semiconductor optical modulator, more particularly, to a high speed semiconductor optical modulator and a fabricating method thereof. The present invention includes a high speed semiconductor optical modulator, the optical modulator formed by stacking an n-type light-wave guiding layer, a light absorbing layer, a p-type light-wave guiding layer, a p-type clad layer, and a p-type ohmic contact layer on a substrate successively, the optical modulator having a ridge structure wherein the optical modulator is an electric-field absorbing type, and wherein width W3 of the light absorbing layer is less than the width W1 of the p-type ohmic contact layer. Accordingly, the present invention enables to provide high speed optical modulation of tens of giga rate of which modulating characteristics are excellent by reducing contact resistance and capacitance, which are the major problems of ruining the characteristics of an optical modulator, simultaneously.

Abstract translation: 本发明涉及一种电场吸收半导体光调制器，更具体地涉及一种高速半导体光调制器及其制造方法。 本发明包括高速半导体光调制器，通过堆叠n型光波导层，光吸收层，p型光波导层，p型覆层和 基板上的p型欧姆接触层，其光调制器具有脊结构，其中光调制器是电场吸收型，并且其中光吸收层的宽度W3小于p型欧姆接触层的宽度W1， 型欧姆接触层。 因此，本发明能够通过降低接触电阻和电容来提供几十兆比特的高速光调制，其中调制特性同时是破坏光调制器特性的主要问题。

公开(公告)号：US6034348A

公开(公告)日：2000-03-07

申请号：US932546

申请日：1997-09-17

Applicant: Je-Ha Kim ,  Seok-Kil Han ,  Kwang-Yong Kang

Inventor： Je-Ha Kim ,  Seok-Kil Han ,  Kwang-Yong Kang

IPC: H01L21/3065 ,  B23K26/06 ,  B23K26/00

CPC classification number: B23K26/0665 ,  B23K26/06 ,  B23K26/064 ,  B23K26/0648

Abstract: A micro etching system using laser ablation includes a laser generator, an optical fiber waveguide, a laser beam focusing device and a sample platform. The laser generator generates an ultraviolet beam, and the optical fiber waveguide carries the laser beam radiated from the laser generator to the material to be etched. The focusing device is provided between the laser generator and optical fiber waveguide and serves to concentrate the laser beam into the optical fiber. The sample platform controls the position of the material to be etched so that the material is etched at a predetermined angle by the beam emitted from the outlet of the optical fiber waveguide.

Abstract translation: 使用激光烧蚀的微蚀刻系统包括激光发生器，光纤波导，激光束聚焦装置和样品平台。 激光发生器产生紫外光束，并且光纤波导将从激光发生器辐射的激光束传送到待蚀刻的材料。 聚焦装置设置在激光发生器和光纤波导之间，用于将激光束集中到光纤中。 样品平台控制要蚀刻的材料的位置，以便通过从光纤波导的出口发射的光束以预定的角度蚀刻材料。

公开(公告)号：US5824953A

公开(公告)日：1998-10-20

申请号：US708682

申请日：1996-09-05

Applicant: Seok-Kil Han ,  Kwang-Yong Kang ,  Je-Ha Kim

Inventor： Seok-Kil Han ,  Kwang-Yong Kang ,  Je-Ha Kim

IPC: H01R9/05 ,  G01R1/20 ,  H01R43/00 ,  H05K9/00

CPC classification number: G01R1/20

Abstract: A coaxial connector for microwave and millimeter wave measurement can be used by attachment to a vacuum chamber for instrumentation when measuring a high frequency characteristic for various electronic devices at low temperature. The coaxial connector connects microwave instrumenting equipment to a device to be tested within vacuum chamber (e.g., so as to measure a low temperature and high frequency characteristic for a high frequency device). It includes a support plate for attachment to the vacuum chamber and a support screw to prevent the coaxial connector from rotating. The support screw is of hexagonal shape in the exemplary embodiment and is arranged to one side on the center of the support plate. A coaxial cable transmits the measured signal and is extended to pass through the center of the support plate and support screw, and a V-shape connector on each end of the cable for respectively coupling between a fixed sample stand in the vacuum chamber and the microwave instrument equipment.

Abstract translation: 用于微波和毫米波测量的同轴连接器可以在测量低温各种电子设备的高频特性时通过连接到用于仪器的真空室来使用。 同轴连接器将微波仪器设备连接到真空室内要测试的设备（例如，测量高频设备的低温和高频特性）。 它包括用于附接到真空室的支撑板和用于防止同轴连接器旋转的支撑螺钉。 在示例性实施例中，支撑螺钉为六角形，并且布置在支撑板的中心的一侧。 同轴电缆传输测量信号并延伸穿过支撑板和支撑螺钉的中心，以及电缆每端的V形连接器，用于分别耦合在真空室中的固定样品台和微波 仪器设备。