公开(公告)号：US07274875B2

公开(公告)日：2007-09-25

申请号：US10723508

申请日：2003-11-25

申请人： Ji Wook Youn ,  Hyun Jae Lee ,  Yool Kwon

发明人： Ji Wook Youn ,  Hyun Jae Lee ,  Yool Kwon

IPC分类号： H04B10/08 ,  H04B17/00 ,  H04J14/02

CPC分类号： H04B10/07955 ,  H04B10/296

摘要： An optical channel power equalizer for equalizing the per-channel power levels of a multi-channel optical signal is provided. The channel power equalizer includes an optical spectrum measurement unit that extracts a portion of the amplified optical signal and measures the per-channel power levels of the extracted optical signal; a controller that compares the measured power levels with a predetermined reference value, and determines to output the degrees of attenuation per channel based on differences between the measured per-channel power levels and the reference value; and a per-channel optical attenuation unit that attenuates the per-channel power levels of a plurality of input optical signals based on the degrees of attenuation and outputs the attenuated optical signals as the plurality of channels.

摘要翻译： 提供了用于均衡多通道光信号的每通道功率电平的光信道功率均衡器。 信道功率均衡器包括光谱测量单元，其提取放大的光信号的一部分并测量所提取的光信号的每通道功率电平; 控制器，其将测量的功率电平与预定参考值进行比较，并且基于测量的每通道功率电平与参考值之间的差异确定输出每个通道的衰减程度; 以及每通道光衰减单元，其基于衰减程度衰减多个输入光信号的每通道功率电平，并将衰减的光信号作为多个通道输出。

公开(公告)号：US07251963B2

公开(公告)日：2007-08-07

申请号：US10670785

申请日：2003-09-26

申请人： Kwang Soo Kim ,  Jae Moon Kim ,  Sam Je Park ,  Hyun Jae Lee

发明人： Kwang Soo Kim ,  Jae Moon Kim ,  Sam Je Park ,  Hyun Jae Lee

IPC分类号： D06B3/00 ,  D06B3/20 ,  D06F17/00

CPC分类号： D06F37/266 ,  D06F37/267

摘要： A drum-type washing machine employs a gasket water draining hose to enable used water to be discharged via the drainpipe, immediately following a washing or rinsing step. The drum-type washing machine includes a cabinet having a door; a tub for containing water, the tub having an entrance corresponding to the door of the cabinet; a gasket, connecting the door of the cabinet to the entrance of the tub, to prevent water contained in the tub from leaking outside the tub, the gasket having a first orifice provided at a bottom point thereof; a drainpipe, communicating with the tub, to discharge water contained in the tub, the drainpipe having a second orifice provided at one side thereof; and a water draining hose, communicating the first orifice with the second orifice, to discharge water via the drainpipe.

摘要翻译： 滚筒洗衣机采用衬垫排水软管，以便在洗涤或冲洗步骤之后立即通过排水管排出废水。 滚筒洗衣机包括具有门的机壳; 用于容纳水的桶，所述桶具有对应于所述柜门的入口; 将所述机壳的门连接到所述桶的入口的垫圈，以防止容纳在所述桶中的水泄漏在所述桶的外部，所述垫圈具有设置在其底点处的第一孔; 排水管，其与所述桶连通，以排放容纳在所述桶中的水，所述排水管具有设置在其一侧的第二孔; 以及排水软管，其将第一孔与第二孔连通，通过排水管排出水。

公开(公告)号：US07242834B2

公开(公告)日：2007-07-10

申请号：US10903056

申请日：2004-07-30

申请人： Won Kyoung Lee ,  Heuk Park ,  Hyun Jae Lee

发明人： Won Kyoung Lee ,  Heuk Park ,  Hyun Jae Lee

IPC分类号： G02B6/02 ,  G02B6/00

CPC分类号： G02B6/02028 ,  G02B6/02276 ,  G02B6/0281 ,  G02B6/03633 ,  G02B6/03644 ,  G02F1/395 ,  G02F2001/392

摘要： Provided is a dispersion-shifted fiber for an optical parametric amplifier. The dispersion-shifted fiber is a silica-based optical fiber and has a large nonlinear coefficient and a small effective area. The dispersion-shifted fiber also reduces a bending loss and a splice loss due to a mode field diameter difference between it and a conventional single mode fiber. For this, the dispersion-shifted fiber comprises a rectangular core with a very small radius and a high refractive index, a depressed inner clad, and an outer clad with a ring. The core and/or the inner clad are/is doped with a heavy metal.

摘要翻译： 提供了一种用于光学参量放大器的色散位移光纤。 色散位移光纤是一种二氧化硅基光纤，具有非线性系数大，有效面积小。 色散位移光纤还减少了由于其与常规单模光纤之间的模场直径差导致的弯曲损耗和接合损耗。 为此，色散位移光纤包括具有非常小的半径和高折射率的矩形芯，凹陷的内包层和具有环的外包层。 芯和/或内包层掺杂有重金属。

公开(公告)号：US07230958B2

公开(公告)日：2007-06-12

申请号：US10835225

申请日：2004-04-28

申请人： Sun Hyok Chang ,  Hee Sang Chung ,  Jin Soo Han ,  Ji Sung Jung ,  Heuk Park ,  Won Kyoung Lee ,  Hyun Jae Lee

发明人： Sun Hyok Chang ,  Hee Sang Chung ,  Jin Soo Han ,  Ji Sung Jung ,  Heuk Park ,  Won Kyoung Lee ,  Hyun Jae Lee

IPC分类号： H01S3/30

CPC分类号： H01S3/302 ,  H01S3/06754 ,  H01S3/094076 ,  H01S3/094096 ,  H01S3/1301 ,  H01S3/1305

摘要： Provided are a Raman amplifier and a Raman pumping method. A light source unit outputs a pumping light having a wavelength that periodically changes. A light intensity control unit varies a light intensity of the pumping light using the pumping light to improve the gain flatness of a Raman gain. A control unit directs the light intensity control unit to control the light intensity of the pumping light in synchronization with changes in the wavelength of the pumping light.

摘要翻译： 提供了拉曼放大器和拉曼泵浦方法。 光源单元输出具有周期性变化的波长的泵浦光。 光强度控制单元使用泵浦光来改变泵浦光的光强度，以提高拉曼增益的增益平坦度。 控制单元引导光强度控制单元与泵浦光的波长的变化同步地控制泵浦光的光强度。

公开(公告)号：US07158288B2

公开(公告)日：2007-01-02

申请号：US10896347

申请日：2004-07-20

申请人： Han Hyub Lee ,  Donghan Lee ,  Hee Sang Chung ,  Hyun Jae Lee

发明人： Han Hyub Lee ,  Donghan Lee ,  Hee Sang Chung ,  Hyun Jae Lee

IPC分类号： H01S3/00

CPC分类号： H04B10/296 ,  H01S3/0064 ,  H01S3/067 ,  H01S3/0677 ,  H01S3/094023 ,  H01S3/0941 ,  H01S3/1608

摘要： A long-wavelength band (L-band) optical amplifier capable of maintaining a gain constant, thereby providing a stable optical output even when an optical power or a wavelength of a signal input thereto changes. The optical amplifier includes an amplifier which amplifies an input signal, and an amplified spontaneous emission (ASE) reflector which reflects backward ASE generated by the amplifier so that the backward ASE is fed back to the amplifier.

摘要翻译： 即使当光功率或输入信号的波长发生变化时，能够保持增益恒定的长波长带（L波段）光放大器，从而提供稳定的光输出。 光放大器包括放大输入信号的放大器和放大的自发发射（ASE）反射器，其反射由放大器产生的反向ASE，以使反向ASE反馈到放大器。

公开(公告)号：US06693734B2

公开(公告)日：2004-02-17

申请号：US10087874

申请日：2002-03-01

申请人： Myong Seung Il ,  Kim Bong Kyu ,  Lee Jyung Chan ,  Hyun Jae Lee

发明人： Myong Seung Il ,  Kim Bong Kyu ,  Lee Jyung Chan ,  Hyun Jae Lee

IPC分类号： G02F103

CPC分类号： G02F1/0123 ,  G02F1/035 ,  G02F1/225

摘要： A control device for controlling an electro-optic modulator which receives an optical input signal, modulates the optical input signal with an electrical input signal and a bias voltage signal, and outputs the modulated optical signal is provided. The control device includes: a light source for providing the optical input signal used for the optical modulation to the electro-optic modulator; an optical input measuring unit for measuring the intensity of the optical input signal outputted by the light source; an optical output measuring unit for measuring the intensity of the optical output signal outputted by the electro-optic modulator; and a controller for adjusting the bias voltage signal and the gain of the electrical input signal depending on the intensity of the optical input signal and the optical output signal measured respectively by the optical input measuring unit and the optical output measuring unit. The control device can control the electro-optic modulator by initializing bias voltage and gain of an electrical signal so that the electro-optic modulator can operate in optimized conditions, thus preventing distortion of the optical output signal and obtaining the maximum extinction ratio. In addition, the control device can adjust the bias voltage adaptively during the operation of the electro-optic modulator.

摘要翻译： 一种用于控制接收光输入信号的电光调制器的控制装置，用电输入信号和偏置电压信号调制光输入信号，并输出调制的光信号。 控制装置包括：用于向光电调制器提供用于光调制的光输入信号的光源; 光输入测量单元，用于测量由光源输出的光输入信号的强度; 光输出测量单元，用于测量由电光调制器输出的光输出信号的强度; 以及控制器，用于根据由光输入测量单元和光输出测量单元分别测量的光输入信号和光输出信号的强度来调整偏置电压信号和电输入信号的增益。 控制装置可以通过初始化偏置电压和电信号的增益来控制电光调制器，使得电光调制器可以在优化的条件下操作，从而防止光输出信号的失真并获得最大消光比。 此外，控制装置可以在电光调制器的操作期间自适应地调整偏置电压。

公开(公告)号：US06369926B1

公开(公告)日：2002-04-09

申请号：US09136714

申请日：1998-08-19

申请人： Gap Youl Lyu ,  Hyun Jae Lee ,  Seo Yeon Park ,  Jong Hyun Lee

发明人： Gap Youl Lyu ,  Hyun Jae Lee ,  Seo Yeon Park ,  Jong Hyun Lee

IPC分类号： H04B1004

CPC分类号： H04B10/506 ,  H04B10/564 ,  H04B10/572

摘要： A multichannel light source wavelength and strength stabilizing apparatus and a method thereof are disclosed. The apparatus includes a first proportional/integrator for receiving an output signal from the error detector, detecting a value proportional thereto, integrating the detected proportional value, generating a signal corresponding to the optimum feedback circuit, and outputting to the temperature controller; a current controller for providing the current capable of controlling the light strength in accordance with the signal inputted to the light source and stabilizing the light strength; a second optical coupling unit for dividing the output signal from the first optical coupling unit; a photodetector for converting the strength of a light among the output signals from the second optical coupling unit into an electrical signal; and a second proportional/integration unit for detecting a proportional value of the output signal from the optical detector, integrating the detected proportional value, generating a signal corresponding to the optimum feedback circuit, and outputting to the current controller.

摘要翻译： 公开了一种多通道光源波长和强度稳定装置及其方法。 该装置包括：第一比例/积分器，用于接收来自误差检测器的输出信号，检测与其成比例的值，积分检测到的比例值，产生对应于最佳反馈电路的信号，并输出到温度控制器; 电流控制器，用于根据输入到光源的信号提供能够控制光强度的电流并稳定光强度; 第二光耦合单元，用于分割来自第一光耦合单元的输出信号; 用于将来自第二光耦合单元的输出信号中的光的强度转换为电信号的光电检测器; 以及第二比例/积分单元，用于检测来自光学检测器的输出信号的比例值，积分检测到的比例值，产生对应于最佳反馈电路的信号，并输出到电流控制器。

公开(公告)号：US6118562A

公开(公告)日：2000-09-12

申请号：US986267

申请日：1997-12-05

申请人： Hyun Jae Lee ,  Gap Youl Lyu ,  Seo Yeon Park

发明人： Hyun Jae Lee ,  Gap Youl Lyu ,  Seo Yeon Park

IPC分类号： H04J14/02 ,  H01S5/0687 ,  H01S5/40 ,  H04B10/50 ,  H04B10/572

CPC分类号： H01S5/0687 ,  H04B10/506 ,  H04B10/572 ,  H01S5/4087

摘要： A wavelength aligning apparatus using an arrayed waveguide grating (AWG), and particularly, to a wavelength aligning apparatus using an arrayed waveguide grating which is capable of aligning optical sources using a transmission characteristic of an arrayed waveguide grating in a wavelength alignment method. The apparatus includes a signal generator for applying a signal spaced-apart at a predetermined interval near a predetermined frequency to a bias current of the light source and dithering a central wavelength of each light source, an arrayed waveguide grating for providing a reference wavelength causing a variation difference from the central portion due to a dithering of the central wavelength, a temperature controller for determining a reference wave length by constantly maintaining a temperature of the arrayed waveguide grating, an optical fiber coupler disposed in an output terminal of the arrayed waveguide grating for dividing the signal into a transmission signal and an incoming signal, a plurality of locking amplifiers and a proportional/integration/differentiating unit for computing a bias current corresponding to the detected error signal, and a superposing unit for superposing the computed bias current and a signal from the signal generator for output to the laser diode driver.

摘要翻译： 使用阵列波导光栅（AWG）的波长对准装置，特别涉及使用阵列波导光栅的波长对准装置，该阵列波导光栅能够使用波长对准方法中的阵列波导光栅的透射特性对准光源。 该装置包括：信号发生器，用于以预定频率以预定间隔间隔地附加到光源的偏置电流并抖动每个光源的中心波长的信号发生器，用于提供参考波长的阵列波导光栅， 由于中心波长的抖动引起的与中心部分的变化差异，用于通过不断维持阵列波导光栅的温度来确定参考波长的温度控制器，布置在阵列波导光栅的输出端中的光纤耦合器 将信号分成传输信号和输入信号，多个锁定放大器和用于计算与检测到的误差信号相对应的偏置电流的比例/积分/微分单元，以及叠加单元，用于叠加计算出的偏置电流和信号 从信号发生器输出到激光二极管驱动 r。

公开(公告)号：US20130195454A1

公开(公告)日：2013-08-01

申请号：US13617622

申请日：2012-09-14

申请人： Hyun Jae LEE

发明人： Hyun Jae LEE

IPC分类号： H04B10/20

CPC分类号： H04J14/0283 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/022 ,  H04J14/0238 ,  H04J14/0286

摘要： Disclosed are a wavelength multi-casting method and device in a multi-ring network, and more particularly, a wavelength multi-casting method and device in a multi-ring network capable of configuring an economical network. The wavelength multi-casting method in the multi-ring network according to the exemplary embodiment of the present invention includes: receiving, by one node, optical signals from other nodes within a ring network to which the node belongs; and multi-casting, by the node, an optical wavelength to neighboring nodes by a scheme of dropping and continuing the transmitted optical signals.

摘要翻译： 本发明公开了一种多环网络中的波长多铸造方法和装置，特别是能够构成经济网络的多环网络中的波长多铸造方法和装置。 根据本发明的示例性实施例的多环网络中的波长多播方法包括：由一个节点接收来自节点所属的环网内的其他节点的光信号; 并且通过丢弃并继续传输的光信号的方案，通过该节点多次投射到相邻节点的光波长。

公开(公告)号：US20130070334A1

公开(公告)日：2013-03-21

申请号：US13608404

申请日：2012-09-10

申请人： Kwang Soo KIM ,  Chang Hoon CHOI ,  In Ho SEO ,  Hyun Jae LEE ,  Myoung Ki AHN ,  Byeong Hwan JEON ,  Sung Jin LEE

发明人： Kwang Soo KIM ,  Chang Hoon CHOI ,  In Ho SEO ,  Hyun Jae LEE ,  Myoung Ki AHN ,  Byeong Hwan JEON ,  Sung Jin LEE

IPC分类号： G02B21/08 ,  G02B21/06

CPC分类号： G02B21/245 ,  G02B7/38 ,  G02B27/106 ,  G02B27/14

摘要： A focusing device for an optical microscope may include a light emitting unit configured to emit laser light having a specific wavelength, a wedge mirror configured to enable the emitted laser light to be incident on a plurality of locations of a surface of a specimen, first and second light receiving units configured to detect an amount of laser light reflected from the surface of the specimen, a spatial filter configured to eliminate out-of-focus light from light beams reflected from the surface of the specimen and to detect an amount of in-focus light, and a control unit configured to generate a control signal used to carry out focus adjustment of the optical microscope using a plurality of light-amount information detected by the first and second light receiving units and the spatial filter.

摘要翻译： 用于光学显微镜的聚焦装置可以包括被配置为发射具有特定波长的激光的发光单元，配置成使得发射的激光能够入射到样品表面的多个位置的楔形镜，首先和 第二光接收单元，被配置为检测从所述检体的表面反射的激光的量;空间滤波器，被配置为消除从所述样本的表面反射的光束的离焦光， 以及控制单元，被配置为使用由第一和第二光接收单元和空间滤波器检测的多个光量信息产生用于执行光学显微镜的焦点调整的控制信号。