公开(公告)号：US07295784B2

公开(公告)日：2007-11-13

申请号：US10892890

申请日：2004-07-15

申请人： Jin Soo Han ,  Youn Seon Jang ,  Hyun Jae Lee

发明人： Jin Soo Han ,  Youn Seon Jang ,  Hyun Jae Lee

IPC分类号： H04B10/04

CPC分类号： G02F1/225 ,  G02F1/0121 ,  G02F2001/212 ,  G02F2201/126

摘要： The present invention relates to an apparatus and method for performing optical Differential Phase Shift Keying (DPSK) modulation, which transmits a phase difference between adjacent bits as information. The electrically band-limited optical DPSK modulating apparatus includes a light source, a Non-Return-to-Zero (NRZ) signal generator, a pre-coder, an electrical low pass filter, and a phase modulator. The NRZ signal generator generates a NRZ signal. The pre-coder codes the NRZ signal generated by the NRZ signal generator into a differential signal. The low pass “filter electrically limits a bandwidth of the differential signal obtained through the pre-coder. The phase modulator modulates an optical signal input from the light source into a DPSK signal using the differential signal having the bandwidth electrically limited by the low pass filter.

摘要翻译： 本发明涉及一种用于执行光差分相移键控（DPSK）调制的装置和方法，其将相邻位之间的相位差作为信息发送。 带电限制的光DPSK调制装置包括光源，非归零（NRZ）信号发生器，预编码器，电低通滤波器和相位调制器。 NRZ信号发生器产生NRZ信号。 预编码器将由NRZ信号发生器产生的NRZ信号编码成差分信号。 低通滤波器电气限制通过预编码器获得的差分信号的带宽，相位调制器使用具有由低通滤波器电气限制的带宽的差分信号，将从光源输入的光信号调制为DPSK信号 。

公开(公告)号：US07266309B2

公开(公告)日：2007-09-04

申请号：US10826015

申请日：2004-04-16

申请人： Youn Seon Jang ,  Kwang Joon Kim ,  Jin Soo Han

发明人： Youn Seon Jang ,  Kwang Joon Kim ,  Jin Soo Han

IPC分类号： H04B10/04 ,  H04B10/12

CPC分类号： G02F1/0123 ,  G02F1/225

摘要： The present invention relates to an apparatus and method for stabilizing a bias voltage for a pulse generating modulator, which can automatically detect an optimal bias voltage for an external modulator, which is used in RZ or CSRZ modulation of an optical transmission signal using NRZ data to generate a reference pulse optical signal, and maintain the optimal bias voltage. In the bias voltage stabilizing method of the present invention, an output signal of the external modulator, to which the bias voltage to be stabilized is applied, is detected, a drive clock signal applied to the external modulator is detected, a mean output value of the products obtained by the multiplication of the output signal and the clock signal is periodically examined, and the bias voltage is adjusted so that the mean output value becomes “0”.

摘要翻译： 本发明涉及一种用于稳定脉冲发生调制器的偏置电压的装置和方法，该装置和方法可以自动检测用于外部调制器的最佳偏置电压，其用于使用NRZ数据的光传输信号的RZ或CSRZ调制 产生参考脉冲光信号，并保持最佳偏置电压。 在本发明的偏压稳定化方法中，检测到施加了要稳定的偏置电压的外部调制器的输出信号，检测到施加到外部调制器的驱动时钟信号，平均输出值 周期性地检查通过乘以输出信号和时钟信号而获得的乘积，并调整偏置电压，使得平均输出值变为“0”。

公开(公告)号：US06545786B1

公开(公告)日：2003-04-08

申请号：US09493843

申请日：2000-01-28

申请人： Sang Jo Park ,  Youn Seon Jang ,  Phil Joo Moon ,  Dong Choon Lee

发明人： Sang Jo Park ,  Youn Seon Jang ,  Phil Joo Moon ,  Dong Choon Lee

IPC分类号： H04B1000

CPC分类号： H04Q11/0005 ,  G02B6/2861 ,  H04Q2011/002 ,  H04Q2011/0041

摘要： The present invention relates to a routing address encoder, a routing controller, and a routing switch, which decrease the number and the length of optical splitting and optical delay line at optical routing circuits in optical communication network. A routing address encoder in accordance with an embodiment of the present invention includes a pulse generator, an external modulator, an optical address generator, an address selection signal generator, an optical switch, and optical OR gate means. An optical routing circuit for decoding optical routing information received from optical communication network and routing optical signals on the basis of routing address is provided. An optical routing circuit includes an optical splitter, a routing controller, and a routing switch.

摘要翻译： 本发明涉及路由地址编码器，路由选择控制器和路由交换机，其减少光通信网络中光路由电路的光分路和光延迟线的数量和长度。 根据本发明实施例的路由地址编码器包括脉冲发生器，外部调制器，光地址发生器，地址选择信号发生器，光开关和光或门装置。 提供了一种用于解码从光通信网络接收的光路由信息和基于路由地址路由光信号的光路由电路。 光路由电路包括光分路器，路由控制器和路由交换机。

公开(公告)号：US07167493B2

公开(公告)日：2007-01-23

申请号：US10897362

申请日：2004-07-21

申请人： Jyung-Chan Lee ,  Joon-Ki Lee ,  Yun-Hee Cho ,  Seung-Il Myong ,  Youn-Seon Jang ,  Yool Kwon ,  Kwangjoon Kim ,  Moo-Jung Chu

发明人： Jyung-Chan Lee ,  Joon-Ki Lee ,  Yun-Hee Cho ,  Seung-Il Myong ,  Youn-Seon Jang ,  Yool Kwon ,  Kwangjoon Kim ,  Moo-Jung Chu

IPC分类号： H01S3/00 ,  H01S3/04 ,  H01S3/10 ,  H01S3/13 ,  H01S3/14

CPC分类号： H01S5/06804 ,  H01S5/02415 ,  H01S5/0265 ,  H01S5/042

摘要： The present invention relates to a method for revising a wavelength of the EML by controlling a working temperature based on arithmetic functional relations between the DC-Offset voltage and the wavelength and between the working temperature and the wavelength, and a computer-readable recording medium thereof. The method includes the steps of: re-setting initial values of a working temperature, a amplifying voltage and the DC-Offset voltage; determining a wavelength with respect to the re-set DC-Offset voltage based on a functional relation between the DC-Offset voltage and the wavelength of the EML; and determining the revising working temperature for the determined wavelength based on the functional relation between the working temperature and the wavelength of the EML, and re-setting the working temperature with the revising working temperature.

摘要翻译： 本发明涉及一种通过基于DC偏移电压与波长之间以及工作温度和波长之间的算术函数关系来控制工作温度来修改EML的波长的方法及其计算机可读记录介质 。 该方法包括以下步骤：重新设定工作温度，放大电压和DC偏移电压的初始值; 基于所述DC偏移电压和所述EML的波长之间的函数关系来确定相对于所述重新设定的DC偏移电压的波长; 并根据工作温度和EML波长之间的功能关系确定确定波长的修正工作温度，并根据修改工作温度重新设定工作温度。

公开(公告)号：US06765314B2

公开(公告)日：2004-07-20

申请号：US10040638

申请日：2002-01-09

申请人： Jeong Jin Cho ,  Byung Chan Lee ,  Chae Hong Lim ,  Youn Seon Jang ,  Jun Koo Lee

发明人： Jeong Jin Cho ,  Byung Chan Lee ,  Chae Hong Lim ,  Youn Seon Jang ,  Jun Koo Lee

IPC分类号： H02J100

CPC分类号： H02J9/062 ,  H02H1/04 ,  H02J7/345 ,  Y10T307/615

摘要： A power management system for semiconductor manufacturing prevents malfunctions of loading devices when transient power interruption occurs by maintaining power to the facilities for a period of time after the transient power interruption occurs. The system includes an emergency cutoff circuit, a first power controller, and a second power controller. The emergency cutoff circuit prevents trips in a power relay for one second at the time of transient power interruption. The first power controller discharges a DC voltage for a predetermined time period when AC power is not supplied through a power supply line thereto due to transient power interruption. The second power controller receives the DC voltage provided from the first power controller and discharges the DC voltage during a transient power interruption.

摘要翻译： 用于半导体制造的电源管理系统通过在发生瞬时电源中断之后的一段时间内维持设备的电力来防止在暂时断电时产生负载装置的故障。 该系统包括紧急切断电路，第一功率控制器和第二功率控制器。 紧急断路电路可以防止在瞬时断电时电源继电器跳闸1秒钟。 第一功率控制器在由于瞬时电源中断而不通过其电源线向其供电的情况下，将预定时间段的直流电压放电。 第二功率控制器接收从第一功率控制器提供的直流电压，并在瞬时电源中断期间放电直流电压。

公开(公告)号：US20050111502A1

公开(公告)日：2005-05-26

申请号：US10897362

申请日：2004-07-21

申请人： Jyung-Chan Lee ,  Joon-Ki Lee ,  Yun-Hee Cho ,  Seung-Il Myong ,  Youn-Seon Jang ,  Yool Kwon ,  Kwangjoon Kim ,  Moo-Jung Chu

发明人： Jyung-Chan Lee ,  Joon-Ki Lee ,  Yun-Hee Cho ,  Seung-Il Myong ,  Youn-Seon Jang ,  Yool Kwon ,  Kwangjoon Kim ,  Moo-Jung Chu

IPC分类号： H01S5/30 ,  H01S3/13 ,  H01S5/024 ,  H01S5/026 ,  H01S5/042 ,  H01S5/068

CPC分类号： H01S5/06804 ,  H01S5/02415 ,  H01S5/0265 ,  H01S5/042

摘要： The present invention relates to a method for revising a wavelength of the EML by controlling a working temperature based on arithmetic functional relations between the DC-Offset voltage and the wavelength and between the working temperature and the wavelength, and a computer-readable recording medium thereof. The method includes the steps of: re-setting initial values of a working temperature, a amplifying voltage and the DC-Offset voltage; determining a wavelength with respect to the re-set DC-Offset voltage based on a functional relation between the DC-Offset voltage and the wavelength of the EML; and determining the revising working temperature for the determined wavelength based on the functional relation between the working temperature and the wavelength of the EML, and re-setting the working temperature with the revising working temperature.

摘要翻译： 本发明涉及一种通过基于DC偏移电压与波长之间以及工作温度和波长之间的算术函数关系来控制工作温度来修改EML的波长的方法及其计算机可读记录介质 。 该方法包括以下步骤：重新设定工作温度，放大电压和DC偏移电压的初始值; 基于所述DC偏移电压和所述EML的波长之间的函数关系来确定相对于所述重新设定的DC偏移电压的波长; 并根据工作温度和EML波长之间的功能关系确定确定波长的修正工作温度，并根据修改工作温度重新设定工作温度。

公开(公告)号：US07324713B2

公开(公告)日：2008-01-29

申请号：US11143492

申请日：2005-06-03

申请人： Youn Seon Jang ,  Kwangjoon Kim

发明人： Youn Seon Jang ,  Kwangjoon Kim

IPC分类号： G02F1/225 ,  H04B10/08 ,  G02B26/00

CPC分类号： H04B10/677

摘要： An apparatus and method for controlling an optical interferometer are provided. The method includes setting a thermoelectric cooler (TEC) temperature of the optical interferometer to a room temperature, obtaining an optimal temperature using a difference between two output powers of the optical interferometer based on eye opening of the two output powers and applying an optimal heat voltage generating the optimal temperature to a delay adjuster of the optical interferometer, and performing dithering at the optimal temperature to stabilize the optimal heat voltage.

摘要翻译： 提供了一种用于控制光学干涉仪的装置和方法。 该方法包括将光干涉仪的热电冷却器（TEC）温度设定为室温，使用基于两个输出功率的眼睛打开的光干涉仪的两个输出功率之间的差来获得最佳温度，并施加最佳热电压 为光干涉仪的延迟调节器产生最佳温度，并在最佳温度下进行抖动以稳定最佳热电压。

公开(公告)号：US07075694B2

公开(公告)日：2006-07-11

申请号：US10863741

申请日：2004-06-07

申请人： Youn Seon Jang ,  Kwang Joon Kim ,  Jyung Chan Lee ,  Seung Il Myong

发明人： Youn Seon Jang ,  Kwang Joon Kim ,  Jyung Chan Lee ,  Seung Il Myong

IPC分类号： G02B26/00

CPC分类号： H04B10/50595 ,  G02F1/0123 ,  H04B10/505 ,  H04B10/5051 ,  H04B10/50575 ,  H04B10/508 ,  H04B10/5162 ,  H04B10/5165 ,  H04B2210/003

摘要： The present invention relates to an apparatus and method for automatically correcting a bias voltage for a carrier suppressed pulse generating modulator using the phase distribution of the output pulses, which automatically detects an optimal bias voltage for the carrier suppressed pulse generating modulator and stabilizes the bias voltage.In the bias voltage automatic correction method and apparatus of the present invention, an optimal bias voltage for the modulator is set to a bias voltage that is obtained when mean power of an optical signal output from the modulator is highest. The varying direction of the bias voltage is detected on the basis of the phase variations in the output optical signal of the modulator according to the bias voltage variations is detected, and the bias voltage is corrected oppositely to the varying direction of the bias voltage.

摘要翻译： 本发明涉及一种使用输出脉冲的相位分布自动校正载波抑制脉冲发生调制器的偏置电压的装置和方法，其自动检测载波抑制脉冲发生调制器的最佳偏置电压并稳定偏置电压 。 在本发明的偏置电压自动校正方法和装置中，将调制器的最佳偏置电压设置为当从调制器输出的光信号的平均功率最高时获得的偏置电压。 根据检测到的偏置电压变化，基于调制器的输出光信号的相位变化来检测偏置电压的变化方向，并且偏置电压与偏置电压的变化方向相反地校正。