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1. 发明申请

US20060133712A1 Apparatus for and method of controlling optical interferometer 失效
标题翻译：光干涉仪控制方法及控制方法
公开(公告)号：US20060133712A1
公开(公告)日：2006-06-22
申请号：US11143492
申请日：2005-06-03
申请人： Youn Jang , Kwangjoon Kim
发明人： Youn Jang , Kwangjoon Kim
IPC分类号： G02F1/01
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。

2. 发明申请

US20050117905A1 Optical transponder which can be reconfigured in accordance with various types of client networks 审中-公开
标题翻译：光转发器可以根据各种类型的客户端网络重新配置
公开(公告)号：US20050117905A1
公开(公告)日：2005-06-02
申请号：US10917095
申请日：2004-08-11
申请人： Joon Lee , Seung Myong , Yun Cho , Jyung Lee , Kwangjoon Kim , Yool Kwon , Youn Jang , Moo Chu
发明人： Joon Lee , Seung Myong , Yun Cho , Jyung Lee , Kwangjoon Kim , Yool Kwon , Youn Jang , Moo Chu
IPC分类号： H04B10/02 , H04J3/16 , H04J14/02
CPC分类号： H04J3/1611 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： An optical transponder which can be reconfigured in accordance with various types of client networks is provided. A client network interface transceiver includes a connector comprising a first connection terminal providing a unit transmitting and receiving a plurality of first clock signals, a plurality of second clock signals, and a plurality of data signals to and from the digital wrapper; a second connection terminal providing a unit transmitting and receiving a supervision/control signal and a CPU-related signal to and from the supervision/controlling unit; and a power source terminal providing a unit to which a power source is supplied. The client network interface transceiver multiplexes a client signal transmitted from the client network or demultiplexes a signal transmitted from an optical transmission network, outputs the client signal and the signal, and can be replaced through a front panel of the optical transponder line card in accordance with types of client networks.
摘要翻译：提供了可以根据各种类型的客户端网络重新配置的光学应答器。客户端网络接口收发器包括连接器，该连接器包括第一连接端子，该第一连接端子提供发送和接收来自数字包装器的多个第一时钟信号，多个第二时钟信号和多个数据信号的单元; 第二连接端子，提供向监控/控制单元发送和接收监视/控制信号和与CPU相关的信号的单元; 以及电源端子，其提供供电电源的单元。客户网络接口收发器多路复用从客户端网络发送的客户端信号或解复用从光传输网络发送的信号，输出客户端信号和信号，并且可以根据光接收机线卡的前面板更换客户端网络类型。

3. 发明申请

US20050135816A1 Apparatus and method for performing electrically band-limited optical differential phase shift keying modulation 失效
标题翻译：用于执行电限幅光学差分相移键控调制的装置和方法
公开(公告)号：US20050135816A1
公开(公告)日：2005-06-23
申请号：US10892890
申请日：2004-07-15
申请人： Jin Han , Youn Jang , Hyun Lee
发明人： Jin Han , Youn Jang , Hyun Lee
IPC分类号： H04L27/18 , G02F1/01 , G02F1/21 , G02F1/225 , G02F1/00
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限制的带宽的差分信号，将从光源输入的光信号调制成DPSK信号。

4. 发明申请

US20060133824A1 Apparatus for stabilizing wavelength of optical source for optical communications 审中-公开
标题翻译：用于稳定光通信光源波长的装置
公开(公告)号：US20060133824A1
公开(公告)日：2006-06-22
申请号：US11264384
申请日：2005-11-02
申请人： Seung Myong , Youn Jang , Kwang Kim , Hyun Lee
发明人： Seung Myong , Youn Jang , Kwang Kim , Hyun Lee
IPC分类号： H04B10/04
CPC分类号： H04B10/572
摘要： Provided is an apparatus for stabilizing a wavelength for optical communications which includes a digital control circuit unit and an analog control circuit unit to stabilize a wavelength that may be shifted at the time of driving an optical source for optical communications. The wavelength can be precisely controlled according to a modulation format using the optical source for optical communications, and thus performance can be stabilized.
摘要翻译：提供了一种用于稳定光通信的波长的装置，其包括数字控制电路单元和模拟控制电路单元，以稳定在驱动用于光通信的光源时可能偏移的波长。可以使用光通信用光源根据调制格式精确地控制波长，从而可以稳定性能。

5. 发明申请

US20050128556A1 Apparatus and method for stabilizing bias voltage for pulse generating modulator 失效
标题翻译：用于稳定脉冲发生调制器的偏置电压的装置和方法
公开(公告)号：US20050128556A1
公开(公告)日：2005-06-16
申请号：US10826015
申请日：2004-04-16
申请人： Youn Jang , Kwang Kim , Jin Han
发明人： Youn Jang , Kwang Kim , Jin Han
IPC分类号： H04B10/18 , G02F1/01 , G02F1/225 , G02F1/03
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”。

6. 发明申请

US20050128555A1 Apparatus and method for automatically correcting bias voltage for carrier suppressed pulse generating modulator 失效
标题翻译：用于自动校正载波抑制脉冲发生调制器偏置电压的装置和方法
公开(公告)号：US20050128555A1
公开(公告)日：2005-06-16
申请号：US10863741
申请日：2004-06-07
申请人： Youn Jang , Kwang Kim , Jyung Lee , Seung Myong
发明人： Youn Jang , Kwang Kim , Jyung Lee , Seung Myong
IPC分类号： H04B10/18 , G02B26/00 , G02F1/00 , G02F1/01 , H04B10/155
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。

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