公开(公告)号：US20070133991A1

公开(公告)日：2007-06-14

申请号：US11606670

申请日：2006-11-29

申请人： Won Lee ,  Heuk Park ,  Kwang Kim

发明人： Won Lee ,  Heuk Park ,  Kwang Kim

IPC分类号： H04J14/00

CPC分类号： H04J14/007

摘要： Provided are an encoder and/or decoder for an OCDMA (optical code division multiple access) and a method thereof. The encoder and/or decoder includes: a demultiplexer outputting multi-wavelength optical signals through paths varying with a wavelength using a plurality of first fused couplers having different coupling coefficients; and a multiplexer selecting the signals of predetermined wavelengths out of output signals from the demultiplexer using a plurality of second fused couplers symmetric to the plurality of first fused couplers and generating a PN code corresponding to the selected wavelengths.

摘要翻译： 提供了一种用于OCDMA（光码分多址）的编码器和/或解码器及其方法。 编码器和/或解码器包括：解复用器，其通过使用具有不同耦合系数的多个第一熔接耦合器以波长变化的路径输出多波长光信号; 以及多路复用器，使用与所述多个第一融合耦合器对称的多个第二融合耦合器，从所述解复用器输出的输出信号中选择预定波长的信号，并产生对应于所选波长的PN码。

公开(公告)号：US20070097854A1

公开(公告)日：2007-05-03

申请号：US11399115

申请日：2006-04-05

申请人： Hwan Chung ,  Heuk Park ,  Kwang Kim

发明人： Hwan Chung ,  Heuk Park ,  Kwang Kim

IPC分类号： H04J11/00

CPC分类号： H04J14/005

摘要： Provided are an apparatus and a method for reducing a signal noise of an OCDMA receiver and an OCDMA receiver and method. The includes: a clock recovery unit extracting sine wave clock from an output signal of an OCDMA decoder including an MAI (multiple access interference) noise; a time gating unit separating an auto-correlation peak signal and the MAI noise from the output signal of the OCDMA decoder using the sine wave clock; and an optical interferometer removing an SI (signal interference) noise remaining in the auto-correlation peak signal.

摘要翻译： 提供了一种用于降低OCDMA接收机和OCDMA接收机的信号噪声的装置和方法以及方法。 包括：时钟恢复单元，从包括MAI（多址干扰）噪声的OCDMA解码器的输出信号提取正弦波时钟; 时间门控单元，使用正弦波时钟从OCDMA解码器的输出信号中分离自相关峰值信号和MAI噪声; 以及去除自相关峰值信号中残留的SI（信号干扰）噪声的光学干涉仪。

公开(公告)号：US20060098983A1

公开(公告)日：2006-05-11

申请号：US11077111

申请日：2005-03-09

申请人： Jin Han ,  Heuk Park ,  Kwang Kim

发明人： Jin Han ,  Heuk Park ,  Kwang Kim

IPC分类号： H04J14/02

CPC分类号： H04Q11/0005 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0221 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/0024

摘要： The optical add/drop multiplexer of the present invention includes an optical splitting means dividing a wavelength division multiplexed optical signal into a pass path and a drop path; a first wavelength selection switching means receiving the dropped optical signal, demultiplexing the received optical signal, and switching a specific wavelength to one drop port; a channel equalizing means blocking the dropped optical signal, and passing a signal of remaining. wavelengths therethrough while causing the intensity thereof to be uniform; a second wavelength selection switching means receiving a plurality of optical signals through respective input ports, demultiplexing the received optical signals, and switching a specific wavelength to one add port; and an optical coupling means recombining an optical signal passed through the channel equalizing means and the optical signal output from the second wavelength selection switch.

摘要翻译： 本发明的光分插复用器包括将波分复用光信号划分成通路和分路的光分路装置; 第一波长选择切换装置，接收丢弃的光信号，解复用接收到的光信号，并将特定波长切换到一个下降端口; 信道均衡装置阻止丢弃的光信号，并传递剩余的信号。 使其强度均匀地穿过其中; 第二波长选择切换装置，通过各个输入端口接收多个光信号，解复用接收到的光信号，并将特定波长切换到一个附加端口; 以及光耦合装置，重新组合通过信道均衡装置的光信号和从第二波长选择开关输出的光信号。

公开(公告)号：US20050141582A1

公开(公告)日：2005-06-30

申请号：US10880766

申请日：2004-06-28

申请人： Sang-Soo Lee ,  Heuk Park ,  Hyunwoo Cho ,  Sang-Kyu Lim ,  Je-Soo Ko

发明人： Sang-Soo Lee ,  Heuk Park ,  Hyunwoo Cho ,  Sang-Kyu Lim ,  Je-Soo Ko

IPC分类号： H04B10/04 ,  G02F2/00 ,  H01S3/067 ,  H01S3/097 ,  H01S3/30 ,  H03D9/00 ,  H04B10/145

CPC分类号： H01S3/302 ,  G02F2/002 ,  H01S3/067 ,  H03D9/00 ,  H04B10/50

摘要： An apparatus and a method for generating an optical carrier is disclosed. The apparatus includes: a light source generating a pump light; a SBS generator for stimulated Brillouin scattering the pump light to generate a stokes light from the light source; an attenuator for controlling an amplitude of the pump light from the light source to generate an amplitude controlled pump light; and a detector for heterodyne beating the stokes light and the amplitude controlled pump light to generate an optical carrier.

摘要翻译： 公开了一种用于产生光学载体的装置和方法。 该装置包括：产生泵浦光的光源; 用于受激布里渊的SBS发生器将泵浦光散射以产生来自光源的斯托克斯光; 衰减器，用于控制来自光源的泵浦光的振幅，以产生振幅控制的泵浦光; 以及用于外差打击斯托克斯光和振幅控制的泵浦光的检测器，以产生光学载体。

公开(公告)号：US06498802B1

公开(公告)日：2002-12-24

申请号：US09475118

申请日：1999-12-30

申请人： Hye-Yong Chu ,  Jeong-Ik Lee ,  Seong-Hyun Kim ,  Lee-Mi Do ,  Heuk Park ,  Do-Hoon Hwang ,  Tae-Hyoung Zyung

发明人： Hye-Yong Chu ,  Jeong-Ik Lee ,  Seong-Hyun Kim ,  Lee-Mi Do ,  Heuk Park ,  Do-Hoon Hwang ,  Tae-Hyoung Zyung

IPC分类号： H01S314

CPC分类号： B82Y20/00 ,  H01S5/0425 ,  H01S5/18341 ,  H01S5/18369 ,  H01S5/343 ,  H01S5/36

摘要： An organic micro-cavity lasers which can reduce an optical loss and derive the lasing by the electrical pumping is disclosed. The laser of the present invention has a bottom mirror layer formed on a substrate, a bottom electrode formed on the bottom mirror layer, an active layer formed on the bottom electrode, a top electrode formed on a peripheral portion of the active layer and a top mirror layer formed on the active layer except the peripheral portion. Therefore, the laser of the present invention can greatly reduce the optical loss since it has the bottom mirror layer, the active layer and the top mirror layer. Also, the injection of current can sufficiently accomplished because the top electrode having a ring shape is formed at the peripheral portion of the active layer so as to inject the current to the active layer.

摘要翻译： 公开了一种有机微腔激光器，其可以减少光学损耗并通过电泵浦导出激光。 本发明的激光器具有形成在基板上的底镜层，形成在底镜层上的底电极，形成在底电极上的有源层，形成在有源层周边部分上的顶电极和顶电极 除了外围部分之外，在活性层上形成的镜层。 因此，本发明的激光器由于具有底镜层，有源层和顶镜层，因此可以大大减少光损耗。 此外，由于在有源层的周边部分形成具有环形的顶部电极，以便将电流注入到有源层，所以可以充分地实现电流注入。

公开(公告)号：US06317247B1

公开(公告)日：2001-11-13

申请号：US09204218

申请日：1998-12-02

申请人： Choong Reul Yang ,  Wol Yon Hwang ,  Hyun Hah Hong ,  Sun Gyu Han ,  Heuk Park

发明人： Choong Reul Yang ,  Wol Yon Hwang ,  Hyun Hah Hong ,  Sun Gyu Han ,  Heuk Park

IPC分类号： G02F107

CPC分类号： G02F1/0123 ,  G02F2001/212

摘要： A bias voltage stabilizing method for an electricity-optical modulator based on an off-level sampling is disclosed. The method includes the steps of a first step for detecting an electric signal by feed-back an output optical signal of a MZ optical modulator, performing a sample and hold for an OFF level and converting the signal into a digital data, a second step for receiving the sample and hold data with respect to the OFF level, controlling a bias value by performing an up and down count so that a minimum operation level is maintained at near a zero level of an output optical signal based on a binary data and a current data value, and adjusting a bias value, and a third step for outputting a bias control voltage of an optical modulator by converting the bias value controlled by the up and down count into an analog signal, for thereby controlling an adaptive bias voltage irrespective of a traffic characteristic of a signal by selectively extracting an OFF level of an output light, measuring the thusly extracted level and minimizing the value for thereby controlling a bias voltage.

摘要翻译： 公开了一种基于离线采样的电光调制器的偏压稳定方法。 该方法包括以下步骤：第一步骤，用于通过反馈MZ光调制器的输出光信号来检测电信号，执行采样并保持OFF电平并将该信号转换成数字数据;第二步骤 接收采样并保持相对于OFF电平的数据，通过执行上下计数来控制偏置值，使得基于二进制数据和电流的最小操作电平保持在输出光信号的零电平附近 数据值和调整偏置值，以及第三步骤，用于通过将由上升和下调计数控制的偏置值转换为模拟信号来输出光调制器的偏置控制电压，从而控制自适应偏置电压，而不管 通过选择性地提取输出光的OFF电平，测量由此提取的电平并使该值最小化从而控制偏置电压，来产生信号的交通特性。