公开(公告)号：US06212168B1

公开(公告)日：2001-04-03

申请号：US08961230

申请日：1997-10-30

申请人： Woon Seob So ,  Sung Mo Yang ,  Seung Han Lee ,  Jin Tae Kim ,  Hae Geun Kim

发明人： Woon Seob So ,  Sung Mo Yang ,  Seung Han Lee ,  Jin Tae Kim ,  Hae Geun Kim

IPC分类号： H04J314

CPC分类号： H04L49/3081 ,  H04L43/50 ,  H04L2012/5625 ,  H04L2012/5628 ,  H04Q11/0478

摘要： The present invention relates to a subscriber control module having a test apparatus suitable for testing internal routes in an Asynchronous Transfer Mode ATM exchange system for improved reliability and effective maintenance thereof. A subscriber control module having testing functions makes it possible that internal whole routes in the exchange system under the control by maintenance control module inside the system can be tested through the use of subscriber switching network and connection switching network. Further, a test apparatus of the present invention placed inside the exchange system can test ATM subscribers with individually different rates, configured in such a way to be identical with boards used in the exchange system so that the test apparatus can be installed inside the exchange system.

摘要翻译： 本发明涉及一种具有测试装置的用户控制模块，该测试装置适用于测试异步传输模式ATM交换系统中的内部路由，以提高其可靠性和有效维护。 具有测试功能的用户控制模块使得可以通过使用用户交换网络和连接交换网络来测试在系统内的维护控制模块控制的交换系统中的内部整个路由。 此外，本发明的设置在交换系统内部的测试装置可以以单独不同的速率来测试ATM用户，其配置方式与交换系统中使用的板相同，使得测试设备可以安装在交换系统内 。

公开(公告)号：US06888975B2

公开(公告)日：2005-05-03

申请号：US10205107

申请日：2002-07-24

申请人： Byoung-Whi Kim ,  Kwangjoon Kim ,  Seong-Soon Joo ,  Hae Geun Kim ,  Jong Hyun Lee

发明人： Byoung-Whi Kim ,  Kwangjoon Kim ,  Seong-Soon Joo ,  Hae Geun Kim ,  Jong Hyun Lee

IPC分类号： G02B6/35 ,  H04Q11/00 ,  G02B6/26

CPC分类号： H04Q11/0005 ,  H04Q2011/0075

摘要： A multi-dimensional optical cross-connect switching system. The system is capable of multi-dimensionally using wavelength resources, such as in the forms of optical fibers, optical wavelength bands and optical wavelengths. The system can three-dimensionally use the wavelength resources by being matched with an optical transport network through the optical fiber layer, optical wavelength band layer and optical wavelength layer. In addition, the multi-dimentional optical cross-connect switching system is constructed in such a way that two cross-connect switches are symmetrically arranged and an insertion/extraction switch is added to switch addition/dropping links between the two switches.

摘要翻译： 一种多维光交叉连接交换系统。 该系统能够多维地使用波长资源，例如以光纤，光波长带和光波长的形式。 该系统可以通过光纤层，光波长带和光波长层与光传输网络匹配三维地使用波长资源。 另外，多尺寸光交叉连接交换系统构造成使得两个交叉连接开关对称地布置，并且添加插入/拔出开关来切换两个开关之间的加/减链路。

公开(公告)号：US06862303B2

公开(公告)日：2005-03-01

申请号：US10196465

申请日：2002-07-15

申请人： Bong Kyu Kim ,  Kwang Joon Kim ,  Byoung-Sung Kim ,  Hae Geun Kim

发明人： Bong Kyu Kim ,  Kwang Joon Kim ,  Byoung-Sung Kim ,  Hae Geun Kim

IPC分类号： H01S5/0687 ,  H01S5/40 ,  H04B10/50 ,  H04B10/572 ,  H04J14/02 ,  H01S3/13

CPC分类号： H04B10/572 ,  H01S5/0687 ,  H01S5/4087 ,  H04B10/506 ,  H04J14/02

摘要： Disclosed is a multiwavelength locking method and apparatus using an acousto-optic tunable filter in an optical communication system including optical transport networks, in which output wavelengths of light sources are monitored under the condition in which pilot signals are applied to the acousto-optic tunable filter, so as to lock the wavelengths of the light sources, thereby eliminating an wavelength instability of the light sources for an improvement in transmission characteristics. The acousto-optic tunable filter receives light beams of N different frequencies respectively outputted from N light sources, along with N pilot signals having different frequencies, and converts respective frequencies of beam components of the output beam corresponding to the N pilot signals, thereby outputting N frequency-converted output beams to be applied to a photo-detector. N electrical signals respectively corresponding to the frequencies of the pilot signals are outputted from the photo-detector, separated from one another while corresponding to the light sources, respectively, and then used to compensate for respective output wavelengths of the light sources, thereby enabling the corresponding light sources to output locked wavelengths, respectively.

摘要翻译： 公开了一种在包括光传输网络的光通信系统中使用声光可调滤波器的多波长锁定方法和装置，其中在将导频信号施加到声光可调谐滤波器的条件下监视光源的输出波长 以便锁定光源的波长，从而消除了光源的波长不稳定性，以提高传输特性。 声光可调谐滤波器接收分别从N个光源输出的N个不同频率的光束以及具有不同频率的N个导频信号，并且转换与N个导频信号对应的输出波束的波束分量的各个频率，从而输出N 频率转换的输出光束被施加到光检测器。 分别对应于导频信号的频率的N个电信号分别从光电检测器输出，分别对应于光源，然后用于补偿光源的各个输出波长，从而使得 相应的光源分别输出锁定波长。

公开(公告)号：US06303040B1

公开(公告)日：2001-10-16

申请号：US09389459

申请日：1999-09-03

申请人： Min Cheol Oh ,  Myung Hyun Lee ,  Hyung Jong Lee ,  Joo Heon Ahn ,  Seon Gyu Han ,  Hae Geun Kim

发明人： Min Cheol Oh ,  Myung Hyun Lee ,  Hyung Jong Lee ,  Joo Heon Ahn ,  Seon Gyu Han ,  Hae Geun Kim

IPC分类号： B44C122

CPC分类号： G02F1/065 ,  G02F1/0147 ,  G02F2201/307

摘要： A method of fabricating a thermooptic tunable wavelength filter of optical communication systems using WDM is provided, which includes the steps of forming a polymer optical waveguide on a semiconductor substrate using a polymer material, forming a polymer Bragg grating on the optical waveguide using O2 RIE and polymer spin coating, and forming a thermooptic tuning electrode over the polymer optical waveguide in which the Bragg grating is integrated. This provides the thermooptical tunable wavelength filter which has very narrow wavelength band width of transmission signal, low crosstalk with optical signals adjacent thereto, stable wavelength tuning characteristic using thermooptic effect and wide tuning ranges. Furthermore, the optical devices using the polymer optical waveguide can be fabricated with low cost. Thus, they have advantages in terms of economy and marketability.

摘要翻译： 提供了一种制造使用WDM的光通信系统的光波可调波长滤波器的方法，其包括以下步骤：使用聚合物材料在半导体衬底上形成聚合物光波导，使用O 2 RIE在光波导上形成聚合物布拉格光栅; 聚合物旋涂，并在其上集成布拉格光栅的聚合物光波导上形成热光调谐电极。 这提供了光学可调波长滤波器，其具有非常窄的传输信号的波长带宽，与其相邻的光信号的低串扰，使用热光效应和宽调谐范围的稳定的波长调谐特性。 此外，可以以低成本制造使用聚合物光波导的光学装置。 因此，它们在经济和市场化方面具有优势。

公开(公告)号：US07174101B2

公开(公告)日：2007-02-06

申请号：US10152227

申请日：2002-05-20

申请人： Choi Jee Yon ,  Yang Choong Reol ,  Hong Hyun Ha ,  Hae Geun Kim

发明人： Choi Jee Yon ,  Yang Choong Reol ,  Hong Hyun Ha ,  Hae Geun Kim

IPC分类号： H04J14/00 ,  H04L12/28

CPC分类号： H04Q11/0005 ,  H04Q2011/0045

摘要： A method capable of optical packet switching even in a case where physical optical data in an optical packet switch has not the shape of a packet but the shape of continuous data, and a system therefore are provided. The optical switching method includes the steps of (a) detecting input terminals into which an optical packet is input, of an optical switch and switching the optical packet to destination output terminals of the optical packet, and (b) when there are the input terminals into which the optical packet is not inputted in step (a), detecting other input terminals into which the optical packet, which direct an output terminal among the plurality of output terminals connected to the input terminals, is inputted, and searching a blank output terminal and switching dummy data from the input terminal to the blank output terminal. Data having the shape of all input optical packets and data having not the shape of a packet but another shape can be switched into output terminals without omission, and thus data output when input data have the shape of continuous data maintain the shape of the continuous data.

摘要翻译： 即使在光分组交换机中的物理光学数据不具有分组的形状但是连续数据的形状的情况下也能够进行光分组交换的方法以及因此提供的系统。 光切换方法包括以下步骤：（a）检测光分组输入的输入端，光开关，并将光分组切换到光分组的目的地输出端;（b）当存在输入端 在步骤（a）中不输入光学分组的光检测器，检测其中输入了连接到输入端的多个输出端之中的输出端的光学分组的其它输入端，并且搜索空白输出端 并将虚拟数据从输入端切换到空白输出端。 具有所有输入光学分组的形状的数据和不具有分组形状的数据但是另一种形状的数据可以被切换到输出端而不被省略，因此当输入数据具有连续数据的形状时保持连续数据的形状的数据输出 。

公开(公告)号：US06594053B1

公开(公告)日：2003-07-15

申请号：US09432392

申请日：1999-11-02

申请人： Hyuek Jae Lee ,  Hae Geun Kim ,  Jee Yon Choi ,  Sung Wan Kim

发明人： Hyuek Jae Lee ,  Hae Geun Kim ,  Jee Yon Choi ,  Sung Wan Kim

IPC分类号： H04B1000

CPC分类号： H04B10/299

摘要： An apparatus for controlling cycles of optical pulse streams based on a time correlation is disclosed. The feedback optical pulses and the input optical pulses are subjected to a time interleaving so as to make them not overlapped together, and then they are subjected to a time correlation, thereby considerably reducing the polarized beam dependence of the input optical pulse streams. The apparatus includes a clock generating means for generating clocks, and an optical pulse generating means for receiving the clocks from the clock generating means to generate optical pulses in synchronization with the pulses of the clock generating means. An input optical pulse distributing means distributes the feedback optical pulses of an output optical pulse distributing means, and distributes the optical pulses of the optical pulse generating means. A time correlation means correlates the time of optical pulses of the input optical pulse distributing means, and an optical pulse transferring/processing means amplifies and filters the optical pulses of the time correlation means to attenuate them. An output optical distributing means distributes the optical pulses of the optical pulse transferring/ processing means.

摘要翻译： 公开了一种用于基于时间相关来控制光脉冲流周期的装置。 对反馈光脉冲和输入光脉冲进行时间交织，使它们不重叠在一起，然后对它们进行时间相关，从而大大降低了输入光脉冲流的偏振光束依赖性。 该装置包括用于产生时钟的时钟产生装置和用于从时钟产生装置接收时钟以产生与时钟发生装置的脉冲同步的光脉冲的光脉冲发生装置。 输入光脉冲分配装置分配输出光脉冲分配装置的反馈光脉冲，并分配光脉冲发生装置的光脉冲。 时间相关装置使输入光脉冲分配装置的光脉冲的时间相关，并且光脉冲传送/处理装置对时间相关装置的光脉冲进行放大和滤波以对其进行衰减。 输出光分配装置分配光脉冲传送/处理装置的光脉冲。