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1. 发明授权

US06559989B1 Optical packet header processing apparatus for optical packet switch 有权
标题翻译：用于光分组交换的光分组报头处理装置
公开(公告)号：US06559989B1
公开(公告)日：2003-05-06
申请号：US09499934
申请日：2000-02-08
申请人： Kwang Joon Kim , Ji Wook Youn , Hee Sang Chung , Sung Un Lee , Jong Hyun Lee
发明人： Kwang Joon Kim , Ji Wook Youn , Hee Sang Chung , Sung Un Lee , Jong Hyun Lee
IPC分类号： H04J1408
CPC分类号： H04Q11/0005 , H04J14/08 , H04Q2011/0041
摘要： An optical packet header processing apparatus for processing a header of an optical packet expressing an address of a destination node to control a switching operation of an optical packet switch. The optical packet header processing apparatus comprises a beam splitter for splitting the optical packet header into a predetermined number of optical packet header elements, and a plurality of time interval detectors. Each of the time interval detectors receives a corresponding one of the optical packet header elements from the beam splitter and outputs a detect optical pulse if a pair of optical pulses having a predetermined time interval therebetween are present in the received optical packet header element. A plurality of optical pulse detectors are adapted to convert the detect optical pulses from the time interval detectors into electrical signals and transfer the converted electrical signals to the optical packet switch, respectively. Therefore, the optical packet switch determines the destination node in response to the electrical signals from the optical pulse detectors and outputs the optical packet to an output port corresponding to the determined destination node.
摘要翻译：一种光分组报头处理装置，用于处理表示目的地节点的地址的光分组的报头以控制光分组交换机的切换操作。光分组报头处理装置包括分光器，用于将光分组报头分割成预定数量的光分组报头元素，以及多个时间间隔检测器。每个时间间隔检测器从分束器接收相应的一个光分组报头元件，并且如果在接收的光分组报头元件中存在其间具有预定时间间隔的一对光脉冲，则输出检测光脉冲。多个光脉冲检测器适于将来自时间间隔检测器的检测光脉冲转换为电信号，并将转换后的电信号分别传送到光分组交换机。因此，光分组交换机响应于来自光脉冲检测器的电信号来确定目的地节点，并将光分组输出到与确定的目的地节点对应的输出端口。

2. 发明授权

US06480309B1 Optical gate based optical space division switch 有权
标题翻译：基于光栅的光学空间分割开关
公开(公告)号：US06480309B1
公开(公告)日：2002-11-12
申请号：US09379364
申请日：1999-08-23
申请人： Sang Rok Lee , Wan Seok Seo , Sung Un Lee , Byeong Ho Yoon , Joon Hak Bang , Jong Hyun Lee
发明人： Sang Rok Lee , Wan Seok Seo , Sung Un Lee , Byeong Ho Yoon , Joon Hak Bang , Jong Hyun Lee
IPC分类号： H04J1400
CPC分类号： H04Q11/0005 , H04Q2011/0013 , H04Q2011/0049
摘要： An optical gate based optical space division switch for switching optical signals inputted through arbitrary input ports to a desired output port with no internal collision. The optical space division switch comprises a first splitting section for splitting the optical signals inputted through the input ports, a first amplification section for selectively amplifying output optical signals from the first splitting section, a second splitting section for splitting output optical signals from the first amplification section, a second amplification section for selectively amplifying output optical signals from the second splitting section, a coupling section for coupling output optical signals from the second amplification section, and a third amplification section for amplifying an output optical signal from the coupling section and transferring the amplified optical signal to the output port. According to the present invention, optical gates are connected in a two-stage manner to cross-couple optical signals. Therefore, the optical signals are transferred only to a desired output port, thereby reducing the number of their crosstalk components and so significantly improving a signal-to-noise ratio.
摘要翻译：一种基于光栅的光学空间分配开关，用于将没有内部碰撞的通过任意输入端口输入的光信号切换到期望的输出端口。光学空分开关包括：第一分离部分，用于分离通过输入端口输入的光信号;第一放大部分，用于选择性地放大来自第一分离部分的输出光信号;第二分离部分，用于分离来自第一放大的输出光信号第二放大部分，用于选择性地放大来自第二分离部分的输出光信号，用于耦合来自第二放大部分的输出光信号的耦合部分和用于放大来自耦合部分的输出光信号的第三放大部分，放大光信号到输出端口。根据本发明，光栅以两级方式连接以交叉耦合光信号。因此，光信号仅传送到期望的输出端口，从而减少其串扰分量的数量，并因此显着提高信噪比。

3. 发明授权

US06928243B2 Optical performance monitoring apparatus for a WDM optical communication system 有权
标题翻译：一种用于WDM光通信系统的光学性能监测装置
公开(公告)号：US06928243B2
公开(公告)日：2005-08-09
申请号：US09736267
申请日：2000-12-15
申请人： Ji-Wook Youn , Sung-Un Lee , Kwang-Joon Kim , Jong-Hyun Lee
发明人： Ji-Wook Youn , Sung-Un Lee , Kwang-Joon Kim , Jong-Hyun Lee
IPC分类号： H04B10/077 , H04B10/079 , H04J14/02 , H04B10/08
CPC分类号： H04B10/077 , H04B10/07955 , H04J14/02
摘要： The optical performance monitoring apparatus includes a first optical distributor for distributing a WDM optical signal branched from an optical transmission line, a plurality of wavelength selectors, each for selecting a predetermined wavelength optical signal from the optical signal distributed, a plurality of first optical detectors, each for detecting power of the predetermined wavelength optical signal for a corresponding one of channels selected by the wavelength selectors; and a signal processor for measuring the power for each channel of the WDM optical signal, a total ASE noise power, and an optical signal-to-noise ratio for each channel from the digital value.
摘要翻译：光学性能监视装置包括用于分配从光传输线分支的WDM光信号的第一光分配器，用于从分配的光信号中选择预定波长光信号的多个波长选择器，多个第一光检测器，每个用于检测由波长选择器选择的相应一个通道的预定波长光信号的功率; 以及信号处理器，用于从数字值测量每个信道的WDM光信号的每个信道的功率，总ASE噪声功率和每个信道的光信噪比。

4. 发明授权

US06577435B1 Optical wavelength converter based on cross-gain modulation with wide input power dynamic range 失效
标题翻译：基于交叉增益调制的光波长转换器，具有宽输入功率动态范围
公开(公告)号：US06577435B1
公开(公告)日：2003-06-10
申请号：US09416395
申请日：1999-10-12
申请人： Joon-Hak Bang , Jong-Hyun Lee , Jung-Hee Han , Sung-Un Lee , Sang-Rok Lee
发明人： Joon-Hak Bang , Jong-Hyun Lee , Jung-Hee Han , Sung-Un Lee , Sang-Rok Lee
IPC分类号： G02F135
CPC分类号： G02F2/004 , G02F1/0121 , H01S5/509
摘要： An optical wavelength converter based on cross-gain modulation with wide input dynamic range, the converter including a semiconductor optical amplifier, a continuous wave source, and a probe beam controller. The semiconductor optical amplifier modulates probe power on the basis of pump power. The continuous wave source generates the probe beam and supplies the generated probe beam to the semiconductor optical amplifier. The probe beam controller adjusts bias current supplied to the continuous wave source and controls the probe power in proportion to the pump power.
摘要翻译：基于具有宽输入动态范围的交叉增益调制的光学波长转换器，该转换器包括半导体光放大器，连续波源和探测光束控制器。半导体光放大器基于泵浦功率调制探头功率。连续波源产生探测光束并将产生的探测光束提供给半导体光放大器。探头光束控制器调节提供给连续波源的偏置电流，并根据泵浦功率控制探头功率。

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