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1. 发明授权

US5828796A Optical switch for reducing processing errors in a coupling region 失效
标题翻译：用于减少耦合区域中处理误差的光开关
公开(公告)号：US5828796A
公开(公告)日：1998-10-27
申请号：US747766
申请日：1996-11-13
申请人： Seon Gyu Han , Hye Young Kim , Myung Hyun Lee , Hyung Jong Lee , Yong Hyub Won
发明人： Seon Gyu Han , Hye Young Kim , Myung Hyun Lee , Hyung Jong Lee , Yong Hyub Won
IPC分类号： G02B6/35 , G02B6/12 , G02B6/125 , G02F1/313 , G02B6/26
CPC分类号： G02F1/3136 , G02B6/125 , G02B2006/12145 , G02B2006/12147 , G02B2006/12159
摘要： An optical switch having reduced processing errors in a coupling region, according to the claimed invention includes an input portion having a pair of optical waveguides; an output portion having a pair of optical waveguides; a light phase shifting portion for inducing an additional phase change on light travelling in the input portion; a first light coupling waveguide for coupling between two light signals of the input portion and for providing a coupled signal with the light phase shifting portion; and a second light coupling waveguide for coupled between two light signals of the light phase shifting means and for providing a coupled signal with the output portion. The light coupling unit includes a waveguide. The switch reduces considerably any error that stems from manufacturing variations between waveguides in a coupling region since the waveguides share the error produced in a coupling region. The length of the switching element can be reduced since the coupled between waveguides is not indirect as in DC switches and BB switches. Due to the reduction in length, the output loss is reduced considerable.
摘要翻译：根据要求保护的发明，在耦合区域中具有减小的处理误差的光开关包括具有一对光波导的输入部分; 具有一对光波导的输出部; 光相移部分，用于在输入部分中行进的光线上引起附加的相位变化; 第一光耦合波导，用于耦合所述输入部分的两个光信号，并用于与所述光相移部分提供耦合信号; 以及第二光耦合波导，用于耦合在所述光相移装置的两个光信号之间，并用于与所述输出部分提供耦合信号。光耦合单元包括波导。由于波导共享在耦合区域中产生的误差，所以该开关显着地减少了由耦合区域中的波导之间的制造变化引起的任何误差。开关元件的长度可以减小，因为在DC开关和BB开关中，波导之间的耦合不是间接的。由于长度的减小，输出损耗相当可观。

2. 发明授权

US5841556A Optical switching system with combined space and wavelength division multiplex based on the repeated contention resolution technique 失效
标题翻译：基于重复争用解决技术的具有组合空间和波分复用的光交换系统
公开(公告)号：US5841556A
公开(公告)日：1998-11-24
申请号：US780122
申请日：1996-12-26
申请人： Hyun Ha Hong , Yong Hyub Won
发明人： Hyun Ha Hong , Yong Hyub Won
IPC分类号： H04L12/56 , H04Q11/00 , H04J14/00
CPC分类号： H04Q11/0005 , H04L49/3081 , H04Q11/0001 , H04L2012/5672 , H04Q2011/0015 , H04Q2011/002 , H04Q2011/0024 , H04Q2011/005 , H04Q2011/0075
摘要： Disclosed is an optical switching system with a combined space and wavelength division multiplex based on the repeated contention technique. The present invention has effects on high capacity in required in the optical switch module, by performing the contention resolution over a two consecutive cell time slot which repeatedly employs the present and previous state information. According to the present invention, the input cells make use of a switching opportunity two times. As a result, the present invention maintains the desired probability of cell loss, keeping up the state values L small. Also, the present invention can decrease the number of filters because it is possible to decrease the number of wavelength used for the wavelength conversion. Furthermore, the present invention has an effect on the high capacity based on the extension of the optical switch modules.
摘要翻译：公开了一种基于重复争用技术的具有组合空间和波分复用的光交换系统。本发明通过在重复采用当前状态信息和先前状态信息的两个连续小区时隙上执行争用解决方案，对光开关模块中所需的高容量具有影响。根据本发明，输入单元利用了两次切换机会。结果，本发明保持细胞损失的期望概率，保持状态值L小。此外，本发明可以减少滤波器的数量，因为可以减少用于波长转换的波长的数量。此外，本发明对基于光开关模块的扩展的高容量具有影响。

3. 发明授权

US07034989B2 Optical wavelength conversion apparatus and method using injection locking of fabry-perot laser diode 有权
标题翻译：光波长转换装置和方法，采用注射锁定法宝珀罗激光二极管
公开(公告)号：US07034989B2
公开(公告)日：2006-04-25
申请号：US10833832
申请日：2004-04-28
申请人： Hark Yoo , Hyuek Jae Lee , Yong Deok Jeong , Yong Hyub Won , Min Ho Kang
发明人： Hark Yoo , Hyuek Jae Lee , Yong Deok Jeong , Yong Hyub Won , Min Ho Kang
IPC分类号： G02F2/02 , G02F1/35
CPC分类号： H01S5/5036 , H01S5/005 , H01S5/0064 , H01S5/509
摘要： Disclosed are an apparatus and method for converting the wavelength of an optical signal using a multi-mode Fabry-Perot laser diode. The apparatus controls polarization of an external pump optical signal to output a TE polarized pump optical signal, and controls polarization of a probe optical signal to output a TM polarized probe optical signal. The apparatus couples the TM polarized probe optical signal and TE polarized pump optical signal irrespective of the polarization of the optical signals. The apparatus finely controls the polarization of the pump optical signal and the polarization of the probe optical signal such that they conform to TE and TM modes of the Fabry-Perot laser diode, respectively. The Fabry-Perot laser diode injection-locks the TE polarized pump optical signal of the coupled signal to change the position of a TM mode absorption null (a point at which an output optical signal has the minimum intensity), to thereby convert the wavelength of the TE polarized pump optical signal to the wavelength of the TM polarized probe optical signal. Accordingly, a wide wavelength conversion band is provided, and inverting and non-inverting wavelength conversions are easily carried out.
摘要翻译：公开了一种使用多模式法布里 - 珀罗激光二极管转换光信号的波长的装置和方法。该装置控制外部泵浦光信号的偏振以输出TE偏振泵浦光信号，并且控制探测光信号的偏振以输出TM偏振探测光信号。该装置将TM极化探针光信号和TE偏振泵浦光信号耦合，而与光信号的偏振无关。该装置精细地控制泵浦光信号的极化和探针光信号的极化，使得它们分别符合法布里 - 珀罗激光二极管的TE和TM模式。法布里 - 珀罗激光二极管注入锁定耦合信号的TE偏振泵浦光信号，以改变TM模式吸收零点（输出光信号具有最小强度的点）的位置，从而将波长将TE偏振泵的光信号转换成TM偏振光的波长的光信号。因此，提供了宽波长转换频带，并且容易进行反相和非反相波长转换。

4. 发明申请

US20050100267A1 Optical wavelength conversion apparatus and method using injection locking of fabry-perot laser diode 有权
标题翻译：光波长转换装置和方法，采用注射锁定法宝珀罗激光二极管
公开(公告)号：US20050100267A1
公开(公告)日：2005-05-12
申请号：US10833832
申请日：2004-04-28
申请人： Hark Yoo , Hyuek Lee , Yong Jeong , Yong Hyub Won , Min Kang
发明人： Hark Yoo , Hyuek Lee , Yong Jeong , Yong Hyub Won , Min Kang
IPC分类号： H04B10/02 , G02B6/26 , G02B6/42 , H01S5/00 , H01S5/50
CPC分类号： H01S5/5036 , H01S5/005 , H01S5/0064 , H01S5/509
摘要： Disclosed are an apparatus and method for converting the wavelength of an optical signal using a multi-mode Fabry-Perot laser diode. The apparatus controls polarization of an external pump optical signal to output a TE polarized pump optical signal, and controls polarization of a probe optical signal to output a TM polarized probe optical signal. The apparatus couples the TM polarized probe optical signal and TE polarized pump optical signal irrespective of the polarization of the optical signals. The apparatus finely controls the polarization of the pump optical signal and the polarization of the probe optical signal such that they conform to TE and TM modes of the Fabry-Perot laser diode, respectively. The Fabry-Perot laser diode injection-locks the TE polarized pump optical signal of the coupled signal to change the position of a TM mode absorption null (a point at which an output optical signal has the minimum intensity), to thereby convert the wavelength of the TE polarized pump optical signal to the wavelength of the TM polarized probe optical signal. Accordingly, a wide wavelength conversion band is provided, and inverting and non-inverting wavelength conversions are easily carried out.
摘要翻译：公开了一种使用多模式法布里 - 珀罗激光二极管转换光信号的波长的装置和方法。该装置控制外部泵浦光信号的偏振以输出TE偏振泵浦光信号，并且控制探测光信号的偏振以输出TM偏振探测光信号。该装置将TM极化探针光信号和TE偏振泵浦光信号耦合，而与光信号的偏振无关。该装置精细地控制泵浦光信号的极化和探针光信号的极化，使得它们分别符合法布里 - 珀罗激光二极管的TE和TM模式。法布里 - 珀罗激光二极管注入锁定耦合信号的TE偏振泵浦光信号，以改变TM模式吸收零点（输出光信号具有最小强度的点）的位置，从而将波长将TE偏振泵的光信号转换成TM偏振光的波长的光信号。因此，提供了宽波长转换频带，并且容易进行反相和非反相波长转换。

5. 发明授权

US5651080A Optical exchanging apparatus using mode conversion and mode selection in an optical waveguide 失效
标题翻译：在光波导中使用模式转换和模式选择的光交换装置
公开(公告)号：US5651080A
公开(公告)日：1997-07-22
申请号：US707305
申请日：1996-09-03
申请人： Kwang Uk Chu , Yong Hyub Won
发明人： Kwang Uk Chu , Yong Hyub Won
IPC分类号： G02B6/14 , H04J14/04 , H04Q11/00 , G02B6/28
CPC分类号： H04J14/04 , G02B6/14 , H04Q11/0005 , H04Q2011/0011 , H04Q2011/0015
摘要： An optical exchanging apparatus is disclosed including N optical transmitters for generating optical signals each having a single constant mode, N mode converters for converting modes of the optical signals generated from the optical transmitters according to a mode-converting signal, an Nx1 coupler for coupling the mode-converted optical signals generated from the mode converters to be supplied to one terminal, a 1xN distributor or distributing the coupled optical signal generated from the Nx1 coupler to N optical signals each having various modes, N mode selectors for respectively passing only the optical signal of a selected mode out of the N optical signals generated from the 1xN distributor, and N optical receivers for receiving the optical signals generated from the mode selectors.
摘要翻译：公开了一种光交换装置，其包括用于产生每个具有单个恒定模式的光信号的N个光发射机，用于根据模式转换信号转换从光发射机产生的光信号的模式的N模转换器，用于耦合从一个终端提供的模式转换器产生的模式转换的光信号，1×N分配器或将从Nx1耦合器产生的耦合的光信号分配给每个具有各种模式的N个光信号，N个模式选择器，用于分别仅通过光信号在从1xN分配器产生的N个光信号中选出的模式，以及N个用于接收从模式选择器产生的光信号的光接收器。

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