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31. 发明申请

US20050117909A1 Coupler-based optical cross-connect 失效
标题翻译：基于耦合器的光交叉连接
公开(公告)号：US20050117909A1
公开(公告)日：2005-06-02
申请号：US10726167
申请日：2003-12-02
申请人： Yasuhiko Aoki , Susumu Kinoshita , Koji Takeguchi
发明人： Yasuhiko Aoki , Susumu Kinoshita , Koji Takeguchi
IPC分类号： H04B10/02 , H04J14/00 , H04J14/02 , H04Q11/00
CPC分类号： H04Q11/0005 , H04J14/0204 , H04J14/0205 , H04J14/021 , H04J14/0217 , H04J14/0219 , H04Q2011/0009 , H04Q2011/0015
摘要： An optical cross-connect includes multiple input ports that each receive an optical input signal and multiple output ports that each output an optical output signal. The optical cross-connect also includes a distributing amplifier associated with each input port that generates multiple copies of the input signal received at the associated input port. Furthermore, the optical cross-connect includes multiple filter units that receive a copy of one or more of the input signals from one or more of the distributing amplifiers and forward traffic in selected channels of one or more of the received copies. In addition, the optical cross-connect includes a combining amplifier associated with each output port. Each combining amplifier receives the traffic in one or more of the channels forwarded by one or more of the filter units and combines the received traffic into an output signal to be output from the associated output port.
摘要翻译：光交叉连接包括多个输入端口，每个输入端口接收光输入信号和多个输出端口，每个输出端口输出光输出信号。光交叉连接还包括与每个输入端口相关联的分配放大器，其产生在相关联的输入端口处接收的输入信号的多个副本。此外，光交叉连接包括多个滤波器单元，其接收来自一个或多个分配放大器的一个或多个输入信号的副本以及一个或多个所接收副本的所选频道中的前向业务。此外，光交叉连接包括与每个输出端口相关联的组合放大器。每个组合放大器接收由一个或多个滤波器单元转发的一个或多个信道中的业务，并将接收到的业务组合成输出信号以从相关联的输出端口输出。

32. 发明授权

US06873457B2 Optical amplifier, excitation light source control method for use in optical amplifier, and optical amplifier control method 失效
标题翻译：光放大器，用于光放大器的激发光源控制方法和光放大器控制方法
公开(公告)号：US06873457B2
公开(公告)日：2005-03-29
申请号：US10352941
申请日：2003-01-29
申请人： Susumu Kinoshita , Terumi Chikama
发明人： Susumu Kinoshita , Terumi Chikama
IPC分类号： H04B10/25 , H01S3/094 , H04B10/032 , H04B10/077 , H04B10/079 , H04B10/2525 , H04B10/29 , H04B10/296 , H04B10/297 , H04J14/02 , H01S3/00
CPC分类号： H04B10/296 , H01S3/094003 , H04B10/291 , H04B10/294 , H04J14/0221
摘要： An optical amplifier for use in, for example, a wavelength multiplexing optical communication system, in order to allow an excitation light source to be enlargeable or removable in accordance with an increase/decrease in the number of channels in signal light even if the optical communication system is in operation.
摘要翻译：一种用于例如波分复用光通信系统的光放大器，以便根据信号光中的信道数目的增加/减少，允许激励光源可放大或可移除，即使光通信系统正在运行。

33. 发明申请

US20050045810A1 Method and system for controlling an amplifier in an optical network 失效
标题翻译：用于控制光网络放大器的方法和系统
公开(公告)号：US20050045810A1
公开(公告)日：2005-03-03
申请号：US10648941
申请日：2003-08-26
申请人： Cechan Tian , Susumu Kinoshita
发明人： Cechan Tian , Susumu Kinoshita
IPC分类号： H04B10/16 , H01J40/14 , H04B10/17
CPC分类号： H04B10/2931
摘要： A method for controlling an amplifier in an optical network includes determining primary pump power information for a primary amplifier and communicating the primary pump power information to a secondary amplifier coupled to the primary amplifier. The method also includes generating secondary pump control information for the secondary amplifier based on the primary pump power information and amplifying a first optical signal at the secondary amplifier based on the secondary pump control information.
摘要翻译：用于控制光网络中的放大器的方法包括：确定主放大器的主泵功率信息，并将主泵功率信息传送到耦合到初级放大器的次级放大器。该方法还包括基于主泵功率信息为次级放大器产生二次泵控制信息，并且基于次级泵控制信息放大次级放大器处的第一光信号。

34. 发明授权

US06373623B1 Optical amplifier for use in optical communications equipment 失效
标题翻译：用于光通信设备的光放大器
公开(公告)号：US06373623B1
公开(公告)日：2002-04-16
申请号：US09677759
申请日：2000-10-03
申请人： Chihiro Ohshima , Susumu Kinoshita , Terumi Chikama
发明人： Chihiro Ohshima , Susumu Kinoshita , Terumi Chikama
IPC分类号： H01S300
CPC分类号： H01S3/06704 , G02F1/093 , H01S3/06754 , H01S3/094003 , H01S3/09408 , H01S5/40
摘要： The output level of pumping light supplied from a pumping light source is varied using a variable attenuator, which is controlled by a variable attenuator driver circuit. By separating a portion containing the pumping light source from a portion containing an amplification medium, it becomes possible to prevent heat emitted by the pumping light source from adversely affecting the amplification medium. By arranging the portion containing the pumping light source such that a pumping light source or sources can be added when necessary, optical transmission system requirements of having more pumping light sources for system upgrade can be accommodated readily. By packaging portions containing amplification media, an optical amplifier can be made small.
摘要翻译：从泵浦光源提供的泵浦光的输出电平使用由可变衰减器驱动电路控制的可变衰减器来改变。通过从包含放大介质的部分分离含有泵浦光源的部分，可以防止由泵浦光源发出的热量对放大介质产生不利影响。通过布置包含泵浦光源的部分，使得在必要时可以添加泵浦光源或源，可容易地适应具有用于系统升级的更多泵浦光源的光传输系统要求。通过封装包含放大介质的部分，可以使光放大器变小。

35. 发明授权

US06335823B2 Optical amplifier for use in optical communications equipment 失效
公开(公告)号：US06335823B2
公开(公告)日：2002-01-01
申请号：US09769532
申请日：2001-01-26
申请人： Chihiro Ohshima , Susumu Kinoshita , Terumi Chikama
发明人： Chihiro Ohshima , Susumu Kinoshita , Terumi Chikama
IPC分类号： H01S301
CPC分类号： H01S3/094003 , H01S3/06704 , H01S3/09408
摘要： The output level of pumping light supplied from a pumping light source is varied using a variable attenuator, which is controlled by a variable attenuator driver circuit. By separating a portion containing the pumping light source from a portion containing an amplification medium, it becomes possible to prevent heat emitted by the pumping light source from adversely affecting the amplification medium. By arranging the portion containing the pumping light source such that a pumping light source or sources can be added when necessary, optical transmission system requirements of having more pumping light sources for system upgrade can be accommodated readily. By packaging portions containing amplification media, an optical amplifier can be made small.

36. 发明授权

US06282017B1 Optical communication system and optical amplifier 失效
标题翻译：光通信系统和光放大器
公开(公告)号：US06282017B1
公开(公告)日：2001-08-28
申请号：US09572854
申请日：2000-05-18
申请人： Susumu Kinoshita
发明人： Susumu Kinoshita
IPC分类号： G02F135
CPC分类号： H04B10/296 , H01S3/06754 , H01S3/10015 , H01S3/1301 , H01S3/1305 , H01S2301/06 , H04B10/0771 , H04B10/0775 , H04B10/0777 , H04B2210/075 , H04B2210/078 , H04J14/0221 , H04J14/0227 , H04J14/0246 , H04J14/0279 , H04J14/0298
摘要： An optical communication system having a transmitting station for outputting WDM(wavelength-division multiplexing) signal light, an optical fiber transmission line, a receiving station, and an optical repeater including an optical amplifier. The transmitting station includes a supervisory circuit for detecting the number of channels of the WDM signal light and transmitting supervisory information including the number of channels to the optical repeater. The optical repeater further includes a circuit for controlling the optical amplifier so that the output level of the optical amplifier becomes a target level. The target level is set according to the supervisory information. According to the structure, it can be possible to provide a system which can easily respond to a change in the number of WDM channels.
摘要翻译：一种具有用于输出WDM（波分复用）信号光的发送站，光纤传输线，接收站和包括光放大器的光中继器的光通信系统。发送站包括用于检测WDM信号光的信道数目的监控电路，并将包括通道数的监控信息发送到光中继器。光中继器还包括用于控制光放大器以使光放大器的输出电平成为目标电平的电路。目标级别根据监控信息设置。根据该结构，可以提供能够容易地应对WDM信道数量变化的系统。

37. 发明授权

US06178037B1 Optical amplifying apparatus 失效
标题翻译：光放大装置
公开(公告)号：US06178037B1
公开(公告)日：2001-01-23
申请号：US09028825
申请日：1998-02-24
申请人： Yasushi Sugaya , Susumu Kinoshita , Hiroshi Onaka , Terumi Chikama
发明人： Yasushi Sugaya , Susumu Kinoshita , Hiroshi Onaka , Terumi Chikama
IPC分类号： H01S300
CPC分类号： H01S3/1301 , H01S5/0617 , H01S5/06808 , H01S5/0683 , H01S5/50
摘要： A computer-controlled optical amplifying apparatus, which includes an optical amplifying unit including an optical amplifying medium and an optical amplifying control unit controlling the optical amplifying unit under the control of a computer. This optical amplifying control unit is constituted by a status monitoring unit for monitoring the status, an optical output control unit for controlling the optical amplifying unit in accordance with the result of monitoring of status; and a status restoring unit for initializing the control status of the optical output control unit by initializing the computer when detecting an occurrence of the abnormal status by the result of monitoring of status and restoring the optical output control unit to the control status before occurrence of the related abnormal status within a relaxation time inherent in the optical amplifying medium occurring accompanied with this initialization.
摘要翻译：一种计算机控制的光学放大装置，其包括具有光放大介质的光放大单元和在计算机的控制下控制光放大单元的光放大控制单元。该光放大控制单元由用于监视状态的状态监视单元，根据状态监视结果控制光放大单元的光输出控制单元构成; 以及状态恢复单元，用于通过初始化计算机的初始化来初始化光输出控制单元的控制状态，该状态恢复单元通过状态监视的结果检测到异常状态的发生，并且在发生之前将光输出控制单元恢复到控制状态在与该初始化相关的光放大介质中固有的弛豫时间内的相关异常状态。

38. 发明授权

US06172801B2 Optical amplifier, optical amplifying apparatus, optical transmitter for use in optical communications system, and optical surge suppression method for the optical amplifier 失效
标题翻译：光放大器，光放大装置，用于光通信系统的光发射机以及用于光放大器的光浪涌抑制方法
公开(公告)号：US06172801B2
公开(公告)日：2001-01-09
申请号：US08925917
申请日：1997-09-09
申请人： Miki Takeda , Susumu Kinoshita
发明人： Miki Takeda , Susumu Kinoshita
IPC分类号： H01S306
CPC分类号： H04B10/2931 , H01S3/10023 , H01S2301/06 , H04B10/2912
摘要： There is disclosed a technique regarding an optical amplifier in an optical communications system. In order to effectively suppress optical surges during amplification of signal light, through a simple structure, there is provided an amplifying medium which amplifies input light and outputs the amplified light, and reflecting members are connected to the input and output sides of the amplifying medium. The reflecting members can reflect light with a predetermined optical wavelength different from a signal light wavelength contained in the input light.
摘要翻译：公开了关于光通信系统中的光放大器的技术。为了有效地抑制信号光放大期间的光波动，通过简单的结构，提供了放大输入光并输出放大的光的放大介质，反射构件连接到放大介质的输入和输出侧。反射构件可以反射具有与输入光中包含的信号光波长不同的预定光波长的光。

39. 发明授权

US6157481A Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of the channels are varied 有权
标题翻译：当频道数量变化时，控制可变光衰减器来控制波分复用光信号的功率电平的控制器
公开(公告)号：US6157481A
公开(公告)日：2000-12-05
申请号：US328368
申请日：1999-06-09
申请人： Yasushi Sugaya , Susumu Kinoshita
发明人： Yasushi Sugaya , Susumu Kinoshita
IPC分类号： H01S3/10 , G02B6/06 , H01S3/06 , H01S3/067 , H01S3/13 , H04B10/07 , H04B10/2525 , H04B10/2543 , H04B10/29 , H04B10/296 , H04B10/54 , H04B10/564 , H04B10/58 , H04J14/00 , H04J14/02 , H04B10/16
CPC分类号： H01S3/06758 , H01S3/1301 , H04B10/291 , H04B10/2912 , H04B10/2931 , H04B10/2942 , H04B10/296 , H04J14/0221 , H01S2301/04 , H01S3/10015 , H01S3/1003 , H04B2210/003
摘要： An optical amplifying apparatus which includes an optical amplifier, an optical attenuator and a controller. The optical amplifier amplifies a light signal having a variable number of channels. The optical attenuator passes the amplified light signal and has a variable light transmissivity. Prior to varying the number of channels in the light signal, the controller varies the light transmissivity of the optical attenuator so that a power level of the amplified light signal is maintained at an approximately constant level that depends on the number of channels in the light signal prior to the varying the number of channels. While the number of channels in the light signal is being varied, the controller maintains the light transmissivity of the optical attenuator to be constant. Subsequent to varying the number of channels in the light signal, the controller varies the light transmissivity of the optical attenuator so that a power level of the amplified light signal is maintained at an approximately constant level that depends on the number of channels in the light signal subsequent to the varying the number of channels.
摘要翻译：一种光放大装置，包括光放大器，光衰减器和控制器。光放大器放大具有可变通道数的光信号。光衰减器通过放大的光信号并具有可变的透光率。在改变光信号中的通道数量之前，控制器改变光衰减器的透光率，使得放大的光信号的功率电平保持在大致恒定的水平，这取决于光信号中的通道数在改变频道数之前。虽然光信号中的信道数量正在变化，但是控制器保持光衰减器的光透射率是恒定的。在改变光信号中的通道数量之后，控制器改变光衰减器的透光率，使得放大的光信号的功率电平保持在大致恒定的水平，这取决于光信号中的通道数随后改变频道数量。

40. 发明授权

US6151158A Method and device for optical amplification and system having the device 失效
标题翻译：用于光放大的方法和装置以及具有该装置的系统
公开(公告)号：US6151158A
公开(公告)日：2000-11-21
申请号：US1092
申请日：1997-12-30
申请人： Miki Takeda , Susumu Kinoshita , Hiroshi Onaka
发明人： Miki Takeda , Susumu Kinoshita , Hiroshi Onaka
IPC分类号： H01S3/07 , H01S3/06 , H01S3/067 , H01S3/094 , H01S3/10 , H01S3/131 , H04B10/07 , H04B10/2519 , H04B10/29 , H04B10/294 , H01S3/00
CPC分类号： H04B10/291 , H01S3/10023 , H04B10/2912 , H04B10/2941 , H04B10/2942 , H01S2301/04 , H01S3/0078 , H01S3/0675 , H01S3/06758 , H01S3/094096 , H01S3/10015 , H01S3/1301 , H04B2210/003
摘要： A device comprising an optical amplifier including an optical amplifying medium, and first and second optical filters operatively connected to the optical amplifier to suppress the wavelength dependence of gain. The medium has an input end and an output end for an optical signal. The medium is pumped so that it provides a gain band. The gain band includes a first band giving a relatively high gain and noise figure to the optical signal and a second band giving a relatively low gain and noise figure to the optical signal. The first optical filter is connected to the input end of the medium and has characteristics such that the first optical filter suppresses the wavelength dependence of gain in the second band. The second optical filter is connected to the output end of the medium and has characteristics such that the second optical filter suppresses the wavelength dependence of gain in the first band. This configuration allows suitable suppression of the wavelength dependence of gain in each optical filter, thereby providing a low noise figure and high optical output power.
摘要翻译：一种包括包括光放大介质的光放大器和可操作地连接到光放大器以抑制增益的波长依赖性的第一和第二光学滤波器的装置。介质具有用于光信号的输入端和输出端。泵送介质使其提供增益带。增益频带包括对光信号提供相对较高的增益和噪声系数的第一频带以及给予光信号相对低的增益和噪声系数的第二频带。第一滤光器连接到介质的输入端，并且具有使得第一滤光器抑制第二波段中的增益的波长依赖性的特性。第二滤光器连接到介质的输出端，并且具有这样的特性，使得第二滤光器抑制第一波段中的增益的波长依赖性。该配置允许适当地抑制每个滤光器中的增益的波长依赖性，从而提供低噪声系数和高的光输出功率。

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