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1. 发明授权

US07689131B2 WDM system 失效
标题翻译： WDM系统
公开(公告)号：US07689131B2
公开(公告)日：2010-03-30
申请号：US10570840
申请日：2003-11-11
申请人： Kimio Uekama , Takehiro Fujita , Motoyoshi Sekiya
发明人： Kimio Uekama , Takehiro Fujita , Motoyoshi Sekiya
IPC分类号： H04B10/02
CPC分类号： H04J14/0246 , H04B10/0775 , H04B2210/077 , H04J14/0221 , H04J14/0227 , H04J14/0279
摘要： A WDM system includes a plurality of P to P WDM systems connected for wavelength-multiplexing optical signals of a plurality of wavelengths, transmitting them to a transmission path, transmitting wavelength-division multiplexed light while performing amplification by using optical AMP in the transmission path, and subjecting the wavelength-division multiplexed light to wavelength isolation at the reception side. An OSC which is a monitoring control signal such as a normal optical signal is used closely within one P to P WDM system. However, by transmitting and receiving the OSC between a plurality of P to P WDM systems, it is possible to solve a problem at the system rise. Moreover, since accumulative OSNR data is transmitted up to the P to P WDM system of the final stage, it is possible to detect an accurate OSNR value and a leak ASE light quantity at the end side.
摘要翻译： WDM系统包括多个连接用于多个波长的波分复用光信号的多个P至P WDM系统，将它们发送到传输路径，在通过在传输路径中使用光AMP进行放大的同时发送波分复用光，并且在接收侧对波分复用光进行波长隔离。作为监视控制信号的正常光信号的OSC紧密地在一个P到P WDM系统内使用。然而，通过在多个P至P WDM系统之间发送和接收OSC，可以解决系统上升的问题。此外，由于累积OSNR数据被传送到最终级的P至P WDM系统，因此可以在端侧检测精确的OSNR值和泄漏的ASE光量。

2. 发明申请

US20060285846A1 Wdm system 失效
标题翻译： Wdm系统
公开(公告)号：US20060285846A1
公开(公告)日：2006-12-21
申请号：US10570840
申请日：2003-11-11
申请人： Kimio Uekama , Takehiro Fujita , Motoyoshi Sekiya
发明人： Kimio Uekama , Takehiro Fujita , Motoyoshi Sekiya
IPC分类号： H04B10/08
CPC分类号： H04J14/0246 , H04B10/0775 , H04B2210/077 , H04J14/0221 , H04J14/0227 , H04J14/0279
摘要： A WDM system includes a plurality of P to P WDM systems connected for wavelength-multiplexing optical signals of a plurality of wavelengths, transmitting them to a transmission path, transmitting wavelength-division multiplexed light while performing amplification by using optical AMP in the transmission path, and subjecting the wavelength-division multiplexed light to wavelength isolation at the reception side. An OSC which is a monitoring control signal such as a normal optical signal is used closely within one P to P WDM system. However, by transmitting and receiving the OSC between a plurality of P to P WDM systems, it is possible to solve a problem at the system rise. Moreover, since accumulative OSNR data is transmitted up to the P to P WDM system of the final stage, it is possible to detect an accurate OSNR value and a leak ASE light quantity at the end side.
摘要翻译： WDM系统包括多个连接用于多个波长的波分复用光信号的多个P至P WDM系统，将它们发送到传输路径，在通过在传输路径中使用光AMP进行放大的同时发射波分复用光，并且在接收侧对波分复用光进行波长隔离。作为监视控制信号的正常光信号的OSC紧密地在一个P到P WDM系统内使用。然而，通过在多个P至P WDM系统之间发送和接收OSC，可以解决系统上升的问题。此外，由于累积OSNR数据被传送到最终级的P至P WDM系统，因此可以在端侧检测精确的OSNR值和泄漏的ASE光量。

3. 发明申请

US20060127101A1 Optical transmission device using a wide input dynamic range optical amplifier 有权
标题翻译：光传输器件采用宽输入动态范围光放大器
公开(公告)号：US20060127101A1
公开(公告)日：2006-06-15
申请号：US10892241
申请日：2004-07-16
申请人： Taizo Maeda , Takehiro Fujita , Motoyoshi Sekiya
发明人： Taizo Maeda , Takehiro Fujita , Motoyoshi Sekiya
IPC分类号： H04B10/00
CPC分类号： H04B10/2931
摘要： Conventionally, an adjustment of an optical power level of an input Pin of an optical amplifier module is made with an optical variable attenuator. An optical coupler for measuring the optical power level of Pin and an optical variable attenuator are replaced by a variable optical coupler. The branch ratio of the variable optical coupler is varied, whereby the input optical power level Pin to an optical amplifier module is adjusted. As a result, an optical loss is reduced by an amount corresponding to the elimination of the optical attenuator, and also the OSNR of the optical amplifier module is improved.
摘要翻译：通常，利用光可变衰减器对光放大器模块的输入引脚的光功率电平进行调整。用于测量Pin和光可变衰减器的光功率电平的光耦合器由可变光耦合器代替。改变可变光耦合器的分支比例，从而调整到光放大器模块的输入光功率电平Pin。结果，光损耗减少了对应于光衰减器的消除量，并且光放大器模块的OSNR也得到改善。

4. 发明申请

US20050219682A1 Multistage optical amplifier having tilt compensation feature 有权
标题翻译：具有倾斜补偿功能的多级光放大器
公开(公告)号：US20050219682A1
公开(公告)日：2005-10-06
申请号：US10945272
申请日：2004-09-21
申请人： Hidezumi Natori , Motoyoshi Sekiya , Takehiro Fujita
发明人： Hidezumi Natori , Motoyoshi Sekiya , Takehiro Fujita
IPC分类号： G02F1/35 , G02F1/365 , H01S3/00 , H01S3/067 , H01S3/10 , H01S3/13 , H01S3/16 , H01S3/30 , H04B10/07 , H04B10/29 , H04B10/294 , H04J14/00 , H04J14/02
CPC分类号： H01S3/06758 , H01S3/005 , H01S3/10007 , H01S3/10015 , H01S3/1305 , H01S3/1608 , H01S2301/04 , H04B10/2941 , H04B2210/003
摘要： The present invention relates to an optical amplifier and, in particular, it relates to multistage optical amplification having a feature for compensating for the tilt that is generated when a signal having a plurality of optical wavelengths and the like according to a wavelength division multiplexing (WDM) method is amplified in a wide bandwidth. The multistage optical amplifier comprises: a plurality of optical amplifiers that are connected in a multistage manner; and a common control section for commonly controlling pumping light powers of said plurality of optical amplifiers, wherein said common control section includes: tilt detection means for detecting amounts of tilt of each of said plurality of optical amplifiers; and tilt cancellation means for controlling the pumping light powers of said plurality of optical amplifiers so that the amounts of tilt of each of the optical amplifiers detected by said tilt detection means cancel each other.
摘要翻译：光放大器技术领域本发明涉及一种光放大器，特别涉及具有补偿根据波分多路复用（WDM）具有多个光波长等的信号时产生的倾斜的特征的多级光放大）方法在宽带宽中被放大。多级光放大器包括：以多级方式连接的多个光放大器; 以及用于共同控制所述多个光放大器的泵浦光功率的公共控制部分，其中所述公共控制部分包括：倾斜检测装置，用于检测所述多个光放大器中的每一个的倾斜量; 以及用于控制所述多个光放大器的泵浦光功率的倾斜消除装置，使得由所述倾斜检测装置检测的每个光放大器的倾斜量相互抵消。

5. 发明授权

US07489876B2 Optical transmission system having noise-elimination function 有权
标题翻译：具有消噪功能的光传输系统
公开(公告)号：US07489876B2
公开(公告)日：2009-02-10
申请号：US10901984
申请日：2004-07-30
申请人： Takehiro Fujita , Motoyoshi Sekiya , Hidezumi Natori
发明人： Takehiro Fujita , Motoyoshi Sekiya , Hidezumi Natori
IPC分类号： H04B10/02
CPC分类号： H04J14/0279 , H01S3/0078 , H01S3/06758 , H01S3/10015 , H01S2301/02 , H04B10/291 , H04J14/0221 , H04J14/0256 , H04J14/0275
摘要： The present invention is aimed at providing a low-cost optical transmission system of simple configuration, capable of achieving a satisfactory OSNR even in the time of transmission of a small number of wavelengths. To this end, the optical transmission system is provided with a noise elimination unit corresponding to each of optical amplifiers arranged on a transmission path. This noise elimination unit includes a transmission characteristic capable of selectively transmitting a light in a wavelength band in which a signal light exists through an amplification band of the optical amplifier, and includes a function of automatically eliminating a noise light in a wavelength band in which a signal light does not exist, of noise lights generated in the optical amplifiers.
摘要翻译：本发明旨在提供一种简单配置的低成本光传输系统，即使在少量波长的传输时也能实现令人满意的OSNR。为此，光传输系统设置有与布置在传输路径上的每个光放大器相对应的噪声消除单元。该噪声消除单元包括能够通过光放大器的放大带选择性地发送存在信号光的波长带中的光的透射特性，并且具有自动消除波长带中的噪声光的功能，其中，信号灯不存在，在光放大器中产生的噪声光。

6. 发明申请

US20050201754A1 Optical transmission system having noise-elimination function 有权
标题翻译：具有消噪功能的光传输系统
公开(公告)号：US20050201754A1
公开(公告)日：2005-09-15
申请号：US10901984
申请日：2004-07-30
申请人： Takehiro Fujita , Motoyoshi Sekiya , Hidezumi Natori
发明人： Takehiro Fujita , Motoyoshi Sekiya , Hidezumi Natori
IPC分类号： H01S3/10 , H01S3/06 , H01S3/067 , H04B10/07 , H04B10/2507 , H04B10/29 , H04B10/294 , H04J14/00 , H04J14/02
CPC分类号： H04J14/0279 , H01S3/0078 , H01S3/06758 , H01S3/10015 , H01S2301/02 , H04B10/291 , H04J14/0221 , H04J14/0256 , H04J14/0275
摘要： The present invention is aimed at providing a low-cost optical transmission system of simple configuration, capable of achieving a satisfactory OSNR even in the time of transmission of a small number of wavelengths. To this end, the optical transmission system is provided with a noise elimination unit corresponding to each of optical amplifiers arranged on a transmission path. This noise elimination unit includes a transmission characteristic capable of selectively transmitting a light in a wavelength band in which a signal light exists through an amplification band of the optical amplifier, and includes a function of automatically eliminating a noise light in a wavelength band in which a signal light does not exist, of noise lights generated in the optical amplifiers.
摘要翻译：本发明旨在提供一种简单配置的低成本光传输系统，即使在少量波长的传输时也能实现令人满意的OSNR。为此，光传输系统设置有与布置在传输路径上的每个光放大器相对应的噪声消除单元。该噪声消除单元包括能够通过光放大器的放大带选择性地发送存在信号光的波长带中的光的透射特性，并且具有自动消除波长带中的噪声光的功能，其中，信号灯不存在，在光放大器中产生的噪声光。

7. 发明授权

US07248804B2 Optical transmission device using a wide input dynamic range optical amplifier 有权
标题翻译：光传输器件采用宽输入动态范围光放大器
公开(公告)号：US07248804B2
公开(公告)日：2007-07-24
申请号：US10892241
申请日：2004-07-16
申请人： Taizo Maeda , Takehiro Fujita , Motoyoshi Sekiya
发明人： Taizo Maeda , Takehiro Fujita , Motoyoshi Sekiya
IPC分类号： H04B10/16
CPC分类号： H04B10/2931
摘要： Conventionally, an adjustment of an optical power level of an input Pin of an optical amplifier module is made with an optical variable attenuator. An optical coupler for measuring the optical power level of Pin and an optical variable attenuator are replaced by a variable optical coupler. The branch ratio of the variable optical coupler is varied, whereby the input optical power level Pin to an optical amplifier module is adjusted. As a result, an optical loss is reduced by an amount corresponding to the elimination of the optical attenuator, and also the OSNR of the optical amplifier module is improved.
摘要翻译：通常，利用光可变衰减器对光放大器模块的输入Pin的光功率电平进行调整。用于测量Pin和光可变衰减器的光功率电平的光耦合器由可变光耦合器代替。改变可变光耦合器的分支比例，从而调整到光放大器模块的输入光功率电平Pin。结果，光损耗减少了对应于光衰减器的消除量，并且光放大器模块的OSNR也得到改善。

8. 发明授权

US07391560B2 Multistage optical amplifier having tilt compensation feature 有权
标题翻译：具有倾斜补偿功能的多级光放大器
公开(公告)号：US07391560B2
公开(公告)日：2008-06-24
申请号：US10945272
申请日：2004-09-21
申请人： Hidezumi Natori , Motoyoshi Sekiya , Takehiro Fujita
发明人： Hidezumi Natori , Motoyoshi Sekiya , Takehiro Fujita
IPC分类号： H01S4/00 , H04B10/12
CPC分类号： H01S3/06758 , H01S3/005 , H01S3/10007 , H01S3/10015 , H01S3/1305 , H01S3/1608 , H01S2301/04 , H04B10/2941 , H04B2210/003
摘要： The present invention relates to an optical amplifier and, in particular, it relates to multistage optical amplification having a feature for compensating for the tilt that is generated when a signal having a plurality of optical wavelengths and the like according to a wavelength division multiplexing (WDM) method is amplified in a wide bandwidth. The multistage optical amplifier comprises: a plurality of optical amplifiers that are connected in a multistage manner; and a common control section for commonly controlling pumping light powers of said plurality of optical amplifiers, wherein said common control section includes: tilt detection means for detecting amounts of tilt of each of said plurality of optical amplifiers; and tilt cancellation means for controlling the pumping light powers of said plurality of optical amplifiers so that the amounts of tilt of each of the optical amplifiers detected by said tilt detection means cancel each other.
摘要翻译：光放大器技术领域本发明涉及一种光放大器，特别涉及具有补偿根据波分多路复用（WDM）具有多个光波长等的信号时产生的倾斜的特征的多级光放大）方法在宽带宽中被放大。多级光放大器包括：以多级方式连接的多个光放大器; 以及用于共同控制所述多个光放大器的泵浦光功率的公共控制部分，其中所述公共控制部分包括：倾斜检测装置，用于检测所述多个光放大器中的每一个的倾斜量; 以及用于控制所述多个光放大器的泵浦光功率的倾斜消除装置，使得由所述倾斜检测装置检测的每个光放大器的倾斜量相互抵消。

9. 发明授权

US09083485B2 Defragmentation of optical networks 有权
标题翻译：光网络碎片整理
公开(公告)号：US09083485B2
公开(公告)日：2015-07-14
申请号：US13445756
申请日：2012-04-12
申请人： Xi Wang , Inwoong Kim , Paparao Palacharla , Motoyoshi Sekiya
发明人： Xi Wang , Inwoong Kim , Paparao Palacharla , Motoyoshi Sekiya
IPC分类号： H04J14/02 , H04J14/00
CPC分类号： H04J14/0256 , H04J14/0212 , H04J14/0257 , H04J14/026 , H04J14/0298
摘要： According to an aspect of an embodiment, a method of spectrum defragmentation in an optical network may include assigning an optical signal within an optical network to a first frequency slot that spans a first portion of an optical spectrum of the optical network. The method may also include constructing a frequency slot dependency map based on the assignation of the optical signal to the frequency slot. The method may also include reassigning, as a result of an optical signal departure event, the optical signal to a second frequency slot based on the frequency slot dependency map. The second frequency slot may span a second portion of the optical spectrum of the optical network.
摘要翻译：根据实施例的一个方面，光网络中的频谱碎片整理的方法可以包括将光网络内的光信号分配到跨越光网络的光谱的第一部分的第一频率时隙。该方法还可以包括基于将光信号分配给频率隙来构建频率间隙依赖关系图。该方法还可以包括根据光信号离开事件将光信号重新分配到基于频率槽依赖性映射的第二时隙。第二频隙可以跨越光网络的光谱的第二部分。

10. 发明授权

US08989581B2 Wavelength reassignment in optical networks 有权
标题翻译：光网络中的波长重新分配
公开(公告)号：US08989581B2
公开(公告)日：2015-03-24
申请号：US13427754
申请日：2012-03-22
申请人： Inwoong Kim , Paparao Palacharla , Xi Wang , Motoyoshi Sekiya
发明人： Inwoong Kim , Paparao Palacharla , Xi Wang , Motoyoshi Sekiya
IPC分类号： H04J14/02 , H04B10/572
CPC分类号： H04B10/572
摘要： An optical network for reassigning a carrier wavelength of an optical signal may include first and second optical nodes. The first optical node may be configured to transmit an optical signal along an optical path. The first optical node may also be configured to tune a carrier wavelength of the optical signal from a first wavelength to a second wavelength, according to a continuous function, to reassign the carrier wavelength of the optical signal. The second optical node may be configured to receive the optical signal and may include a feedback loop configured to adjust a wavelength of a reference optical signal to approximate the carrier wavelength of the optical signal.
摘要翻译：用于重新分配光信号的载波波长的光网络可以包括第一和第二光节点。第一光节点可以被配置为沿着光路传输光信号。第一光节点还可以被配置为根据连续功能将光信号的载波波长从第一波长调谐到第二波长，以重新分配光信号的载波波长。第二光节点可以被配置为接收光信号，并且可以包括被配置为调整参考光信号的波长以近似光信号的载波波长的反馈回路。

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