专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

US06639715B2 Raman amplifier and optical transmission system using the amplifier 有权
标题翻译：拉曼放大器和使用放大器的光传输系统
公开(公告)号：US06639715B2
公开(公告)日：2003-10-28
申请号：US09935575
申请日：2001-08-24
申请人： Takao Naito , Toshiki Tanaka
发明人： Takao Naito , Toshiki Tanaka
IPC分类号： H01S300
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/094096 , H01S2301/04
摘要： A plurality of pump lights are appropriately located in a wavelength band &lgr;1 to &lgr;3. The width of the wavelength band &lgr;1 to &lgr;3 is wider than a Raman shift amount. Gain is obtained in a wavelength band &lgr;2 to &lgr;3 by the plurality of pump lights located in the wavelength band &lgr;1 to &lgr;2. Gain is obtained in a wavelength band &lgr;3 to &lgr;4 by the plurality of pump lights located in the wavelength band &lgr;2 to &lgr;3. As a result, gain can be obtained in a wavelength band &lgr;2 to &lgr;4. A plurality of signal lights are located in the wavelength band &lgr;2 to &lgr;4. The deviation of gain can be adjusted by controlling the power of each of the plurality of pump lights.
摘要翻译：多个泵浦光适当地位于λ1至λ3的波段中。波长带λ1至λ3的宽度比拉曼移位量宽。通过位于波长带λ1至λ2的多个泵浦光，在λ2至λ3的波长带中获得增益。通过位于波长带λ2至λ3的多个泵浦光，在λ3至λ4的波长带中获得增益。结果，可以在λ2至λ4的波长带中获得增益。多个信号光位于波长带λ2至λ4中。可以通过控制多个泵浦灯中的每一个的功率来调节增益的偏差。

32. 发明授权

US06324317B1 Wavelength division multiplexing optical transmission system 有权
标题翻译：波分复用光传输系统
公开(公告)号：US06324317B1
公开(公告)日：2001-11-27
申请号：US09451439
申请日：1999-11-30
申请人： Toshiki Tanaka , Takao Naito
发明人： Toshiki Tanaka , Takao Naito
IPC分类号： G02B602
CPC分类号： H04B10/25253
摘要： An object of the present invention is to provide a WDM optical transmission system with an excellent transmission characteristic by employing a hybrid transmission line which is formed by combining under optimal conditions an optical fiber having positive wavelength dispersion, and an optical fiber having negative wavelength dispersion. According to the WDM optical transmission system, an optical transmitter station, optical amplifiers, and an optical receiver station are interconnected over an optical fiber transmission line. The optical fiber transmission line has an inter-repeater segment formed with a hybrid transmission line composed of a 1.3 &mgr;m zero-dispersion SMF and an RDF, and an inter-repeater segment formed with a DCF for compensating for cumulative wavelength dispersion generated in the hybrid transmission line. As the conditions for setting the hybrid transmission line, a ratio of the length of the RDF to the length of the inter-repeater segment must be 20% or more and 40% or less. Consequently, an influence due to a nonlinear effect or transmission loss in the hybrid transmission line can be minimized to thereby improve a transmission characteristic.
摘要翻译：本发明的目的是通过采用在最佳条件下组合具有正波长色散的光纤和具有负波长色散的光纤形成的混合传输线，来提供具有优良传输特性的WDM光传输系统。根据WDM光传输系统，光发射机站，光放大器和光接收站通过光纤传输线互连。光纤传输线具有形成有由1.3μm零色散SMF和RDF组成的混合传输线的中继器间段，以及形成有用于补偿在混合中产生的累积波长色散的DCF的中继器间段传输线。作为设定混合动力传输线的条件，RDF的长度与中继器间段的长度的比率必须在20％以上且40％以下。因此，由于混合传输线路中的非线性效应或传输损耗的影响可以最小化，从而提高传输特性。

33. 发明授权

US07853147B2 Information processing system, calculation node, and control method of information processing system 有权
标题翻译：信息处理系统，计算节点和信息处理系统的控制方法
公开(公告)号：US07853147B2
公开(公告)日：2010-12-14
申请号：US11145918
申请日：2005-06-07
申请人： Toshiki Tanaka , Yasuhiko Aoki , Hideyuki Miyata , Takao Naito , Kouichiro Amemiya
发明人： Toshiki Tanaka , Yasuhiko Aoki , Hideyuki Miyata , Takao Naito , Kouichiro Amemiya
IPC分类号： H04J14/02 , H04J14/00 , H04B10/20
CPC分类号： H04Q11/0062 , H04Q2011/009
摘要： The present invention provides an information processing system, comprising a plurality of calculation nodes with an optical transmitter, which individually outputs a plurality of optical signals each having a different wavelength, and an optical receiver, which individually receives a plurality of optical signals each having a different wavelength, an optical transmission path connecting a plurality of the calculation nodes to each other, and optical pathway switching unit, lying in the optical transmission path, for transmitting the optical signal to the specific calculation node in accordance with a wavelength of the optical signal output from one of the calculation nodes.
摘要翻译：本发明提供了一种信息处理系统，包括多个具有单独输出多个具有不同波长的光信号的光发送器的计算节点，以及光接收器，其分别接收多个光信号，每个光信号具有不同的波长，连接多个计算节点的光传输路径和位于光传输路径中的光路径切换单元，用于根据光信号的波长将光信号发送到特定的计算节点从其中一个计算节点输出。

34. 发明授权

US07668465B2 Dispersion-managed optical transmission system 失效
标题翻译：色散管理光传输系统
公开(公告)号：US07668465B2
公开(公告)日：2010-02-23
申请号：US12128740
申请日：2008-05-29
申请人： Toshiki Tanaka , Takao Naito
发明人： Toshiki Tanaka , Takao Naito
IPC分类号： H04B10/12
CPC分类号： H04B10/25253 , H04B10/2918
摘要： An optical transmission system that alleviates waveform distortions due to nonlinear effects in fibers. A transmitter sends WDM signals to a receiver over a dispersion-managed optical transmission line with in-line optical repeaters. The transmission line is divided into a plurality of dispersion compensation intervals each composed of a main segment and a compensation segment. Chromatic dispersion is managed such that the dispersion compensation intervals have a non-zero net dispersion at every boundary point between them, or such that the number of zero-dispersion boundary points is reduced. The main segment is a series of repeater sections with negative dispersion, while the compensation segment is a single repeater section with positive dispersion. Non-uniform distribution of net chromatic dispersions over the transmission length is achieved by combining repeater section with different average dispersions, dispersion compensation intervals with different numbers of repeater sections, or repeater sections with different span lengths.
摘要翻译：一种减轻由于光纤非线性效应引起的波形失真的光传输系统。发射机通过具有直列光中继器的色散管理光传输线路向接收机发送WDM信号。传输线被分成多个色散补偿间隔，每个色散补偿间隔由主要段和补偿段组成。管理色散，使得色散补偿间隔在它们之间的每个边界点处具有非零净色散，或者使得零色散边界点的数量减少。主段是一系列具有负色散的中继器段，而补偿段是具有正色散的单个中继器段。通过将中继器部分与不同的平均色散，具有不同数量的中继器部分的色散补偿间隔或具有不同跨度长度的中继部分组合来实现净色散在传输长度上的不均匀分布。

35. 发明申请

US20060173983A1 Information processing system and method of controlling information processing system 审中-公开
标题翻译：信息处理系统及信息处理系统的控制方法
公开(公告)号：US20060173983A1
公开(公告)日：2006-08-03
申请号：US11145971
申请日：2005-06-07
申请人： Takao Naito , Toshiki Tanaka , Kouichiro Amemiya
发明人： Takao Naito , Toshiki Tanaka , Kouichiro Amemiya
IPC分类号： G06F15/173
CPC分类号： G06F15/16
摘要： The present invention provides an information processing system which comprises multiple processor nodes creating parallel computers, an information transmission line for connecting the processor nodes, and a separation switch provided on the information transmission line for separating the information transmission line so that the processor nodes create multiple parallel computers independent of one another.
摘要翻译：本发明提供了一种信息处理系统，其包括创建并行计算机的多个处理器节点，用于连接处理器节点的信息传输线以及设置在信息传输线上的分离开关，用于分离信息传输线，使得处理器节点创建多个并行计算机彼此独立。

36. 发明申请

US20050207756A1 Optical network system and optical coupling apparatus 有权
标题翻译：光网络系统和光耦合装置
公开(公告)号：US20050207756A1
公开(公告)日：2005-09-22
申请号：US10914192
申请日：2004-08-10
申请人： Toshiki Tanaka , Takao Naito
发明人： Toshiki Tanaka , Takao Naito
IPC分类号： H04J14/00 , H04B10/27 , H04B10/275 , H04B10/29 , H04J14/02
CPC分类号： H04J14/02 , H04J14/0226 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/028 , H04J14/0282 , H04J14/0283 , H04J14/0284
摘要： In the optical network system, light input to any of the optical input ports of the optical coupler is converted into light at another wavelength via a variable-wavelength optical receiver and an optical sender, and is then reinput to the optical coupler. This arrangement makes it possible to realize a full-mesh optical network system with a simple construction at low costs.
摘要翻译：在光网络系统中，通过可变波长光接收器和光发送器将输入到光耦合器的任何光输入端口的光转换成另一波长的光，然后再输入到光耦合器。这种布置使得可以以低成本实现简单结构的全网格光网络系统。

37. 发明申请

US20050063043A1 Raman amplifier 有权
标题翻译：拉曼放大器
公开(公告)号：US20050063043A1
公开(公告)日：2005-03-24
申请号：US10715141
申请日：2003-11-18
申请人： Hiroshi Nakamoto , Takao Naito , Kenichi Torii , Toshiki Tanaka
发明人： Hiroshi Nakamoto , Takao Naito , Kenichi Torii , Toshiki Tanaka
IPC分类号： G02F1/35 , H01S3/30 , H01S3/00
CPC分类号： H04B10/2916 , H01S3/094076 , H01S3/094096 , H01S3/1022 , H01S3/302 , H04B2210/003
摘要： A plurality of pump light sources generate plural variations of pump light having different frequencies. A modulation circuit intensity-modulates the plural variations of pump light in the predetermined periods, respectively. A pump light pair whose frequency difference equals a Raman shift frequency are modulated such that they cannot simultaneously enters an emission state. A wavelength-multiplexer wavelength-multiplexes the plural variations of pump light modulated by the modulation circuit. A optical guide device guides the plural variations of pump light wavelength-multiplexed by the wavelength-multiplexer to an optical fiber.
摘要翻译：多个泵浦光源产生具有不同频率的泵浦光的多个变化。调制电路分别在预定时段内对泵浦光的多个变化进行强度调制。频率差等于拉曼位移频率的泵浦灯对被调制成不能同时进入发射状态。波长多路复用器对由调制电路调制的泵浦光的多个变化进行波长多路复用。光导装置将由波长多路复用器波长多路复用的泵浦光的多种变化引导到光纤。

38. 发明授权

US06791744B2 Raman amplification optical fiber, optical fiber coil, raman amplifier, and optical communication system 有权
标题翻译：拉曼放大光纤，光纤线圈，拉曼放大器和光通信系统
公开(公告)号：US06791744B2
公开(公告)日：2004-09-14
申请号：US10086833
申请日：2002-03-04
申请人： Eisuke Sasaoka , Motoki Kakui , Masashi Onishi , Toshiki Tanaka , Takao Naito
发明人： Eisuke Sasaoka , Motoki Kakui , Masashi Onishi , Toshiki Tanaka , Takao Naito
IPC分类号： H01S300
CPC分类号： G02B6/02028 , G02B6/02242 , G02B6/02252 , G02B6/03627 , G02B6/4457 , H01S3/06716 , H01S3/06725 , H01S3/06729 , H01S3/302 , H04B10/2916
摘要： The present invention relates to a Raman amplification optical fiber and the like comprising a structure which can Raman-amplify signal light including a plurality of wavelength components at a high efficiency and effectively restrain signal waveforms from deteriorating due to influences of nonlinear optical phenomena, while improving the degree of freedom in the design of optical fiber transmission lines and Raman amplifiers. As characteristics at each wavelength of signal light, the Raman amplification optical fiber has a chromatic dispersion with an absolute value of 6 ps/nm/km or more but 20 ps/nm/km or less, and an effective area Aeff of 20 &mgr;m2 or less, preferably less than 15 &mgr;m2. More preferably, as a characteristic at each wavelength of signal light, the Raman amplification optical fiber has a Raman gain coefficient GR/Aeff of 0.005 (W·m)−1 or more.
摘要翻译：拉曼放大光纤等技术领域本发明涉及一种能够高效率地拉曼放大包含多个波长成分的信号光的结构的拉曼放大用光纤等，并且能够有效地抑制由于非线性光学现象的影响而使信号波形恶化，光纤传输线和拉曼放大器设计的自由度。作为信号光的各波长的特性，拉曼放大光纤具有绝对值为6ps / nm / km以上且20ps / nm / km以下的色散，有效面积Aeff为20μm， 2>以下，优选小于15μm2。更优选地，作为信号光的每个波长的特性，拉曼放大光纤具有0.005（W.m）-1以上的拉曼增益系数GR / Aeff。

39. 发明授权

US06574038B2 Optical transmission path having sections which overcompensate for dispersion occurring in the sections 有权
公开(公告)号：US06574038B2
公开(公告)日：2003-06-03
申请号：US10115980
申请日：2002-04-05
申请人： Toshiki Tanaka , Takao Naito
发明人： Toshiki Tanaka , Takao Naito
IPC分类号： H04B1012
CPC分类号： H04B10/25253
摘要： An optical communication system which includes a transmission path through which a light is transmitted to a specific point, such as to a receiver. The transmission path includes a plurality of sections so that the light travels through the sections to the specific point. Each section overcompensates for dispersion produced in the respective section for the light so that an amount of dispersion for the light at the specific point is substantially zero.

40. 发明授权

US06433923B1 Optical transmission path having sections which overcompensate for dispersion occurring in the sections 有权
公开(公告)号：US06433923B1
公开(公告)日：2002-08-13
申请号：US09300595
申请日：1999-04-28
申请人： Toshiki Tanaka , Takao Naito
发明人： Toshiki Tanaka , Takao Naito
IPC分类号： H01S300
摘要： An optical communication system which includes a transmission path through which a light is transmitted to a specific point, such as to a receiver. The transmission path includes a plurality of sections so that the light travels through the sections to the specific point. Each section overcompensates for dispersion produced in the respective section for the light so that an amount of dispersion for the light at the specific point is substantially zero.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式