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1. 发明授权

US06930823B2 Optical transmission method and optical transmission system utilizing Raman amplification 有权
标题翻译：光传输方法和利用拉曼放大的光传输系统
公开(公告)号：US06930823B2
公开(公告)日：2005-08-16
申请号：US10022543
申请日：2001-12-20
申请人： Hiroshi Nakamoto , Takao Naito , Naomasa Shimojoh , Toshiki Tanaka
发明人： Hiroshi Nakamoto , Takao Naito , Naomasa Shimojoh , Toshiki Tanaka
IPC分类号： G02F1/35 , H01S3/067 , H01S3/094 , H01S3/10 , H01S3/102 , H01S3/131 , H01S3/16 , H01S3/30 , H04B10/07 , H04B10/077 , H04B10/29 , H04B10/291 , H01S3/00 , H04B10/08
CPC分类号： H04B10/2916 , H01S3/06754 , H01S3/094096 , H01S3/1301 , H01S3/1608 , H01S3/302 , H04B10/0775 , H04B2210/074
摘要： The present invention has an object to provide an optical transmission technology using Raman amplification wherein a supervisory signal transferred among a plurality of optical transmission apparatuses is superimposed on a main signal light by using a pumping light for Raman amplification. To this end, a Raman amplifier applied with the optical transmission method of the present invention, is provided with a supervisory signal superimposing section for superimposing a supervisory signal transferred among the optical transmission apparatuses on at least one of a plurality of pumping lights of different wavelengths to be supplied to a Raman amplification medium via a multiplexer from a pumping light generating section, thereby transmitting the main signal light propagated through the Raman amplification medium to be Raman amplified, which is superimposed with the supervisory signal.
摘要翻译：本发明的目的是提供一种使用拉曼放大的光传输技术，其中通过使用用于拉曼放大的泵浦光将多个光传输装置之间传输的监视信号叠加在主信号光上。为此，应用本发明的光传输方法的拉曼放大器设置有监视信号叠加部分，用于将在光传输装置之间传送的监控信号叠加在不同波长的多个泵浦光中的至少一个上通过来自泵浦光产生部分的多路复用器提供给拉曼放大介质，从而将通过拉曼放大介质传播的主信号光传输为与监控信号叠加的拉曼放大。

2. 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。

3. 发明授权

US07379233B2 Raman amplifier utilizing pump modulation for expanding gain band width 有权
标题翻译：拉曼放大器利用泵调制扩大增益带宽
公开(公告)号：US07379233B2
公开(公告)日：2008-05-27
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： H04B10/17
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。

4. 发明授权

US07577361B2 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：US07577361B2
公开(公告)日：2009-08-18
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： H04J14/02
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。

5. 发明申请

US20080226303A1 DISPERSION-MANAGED OPTICAL TRANSMISSION SYSTEM 失效
标题翻译：分散管理的光传输系统
公开(公告)号：US20080226303A1
公开(公告)日：2008-09-18
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： H04B10/00
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。

6. 发明授权

US07209654B2 Optical transmission system 有权
标题翻译：光传输系统
公开(公告)号：US07209654B2
公开(公告)日：2007-04-24
申请号：US09962116
申请日：2001-09-26
申请人： Toshiki Tanaka , Takao Naito
发明人： Toshiki Tanaka , Takao Naito
IPC分类号： H04B10/08 , H04B10/12 , H04B10/00 , H04J14/02
CPC分类号： H04B10/2916 , H04B10/25253
摘要： A plurality of optical repeaters are provided on a transmission line between an optical transmitting station and an optical receiving station. A combined transmission line section is provided between optical repeaters. The combined transmission line section is composed of the first optical fiber, which is a positive-dispersion fiber, and the second optical fiber, which is a negative-dispersion fiber. Signal light is inputted to the first optical fiber in each combined transmission line section. Each optical repeater inputs pump light to the second optical fiber.
摘要翻译：在光发送站和光接收站之间的传输线上设置多个光中继器。在光中继器之间提供组合传输线部分。组合传输线部分由作为正色散光纤的第一光纤和作为负色散光纤的第二光纤组成。在每个组合的传输线路段中，信号光被输入到第一光纤。每个光中继器将泵浦光输入到第二光纤。

7. 发明授权

US07034991B2 Optical amplification and transmission system 失效
公开(公告)号：US07034991B2
公开(公告)日：2006-04-25
申请号：US09970982
申请日：2001-10-05
申请人： Takao Naito , Toshiki Tanaka
发明人： Takao Naito , Toshiki Tanaka
IPC分类号： H01S3/00
CPC分类号： H04B10/2918 , H04B10/2525 , H04B10/2916 , H04B2210/003
摘要： An optical transmission line including first, second and third fibers so that an optical signal travels through the first, second and third fibers, in order. The first fiber has a positive dispersion for a wavelength of the optical signal. The second fiber has a negative dispersion for the wavelength of the optical signal and a mode field diameter smaller than a mode field diameter of the first fiber. The third fiber has a mode field diameter smaller than the mode field diameter of the second fiber. Pump light is provided to the third fiber so that Raman amplification occurs in the transmission line.

8. 发明申请

US20050196168A1 Optical connection switching apparatus and management control unit thereof 审中-公开
标题翻译：光连接交换装置及其管理控制单元
公开(公告)号：US20050196168A1
公开(公告)日：2005-09-08
申请号：US10873257
申请日：2004-06-23
申请人： Kouichirou Amemiya , Takao Naito , Toru Katagiri , Toshiki Tanaka
发明人： Kouichirou Amemiya , Takao Naito , Toru Katagiri , Toshiki Tanaka
IPC分类号： H04J14/00 , H04Q11/00
CPC分类号： H04Q11/0062 , H04Q11/0071
摘要： An optical connection switching according to the present invention comprises an optical connection switching fabric capable of making a connection between any one of optical input ports and any one of optical output ports, one or more optical transceiving units connected to a part of the optical input/output ports, and a management control unit for controlling the optical connection switching fabric to make a connection between the optical input/output port connected to the optical transceiving unit and the optical input/output port connected to the equipment for acquiring and managing information on the equipment by making a communication with the equipment through the use of the optical transceiving unit. This enables acquiring the information on the equipment having an optical communication interface to be optically connected, thereby automating the connection management of the equipment.
摘要翻译：根据本发明的光连接交换包括光连接交换结构，其能够在光输入端口和光输出端口中的任一个之间进行连接，一个或多个光收发单元连接到光输入/ 输出端口和管理控制单元，用于控制光连接交换结构，以连接到光收发单元的光输入/输出端口与连接到设备的光输入/输出端口之间的连接，用于获取和管理关于设备通过使用光收发单元与设备进行通信。这使得能够获取具有光学连接的光通信接口的设备的信息，从而使设备的连接管理自动化。

9. 发明申请

US20050036790A1 Method and system for optical fiber transmission using Raman amplification 审中-公开
标题翻译：使用拉曼放大的光纤传输方法和系统
公开(公告)号：US20050036790A1
公开(公告)日：2005-02-17
申请号：US10943261
申请日：2004-09-17
申请人： Toshiki Tanaka , Takao Naito
发明人： Toshiki Tanaka , Takao Naito
IPC分类号： H01S3/094 , H01S3/10 , H01S3/30 , H04B10/077 , H04B10/079 , H04B10/291 , H04B10/02
CPC分类号： H04B10/2916 , H01S3/094046 , H01S3/1003 , H01S3/30 , H01S3/302 , H04B10/077 , H04B10/07955
摘要： A variable optical attenuator for attenuating the signal light is provided in an optical fiber transmission line for transmission of signal light while performing Raman amplification, and the attenuation of the variable optical attenuator is adjusted based on the optical power detected at the reception terminal of the optical fiber transmission line.
摘要翻译：用于衰减信号光的可变光衰减器设置在用于传输信号光的光纤传输线中，同时执行拉曼放大，并且可变光衰减器的衰减基于在光学器件的接收端检测到的光功率光纤传输线。

10. 发明授权

US06831777B2 Optical transmission system and method 有权
标题翻译：光传输系统及方法
公开(公告)号：US06831777B2
公开(公告)日：2004-12-14
申请号：US09939700
申请日：2001-08-28
申请人： Toshiki Tanaka , Takao Naito
发明人： Toshiki Tanaka , Takao Naito
IPC分类号： H01S300
CPC分类号： H04B10/294 , H04B10/2916 , H04B10/2918
摘要： A plurality of Raman amplifiers are positioned on a transmission line over which a multi-wavelength light is transmitted. Each of the Raman amplifiers uses a plurality of pump lights &lgr;1 through &lgr;4. When a fault occurs in a pump light source producing the pump light &lgr;3 in a particular Raman amplifier among the plurality of Raman amplifiers, the power of the pump light &lgr;3 is raised in another or other Raman amplifiers.
摘要翻译：多个拉曼放大器位于传输多波长光的传输线上。每个拉曼放大器使用多个泵浦灯λ1至λ4。当在多个拉曼放大器中产生特定拉曼放大器中的泵浦光λ3的泵浦光源中发生故障时，泵浦光λ3的功率在另一个或其它拉曼放大器中升高。

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