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51. 发明授权

US5729372A Optical transmission method and apparatus and optical amplification method and apparatus for optical communication system 失效
公开(公告)号：US5729372A
公开(公告)日：1998-03-17
申请号：US712958
申请日：1996-09-12
申请人： Takafumi Terahara , Terumi Chikama , Masuo Suyama , Takao Naito
发明人： Takafumi Terahara , Terumi Chikama , Masuo Suyama , Takao Naito
IPC分类号： G02F1/35 , H01S3/10 , H04B1/16 , H04B10/2507 , H04B10/2563 , H04B10/29 , H04B10/291 , H04B10/516 , H04B10/61 , H04B10/04
CPC分类号： H04B10/2572 , H04B10/291 , H04B10/2912 , H04B10/2918 , H04B10/2939 , H04B1/163
摘要： The invention provides an optical transmission method and apparatus suitable for use with a terminal station apparatus for an optical communication system for a very long distance of up to several thousands kilometers across an ocean as well as an optical amplification method and apparatus suitable for use with a repeater for an optical communication system. The methods and apparatus are improved in that the excessive loss in an optical amplifier and the variation of the branching ratio are suppressed to suppress the variation of the gain to suppress the polarization dependency of the loss or the gain on a transmission line of the optical communication system. The optical transmission apparatus comprises a depolarized light source for outputting depolarized light, and an external modulator for modulating light from the depolarized light source.

52. 发明授权

US08295703B2 Optical transmission apparatus 有权
标题翻译：光传输装置
公开(公告)号：US08295703B2
公开(公告)日：2012-10-23
申请号：US12585084
申请日：2009-09-02
申请人： Akira Miura , Hiroki Ooi , Takafumi Terahara
发明人： Akira Miura , Hiroki Ooi , Takafumi Terahara
IPC分类号： H04J14/02
CPC分类号： H04Q11/0005 , H04B10/25133 , H04J14/0205 , H04J14/0208 , H04J14/0209 , H04J14/0212 , H04J14/0213 , H04J14/0217 , H04Q2011/0039 , H04Q2011/0049
摘要： Where add optical signals have k different bit rates, an add controller is connected to k (
摘要翻译：在添加光信号具有k个不同比特率的情况下，添加控制器连接到N个输入端口的k（

53. 发明申请

US20100135664A1 Chromatic dispersion compensating apparatus 失效
标题翻译：色散补偿装置
公开(公告)号：US20100135664A1
公开(公告)日：2010-06-03
申请号：US12654752
申请日：2009-12-30
申请人： Hiroki Ooi , Takashi Iwabuchi , Takafumi Terahara , Junichi Kumasako , George Ishikawa , Tomoo Takahara
发明人： Hiroki Ooi , Takashi Iwabuchi , Takafumi Terahara , Junichi Kumasako , George Ishikawa , Tomoo Takahara
IPC分类号： H04J14/02
CPC分类号： H04B10/25133 , H04B2210/258
摘要： In order to compensate for chromatic dispersion ad dispersion slope over an entire wavelength band of the optical signal, the wavelength band is split into a plurality of bands, and chromatic dispersion compensation is made to make chromatic dispersion in a central wavelength of each of the bands zero.
摘要翻译：为了补偿在光信号的整个波长带上的色散和色散斜率，波长带被分成多个频带，并且进行色散补偿以使得每个频带的中心波长的色散零。

54. 发明授权

US07711270B2 Optical node and optical add/drop multiplexer 有权
标题翻译：光节点和光分插复用器
公开(公告)号：US07711270B2
公开(公告)日：2010-05-04
申请号：US11316941
申请日：2005-12-27
申请人： Hiroki Ooi , Takafumi Terahara , Jens C. Rasmussen , Akira Miura , Akihiko Isomura , Yuichi Akiyama
发明人： Hiroki Ooi , Takafumi Terahara , Jens C. Rasmussen , Akira Miura , Akihiko Isomura , Yuichi Akiyama
IPC分类号： H04B10/02 , H04J14/02
CPC分类号： H04J14/0294 , H04B10/032 , H04J14/0209 , H04J14/0212 , H04J14/0213 , H04J14/0217 , H04J14/022 , H04J14/0227 , H04J14/0241 , H04J14/0283 , H04J14/0284 , H04J14/0286 , H04J14/0295
摘要： The optical node connects N networks to each other (where N is an integer larger than one). Each of the N networks respectively includes a first transmission path and a second transmission path. The optical node includes a switching unit that connects the first transmission path of one network of the N networks to other (N−1) networks; a failure detector that detects failure in the first transmission path of the network; and a control unit that causes the switching unit to connect the second transmission path of the network to the other (N−1) networks when the failure is detected.
摘要翻译：光节点将N个网络相互连接（其中N是大于1的整数）。 N个网络中的每一个分别包括第一传输路径和第二传输路径。光节点包括将N个网络的一个网络的第一传输路径连接到其他（N-1）个网络的交换单元; 检测网络的第一传输路径中的故障的故障检测器; 以及控制单元，当检测到故障时，使得切换单元将网络的第二传输路径连接到另一（N-1）网络。

55. 发明申请

US20100028007A1 Optical transmission apparatus 有权
标题翻译：光传输装置
公开(公告)号：US20100028007A1
公开(公告)日：2010-02-04
申请号：US12585084
申请日：2009-09-02
申请人： Akira Miura , Hiroki Ooi , Takafumi Terahara
发明人： Akira Miura , Hiroki Ooi , Takafumi Terahara
IPC分类号： H04J14/02
CPC分类号： H04Q11/0005 , H04B10/25133 , H04J14/0205 , H04J14/0208 , H04J14/0209 , H04J14/0212 , H04J14/0213 , H04J14/0217 , H04Q2011/0039 , H04Q2011/0049
摘要： Where add optical signals have k different bit rates, an add controller is connected to k (
摘要翻译：在添加光信号具有k个不同比特率的情况下，添加控制器连接到N个输入端口的k（

56. 发明授权

US07620321B2 Optical transmitting apparatus, method of increasing the number of paths of the apparatus, and optical switch module for increasing the number of paths of the apparatus 有权
标题翻译：光发送装置，增加设备路径数量的方法以及用于增加设备路径数量的光开关模块
公开(公告)号：US07620321B2
公开(公告)日：2009-11-17
申请号：US11092547
申请日：2005-03-29
申请人： Akira Miura , Hiroki Ooi , Takeshi Hoshida , Takafumi Terahara
发明人： Akira Miura , Hiroki Ooi , Takeshi Hoshida , Takafumi Terahara
IPC分类号： H04J14/00
CPC分类号： H04Q11/0005 , H04J14/0209 , H04J14/0212 , H04J14/0213 , H04J14/0217 , H04Q2011/0009 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/003 , H04Q2011/0032
摘要： An optical transmitting apparatus is configured such that K pieces of output ports of optical path switching units whose input port is connected to k-th input transmission path are connected to first to K-th output transmission paths except for the k-th output transmission path and to the k-th input port of a dropping unit, and the optical path switching units and the dropping unit outputs light of wavelength which is part or all of WDM light received from said input port from a specific output port, and can output light having a wavelength different from that of the light output from said specific output port from an output port different from said specific output port. Accordingly, while largely reducing the number of optical fiber patch cords necessary in an optical transmitting apparatus and largely reducing the number of spare ports, the flexible expansion of apparatus function can be realized.
摘要翻译：光发送装置被配置为使得输入端口连接到第k输入传输路径的光路切换单元的K个输出端口连接到除第k输出传输路径之外的第一至第K输出传输路径并将光路切换部和滴下部从特定的输出端口输出从所述输入口接收到的WDM光的一部分或全部的波长的光，并输出光具有与从所述特定输出端口输出的光的波长不同于与所述特定输出端口不同的输出端口的波长。因此，在大大减少光发送装置所需的光纤跳线的数量的同时大大减少备用端口的数量的情况下，可以实现设备功能的灵活扩展。

57. 发明授权

US07616893B2 Wavelength division multiplexing optical repeating transmission method and repeating apparatus 失效
标题翻译：波分复用光中继传输方法和中继装置
公开(公告)号：US07616893B2
公开(公告)日：2009-11-10
申请号：US10781783
申请日：2004-02-20
申请人： Hiroki Ooi , Takashi Iwabuchi , Takafumi Terahara , George Ishikawa
发明人： Hiroki Ooi , Takashi Iwabuchi , Takafumi Terahara , George Ishikawa
IPC分类号： H04J14/02
CPC分类号： H04J14/0201 , H04B10/2513
摘要： A repeating apparatus disposed at an end point of each divisional repeating interval of a light transmission line performs a first dispersion compensation step, an optical add/drop multiplexing step and a second dispersion compensation step to perform repeating transmission. The ratio of an over compensation amount at the second dispersion compensation step to the sum of dispersion compensation amounts at the first and second dispersion compensation steps is set so as to gradually vary together with the transmission distance from the terminal apparatus for transmission at which the repeating apparatus is disposed on the light transmission line so that degradation of wavelengths to be received by the terminal apparatus for reception is suppressed while dispersion compensation is performed with a high degree of accuracy at each optical add/drop multiplexing point on the transmission line.
摘要翻译：设置在光传输线的每个分割重复间隔的终点处的中继装置执行第一色散补偿步骤，光分插复用步骤和第二色散补偿步骤，以执行重复发送。在第二色散补偿步骤中的过度补偿量与第一和第二色散补偿步骤之间的色散补偿量之和的比率被设置为随着与重复发送的终端装置的传输距离一起逐渐变化装置设置在光传输线上，从而抑制由终端装置接收的波长的劣化，同时在传输线上的每个光分插复用点处以高精度执行色散补偿。

58. 发明授权

US07382979B2 Wavelength dispersion compensation design method and a system thereof 有权
标题翻译：波长色散补偿设计方法及其系统
公开(公告)号：US07382979B2
公开(公告)日：2008-06-03
申请号：US11316961
申请日：2005-12-27
申请人： Yuichi Akiyama , Takafumi Terahara , Takeshi Hoshida , Hisao Nakashima
发明人： Yuichi Akiyama , Takafumi Terahara , Takeshi Hoshida , Hisao Nakashima
IPC分类号： H04B10/08 , H04B10/12 , H04B10/00 , H04J14/02
CPC分类号： H04B10/2513
摘要： The present invention discloses a design method of wavelength dispersion compensation of a desired link that is extracted from an optical network, the link including two or more spans, and two or more nodes (N1, N4) that are equipped with an add/drop function, as shown in FIG. 2. All residual dispersion ranges of paths that reach corresponding nodes are adjusted to fall within predetermined tolerable residual dispersion ranges that are set up for all the paths of the link by adjusting wavelength dispersion compensators provided to each of the spans.
摘要翻译：本发明公开了一种从光网络提取的期望链路的波长色散补偿的设计方法，包括两个或多个跨度的链路，以及两个或更多个节点（N 1，N 4），其配备有添加/ drop功能，如图3所示。 2。通过调整提供给每个跨度的波长色散补偿器，到达对应节点的路径的所有残余色散范围被调整到落在通过链路的所有路径设置的预定容许残余色散范围内。

59. 发明申请

US20080056715A1 Optical transmission apparatus having OADM function 有权
标题翻译：具有OADM功能的光传输设备
公开(公告)号：US20080056715A1
公开(公告)日：2008-03-06
申请号：US11651599
申请日：2007-01-10
申请人： Yuichi Akiyama , Takafumi Terahara , Hiroki Ooi
发明人： Yuichi Akiyama , Takafumi Terahara , Hiroki Ooi
IPC分类号： H04J14/00
CPC分类号： H04Q11/0005 , H04J14/0204 , H04J14/0205 , H04J14/0209 , H04J14/0212 , H04J14/0213 , H04J14/0216 , H04J14/0217 , H04J14/0219 , H04Q2011/0035 , H04Q2011/006
摘要： An optical transmission apparatus has a first wavelength selective switch (WSS) for route switching, provided with respect to each route, to selectively output signal light from a first input route to second through Nth output routes and to selectively output signal lights from second through Nth input routes to a first output route, for every wavelength, a second WSS for add and drop, to selectively output a signal light from an add port to the first through Nth output routes via the first WSS for every wavelength, and to selectively output the signal lights from the first through Nth input routes to a drop port via the first WSS for every wavelength, and an optical coupler to multiplex each of the signal lights output from the first WSS to the output routes and each of the signal lights output from the second WSS to the output routes, for every route, and to send multiplexed signal light to a first WSS of an other route, and to branch and supply multiplexed signal light input from said other route to the first WSS and the second WSS. The signal lights input and output by the first WSS and the second WSS are transmitted bidirectionally within a single optical transmission line.
摘要翻译：光传输装置具有用于路由切换的第一波长选择开关（WSS），其针对每条路线，选择性地将来自第一输入路径的信号光输出到第二至第N输出路径，并选择性地从第二到第N输出信号光输入到第一输出路线的路由，对于每个波长，第二个用于加和减的WSS，用于经由第一WSS为每个波长选择性地输出来自加法端口的信号光到第一至第N输出路由，并选择性地输出从第一至第N输入的信号灯经由用于每个波长的第一WSS到达分接口，以及光耦合器，用于将从第一WSS输出的每个信号光复用到输出路径，并且每个信号光从对于每个路由，将第二WSS发送到输出路由，并将多路复用的信号光发送到另一路由的第一WSS，并分支和提供从sa输入的复用信号光 id其他路由到第一个WSS和第二个WSS。由第一WSS和第二WSS输入和输出的信号灯在单个光传输线内双向传输。

60. 发明授权

US07307782B2 Raman amplifier and optical communication system including the same 失效
标题翻译：拉曼放大器和光通信系统包括相同
公开(公告)号：US07307782B2
公开(公告)日：2007-12-11
申请号：US10208198
申请日：2002-07-31
申请人： Tetsufumi Tsuzaki , Motoki Kakui , Takafumi Terahara , Junichi Kumasako
发明人： Tetsufumi Tsuzaki , Motoki Kakui , Takafumi Terahara , Junichi Kumasako
IPC分类号： H01S3/00
CPC分类号： H01S3/302 , H01S3/06725 , H01S3/06754 , H01S3/094003 , H01S3/09408 , H01S3/094096
摘要： The present invention relates to a Raman amplifier where flexibility in device design considering both of Raman amplification and dispersion compensation is high. In the Raman amplifier, the Raman amplification optical fiber included in the optical amplification section and the dispersion compensating optical fiber included in the dispersion compensation section are arranged while being optically connected to each other. Since the optical amplification section and the dispersion compensation section are provided as independent optical devices, one device can be designed without being restricted to the design conditions of the other device.
摘要翻译：拉曼放大器本发明涉及考虑拉曼放大和色散补偿的器件设计中的灵活性高的拉曼放大器。在拉曼放大器中，包括在光放大部分中的拉曼放大光纤和包括在色散补偿部分中的色散补偿光纤被布置成彼此光学连接。由于光放大部分和色散补偿部分被设置为独立的光学器件，所以可以设计一个器件而不限于另一个器件的设计条件。

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