公开(公告)号：US20160329964A1

公开(公告)日：2016-11-10

申请号：US15146507

申请日：2016-05-04

申请人： CESNET, zajmove sdruzeni pravnickych osob

发明人： Josef VOJTECH ,  Jan RADIL ,  Radan SLAVÍK ,  Stanislav SÍMA ,  Ondrej HAVLIS

IPC分类号： H04B10/25 ,  H04B10/079

CPC分类号： H04B10/2503 ,  H04B10/07955 ,  H04B10/07957 ,  H04B10/2914 ,  H04B10/2971

摘要： Modular kit of the spectrally flexible device for bidirectional transmissions of optical signals sensitive to timing in the Internet and other networks in the basic embodiment contains the source of the optical holding signal, which is electrically bi-directionally interconnected with the control electronics module. This source of the optical holding signal is optically interconnected is optically interconnected by its one output via the first isolator and the first wave-sensitive coupler with one optical input/output of the semiconductor optical amplifier and/or the second output of the source of the optical holding signal is interconnected via the second isolator and the second wave-sensitive coupler with the second optical input/output of the semiconductor optical amplifier. Semiconductor optical amplifier is electrically bi-directionally interconnected with the control electronics module, the input of which is connected to the output of the power supply module.

摘要翻译： 用于在基本实施例中对因特网和其他网络中的定时敏感的光信号的双向传输的光谱灵活设备的模块化套件包含与控制电子模块电气双向互连的光学保持信号的源。 光学保持信号的光源通过其一个输出经由第一隔离器和第一波长敏感耦合器与半导体光放大器的一个光输入/输出和/或源的第二输出光学互连 光保持信号通过第二隔离器和第二波敏感耦合器与半导体光放大器的第二光输入/输出互连。 半导体光放大器与控制电子模块电气双向互连，其输入端连接到电源模块的输出端。

公开(公告)号：US08077385B2

公开(公告)日：2011-12-13

申请号：US12475614

申请日：2009-06-01

申请人： Chun-Liang Yang ,  Dar-Zu Hsu ,  San-Liang Lee ,  Jian-Ting Hong

发明人： Chun-Liang Yang ,  Dar-Zu Hsu ,  San-Liang Lee ,  Jian-Ting Hong

IPC分类号： H01S4/00 ,  H04B10/12 ,  G02B27/28

CPC分类号： H04B10/2971

摘要： A reconfigurable optical amplifier including a first reversible optical circulator and an optical gain device is provided. The first reversible optical circulator has four I/O ports which are respectively referred to as a first terminal, a second terminal, a third terminal, and a fourth terminal. The four I/O ports sequentially transmit an optical signal in a transmission direction of a forward circulation or a backward circulation according to a control signal. The first terminal is isolated from the adjacent fourth terminal. The optical gain device is connected between the first terminal and the adjacent fourth terminal. The second terminal and the third terminal are respectively connected to a first communication node and a second communication node.

摘要翻译： 提供了包括第一可逆光环行器和光增益器件的可重构光放大器。 第一可逆光环行器具有分别被称为第一端子，第二端子，第三端子和第四端子的四个I / O端口。 四个I / O端口根据控制信号顺序地在正向循环或后向循环的传输方向上发送光信号。 第一个终端与相邻的第四个终端隔离。 光增益装置连接在第一端子和相邻的第四端子之间。 第二终端和第三终端分别连接到第一通信节点和第二通信节点。

公开(公告)号：US07734180B2

公开(公告)日：2010-06-08

申请号：US10844513

申请日：2004-05-13

申请人： Wakako Maeda ,  Akio Tajima

发明人： Wakako Maeda ,  Akio Tajima

IPC分类号： H04J14/02 ,  H04B10/12

CPC分类号： H04B10/2525 ,  H04B10/2971 ,  H04B10/40 ,  H04B2210/252 ,  H04B2210/254 ,  H04J14/0221

摘要： The present invention provides a single fiber bidirectional optical transmission system capable of realizing the extension of a single fiber bidirectional long distance at a moderate price.An optical signal outputted from a second optical transmitter is incident on an optical amplifying portion passing through an optical circulator, a single fiber bidirectional transmission path, an optical circulator and an optical Blue/Red filter. The optical signal outputted from a first optical transmitter is incident on the optical amplifying portion passing through a dispersion compensator and the optical Blue/Red filter. By inserting the dispersion compensator immediately after the first optical transmitter, a difference between a power level by which the optical signal from the first transmitter is inputted to the optical amplifier and the power level by which the optical signal from the second optical transmitter is inputted to the optical amplifier is made small, so that, even when the optical amplifier is installed at one end of the transmission path, both of the bidirectional signals can obtain sufficient gains, thereby realizing a bidirectional collective amplification.

摘要翻译： 本发明提供一种单纤双向光传输系统，其能够以适中的价格实现单光纤双向长距离的扩展。 从第二光发射机输出的光信号入射到通过光循环器，单光纤双向传输路径，光环行器和光/蓝/红滤光片的光放大部分。 从第一光发射机输出的光信号入射到通过色散补偿器和光/蓝/红滤光片的光放大部分上。 由所述第一光发送器后，立即在插入色散补偿器，一个功率电平之间的差由从第一发射器的光信号被输入到由从所述第二光发送器的光信号被输入到光放大器和功率电平 光放大器是由小的，所以，即使当光放大器设置在传输路径的一端，这两个双向信号可以得到足够的增益，从而实现双向集体扩增。

公开(公告)号：US07336414B2

公开(公告)日：2008-02-26

申请号：US10534310

申请日：2004-06-16

申请人： Masamichi Fujiwara ,  Junichi Kani ,  Koji Akimoto ,  Katsumi Iwatsuki

发明人： Masamichi Fujiwara ,  Junichi Kani ,  Koji Akimoto ,  Katsumi Iwatsuki

IPC分类号： H01S3/00

CPC分类号： H04B10/2587 ,  H04B10/2971 ,  H04B2210/258 ,  H04J14/02

摘要： An optical modulation apparatus is provided which implements a stable amplifying function by reducing the effect of reflected light rays form end faces of a bidirectional optical amplifier by imposing a numerical limitation on the relationship between the gain of the bidirectional optical amplifier and the loss of the optical modulator, or by inserting a polarization rotation section in a reflection type optical modulator including the bidirectional optical amplifier or in a multi-wavelength collective optical modulation system combining the multiple optical modulators. An optical modulation apparatus is provided which implements a stable amplifying function and cost reduction by reducing the effect of reflected light rays by interposing optical isolators at every alternate SOAs in a transmission-type optical modulation apparatus including a plurality of semiconductor optical amplifiers (SOAs) connected in a multistage fashion.

摘要翻译： 提供一种光调制装置，其通过对双向光放大器的增益与光学损耗之间的关系施加数值限制来减小由双向光放大器的端面反射的反射光的影响来实现稳定的放大功能 或者通过在包括双向光放大器的反射型光调制器中插入偏振旋转部分，或者在组合多个光调制器的多波长集合光调制系统中。 提供了一种光调制装置，其通过在包括连接的多个半导体光放大器（SOA）的透射型光调制装置中的每个替代的SOA处插入光隔离器来减小反射光线的影响，从而实现了稳定的放大功能和成本降低 以多层次的方式。

公开(公告)号：US06970650B2

公开(公告)日：2005-11-29

申请号：US10477535

申请日：2003-02-26

申请人： Satoshi Kajiya ,  Kaoru Kinjo ,  Takashi Mizuochi

发明人： Satoshi Kajiya ,  Kaoru Kinjo ,  Takashi Mizuochi

IPC分类号： G02F1/35 ,  H01S3/10 ,  H01S3/30 ,  H04B10/00 ,  H04B10/2563 ,  H04J14/00 ,  H04J14/02

CPC分类号： H04B10/2971 ,  H04B10/2503 ,  H04B10/2916

摘要： In a one-fiber bidirectional optical transmission system in which output optical signals of optical transmitter-receivers respectively connected to the opposite ends of one optical fiber transmission line are bidirectionally transmitted in the optical fiber transmission line, which utilizes a Raman amplification effect by backward pumping, a frequency satisfying the conditions of |fs1−f0|≠|fp2−f0| and |fs2−f0|≠|fp1−f0| is selected, where f0 is a zero dispersion frequency of the optical fiber transmission line, fs1 and fs2 are the frequencies of the first signal and the second signal, respectively, and fp1 and fp2 are frequencies of the first Raman pump light and the second Raman pump light, respectively.

摘要翻译： 在单纤双向光传输系统中，其中分别连接到一根光纤传输线的相对端的光发射器 - 接收器的输出光信号在光纤传输线中双向传输，其利用通过反向泵浦的拉曼放大效应 满足以下条件的频率满足条件| f | ＆lt; f＆gt;＆lt;＆lt;＆lt;＆lt; /＆gt; 被选择，其中f 0是光纤传输线的零色散频率，f s1和f 2 s 2是第一个 信号和第二信号，f 1 p1和f 2 p 2分别是第一拉曼泵浦光和第二拉曼泵浦光的频率。

公开(公告)号：US06941074B2

公开(公告)日：2005-09-06

申请号：US09800891

申请日：2001-03-08

申请人： Kentaro Nakamura ,  Takafumi Terahara ,  Junichi Kumasako ,  Rainer Hainberger

发明人： Kentaro Nakamura ,  Takafumi Terahara ,  Junichi Kumasako ,  Rainer Hainberger

IPC分类号： H01S3/30 ,  H01S3/06 ,  H01S3/067 ,  H04B10/00 ,  H04B10/29 ,  H04B10/294 ,  H04B10/297 ,  H04J14/00 ,  H04J14/02 ,  H04L5/14 ,  H04B10/02 ,  H04B10/08 ,  H04B10/12

CPC分类号： H04B10/2971 ,  H04B10/2503 ,  H04B10/2916

摘要： Different bands (C-band and L-band) are allotted respectively to an upstream optical signal and a downstream optical signal. In a transmission-path optical fiber for Raman amplification, the C-band optical signal is amplified by pumping light from a C-band pumping light source, and the L-band optical signal is amplified by pumping light from an L-band pumping light source. As a result of this configuration, the optical signals are Raman-amplified through backward pumping in both upstream and downstream directions, whereby negative effects, which could be exerted on the optical signals by forward pumping, can be avoided.

摘要翻译： 分别将不同的频带（C波段和L波段）分配给上行光信号和下行光信号。 在用于拉曼放大的传输路径光纤中，C波段光信号通过泵浦来自C波段泵浦光源的光而被放大，并且L波段光信号通过泵浦来自L波段泵浦光的光而被放大 资源。 作为该结构的结果，光信号通过在上下游方向上的反向泵浦而被拉曼放大，由此可以避免通过正向泵浦对光信号施加的负面影响。

公开(公告)号：US20040114926A1

公开(公告)日：2004-06-17

申请号：US10458171

申请日：2003-06-10

发明人： Sung-Kee Kim ,  Young-Hun Joo ,  Seong-Taek Hwang

IPC分类号： H04B010/20

CPC分类号： H04J14/0216 ,  H04B10/2971 ,  H04J14/02 ,  H04J14/0208 ,  H04J14/0227

摘要： A bi-directional path switched ring optical transmission node has a simple configuration which reduces the influence of a wave reflected by an obstacle on optical line. The BPSR optical transmission node connects to a first optical line through which an odd channel signal and an even channel signal are transmitted to and from the BPSR optical transmission node in directions opposite to each other. The BPSR optical transmission node further connects to a second optical line through which the odd channel signal and the even channel signal are transmitted from and to the BPSR optical transmission node in directions opposite to each other. The BPSR optical transmission node includes a node section for directing the odd channel signal and the even channel signal in an equal direction, amplifying the odd channel signal and the even channel signal, dropping/adding a desired channel from/to the odd channel signal and the even channel signal, and then allowing each of the odd channel signal and the even channel signal to proceed in a direction traveled by that channel signal upon arriving at the BPSR optical transmission node; and filtering sections coupled between the node section and respective optical lines, the filtering sections allowing only one of the odd channel signal and the even channel signal to pass without attenuating the signal.

摘要翻译： 双向路径交换环形光传输节点具有简单的配置，其减少由障碍物反射的波对光线路的影响。 BPSR光传输节点连接到第一光线路，通过该第一光线路将奇信道信号和偶信道信号以彼此相反的方向传输到BPSR光传输节点。 BPSR光传输节点进一步连接到第二光线路，奇数信道信号和偶信号信号通过该第二光线从彼此相反的方向传输到BPSR光传输节点。 BPSR光传输节点包括用于在相同方向上引导奇信道信号和偶信道信号的节点部分，放大奇信道信号和偶信道信号，从奇信道信号中丢弃/添加所需信道， 偶数信道信号，然后允许奇数信道信号和偶数信道信号中的每一个在到达BPSR光传输节点时沿着该信道信号行进的方向进行; 以及耦合在节点部分和相应光线路之间的滤波部分，滤波部分仅允许奇数信道信号和偶数信道信号中的一个通过而不衰减信号。

公开(公告)号：US06388805B1

公开(公告)日：2002-05-14

申请号：US09820266

申请日：2001-03-28

申请人： Derek Spock ,  Murat Azizoglu ,  Jonathan C. Bloch

发明人： Derek Spock ,  Murat Azizoglu ,  Jonathan C. Bloch

IPC分类号： H01S300

CPC分类号： H04B10/2971 ,  H01S3/06754 ,  H01S3/06783 ,  H01S3/06787

摘要： An optical amplifier for a 4-fiber system having two inputs and outputs is provided that makes use of a single amplifier rather than two separate amplifiers. The optical amplifier node makes use of an interleaver before and after the single amplifier to demultiplex and multiplex even and odd channel signals traveling in opposite directions. The optical amplifier node can be combined with other like amplifier nodes to provide more complex amplifier solutions at reduced costs due to the need for only half of the typical number of amplifiers. The optical amplifier node can also be combined with, e.g., variable optical attenuators, L/C filters, channel add/drop, and dispersion compensation modules to modify the optical signals as desired.

摘要翻译： 提供了具有两个输入和输出的用于4光纤系统的光放大器，其利用单个放大器而不是两个单独的放大器。 光放大器节点利用单放大器之前和之后的交织器来解复用和复用沿相反方向行进的偶信道信号和奇信道信号。 由于仅需要典型数量的放大器的一半，光放大器节点可以与其他类似的放大器节点组合以便以更低的成本提供更复杂的放大器解决方案。 光放大器节点还可以与例如可变光衰减器，L / C滤波器，信道分插和色散补偿模块组合以根据需要修改光信号。

公开(公告)号：US06175444B1

公开(公告)日：2001-01-16

申请号：US09203587

申请日：1998-12-02

申请人： Atsushi Toyohara

发明人： Atsushi Toyohara

IPC分类号： H01S300

CPC分类号： H04B10/2971 ,  H01S3/10023 ,  H04B10/2912

摘要： A bi-directional optical amplifier according to the present invention comprises: an optical circulator with four ports; a first and second optical amplification fibers, each optically amplifying an entered signal light with the help of a pumping light; two pumping light sources, each outputting a pumping light; two optical couplers; and a wave-length selection/reflection filter which selectively reflects a specific wave-length of a signal light. The optical circulator, comprising four ports, a first to fourth ports, outputs entered lights one after another to each adjacent port. The first and second optical amplification fibers are connected to the first and third ports of the optical circulator, respectively.

摘要翻译： 根据本发明的双向光放大器包括：具有四个端口的光循环器; 第一和第二光学放大光纤，每个在泵浦光的帮助下光学放大输入的信号光; 两个泵浦光源，每个输出一个泵浦光; 两个光耦合器; 以及选择性地反射信号光的特定波长的波长选择/反射滤波器。 光环行器包括四个端口，第一至第四端口，一个接一个地将输入的光输出到每个相邻的端口。 第一和第二光放大光纤分别连接到光循环器的第一和第三端口。

公开(公告)号：US6091542A

公开(公告)日：2000-07-18

申请号：US179892

申请日：1998-10-28

申请人： Tae Su Yang

发明人： Tae Su Yang

IPC分类号： H01S3/067 ,  H01S3/094 ,  H01S3/16 ,  H04B10/297 ,  H01S3/00

CPC分类号： H04B10/2971 ,  H01S3/06754 ,  H01S2303/00 ,  H01S3/06787 ,  H01S3/094003 ,  H01S3/094096 ,  H01S3/1608

摘要： An optical amplifier for amplifying signal lights propagating in two opposite directions comprises a 1st and a 2nd transmitters for generating a 1st and a 2nd signal lights, respectively, a 1st and a 2nd receivers for receiving the 1st and the 2nd signal lights, respectively, a fiber amplifier for amplifying the signal lights, a 1st optical device including a 1st and a 2nd wavelength division multiplexing(WDM) couplers, a 1st and a 2nd isolators, a 2nd optical device including a 3rd and a 4th WDM couplers, a 3rd and a 4th isolators and a pair of light sources for pumping the fiber amplifier. In the optical amplifier, the 1st WDM coupler selectively transmits the 1st signal light from the 1st transmitter to the fiber amplifier via the 1st isolator and the 2nd WDM coupler, and the 2nd WDM coupler selectively transmits the 2nd signal light from the 2nd transmitter to the 2nd receiver via the 2nd isolator and the 1st WDM coupler. The 3rd WDM coupler selectively transmits the 1st signal light from the fiber amplifier to the 1st receiver via the 3rd isolator and the 4th WDM coupler, and the 4th WDM coupler selectively transmits the 2nd signal light from the 2nd transmitter to the fiber amplifier via the 4th isolator and the 3rd WDM coupler.

摘要翻译： 用于放大沿两个相反方向传播的信号光的光放大器包括分别产生第一和第二信号光的第一和第二发射器，分别用于接收第一和第二信号灯的第一和第二接收器，a 用于放大信号光的光纤放大器，包括第一和第二波分复用（WDM）耦合器，第一和第二隔离器的第一光学器件，包括第三和第四WDM耦合器的第二光学器件，第三和第四 第四个隔离器和一对用于泵浦光纤放大器的光源。 在光放大器中，第一WDM耦合器通过第一隔离器和第二WDM耦合器选择性地将来自第一发送器的第一信号光发送到光纤放大器，第二WDM耦合器选择性地将来自第二发射机的第二信号光传输到 第二个接收器通过第二个隔离器和第一个WDM耦合器。 第三WDM耦合器通过第三隔离器和第四WDM耦合器选择性地将来自光纤放大器的第一信号光发射到第一接收器，第四WDM耦合器通过第四WDM耦合器选择性地将第二信号光从第二发射器发射到光纤放大器 隔离器和第三个WDM耦合器。