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1. 发明授权

US06836587B2 Optical transmission device and optical transmission system employing the same 失效
标题翻译：光传输装置及采用该传输装置的光传输系统
公开(公告)号：US06836587B2
公开(公告)日：2004-12-28
申请号：US10654810
申请日：2003-09-05
申请人： Junya Kosaka , Takayuki Suzuki , Hiroyuki Nakano
发明人： Junya Kosaka , Takayuki Suzuki , Hiroyuki Nakano
IPC分类号： G02B628
CPC分类号： H04B10/2935 , H04B2210/256 , Y10S372/703
摘要： An optical transmission device which reduces optical noise in an optical transmission system. The optical transmission device includes a core light amplifying unit, and a first buffer light amplifying unit for amplifying a first signal light from a first transmission path and an amplified second signal light from the core light amplifying unit. The first buffer light amplifying unit supplies the core light amplifying unit with the first signal light, and supplies the first transmission path with the amplified second signal light. Also provided is a second buffer light amplifying unit for amplifying a second signal light from a second transmission path and an amplified first signal light from the core light amplifying unit. The second buffer light amplifying unit supplies the core light amplifying unit with the second signal light, and supplies the second transmission path with the amplified first signal light.
摘要翻译：一种降低光传输系统中的光噪声的光传输装置。光传输装置包括核心光放大单元和用于放大来自第一传输路径的第一信号光和来自核心光放大单元的放大的第二信号光的第一缓冲光放大单元。第一缓冲光放大单元向核心光放大单元提供第一信号光，并且向第一传输路径提供放大的第二信号光。还提供了用于放大来自第二传输路径的第二信号光和来自核心光放大单元的放大的第一信号光的第二缓冲光放大单元。第二缓冲光放大单元向核心光放大单元提供第二信号光，并且向第二传输路径提供放大的第一信号光。

2. 发明授权

US06832019B2 Duplex reflective re-configurable optical add/drop multiplexers 有权
标题翻译：双工反光可重配置的光分插复用器
公开(公告)号：US06832019B2
公开(公告)日：2004-12-14
申请号：US10440222
申请日：2003-05-19
申请人： Colin Geoffrey Kelly
发明人： Colin Geoffrey Kelly
IPC分类号： G02B628
CPC分类号： G02B6/2932 , G02B6/29383
摘要： Devices and methods are provided for a re-configurable optical add/drop multiplexer (ROADM) having a static circulator, a selectable grating and a reversible circulator. The use of a reversible circulator in a known optical drop multiplexer configuration allows the selectable grating to be used for selecting both the add-wavelength and the drop-wavelength while maintaining an East/West architectural split to allow for SONET compliant maintenance. This invention provides a cost-effective enhancement to a duplex reflective wavelength selective ROADM.
摘要翻译：为具有静态循环器，可选光栅和可逆循环器的可重新配置的光分插复用器（ROADM）提供了器件和方法。在已知的光分路复用器配置中使用可逆循环器允许可选光栅用于选择添加波长和波长波长，同时保持东/西结构分割以允许SONET兼容维护。本发明提供了对双反射波长选择性ROADM的成本有效的增强。

3. 发明授权

US06829408B2 Optical amplifier, optical transmission equipment, optical transmission system, and method thereof 失效
公开(公告)号：US06829408B2
公开(公告)日：2004-12-07
申请号：US10727665
申请日：2003-12-05
申请人： Junya Kosaka , Hiroyuki Nakano , Takayuki Suzuki
发明人： Junya Kosaka , Hiroyuki Nakano , Takayuki Suzuki
IPC分类号： G02B628
CPC分类号： H04B10/291 , H01S3/06758 , H01S3/094061 , H01S2301/06 , H04B10/0775 , H04B10/0777 , H04B10/25133 , H04B10/2525 , H04B10/2912 , H04B10/2931 , H04B2210/074 , H04B2210/078 , H04B2210/256
摘要： An optical transmission equipment for use in an optical transmission system, having an optical amplifier (10A), comprising: a first optical doped fiber (1A); a second optical doped fiber (1B); a third optical doped fiber (1C); an optical isolator (6) of bringing loss in the optical signal, being provided between the first optical doped fiber and the second optical doped fiber; a dispersion compensator (7) being provided between the second optical doped fiber and the third optical doped fiber; and a pumping light source (2) being optically connected to so that the optical doped fibers (1A, 1B, 1C) are excited in common.

4. 发明授权

US06816639B1 Optically powered and controlled optical switch 有权
标题翻译：光功率控制光开关
公开(公告)号：US06816639B1
公开(公告)日：2004-11-09
申请号：US10100332
申请日：2002-03-18
申请人： Tomasz Leonczuk , Samuel Chang , Krzysztof Pradzynski , Charles Barker
发明人： Tomasz Leonczuk , Samuel Chang , Krzysztof Pradzynski , Charles Barker
IPC分类号： G02B628
CPC分类号： H04B10/806 , H04Q11/0005 , H04Q2011/0024 , H04Q2011/0039 , H04Q2011/0049
摘要： Systems and methods are described for optically powered and controlled optical switches. A method includes powering an optical switch with a communications data signal; and controlling the optical switch with the communications data signal. An apparatus includes a primary optical input port; a secondary optical input port; an optical tap coupled to the primary optical input port; an optical switch coupled to the optical tap and to the secondary optical input port; an optical-to-electrical signal converter coupled to the optical tap; a control circuit coupled to the optical-to-electrical signal converter and to the optical switch; an electrical energy storage circuit coupled to the control circuit; an optical-to-electrical power converter coupled to the electrical energy storage circuit and to the optical switch; and an optical output port coupled to the optical switch, wherein the optical-to-electrical signal converter can transform, to electrical energy, optical energy from a communications data signal that arrives at the optical tap.

5. 发明授权

US06810169B2 Wavelength switch with independent channel equalization 有权
标题翻译：具有独立通道均衡的波长开关
公开(公告)号：US06810169B2
公开(公告)日：2004-10-26
申请号：US10164698
申请日：2002-06-10
申请人： Oleg Bouevitch
发明人： Oleg Bouevitch
IPC分类号： G02B628
CPC分类号： G02B6/29383 , G02B6/2766 , G02B6/2773 , G02B6/2793 , G02B6/2931 , G02B6/29313 , G02B6/29395 , G02B6/29397
摘要： A modular optical platform for selective wavelength switching that can be adapted to perform various other functions, such as dynamic gain equalization (DGE) and add/drop multiplexing (ADM) provides the versatility and modularity that will be essential to the future of the fiber optics industry. The basic platform includes a first lens for directing an optical signal, a diffraction grating for dispersing an optical signal into its component wavelength channels, a second lens for directing the component wavelength channels, and a modifying device for conducting one or more of a variety of functions including switching, DGE and ADM. The first and second lens are preferably replaced by a single concave reflective mirror having optical power. The modifying means according to the present invention includes a first array of liquid crystal elements positioned in a first set of paths, a second array of liquid crystal elements in a second set of paths, and a polarization beam director for directing the component wavelength channels between the first and second set of paths based on the polarization of the wavelength channels.
摘要翻译：用于选择性波长切换的模块化光学平台，可适用于执行各种其他功能，如动态增益均衡（DGE）和分插复用（ADM），提供了对光纤未来至关重要的通用性和模块性行业。基本平台包括用于引导光信号的第一透镜，用于将光信号分散到其分量波长通道中的衍射光栅，用于引导分量波长通道的第二透镜，以及用于传导各种光信号的一个或多个的修改装置功能包括切换，DGE和ADM。第一和第二透镜优选地由具有光焦度的单个凹面反射镜代替。根据本发明的修改装置包括位于第一组路径中的第一液晶元件阵列，第二组路径中的液晶元件的第二阵列和用于将分量波长通道引导到第二组路径中的偏振束导向器基于波长通道的极化的第一和第二组路径。

6. 发明授权

US06804430B2 Optical multiplexer/demultiplexer 失效
标题翻译：光复用器/解复用器
公开(公告)号：US06804430B2
公开(公告)日：2004-10-12
申请号：US10156868
申请日：2002-05-30
申请人： Isao Ooyama , Hiroyuki Koshi , Takuya Komatsu , Kazuhisa Kashihara
发明人： Isao Ooyama , Hiroyuki Koshi , Takuya Komatsu , Kazuhisa Kashihara
IPC分类号： G02B628
CPC分类号： G02B6/12007 , G02B6/29352 , G02B6/2938 , G02B2006/12038 , G02B2006/12159
摘要： An optical multiplexer/demultiplexer has a plurality of Mach-Zehnder optical interferometer multiplexing/demultiplexing circuits connected in plural stages, at least one of the plurality of Mach-Zehnder optical interferometer multiplexing/demultiplexing circuits including a first optical waveguide, a second optical waveguide disposed along the first optical waveguide, a first directional coupling portion that connects a first part of the first optical waveguide to a first part of the second optical waveguide, and a second directional coupling portion that connects a second part of the first optical waveguide to a second part of the second optical waveguide. A relationship among a coupling portion length LR of at least one of the first and second directional coupling portions, a complete coupling length LC of at least one of the first and second directional coupling portions and a lead portion coupling length Le of at least one of the first and second directional coupling portions, is substantially: π 2 × L e + L R L C = π 4 .
摘要翻译：光复用器/解复用器具有多个多级连接的多个马赫 - 曾德尔光干涉仪复用/解复用电路，多个Mach-Zehnder光干涉仪复用/解复用电路中的至少一个包括第一光波导，布置的第二光波导沿着第一光波导，将第一光波导的第一部分连接到第二光波导的第一部分的第一定向耦合部分和将第一光波导的第二部分连接到第二光波导的第二定向耦合部分第二光波导的一部分。第一和第二定向耦合部分中的至少一个的耦合部分长度LR之间的关系，第一和第二定向耦合部分中的至少一个的完整耦合长度LC和至少一个第一和第二定向耦合部分的引线部分耦合长度Le 第一和第二定向联接部分基本上是：

7. 发明授权

US06778731B2 Control method of received power in optical communication, optical transmission apparatus, optical receiving apparatus, and optical communication system 失效
标题翻译：光通信接收功率的控制方法，光传输装置，光接收装置和光通信系统
公开(公告)号：US06778731B2
公开(公告)日：2004-08-17
申请号：US10290312
申请日：2002-11-08
申请人： Masato Tanaka
发明人： Masato Tanaka
IPC分类号： G02B628
CPC分类号： H04B10/6931 , H04B10/672
摘要： Received power desired by a receiving end is controlled from a transmitting end without mounting an AGC circuit on an optical receiving apparatus. In an optical communication system that transmits an optical signal output from an optical transmission apparatus 11 to an optical receiving apparatus 13, the optical transmission apparatus comprises a signal processing unit 11C for receiving a level signal fed back from the optical receiving apparatus, and a level adjustment unit 11B for adjusting output power of an optical signal of the optical transmission apparatus on the basis of the level signal so that the received power of the optical signal received by the optical receiving apparatus may be constant. The optical receiving apparatus comprises a level signal generating unit 13A for generating a level signal reflecting a value of the received power and giving feedback to the optical transmission apparatus.
摘要翻译：从发送端控制接收端的接收功率，而不在AGC接收装置上安装AGC电路。在从光发送装置11输出的光信号向光接收装置13发送的光通信系统中，发送装置包括用于接收从光接收装置反馈的电平信号的信号处理单元11C和基于电平信号调整光发送装置的光信号的输出功率的电平调整单元11B，由光接收装置接收的光信号的接收功率可以是恒定的。光接收装置包括：电平信号发生单元13A，用于产生反映接收功率的值的电平信号，并向光传输装置提供反馈。

8. 发明授权

US06775432B2 Method and apparatus for optical wavelength demultiplexing, multiplexing and routing 失效
标题翻译：用于光波长解复用，复用和路由的方法和装置
公开(公告)号：US06775432B2
公开(公告)日：2004-08-10
申请号：US09998842
申请日：2001-10-19
申请人： Santanu Basu
发明人： Santanu Basu
IPC分类号： G02B628
CPC分类号： G02B6/29307 , G02B6/2706 , G02B6/2931 , G02B6/29367 , G02B6/2938 , G02B6/29398 , G02B6/32 , H04J14/02
摘要： This invention relates to demultiplexing, routing and multiplexing of a number of different optical wavelength channels. The demultiplexer provides a basis for robust designs of multi-channel optical communication receiver, spectrum analyzer and router. The demultiplexer is operationally bi-directional providing a means for multiplexing.
摘要翻译：本发明涉及多个不同光波长信道的解复用，路由和复用。解复用器为多通道光通信接收机，频谱分析仪和路由器的鲁棒设计提供了基础。解复用器在操作上是双向的，提供多路复用的手段。

9. 发明授权

US06771853B2 Optical fiber communication system using optical phase conjugation as well as apparatus applicable to the system and method of producing the same 失效
公开(公告)号：US06771853B2
公开(公告)日：2004-08-03
申请号：US10229011
申请日：2002-08-28
申请人： Shigeki Watanabe
发明人： Shigeki Watanabe
IPC分类号： G02B628
CPC分类号： H04B10/2531 , H04B10/2543 , H04B10/2563
摘要： An optical fiber communication system according to the present invention has, for example, first and second phase conjugators. The first phase conjugator converts a signal beam from a first optical fiber into a first phase conjugate beam. The first phase conjugate beam is supplied to the second phase conjugator by a second optical fiber. The second phase conjugator converts the first phase conjugate beam into a second phase conjugate beam. The second phase conjugate beam is transmitted by a third optical fiber. The second optical fiber is composed of a first portion located between the first phase conjugator and a system midpoint and a second portion located between the system midpoint and the second phase conjugator. The total dispersion of the first optical fiber substantially coincides with the total dispersion of the first portion, and the total dispersion of the second portion substantially coincides with the total dispersion of the third optical fiber. By the construction, waveform distortion by chromatic dispersion or nonlinearity is compensated for.

10. 发明授权

US06768831B2 Optical add-drop multiplexing apparatus 有权
标题翻译：光分插复用装置
公开(公告)号：US06768831B2
公开(公告)日：2004-07-27
申请号：US10091887
申请日：2002-03-06
申请人： Takuji Maeda
发明人： Takuji Maeda
IPC分类号： G02B628
CPC分类号： H04Q11/0005 , H04J14/0204 , H04J14/0212 , H04J14/0217 , H04J14/0221 , H04J14/0283 , H04J14/0295 , H04Q2011/0058
摘要： An input signal line is split and guided to a 2×1 switch and a drop unit by an optical coupler. The 2×1 switch guides the signal from the optical coupler or a signal from a second 2×2 switch to a first 2×2 switch. The first 2×2 switch guides the signal from the 2×1 switch or a signal from an add unit to an inter-station line or the second 2×2 switch. The second 2×2 switch guides the signal to a 2×1 switch for an inter-station line to which the signal is output. The add unit guides a signal to a first 2×2 switch for an inter-station line to which the signal is added. The drop unit guides a signal from a desired inter-station line to an intra-station line.
摘要翻译：输入信号线被分离并通过光耦合器被引导到2×1开关和下降单元。 2x1开关将来自光耦合器的信号或来自第二个2x2开关的信号引导到第一个2x2开关。第一个2x2开关将来自2x1开关的信号或来自添加单元的信号引导到站间线路或第二个2x2开关。第二个2x2开关将信号引导到2x1开关，用于输出信号的站间线路。添加单元将信号引导到第一个2x2开关，用于添加信号的站间线路。下降单元将来自期望的站间线路的信号引导到站内线路。

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