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1. 发明授权

US06816681B2 Analogous channel method for performance monitoring and equalization in optical networks 有权
标题翻译：用于光网络性能监测和均衡的类信道方法
公开(公告)号：US06816681B2
公开(公告)日：2004-11-09
申请号：US09161433
申请日：1998-09-24
申请人： Jingui Li , Suet Yuen , Michael J. Moyer
发明人： Jingui Li , Suet Yuen , Michael J. Moyer
IPC分类号： H04B1008
CPC分类号： H04J14/0221 , H04B10/07953
摘要： Performance monitoring and equalization of DWDM optical links equipped with optical add/drop multiplexers (OADMs) at one or more sites is effected by selecting a direction of transmission and the end sites from the point of view of equalization. Performance monitoring and equalization of DWDM optical links equipped with optical add/drop multiplexers (OADM) is presented in this application. This approach in involves conceptually converting a multiple ends system to a “two-end” system with analogous channels (AC) to simplify the network management and equalize the DWDM channel performance. All analogous channels are treated as originating at a source analogous end and terminating at a destination analogous end for the purpose of equalization. The input power for all ACs, is adjusted at the source AE to obtain equal channel performance at the destination AE.
摘要翻译：通过从均衡的角度选择传输方向和端点，实现在一个或多个站点配备光学分插复用器（OADM）的DWDM光链路的性能监控和均衡。性能监测和均衡DWDM光纤本应用中介绍了配备光分插复用器（OADM）的链路。这种方法在概念上将多端系统转换为具有类似信道（AC）的“两端”系统，以简化网络管理并均衡DWDM信道性能。为了均衡的目的，所有类似的信道被视为源于源类似端并终止于目的地类似端。所有AC的输入功率在源AE处被调整，以在目的地AE获得相等的信道性能。

2. 发明授权

US06804464B2 Flexible and low cost wavelength management for optical networking 失效
标题翻译：灵活且低成本的光网络波长管理
公开(公告)号：US06804464B2
公开(公告)日：2004-10-12
申请号：US09781254
申请日：2001-02-13
申请人： Dan Dan Yang
发明人： Dan Dan Yang
IPC分类号： H04B1008
CPC分类号： H04B10/07955 , H04B10/077 , H04B2210/258 , H04J14/0221
摘要： A method and devices for individually controlling the signal strength of single or multiple optical channels. A controller module monitors the signal strength of channels and amplifies those that need amplifying while attenuating those that are too strong using the same Erbium doped fiber amplifier. A controllable compensation module receives at least one channel and, when required, can either amplify or attenuate the signal strength of the channel(s). The module can be constructed out of a single fiber with an associated pump laser. If the laser provides insufficient pumping power, the fiber acts as an attenuator. If the laser provides a higher level of pump power, the fiber acts as an amplifier.
摘要翻译：用于单独控制单个或多个光学信道的信号强度的方法和装置。控制器模块监视通道的信号强度，并放大需要放大的信号，同时使用相同的掺铒光纤放大器衰减那些太强的信号。可控补偿模块接收至少一个通道，并且在需要时可以放大或衰减通道的信号强度。该模块可以由具有相关泵激光器的单根光纤构成。如果激光器提供的泵浦功率不足，则光纤作为衰减器。如果激光器提供更高水平的泵浦功率，则光纤作为放大器。

3. 发明授权

US06782199B1 Optical communications systems with optical subsystem communications links 失效
标题翻译：具有光子系统通信链路的光通信系统
公开(公告)号：US06782199B1
公开(公告)日：2004-08-24
申请号：US09696187
申请日：2000-10-26
申请人： Jun Ye , Yen-Wen Lu , Yu Cao
发明人： Jun Ye , Yen-Wen Lu , Yu Cao
IPC分类号： H04B1008
CPC分类号： H04B10/0793
摘要： Optical communications networks are provided that allow network maintainers to monitor or control subsystems using communications links other than optical telemetry links. The communications links may be wireless links or may be based on any other suitable communications links such as links using Ethernet cables or telephone lines. Network subsystems may be provided that include communications circuitry for communicating over the communications links. A network maintainer may use network control and management software implemented on computer equipment at a different location than the subsystems to communicate with the subsystems over the communications links. Because the communications links may function independently from the optical telemetry channels in the network, new subsystems may be added to the network without disturbing the existing network management software or telemetry arrangement.
摘要翻译：提供了光通信网络，其允许网络维护者使用除光学遥测链路之外的通信链路监视或控制子系统。通信链路可以是无线链路，或者可以基于任何其它合适的通信链路，例如使用以太网电缆或电话线的链路。可以提供包括用于通过通信链路进行通信的通信电路的网络子系统。网络维护者可以使用在与子系统不同的位置上在计算机设备上实现的网络控制和管理软件，以通过通信链路与子系统进行通信。由于通信链路可以独立于网络中的光学遥测信道工作，所以可以将新的子系统添加到网络中，而不会干扰现有的网络管理软件或遥测装置。

4. 发明授权

US06766117B2 Network system 有权
标题翻译：网络系统
公开(公告)号：US06766117B2
公开(公告)日：2004-07-20
申请号：US09833020
申请日：2001-04-11
申请人： Thomas Notheis
发明人： Thomas Notheis
IPC分类号： H04B1008
CPC分类号： B23K26/0884 , B23K26/0604 , B23K26/0673 , B23K26/702 , G02B6/4296
摘要： The invention provides a network system for laser processing, comprising at least two laser devices and a workstation with a laser processing head which can be operated safely. A first light guide leads from the first laser device to a first connection element, associated with which is a first communication connection element connected to the laser controller of the first laser device. A second light guide leads from the second laser device to a second connection element, associated with which is a second communication connection element connected to the laser controller of the second laser device. The laser processing head can be connected to one of the connection elements by a mating connection part. A safety circuit of the workstation ensures that each laser controller releases the shutter switch only if the safety circuit is connected to the communication connection element connected to the respective laser controller.
摘要翻译：本发明提供了一种用于激光加工的网络系统，其包括至少两个激光装置和具有能够安全操作的激光加工头的工作站。第一光导从第一激光装置引导到第一连接元件，第一连接元件是连接到第一激光装置的激光控制器的第一通信连接元件。第二光导从第二激光装置引导到第二连接元件，第二连接元件是连接到第二激光装置的激光控制器的第二通信连接元件。激光加工头可以通过配合连接部连接到一个连接元件。工作站的安全电路确保每个激光控制器仅在安全电路连接到连接到相应激光控制器的通信连接元件时才释放快门开关。

5. 发明授权

US06748169B1 Method for measuring the signal quality of an optical data signal 有权
标题翻译：用于测量光数据信号的信号质量的方法
公开(公告)号：US06748169B1
公开(公告)日：2004-06-08
申请号：US09603882
申请日：2000-06-26
申请人： Harald Geiger , Christoph Glingener , Erich Gottwald
发明人： Harald Geiger , Christoph Glingener , Erich Gottwald
IPC分类号： H04B1008
CPC分类号： H04B10/077 , H04B10/07955
摘要： A method for measuring the signal quality of an optical data signal is provided. To measure the signal quality, and in particular the signal-to-noise ratio of an optical data signal which has data-free time intervals, the signal strength of the transmitted optical data signal is measured during a data transmission. The signal strength of the noise signal is determined during the data-free time intervals. The signal-to-noise ratio is determined and used as a criterion for the signal quality of the optical data signal.
摘要翻译：提供了一种用于测量光数据信号的信号质量的方法。为了测量信号质量，特别是具有无数据时间间隔的光数据信号的信噪比，在数据传输期间测量发送的光数据信号的信号强度。噪声信号的信号强度在无数据时间间隔期间确定。确定信噪比并将其用作光数据信号的信号质量的标准。

6. 发明授权

US06738578B1 Optical communication method and apparatus 失效
标题翻译：光通信方法及装置
公开(公告)号：US06738578B1
公开(公告)日：2004-05-18
申请号：US09320347
申请日：1999-05-26
申请人： Norihito Mihota
发明人： Norihito Mihota
IPC分类号： H04B1008
CPC分类号： H04B10/114 , H04B10/07 , H04B10/502
摘要： An optical communication system wherein a light emission circuit operates with reduced power consumption. The optical communication system is used in a communication network wherein communication is had between a control node and plural controlled nodes using light rays amplitude-modulated with carrier modulation signals over 6 MHz. The control node transmits a transmission permission signal to each controlled node, which starts or interrupts light emission with desired transient characteristics by having reference to the transmission permission signal. For example, the amplitude of the infrared light rays is increased or decreased over e.g., a period as indicated at I1.
摘要翻译：一种光通信系统，其中发光电路以降低的功耗工作。光通信系统用于通信网络，其中通过使用6MHz以上的载波调制信号进行调幅的光线，在控制节点和多个受控节点之间进行通信。控制节点通过参照发送允许信号，向每个受控节点发送发送许可信号，该信号启动或中断具有期望的瞬态特性的发光。例如，如I1所示，红外光线的幅度例如增加或减小。

7. 发明授权

US06714739B1 Optical transmission systems and optical receivers and receiving methods for use therein 有权
标题翻译：光传输系统和光接收机及其中使用的接收方法
公开(公告)号：US06714739B1
公开(公告)日：2004-03-30
申请号：US09588527
申请日：2000-06-06
申请人： Pramode Kandpal , Alistair J. Price , David F. Smith
发明人： Pramode Kandpal , Alistair J. Price , David F. Smith
IPC分类号： H04B1008
CPC分类号： H04B10/675
摘要： An optical transmission system including at least one optical transmitter configured to transmit at least one signal wavelength and a tuning wavelength, an optical receiver including an optical filter having a filter bandwidth including the at least one signal wavelength and a percentage of the tuning wavelength and an optical to electrical signal converter configured to receive the at least one signal wavelength from said filter, a first tuning optical to electrical converter configured to receive a first portion of the tuning wavelength stopped by said filter, a second tuning optical to electrical converter configured to receive a second portion of the tuning wavelength passed by said filter, and a filter controller configured to tune the filter bandwidth based on the relative proportion of first and second portions of the tuning wavelength provided to the first and second tuning optical to electrical converters.
摘要翻译：一种光传输系统，包括至少一个光发射机，被配置为传输至少一个信号波长和调谐波长;光接收器，包括具有包括所述至少一个信号波长和所述调谐波长百分比的滤波器带宽的滤光器，以及被配置为从所述滤波器接收所述至少一个信号波长的光电对电信号转换器，被配置为接收由所述滤波器停止的所述调谐波长的第一部分的第一调谐光电转换器，被配置为接收的第二调谐光电转换器由所述滤波器通过的调谐波长的第二部分，以及滤波器控制器，被配置为基于提供给第一和第二调谐光学到电转换器的调谐波长的第一和第二部分的相对比例来调整滤波器带宽。

8. 发明授权

US06704508B1 Optical crossconnect, optical network device, and connection status supervisory method 有权
标题翻译：光交叉连接，光网络设备和连接状态监控方式
公开(公告)号：US06704508B1
公开(公告)日：2004-03-09
申请号：US09595345
申请日：2000-06-15
申请人： Koji Asahi
发明人： Koji Asahi
IPC分类号： H04B1008
CPC分类号： H04Q11/0005 , H04J14/0227 , H04J14/0241 , H04J14/0284 , H04J14/0295 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/003 , H04Q2011/0035 , H04Q2011/0039 , H04Q2011/0043 , H04Q2011/0056 , H04Q2011/0069 , H04Q2011/0079
摘要： An optical crossconnect selectively connects at least one input terminal with at least one output terminal. The optical crossconnect includes: an optical switch connecting at least one input port connected to the at least one input terminal with at least one output port connected to the at least one output terminal; at least one supervisory light generating circuit for sending a supervisory light from each of the at least one output port to the optical switch; and at least one supervisory light receiving circuit for receiving the supervisory light output from the at least one input port.
摘要翻译：光学交叉连接器将至少一个输入端子与至少一个输出端子选择性地连接。光学交叉连接包括：光学开关，其连接至少一个连接到所述至少一个输入端子的输入端口与连接到所述至少一个输出端子的至少一个输出端口; 至少一个监控光产生电路，用于从所述至少一个输出端口中的每一个向所述光开关发送监控光; 以及至少一个监控光接收电路，用于接收从所述至少一个输入端口输出的监控光。

9. 发明授权

US06594043B1 System and method for providing an eye safe laser communication system 有权
公开(公告)号：US06594043B1
公开(公告)日：2003-07-15
申请号：US09473076
申请日：1999-12-28
申请人： Scott H. Bloom , James E. Dunn , Anthony Acampora
发明人： Scott H. Bloom , James E. Dunn , Anthony Acampora
IPC分类号： H04B1008
CPC分类号： H04B10/1149 , H04B10/40
摘要： A system and method for producing an eye safe laser communication system. The system and method detects an interfering object in the optical path and cuts off or reduces the power in the communication beam to safe levels. In one embodiment, a second laser diode transmitter and receiver is installed in each network node. The laser transmitter is pointed at a corresponding network node and the pulses travel in parallel with the communication beam. The pulses are reflected back to the transmitting node where they are detected. Their flight time is measured. When an interfering object is present, in one scenario, the pulses bounce of the interfering object and return to the receiver in the transmitting node, resulting in a reduced flight time. This reduced flight time is interpreted as an interfering object and the beam is shut down or reduced to a safe level. In a second scenario, the interfering object absorbs the detection beam. In another embodiment, a CCD camera is used to capture a reflection from an object in the path of the communication link. In this embodiment the CCD has an overlapping field of view with the communication transceiver's transmit laser. The laser's transmission beam forms a baseline pattern on the CCD. Any pixel to pixel variation from the baseline pattern indicates an interference, thus triggering the system to shut down or reduce the power of the communication link. Another embodiment uses retroreflection of the human eye to detect interference by the human eye and an optical magnification device. In this embodiment, a CCD is used to detect signals bent back by retroreflection of the human eye. When such a signal is detected, the link is immediately shut down. Another embodiment utilizes the communication link itself and a detector in the receiver to detect instantaneous power drops caused by an interfering object. When an interfering object is detected, the system shuts down or reduces the power of the communication beam to an eye safe level.

10. 发明授权

US06587240B1 Optical switching node and method for operating same 失效
标题翻译：光交换节点及其操作方法
公开(公告)号：US06587240B1
公开(公告)日：2003-07-01
申请号：US09470087
申请日：1999-12-22
申请人： Jonathan P. R. Lacey , David G. Cunningham , Steve Methley , Mark Nowell
发明人： Jonathan P. R. Lacey , David G. Cunningham , Steve Methley , Mark Nowell
IPC分类号： H04B1008
CPC分类号： H04Q11/0005 , H04J14/0206 , H04J14/021 , H04J14/0212 , H04J14/0213 , H04J14/0221 , H04Q2011/0011 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0039 , H04Q2011/0041 , H04Q2011/0049 , H04Q2011/0079
摘要： An optical switching node and method for operating same is disclosed. If a signal received over an optical fiber is destined for the switching node at which the signal is received, the signal is processed conventionally. If there is a signal on the fiber that is destined for a different optical switching node, then a node controller will determine whether that signal requires equalization and/or regeneration. A network manager instructs the node controller whether the signal requires wavelength conversion. In accordance with the invention, if the optical signal on the fiber is destined for a different optical switching node and requires none of equalization, regeneration and wavelength conversion, the optical signal remains in the optical domain and is switched directly to an appropriate output fiber. If the node controller and network manager determine that the optical signal that is destined for a different optical switching node requires any combination of equalization, regeneration, and/or wavelength conversion, then the signal is further processed in the optical switching node to provide those functions.
摘要翻译：公开了一种光交换节点及其操作方法。如果通过光纤接收的信号指向接收信号的交换节点，那么该信号被传统地处理。如果在光纤上存在目的地为不同的光交换节点的信号，则节点控制器将确定该信号是否需要均衡和/或再生。网络管理员指示节点控制器是否需要波长转换。根据本发明，如果光纤上的光信号用于不同的光交换节点，并且不需要均衡，再生和波长转换，则光信号保持在光域中，并直接切换到适当的输出光纤。如果节点控制器和网络管理器确定要用于不同光交换节点的光信号需要均衡，再生和/或波长转换的任何组合，则在光交换节点中进一步处理信号以提供这些功能。

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