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公开(公告)号：US20070280700A1
公开(公告)日：2007-12-06
申请号：US11754341
申请日：2007-05-28
IPC分类号： H04B10/04
CPC分类号： H04J14/0298 , H04B10/07 , H04B2210/075 , H04J14/0227 , H04J14/0241 , H04J14/028
摘要： Identification of optical channels in wavelength division multiplex (WDM) optical networks may be confounded by unwanted noise tones interfering with pilot/dither tones used for identifying optical channels. The invention describes a method of selecting pilot/dither tones that are selectively restricted to avoid allocating dither/pilot tone frequencies that appear as noise tones along the path of an optical channel in the optical network.
摘要翻译： 在波分多路复用（WDM）光网络中的光信道的识别可能会受到干扰用于识别光信道的导频/抖动音调的不利噪声音调的混淆。 本发明描述了一种选择限制的导频/抖动音调的方法，以避免分配出沿着光网络中的光信道路径出现的噪声音调的抖动/导频音频率。
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2.发明授权Method for network commissioning and upgrading using amplified spontaneous emission (ASE) sources 有权使用放大自发辐射（ASE）来源进行网络调试和升级的方法公开(公告)号：US07652816B2
公开(公告)日：2010-01-26
申请号：US11615953
申请日：2006-12-23
申请人： Jason Christopher De Rocher , Hamish Iain MacDonald , Walter Joseph Carpini , Eddie Kai Ho Ng , Derrick Remedios , James Benson Bacque , Ping Wai Wan
发明人： Jason Christopher De Rocher , Hamish Iain MacDonald , Walter Joseph Carpini , Eddie Kai Ho Ng , Derrick Remedios , James Benson Bacque , Ping Wai Wan
CPC分类号： H04B10/275
摘要： This invention provides a method for commissioning and upgrading an optical ring network using its internal amplifiers as Automatic Spontaneous Emission sources of light that are used in making measurements. A modular segmented approach is adopted and the network is commissioned segment by segment. A flexible method is used for upgrading a commissioned network by adding or deleting a node or changing the internal configuration of a node. The method uses techniques for the correction of the Optical Signal to Noise Ratio induced error as well as the Spectral Filtering Error during the loss computation required for adjusting the gains of the amplifiers at each network node to an appropriate value. Since the method does not require an external laser source that needs to be moved manually from node to node it greatly reduces the commissioning time. Since it uses only the components of the network itself and does not deploy any additional device it also leads to a significant saving in cost.
摘要翻译： 本发明提供了一种使用其内部放大器调试和升级光环网络的方法，所述放大器是用于进行测量的自动自发发射光源。 采用模块化分段方式，逐段调试网络。 灵活的方法用于通过添加或删除节点或更改节点的内部配置来升级委托网络。 该方法使用用于校正光信噪比诱导误差的技术以及在将每个网络节点处的放大器的增益调整到适当值所需的损耗计算期间的光谱滤波误差。 由于该方法不需要需要从节点手动移动的外部激光源，因此大大减少了调试时间。 由于它仅使用网络组件本身，并且不部署任何其他设备，因此也可大大节省成本。
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3.发明授权Methods and apparatus for detecting a faulty component location along an optical path in an optical network 有权用于检测沿着光网络中的光路的故障部件位置的方法和装置公开(公告)号：US07139069B2
公开(公告)日：2006-11-21
申请号：US11065098
申请日：2005-02-25
IPC分类号： G01N21/00
CPC分类号： H04B10/077 , H04B10/07955
摘要： A multi-stage method and apparatus for determining a faulty component location along an optical path through an optical fiber in an optical network are disclosed. A total power of the optical fiber, and a total wavelength power as a sum of powers of the individual wavelengths at a plurality of local detection points are measured and compared at the local detection points, followed by determining whether or not a faulty detection point exists along the optical path. If a fault is identified, the method provides a multi-stage fault detection procedure, including measuring a total wavelength power loss between a local detection point and an adjacent detection point, between the local detection point and multiple non-adjacent detection points, and a correlation of the measured total wavelength power losses between the various detection points. A corresponding apparatus for determining the faulty component location in the optical network is also provided.
摘要翻译： 公开了一种用于通过光网络中的光纤确定沿着光路的故障部件位置的多级方法和装置。 在本地检测点测量光纤的总功率和总波长功率作为多个本地检测点处的各个波长的功率之和，然后确定是否存在故障检测点 沿光路。 如果识别故障，则该方法提供多级故障检测程序，包括测量本地检测点与相邻检测点之间，本地检测点与多个非相邻检测点之间的总波长功率损耗，以及 在各种检测点之间测量的总波长功率损耗的相关性。 还提供了用于确定光网络中的故障组件位置的相应设备。
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公开(公告)号：US07783193B2
公开(公告)日：2010-08-24
申请号：US11754341
申请日：2007-05-28
IPC分类号： H04B10/08
CPC分类号： H04J14/0298 , H04B10/07 , H04B2210/075 , H04J14/0227 , H04J14/0241 , H04J14/028
摘要： Identification of optical channels in wavelength division multiplex (WDM) optical networks may be confounded by unwanted noise tones interfering with pilot/dither tones used for identifying optical channels. The invention describes a method of selecting pilot/dither tones that are selectively restricted to avoid allocating dither/pilot tone frequencies that appear as noise tones along the path of an optical channel in the optical network.
摘要翻译： 在波分多路复用（WDM）光网络中的光信道的识别可能会受到干扰用于识别光信道的导频/抖动音调的不利噪声音调的混淆。 本发明描述了一种选择限制的导频/抖动音调的方法，以避免分配出沿着光网络中的光信道路径出现的噪声音调的抖动/导频音频率。
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5.发明授权公开(公告)号：US08014668B2
公开(公告)日：2011-09-06
申请号：US12017041
申请日：2008-01-20
申请人： Ping Wai Wan , Derrick Remedios , Patrick Chilufya Chimfwembe , Colin Geoffrey Kelly , James Benson Bacque
发明人： Ping Wai Wan , Derrick Remedios , Patrick Chilufya Chimfwembe , Colin Geoffrey Kelly , James Benson Bacque
CPC分类号： H04B10/0775 , H04B2210/075 , H04B2210/078
摘要： A method and apparatus for distributed measurement of chromatic dispersion in an optical network is disclosed. The network comprises optical switching nodes interconnected by optical links. An optical link may comprise multiple spans, each span ending in a transport module which comprises signal-processing components. At least one optical switching node has a probing signal generator transmitting an optical probing signal along a selected path in the network. Probing-signal detectors placed at selected transport modules determine chromatic-dispersion values and send results to a processing unit which determines appropriate placement of compensators or appropriate adjustments of compensators placed along the path. A preferred probing signal has the form of wavelength modulated optical carrier which is further intensity modulated by a periodic, preferably sinusoidal, probing tone. Variation in the phase-shift of the probing tone corresponding to variation of the wavelength of the optical probing signal determines chromatic-dispersion characteristics for different spans of the path.
摘要翻译： 公开了一种用于分布式测量光网络色散的方法和装置。 网络包括通过光链路互连的光交换节点。 光链路可以包括多个跨度，每个跨度结束于传输模块，其包括信号处理组件。 至少一个光交换节点具有探测信号发生器，沿着网络中的选定路径发射光探测信号。 放置在所选传输模块处的探测信号检测器确定色散值并将结果发送到处理单元，该处理单元确定补偿器的适当位置或沿路径放置的补偿器的适当调整。 优选的探测信号具有波长调制光载波的形式，其进一步通过周期性的，优选正弦的探测色调进行强度调制。 与光探测信号的波长变化相对应的探测音的相移的变化确定了路径不同跨度的色散特性。
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6.发明申请METHOD AND SYSTEM FOR DISTRIBUTED MEASUREMENT AND COMPENSATION OF CHROMATIC DISPERSION IN AN OPTICAL NETWORK 有权用于分布式测量的方法和系统和光网络中色散的补偿公开(公告)号：US20100283996A1
公开(公告)日：2010-11-11
申请号：US12017041
申请日：2008-01-20
申请人： Ping Wai WAN , Derrick Remedios , Patrick Chilufya Chimfwembe , Colin Geoffrey Kelly , James Benson Bacque
发明人： Ping Wai WAN , Derrick Remedios , Patrick Chilufya Chimfwembe , Colin Geoffrey Kelly , James Benson Bacque
IPC分类号： G01N21/00
CPC分类号： H04B10/0775 , H04B2210/075 , H04B2210/078
摘要： A method and apparatus for distributed measurement of chromatic dispersion in an optical network is disclosed. The network comprises optical switching nodes interconnected by optical links. An optical link may comprise multiple spans, each span ending in a transport module which comprises signal-processing components. At least one optical switching node has a probing signal generator transmitting an optical probing signal along a selected path in the network. Probing-signal detectors placed at selected transport modules determine chromatic-dispersion values and send results to a processing unit which determines appropriate placement of compensators or appropriate adjustments of compensators placed along the path. A preferred probing signal has the form of wavelength modulated optical carrier which is further intensity modulated by a periodic, preferably sinusoidal, probing tone. Variation in the phase-shift of the probing tone corresponding to variation of the wavelength of the optical probing signal determines chromatic-dispersion characteristics for different spans of the path.
摘要翻译： 公开了一种用于分布式测量光网络色散的方法和装置。 网络包括通过光链路互连的光交换节点。 光链路可以包括多个跨度，每个跨度结束于传输模块，其包括信号处理组件。 至少一个光交换节点具有探测信号发生器，沿着网络中的选定路径发射光探测信号。 放置在所选传输模块处的探测信号检测器确定色散值并将结果发送到处理单元，该处理单元确定补偿器的适当位置或沿路径放置的补偿器的适当调整。 优选的探测信号具有波长调制光载波的形式，其进一步通过周期性的，优选正弦的探测色调进行强度调制。 与光探测信号的波长变化相对应的探测音的相移的变化确定了路径不同跨度的色散特性。
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7.发明授权Method for network commissioning using amplified spontaneous emission (ASE) sources 失效使用放大自发辐射（ASE）来源进行网络调试的方法公开(公告)号：US07321727B2
公开(公告)日：2008-01-22
申请号：US11178330
申请日：2005-07-12
申请人： Eddie Kai Ho Ng , Jason Christopher De Rocher , Derrick Remedios , James Benson Bacque , Ping Wai Wan
发明人： Eddie Kai Ho Ng , Jason Christopher De Rocher , Derrick Remedios , James Benson Bacque , Ping Wai Wan
CPC分类号： H04B10/075 , H04B10/0775 , H04J14/0227 , H04J14/0241 , H04J14/0283
摘要： This invention provides a method for commissioning an optical network using internal Automatic Spontaneous Emission (ASE) light inherently present in the optical network as a light source (the ASE light source) for measuring losses inside and between nodes in the network. A modular segmented approach is adopted and the network is commissioned segment by segment. The method uses techniques for the correction of the Optical Signal to Noise Ratio induced error as well as the Spectral Filtering Error during the loss computation required for adjusting the gains of the amplifiers at each network node to an appropriate value. Since the method does not require an external laser source that needs to be moved manually from node to node, it greatly reduces the commissioning time. Since it uses only the existing components of the network nodes it also leads to a significant saving in cost.
摘要翻译： 本发明提供一种使用光网络中固有存在的内部自发自发发射（ASE）光作为用于测量网络内部和节点之间的损耗的光源（ASE光源）来调试光网络的方法。 采用模块化分段方式，逐段调试网络。 该方法使用用于校正光信噪比诱导误差的技术以及在将每个网络节点处的放大器的增益调整到适当值所需的损耗计算期间的光谱滤波误差。 由于该方法不需要需要从节点手动移动的外部激光源，因此大大减少了调试时间。 由于它仅使用网络节点的现有组件，因此也可大大节省成本。
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8.发明授权Method and system for compensating for side effects of cross gain modulation in amplified optical networks 有权用于补偿放大光网络中交叉增益调制的副作用的方法和系统公开(公告)号：US07127165B2
公开(公告)日：2006-10-24
申请号：US10628418
申请日：2003-07-29
申请人： Paul David Obeda , Robert Michael Bierman , James Benson Bacque , Colin Geoffrey Kelly , Derrick Remedios , Ping Wai Wan
发明人： Paul David Obeda , Robert Michael Bierman , James Benson Bacque , Colin Geoffrey Kelly , Derrick Remedios , Ping Wai Wan
IPC分类号： H04B10/08
CPC分类号： H04B10/079 , H04B10/07955 , H04B2210/075
摘要： A method and system for compensating for side effects of cross gain modulation in amplified optical networks, which allows reliable identification of expected and unexpected channels in the network is provided. Each optical channel traveling in the optical network is marked with a unique channel signature (expected channel signature), having one or more dither tone modulated onto the optical channel; followed by detecting a spectrum of tones, including said modulated dither tones and ghost tones thereof produced by the cross gain modulation in the optical network, at various locations in the optical network. Amplitudes of the spectrum tones, which belong to the expected channel signature, are compared with a first threshold, while amplitudes of the remaining spectrum tones, which are not the valid tones, are compared with a second threshold, which is lower than the first threshold. The spectrum tones are identified as valid tones if their amplitudes are above the first threshold; and an alarm signaling that the expected channel signature is missing is generated if the amplitude of the spectrum tone is below the first threshold. Yet another alarm is generated signaling that an unexpected channel is detected in the network if the amplitude of at least one of the remaining spectrum tones is exceeding the second threshold. Alternatively, the other alarm is generated if amplitudes of the remaining spectrum tones belonging to one of the allowable channel signatures in the network are above the second threshold. A corresponding system incorporating the step of the methods described above is also provided.
摘要翻译： 提供了一种用于补偿放大光网络中交叉增益调制的副作用的方法和系统，其允许可靠地识别网络中的预期和意外信道。 在光网络中行进的每个光信道被标记为具有调制到光信道上的一个或多个抖动音调的唯一信道签名（预期信道签名）; 随后在光网络中的各个位置处检测包括由光网络中的交叉增益调制产生的所述调制抖动音和其重音的音调。 将属于预期信道签名的频谱音调的幅度与第一阈值进行比较，而不是有效音调的剩余频谱音调的幅度与低于第一阈值的第二阈值进行比较 。 如果它们的幅度高于第一阈值，则频谱色调被识别为有效音调; 并且如果频谱色调的幅度低于第一阈值，则产生警告，指示预期信道签名丢失。 如果剩余频谱色调中的至少一个的幅度超过第二阈值，则产生另一报警，指示在网络中检测到意外信道。 或者，如果属于网络中的一个可允许频道签名的剩余频谱的幅度高于第二阈值，则产生另一警报。 还提供了包括上述方法的步骤的相应系统。
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9.发明授权Method and apparatus for transmission of digital signals over a coaxial cable 失效用于通过同轴电缆传输数字信号的方法和装置公开(公告)号：US07548549B2
公开(公告)日：2009-06-16
申请号：US11265245
申请日：2005-11-03
IPC分类号： H04L12/413
CPC分类号： H04L12/2801
摘要： Ethernet packets are transmitted in full duplex mode over a single coaxial cable, such as RG6 and RG59. Symmetrical full duplex operation is achieved by separating the upstream and downstream signals in the frequency domain whereby a 100BaseT signal is transmitted unmodified in one direction while the other is modulated upon a high frequency carrier to be transmitted in the other direction. In a second embodiment, the separation is in the time domain whereby the signals are sampled in blocks, each block compressed in time and transmitted at a higher rate, thus allowing for the interleaving of upstream and downstream blocks on the same coaxial cable. In a third embodiment, different rate upstream and downstream signals are separated in the frequency domain, but without modulation. The resulting asymmetrical 1000/100 Mb/s Ethernet over coax link is valuable in network architectures where asymmetry in the up and down traffic loads is expected.
摘要翻译： 以全双工模式通过单个同轴电缆（如RG6和RG59）传输以太网数据包。 通过分离频域中的上行和下行信号来实现对称全双工操作，由此100BaseT信号在一个方向上未被修改而另一个在高频载波上被调制以在另一个方向上传输。 在第二实施例中，分离在时域中，由此信号以块为单位进行采样，每个块在时间上压缩并以较高的速率传输，从而允许同一同轴电缆上的上游和下游块的交错。 在第三实施例中，不同速率的上行和下行信号在频域中被分离，但是没有调制。 所产生的不对称1000 / 100Mb / s以太网同轴电缆链路在网络架构中是有价值的，其中预期上行和下行业务负载的不对称性。
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公开(公告)号：US06912340B2
公开(公告)日：2005-06-28
申请号：US10612908
申请日：2003-07-07
申请人： James Benson Bacque
发明人： James Benson Bacque
CPC分类号： G02B6/29386 , G02B6/29317 , G02B6/29382 , G02B6/29395 , H04J14/02
摘要： Optical interconnects and methods for wavelength management are provided to interconnect optical rings while overcoming color-blocking and allowing for wavelength re-use within optical rings. The optical inter-connects having a wavelength selective element such as a reconfigurable add/drop demultiplexer (ROADM) and a band-modulo demultiplexer having a free spectral range (FSR) combined with a pool of wavelength conversion resources. More flexible interconnect systems can use a photonic cross-connect (PXC) to allow sharing of a pool of wavelength conversion resources among several optical rings.
摘要翻译： 提供用于波长管理的光学互连和方法来互连光环，同时克服颜色阻挡并允许光环内的波长重新使用。 具有诸如可重配置分插复用器（ROADM）的波长选择元件和具有与波长转换资源池组合的自由光谱范围（FSR）的带模解复用器的光学互连。 更灵活的互连系统可以使用光子交叉连接（PXC）来允许在多个光环之间共享波长转换资源池。
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