-
1.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。
-
2.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。
-
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。
-
4.发明授权Method and apparatus for gain excursion minimization in automatic gain controlled optical systems 有权自动增益控制光学系统中增益偏移最小化的方法和装置公开(公告)号：US06903867B2
公开(公告)日：2005-06-07
申请号：US10195495
申请日：2002-07-16
CPC分类号： H04B10/2942 , H04B10/2935
摘要： An apparatus and method for minimizing channel gain excursion in an optical system with automatic gain control is provided. The apparatus includes a feedback control loop which dynamically regulates the target gain of an automatic gain controlled (AGC) amplifier so as to compensate for the action of the AGC amplifier to maintain a constant linear average gain without accounting for the distribution of channels that carry signals across the amplifier spectral gain profile, which causes gain excursion of individual channels. The feedback control loop measures gain of individual channels and uses these measurements to regulate the target gain of the amplifier so as to minimize gain excursion of individual channels. If required, the apparatus may be integrated into a package. In one embodiment, the method for regulating the target gain is to maintain constant gain for all channels irrespective of the number of channels that carry a signal. This method is simple and guarantees no gain excursion. In another embodiment, a weight is assigned to an individual channel to calculate a weighted average for the target gain of the amplifier while attempting to minimize gain excursion of individual channels.
摘要翻译： 提供一种用于使具有自动增益控制的光学系统中的通道增益偏移最小化的装置和方法。 该装置包括反馈控制回路，其动态地调节自动增益控制（AGC）放大器的目标增益，以便补偿AGC放大器的动作以维持恒定的线性平均增益，而不考虑携带信号的信道的分布 在放大器频谱增益曲线上，这导致单个通道的增益偏移。 反馈控制环路测量单个通道的增益，并使用这些测量来调节放大器的目标增益，以便最小化各个通道的增益偏移。 如果需要，该装置可以集成到包装中。 在一个实施例中，用于调节目标增益的方法是保持所有通道的恒定增益，而不管携带信号的通道数量如何。 这种方法很简单，保证没有增益偏移。 在另一个实施例中，将权重分配给单个信道以计算放大器的目标增益的加权平均值，同时尝试最小化各个信道的增益偏移。
-
公开(公告)号：US07139480B2
公开(公告)日：2006-11-21
申请号：US10673790
申请日：2003-09-30
申请人： Eddie Kai Ho Ng , Derrick Remedios , Colin Geoffrey Kelly , Ping Wai Wan , John Frederick Groves
发明人： Eddie Kai Ho Ng , Derrick Remedios , Colin Geoffrey Kelly , Ping Wai Wan , John Frederick Groves
IPC分类号： H04B10/08
CPC分类号： H04B10/077 , H04B10/07955
摘要： A method and system for multi-level power management in an optical network is provided. They include three levels of power management. The first level of power management dynamically changes equipment settings in each module of equipment so that required module setpoint values in each module are achieved. The second level of power management determines module setpoint values for each module of equipment within each node in the optical link so that required node setpoint values are achieved. The third level of power management determines node setpoint values at each node in the optical link so that the optical link meets predetermined power specifications. If any of the three levels cannot achieve the required setpoint values, an error signal is generated by that level of power management and sent to the level of power management above it, thus initiating a higher level of power management. As a result, a dynamic and automatic adjustment to changing operating conditions and configurations in the network is provided, which allows to maintain relatively stable network powers. Each level of power management is implemented such that sections of the network can operate independent of each other, thus increasing the survivability of the network.
摘要翻译： 提供了一种用于光网络中多级电源管理的方法和系统。 它们包括三级电源管理。 第一级电源管理动态地更改设备的每个模块中的设备设置，从而实现每个模块中所需的模块设定值。 第二级电源管理确定光链路中每个节点内设备的每个模块的模块设定值，以便实现所需的节点设定值。 电源管理的第三级确定光链路中每个节点处的节点设定值，使得光链路满足预定的功率规格。 如果三个级别中的任何一个级别都不能达到要求的设定值，则通过该级别的功率管理生成错误信号并将其发送到其上方的电源管理级别，从而启动更高级别的电源管理。 结果，提供对网络中变化的操作条件和配置的动态和自动调整，这允许维持相对稳定的网络功率。 每个级别的电源管理被实现，使得网络的各部分可以彼此独立地操作，从而增加网络的生存性。
-
公开(公告)号：US07068932B2
公开(公告)日：2006-06-27
申请号：US10260621
申请日：2002-10-01
申请人： Ping Wai Wan , Derrick Remedios , Eddie Kai Ho Ng
发明人： Ping Wai Wan , Derrick Remedios , Eddie Kai Ho Ng
CPC分类号： H04B10/2942 , H04B10/2935
摘要： A method for automatic initialization of an optical network is provided. A network management system (NMS) performs remote determination of span losses and sets the operating points of network components. The initialization method comprises remotely and automatically setting target gains of optical amplifiers and signal power levels at transmitters and receivers to required operating values. The methods for initialization of the optical network of the embodiments include gain excursion minimization (GEM) for individual channels passing through amplifiers and/or pre-emphasis of the optical link, where channel powers at the transmitters are biased to compensate for the effects of optical amplifiers gain ripple.
摘要翻译： 提供了一种用于光网络的自动初始化的方法。 网络管理系统（NMS）执行远程确定跨度损耗并设置网络组件的工作点。 初始化方法包括将发射机和接收机的光放大器的目标增益和信号功率电平远程并自动设置为所需的操作值。 实施例的光网络的初始化方法包括通过放大器的各个信道的增益偏移最小化（GEM）和/或光链路的预加重，其中在发射机处的信道功率被偏置以补偿光学效应 放大器增益波动。
-
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。
-
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。
-
9.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。
-
10.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。
-
-
-
-
-
-
-
-
-
搜索结果
28 条记录 (耗时 0.029 秒)