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公开(公告)号：US07081986B2
公开(公告)日：2006-07-25
申请号：US10368031
申请日：2003-02-14
CPC分类号： H04B10/2935 , H04B10/0775 , H04B2210/078 , H04J14/0201 , H04J14/0206 , H04J14/0221
摘要： The invention includes a method for controlling amplifier output power in an optical communications network having channel add/drop capability. A first transmission parameter and a second transmission parameter are determined at a first amplifier. In an exemplary embodiment, the first transmission parameter is a composite express signal-to-noise ratio and the second transmission parameter is a composite signal-to-noise ratio. The total output power of a downstream amplifier is adjusted in response to the first transmission parameter and second transmission parameter. A system for implementing the method is also disclosed.
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2.发明授权Method and system for determining channel power in an optical communications network 有权用于确定光通信网络中的信道功率的方法和系统公开(公告)号：US06559985B1
公开(公告)日：2003-05-06
申请号：US09917043
申请日：2001-07-27
IPC分类号： H04B1008
CPC分类号： H04B10/2935 , H04B10/0775 , H04B2210/078 , H04J14/0201 , H04J14/0221 , H04J14/0227
摘要： The invention includes a method for determining channel power in an optical communications network. The method includes determining at least one transmission parameter for a channel. Exemplary transmission parameters include transmission rate and transmission format. A number of channel units is determined in response to the transmission parameter. Channel power is then determined for the channel in response to the number of channel units. A system for implementing the method is also disclosed.
摘要翻译： 本发明包括一种用于确定光通信网络中的信道功率的方法。 该方法包括确定用于信道的至少一个传输参数。 示例性传输参数包括传输速率和传输格式。 响应于传输参数确定多个信道单元。 然后响应于信道单元的数量为信道确定信道功率。 还公开了一种用于实现该方法的系统。
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公开(公告)号：US06614589B2
公开(公告)日：2003-09-02
申请号：US09916859
申请日：2001-07-27
IPC分类号： H04J1402
CPC分类号： H04B10/2935 , H04B10/0775 , H04J14/0201 , H04J14/0221
摘要： The invention includes a method for controlling amplifier output power in an optical communications network. A first transmission parameter is determined at a first amplifier. In an exemplary embodiment, the first transmission parameter is a composite express signal to noise ratio. The total output power of a downstream amplifier is adjusted in response to the first transmission parameter. A system for implementing the method is also disclosed.
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4.发明授权Method and system for controlling amplifier power in an optical communications network having add/drop capability 有权用于控制具有添加/删除能力的光通信网络中的放大器功率的方法和系统公开(公告)号：US06600596B2
公开(公告)日：2003-07-29
申请号：US09917042
申请日：2001-07-27
IPC分类号： H04B1008
CPC分类号： H04B10/2935 , H04B10/0775 , H04B2210/078 , H04J14/0201 , H04J14/0206 , H04J14/0221
摘要： The invention includes a method for controlling amplifier output power in an optical communications network having channel add/drop capability. A first transmission parameter and a second transmission parameter are determined at a first amplifier. In an exemplary embodiment, the first transmission parameter is a composite express signal-to-noise ratio and the second transmission parameter is a composite signal-to-noise ratio. The total output power of a downstream amplifier is adjusted in response to the first transmission parameter and second transmission parameter. A system for implementing the method is also disclosed.
摘要翻译： 本发明包括一种用于控制具有通道加/减能力的光通信网络中的放大器输出功率的方法。 在第一放大器处确定第一传输参数和第二传输参数。 在示例性实施例中，第一传输参数是复合特征信噪比，第二传输参数是复合信噪比。 响应于第一传输参数和第二传输参数来调整下游放大器的总输出功率。 还公开了一种用于实现该方法的系统。
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5.发明授权公开(公告)号：US06904241B2
公开(公告)日：2005-06-07
申请号：US09777786
申请日：2001-02-06
CPC分类号： H04J14/0221 , H04B10/296 , H04J14/0201
摘要： To improve a power balance of an optical add multiplexer, an add amplifier is optically coupled to an add path of an optical add module. A through loss associated with a signal passing through the add module, and an add loss associated with a signal travelling an add path of the add module are known or otherwise calibrated values. An input power measurement of the signal input to the add module is used in conjunction with the through loss, add loss, and number of added channels to determine an add path amplification value. The gain of the add amplifier is controlled according to add path amplification value so that the power level of added channel(s) substantially matches the power level of the WDM signal output from the add multiplexer. Furthermore, the gain profile of the add amplifier preferably matches a gain profile of a signal input to the add module. In this way, the power level and gain profile of the added channel(s) can be controlled to match the power level and gain profile of the signal passing through the add module. These same techniques may also be applied to an optical add/drop multiplexer that not dropping any channels but is adding at least one channel.
摘要翻译： 为了提高光学加法多路复用器的功率平衡，加法放大器光耦合到光学加法模块的添加路径。 与通过添加模块的信号相关联的通过损耗以及与传播添加模块的添加路径的信号相关联的附加损耗是已知的或以其他方式校准的值。 输入到增加模块的信号的输入功率测量结合通过损耗，增加损耗和添加通道数量来确定加法路径放大值。 根据加法路径放大值来控制加法放大器的增益，使得相加信道的功率电平基本上与从加法多路复用器输出的WDM信号的功率电平相匹配。 此外，加法放大器的增益曲线优选地匹配输入到加法模块的信号的增益曲线。 以这种方式，可以控制附加通道的功率电平和增益曲线，以匹配通过增加模块的信号的功率电平和增益曲线。 这些相同的技术也可以应用于光分插复用器，其不会丢弃任何通道，而是添加至少一个通道。
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6.发明授权Power balanced optical add/drop multiplexer and power balancing methods therefore 有权因此，功率平衡光分插复用器和功率平衡方法公开(公告)号：US06885825B2
公开(公告)日：2005-04-26
申请号：US09777774
申请日：2001-02-06
CPC分类号： H04J14/0221 , H04B10/296 , H04J14/0201
摘要： To improve a power balance of an optical add/drop multiplexer, an add amplifier is optically coupled to an add path of an optical add/drop module. A through loss associated with a signal passing through the add/drop module, a drop loss associated with a signal travelling a drop path of the add/drop module, and an add loss associated with a signal travelling an add path of the add/drop module are known or otherwise calibrated values. A dropped channel power measurement is used in conjunction with the through loss, add loss, drop loss, number of dropped channels and number of added channels to determine an add path amplification value. The gain of the add amplifier is controlled according to add path amplification value so that the power level of the added channel(s) substantially matches the power level of the WDM signal output from the add/drop multiplexer. Furthermore, the gain profile of the add amplifier preferably matches a gain profile of a signal input to the add/drop module. In this way, the power level and gain profile of the added channel(s) can be controlled to match the power level and gain profile of the signal passing through the add/drop module.
摘要翻译： 为了提高光分插复用器的功率平衡，添加放大器光耦合到光分插模块的添加路径。 与通过加/减模块的信号相关联的通过损耗，与传播添加/分出模块的放置路径的信号相关联的丢失丢失以及与传播添加/丢弃的添加路径的信号相关联的添加丢失 模块是已知的或以其他方式校准的值。 丢弃的信道功率测量与通过丢失，增加丢失，丢失丢失，丢弃的信道数量和添加的信道数量一起用于确定添加路径放大值。 根据加法路径放大值来控制加法放大器的增益，使得附加信道的功率电平基本上与从分插复用器输出的WDM信号的功率电平相匹配。 此外，加法放大器的增益曲线优选地匹配输入到加/减模块的信号的增益曲线。 以这种方式，可以控制附加通道的功率电平和增益曲线，以匹配通过加/减模块的信号的功率电平和增益曲线。
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7.发明授权Method and system for coordinating and utilizing channel power information in an optical communications network 有权用于协调和利用光通信网络中的信道功率信息的方法和系统公开(公告)号：US07242863B2
公开(公告)日：2007-07-10
申请号：US10062139
申请日：2002-02-01
IPC分类号： H04B10/08
CPC分类号： H04B10/2935 , H04B10/0775 , H04B2210/071 , H04J14/0201 , H04J14/0213 , H04J14/0221
摘要： A method of coordinating channel power information in a wavelength division multiplexed (WDM) optical communication system is disclosed. The method determines weighting values for each channel of the WDM signal based on channel launch powers. A source data object may used to transmit the channel weights and channel information from network elements having channel sources such as transmitters to downstream network elements. Block data objects may be used to identify channel blocks in the system and are also transmitted downstream. The source and block objects may be correlated to determine which channels are in-view at a particular point in the network and thereby determine which of the channel weights should be used as a basis for managing the network at that point. A WDM system is also disclosed which may actively control channel launch powers and feed the adjusted launch powers into the method of coordinating channel power information.
摘要翻译： 公开了一种在波分多路复用（WDM）光通信系统中协调信道功率信息的方法。 该方法基于信道发射功率确定WDM信号的每个信道的加权值。 源数据对象可以用于从具有诸如发射机的信道源的网络元件向下游网络元件发送信道权重和信道信息。 块数据对象可以用于识别系统中的信道块，并且也被传送到下游。 源和块对象可以相关联，以确定在网络中的特定点处哪些信道是视野中的，从而确定哪个信道权重应被用作在该点管理网络的基础。 还公开了一种WDM系统，其可以主动地控制信道发射功率并将调整的发射功率馈送到协调信道功率信息的方法中。
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公开(公告)号：US06900931B1
公开(公告)日：2005-05-31
申请号：US09677344
申请日：2000-10-02
CPC分类号： H04B10/2941 , H01S3/06754 , H01S3/10023 , H01S2301/04
摘要： A three stage optical amplifier is disclosed having a substantially flat gain profile. The amplifier includes a variable optical attenuator coupled between second and third stages of the amplifier and a dispersion compensating element. The attenuation of the optical attenuator is adjusted in accordance with the loss across dispersion compensating element and the optical power input to the amplifier to thereby obtain a substantially flattened gain profile. An offset value can also be used to refine the variable optical attenuator control and minimize nonflatness. The first and second stages are preferably pumped to provide high gain and a low noise figure and the third stage is preferably pumped to provide a high optical conversion efficiency. In an additional example, received optical powers associated with each of the channels in a WDM system are monitored and the attenuators within each amplifier in the system are controlled so that the received powers are substantially equal.
摘要翻译： 公开了具有基本平坦的增益分布的三级光放大器。 放大器包括耦合在放大器的第二和第三级之间的可变光衰减器和色散补偿元件。 光衰减器的衰减根据色散补偿元件的损耗和输入到放大器的光功率进行调节，从而获得基本平坦的增益曲线。 偏移值也可用于细化可变光衰减器控制并最小化非平坦度。 优选地，泵送第一和第二级以提供高增益和低噪声系数，并且优选地泵送第三级以提供高的光转换效率。 在附加示例中，监视与WDM系统中的每个信道相关联的接收光功率，并且控制系统内每个放大器内的衰减器，使得接收功率基本上相等。
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