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公开(公告)号：US11258528B2
公开(公告)日：2022-02-22
申请号：US16578396
申请日：2019-09-22
申请人： Jeffrey T. Rahn , Kuang-Tsan Wu , Steven J. Hand , David F. Welch
发明人： Jeffrey T. Rahn , Kuang-Tsan Wu , Steven J. Hand , David F. Welch
摘要： A network or system in which a hub or primary node may communicate with a plurality of leaf or secondary nodes. The hub node may operate or have a capacity greater than that of the leaf nodes. Accordingly, relatively inexpensive leaf nodes may be deployed to receive data carrying optical signals from, and supply data carrying optical signals to, the hub node. One or more connections may couple each leaf node to the hub node, whereby each connection may include one or more spans or segments of optical fibers, optical amplifiers, optical splitters/combiners, and optical add/drop multiplexer, for example. Optical subcarriers may be transmitted over such connections, each carrying a data stream. The subcarriers may be generated by a combination of a laser and a modulator, such that multiple lasers and modulators are not required, and costs may be reduced. As the bandwidth or capacity requirements of the leaf nodes change, the number of subcarriers, and thus the amount of data provided to each node, may be changed accordingly. Each subcarrier within a dedicated group of subcarriers may carry OAM or control channel information to a corresponding leaf node, and such information may be used by the leaf node to configure the leaf node to have a desired bandwidth or capacity.
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公开(公告)号：US20210091876A1
公开(公告)日：2021-03-25
申请号：US16578396
申请日：2019-09-22
申请人： Jeffrey T. Rahn , Kuang-Tsan Wu , Steven J. Hand , David F. Welsh
发明人： Jeffrey T. Rahn , Kuang-Tsan Wu , Steven J. Hand , David F. Welsh
摘要： A network or system in which a hub or primary node may communicate with a plurality of leaf or secondary nodes. The hub node may operate or have a capacity greater than that of the leaf nodes. Accordingly, relatively inexpensive leaf nodes may be deployed to receive data carrying optical signals from, and supply data carrying optical signals to, the hub node. One or more connections may couple each leaf node to the hub node, whereby each connection may include one or more spans or segments of optical fibers, optical amplifiers, optical splitters/combiners, and optical add/drop multiplexer, for example. Optical subcarriers may be transmitted over such connections, each carrying a data stream. The subcarriers may be generated by a combination of a laser and a modulator, such that multiple lasers and modulators are not required, and costs may be reduced. As the bandwidth or capacity requirements of the leaf nodes change, the number of subcarriers, and thus the amount of data provided to each node, may be changed accordingly. Each subcarrier within a dedicated group of subcarriers may carry OAM or control channel information to a corresponding leaf node, and such information may be used by the leaf node to configure the leaf node to have a desired bandwidth or capacity.
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公开(公告)号：US20140001347A1
公开(公告)日：2014-01-02
申请号：US13537805
申请日：2012-06-29
CPC分类号： G02B5/30 , G01J1/0425 , G01J1/0429 , G01J1/4228 , G02B5/32 , G02B6/12007 , G02B6/12019 , G02B6/126 , H04J14/02 , H04J14/0279 , H04J14/06
摘要： An optical system may include a polarization beam splitter having an input that receives multiple optical signals, a first output and a second output. The first output may provide components of the multiple optical signals having a first polarization. The second output may provide components of the multiple optical signals having a second polarization. The optical system may include a rotator having an input that receives the components to rotate the first polarization such that each of the components has the second polarization, and an output to supply components as rotated components.The optical system may also include an optical circuit including a substrate. The rotator may be separate from the substrate. The optical circuit may include an optical demultiplexer circuit provided on the substrate to receive the rotated components and the components.
摘要翻译： 光学系统可以包括具有接收多个光信号，第一输出和第二输出的输入的偏振分束器。 第一输出可以提供具有第一偏振的多个光信号的分量。 第二输出可以提供具有第二偏振的多个光信号的分量。 光学系统可以包括旋转器，其具有接收组件以旋转第一偏振的输入，使得每个组件具有第二偏振，以及输出以将组件提供为旋转分量。 光学系统还可以包括包括衬底的光学电路。 旋转体可以与基底分开。 光电路可以包括设置在基板上以接收旋转的部件和部件的光解复用器电路。
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公开(公告)号：US09261635B2
公开(公告)日：2016-02-16
申请号：US13537805
申请日：2012-06-29
IPC分类号： G02F1/01 , G02B5/30 , G02B5/32 , G01J1/04 , H04J14/06 , G02B6/12 , G02B6/126 , G01J1/42 , H04J14/02
CPC分类号： G02B5/30 , G01J1/0425 , G01J1/0429 , G01J1/4228 , G02B5/32 , G02B6/12007 , G02B6/12019 , G02B6/126 , H04J14/02 , H04J14/0279 , H04J14/06
摘要： An optical system may include a polarization beam splitter having an input that receives multiple optical signals, a first output and a second output. The first output may provide components of the multiple optical signals having a first polarization. The second output may provide components of the multiple optical signals having a second polarization. The optical system may include a rotator having an input that receives the components to rotate the first polarization such that each of the components has the second polarization, and an output to supply components as rotated components.The optical system may also include an optical circuit including a substrate. The rotator may be separate from the substrate. The optical circuit may include an optical demultiplexer circuit provided on the substrate to receive the rotated components and the components.
摘要翻译： 光学系统可以包括具有接收多个光信号，第一输出和第二输出的输入的偏振分束器。 第一输出可以提供具有第一偏振的多个光信号的分量。 第二输出可以提供具有第二偏振的多个光信号的分量。 光学系统可以包括旋转器，其具有接收组件以旋转第一偏振的输入，使得每个组件具有第二偏振，以及用于将组件作为旋转分量供给的输出。 光学系统还可以包括包括衬底的光学电路。 旋转体可以与基底分开。 光电路可以包括设置在基板上以接收旋转的部件和部件的光解复用器电路。
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公开(公告)号：US08781324B2
公开(公告)日：2014-07-15
申请号：US12816599
申请日：2010-06-16
CPC分类号： G02B6/12004 , G02B6/12009 , G02B6/264 , G02B2006/12126 , H04J14/02 , H04J14/06
摘要： A coherent optical receiver circuit is disclosed in which various components of the optical receiver may be provided or integrated, in one example, on a common substrate. Further integration is achieved by incorporating various optical demultiplexer designs that are relatively compact and conserve space on the surface of the substrate. The optical receiver circuit may be used to demultiplex quadrature phase shift keying (QPSK) optical signals.
摘要翻译： 公开了一种相干光接收器电路，其中在一个示例中，可以在公共基板上提供或集成光接收器的各种部件。 通过结合相对紧凑的各种光解复用器设计并节省衬底表面上的空间来实现进一步的集成。 光接收机电路可用于解复用正交相移键控（QPSK）光信号。
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公开(公告)号：US08594514B2
公开(公告)日：2013-11-26
申请号：US13338485
申请日：2011-12-28
申请人： Jeffrey T. Rahn
发明人： Jeffrey T. Rahn
IPC分类号： H04B10/04
CPC分类号： H04B10/0779
摘要： A system receives a phase-modulated signal that carries client symbols and a sequence that includes first symbols on which a first tone is to be based and having a first power level, and second symbols on which a second tone is to be based and having a second power level; processes the sequence to generate the first tone and the second tone; determines a power difference based on the first power level and the second power level; retrieves condition information that identifies a threshold for determining whether a condition is associated with the signal; determines whether the power difference is greater than the threshold; and outputs an instruction, to adjust a parameter, used to transmit the signal, based on the determination that the condition is associated with the signal, where adjusting the parameter causes the power difference to decrease to a level that is less than the threshold.
摘要翻译： 系统接收携带客户端符号的相位调制信号和包含第一音调将基于第一符号且具有第一功率电平的第一符号的序列，以及第二音调将基于第二符号 第二功率水平; 处理该序列以产生第一音调和第二音调; 基于第一功率电平和第二功率电平来确定功率差; 检索识别用于确定条件是否与所述信号相关联的阈值的条件信息; 确定功率差是否大于阈值; 并输出用于调整用于发送信号的参数的指令，其中，所述判定与所述信号相关联，所述参数的调整使所述功率差降低到小于所述阈值的水平。
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公开(公告)号：US08238760B2
公开(公告)日：2012-08-07
申请号：US12730207
申请日：2010-03-23
申请人： Jeffrey T. Rahn
发明人： Jeffrey T. Rahn
IPC分类号： H04B10/06
CPC分类号： H04L27/223 , H04B10/6971 , H04J14/02 , H04J14/06 , H04L1/0047
摘要： The present invention provides a system, apparatus and method to improve the signal-to-noise ratio performance in receivers configured to receive differential data signals. According to various embodiments of the invention, a received differential signal is processed to consider both forward-looking and backward-looking error components to improve SNR performance, and ultimately the reach of the optical line system. Additional processing is provided to further enhance noise tolerance related to chromatic dispersion.
摘要翻译： 本发明提供一种用于改善接收器中的信噪比性能的系统，装置和方法，该接收器被配置为接收差分数据信号。 根据本发明的各种实施例，处理接收到的差分信号以考虑前瞻性和后向误差分量两者以提高SNR性能，最终考虑光线路系统的范围。 提供附加处理以进一步增强与色散相关的噪声容限。
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8.发明授权Forward error correction (FEC) convergence by controlling reliability levels of decoded words in a soft FEC decoder 有权通过控制软FEC解码器中的解码字的可靠性水平来进行前向纠错（FEC）收敛公开(公告)号：US08645788B2
公开(公告)日：2014-02-04
申请号：US13341226
申请日：2011-12-30
CPC分类号： H03M13/2963 , H03M13/451 , H04L1/005
摘要： A system receives a first word on which to perform error correction; identifies combinations in which encoded bits, within the first word, can be inverted; generates candidate words based on the first word and the combinations; decodes the candidate words; determines distances between the decoded words and the first word; selects, as a second word, one of the decoded words associated with a shortest distance; compares the second word to the first word to identify errors within the first word; generates a value to cause a reliability level of the first word to increase when a quantity of the errors is less than a threshold; generates another value to cause a reliability level of the first word to decrease when the quantity of the errors is not less than the threshold; and outputs a third word based on the first word, and the value or the other value.
摘要翻译： 系统接收要进行纠错的第一个字; 识别其中可以反转第一个单词内的编码比特的组合; 基于第一个单词和组合生成候选词; 解码候选词; 确定解码字与第一字之间的距离; 选择与最短距离相关联的解码字之一作为第二个字; 将第二个单词与第一个单词进行比较，以识别第一个单词内的错误; 产生一个值，当误差量小于阈值时，使第一个字的可靠性水平增加; 产生另一个值，当误差量不小于阈值时，使第一个字的可靠性水平降低; 并且基于第一个字，以及该值或另一个值输出第三个字。
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公开(公告)号：US20110293292A1
公开(公告)日：2011-12-01
申请号：US12790780
申请日：2010-05-28
申请人： Huan-Shang Tsai , Jeffrey T. Rahn
发明人： Huan-Shang Tsai , Jeffrey T. Rahn
IPC分类号： H04B10/06
CPC分类号： H04B10/697
摘要： An optical receiver circuit is disclosed in which a number of electrical signals are processed to extract data encoded therein. The electrical signals may be compared during the process to selectively remove one or more waveforms from one or more corresponding electrical signals. Various data signals, each including one or more waveforms, may then be processed to extract the encoded data. The optical receiver circuit reduces, or eliminates, electrical offsets which may be present in one or more of the electrical signals to reduce corresponding errors in the encoded data signals.
摘要翻译： 公开了一种光接收机电路，其中处理多个电信号以提取其中编码的数据。 可以在该过程期间比较电信号以选择性地从一个或多个对应的电信号中去除一个或多个波形。 然后可以处理各自包括一个或多个波形的数据信号以提取编码数据。 光接收器电路减少或消除可能存在于一个或多个电信号中的电偏移以减少编码数据信号中的相应误差。
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公开(公告)号：US20100322623A1
公开(公告)日：2010-12-23
申请号：US12730207
申请日：2010-03-23
申请人： Jeffrey T. Rahn
发明人： Jeffrey T. Rahn
IPC分类号： H04K3/00
CPC分类号： H04L27/223 , H04B10/6971 , H04J14/02 , H04J14/06 , H04L1/0047
摘要： The present invention provides a system, apparatus and method to improve the signal-to-noise ratio performance in receivers configured to receive differential data signals. According to various embodiments of the invention, a received differential signal is processed to consider both forward-looking and backward-looking error components to improve SNR performance, and ultimately the reach of the optical line system. Additional processing is provided to further enhance noise tolerance related to chromatic dispersion.
摘要翻译： 本发明提供一种用于改善接收器中的信噪比性能的系统，装置和方法，该接收器被配置为接收差分数据信号。 根据本发明的各种实施例，处理接收到的差分信号以考虑前瞻性和后向误差分量两者以提高SNR性能，最终考虑光线路系统的范围。 提供附加处理以进一步增强与色散相关的噪声容限。
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