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公开(公告)号：US09285267B2
公开(公告)日：2016-03-15
申请号：US14147381
申请日：2014-01-03
Applicant: Cisco Technology, Inc.
Inventor： Soeren Gehrke , Theodor Kupfer , James Whiteaway
IPC: H04B10/06 , G01J1/04 , H04B10/079 , H04B10/61 , G01J1/18
CPC classification number: G01J1/0418 , G01J1/18 , H04B10/07955 , H04B10/0799 , H04B10/61
Abstract: A system configured to maintain a consistent local-oscillator-power-to-primary-signal-power ratio (LO/SIG ratio). The system may be configured to: receive the voltages for a plurality of optical signal components split from a combined SIG and LO signal; determine individual factors for the plurality of optical signal components; average the individual factors; determine whether the averaged output is less than an existing minimum reference value for a variable optical attenuator; determine whether the averaged output is greater than an existing maximum reference value for the variable optical attenuator; change the existing minimum reference value to a new value associated with the averaged output, due to determining that the averaged output is less than the existing minimum reference value; change the existing maximum reference value to a new value associated with the averaged output, due to determining that the averaged output is greater than the existing maximum reference value; and change a new value associated with the averaged output to be transmitted to the variable optical attenuator.
Abstract translation: 一种被配置为保持本地振荡器一致信号功率比（LO / SIG比率）一致的系统。 该系统可以被配置为：接收从组合的SIG和LO信号分离的多个光信号分量的电压; 确定所述多个光信号分量的各个因素; 平均个别因素; 确定平均输出是否小于可变光衰减器的现有最小参考值; 确定平均输出是否大于可变光衰减器的现有最大参考值; 由于确定平均输出小于现有最小参考值，将现有最小参考值更改为与平均输出相关联的新值; 由于确定平均输出大于现有的最大参考值，将现有最大参考值改变为与平均输出相关联的新值; 并且将与要发送的平均输出相关联的新值改变为可变光衰减器。
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12.发明申请Modification of Error Statistics Behind Equalizer to Improve Inter-Working with Different FEC codes 有权修正均衡器后的误差统计量，以改善与不同FEC码的互操作公开(公告)号：US20130318417A1
公开(公告)日：2013-11-28
申请号：US13957639
申请日：2013-08-02
Applicant: Cisco Technology, Inc.
Inventor： Markus Danninger , Paul Presslein , Theodor Kupfer
IPC: H03M13/29
CPC classification number: H03M13/29 , H03M13/15 , H03M13/1515 , H03M13/152 , H03M13/2732 , H03M13/2924 , H04L1/0071
Abstract: This invention relates to a receiver circuit which comprises an equalizer (27) and an error decorrelator (25). The error decorrelator being configured for changing (501; 601, 602) the position of symbols. The invention further relates to a corresponding method. This invention finally relates to an interleaving or deinterleaving method which comprises selecting a first number of symbols (204; 302) within a stream of digital data (13; 28) thereby obtaining selected symbols. The method further comprises exchanging (601, 602) the position of at least half of said first number of symbols of said selected symbols with the position of other symbols from said selected symbols. The invention further relates to an interleaving or deinterleaving circuit.
Abstract translation: 本发明涉及一种包括均衡器（27）和误差解相关器（25）的接收机电路。 错误解相关器被配置为改变（501; 601,602）符号的位置。 本发明还涉及相应的方法。 本发明最终涉及交织或解交织方法，其包括在数字数据流（13; 28）内选择第一数量的符号（204; 302），从而获得所选择的符号。 该方法还包括将所述选定符号的所述第一数量的符号的至少一半的位置与所述所选符号的其他符号的位置交换（601,602）。 本发明还涉及交错或解交织电路。
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公开(公告)号：US11573384B2
公开(公告)日：2023-02-07
申请号：US17231594
申请日：2021-04-15
Applicant: Cisco Technology, Inc.
Inventor： Michael Tittenhofer , Theodor Kupfer , Viktor Brauer
IPC: G02B6/42 , H01R13/514 , H01R43/26
Abstract: In one embodiment, a module for plugging into a QSFP-DD (Quad Small Form Factor Pluggable Double Density) cage is provided that has one or more projections for contacting a QSFP-DD optical module in an adjacent QSFP-DD recess of the QSFP-DD cage so as to evacuate heat from, and or provide power to, the QSFP-DD optical module.
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公开(公告)号：US20230028883A1
公开(公告)日：2023-01-26
申请号：US17516847
申请日：2021-11-02
Applicant: Cisco Technology, Inc.
Inventor： Christian Rainer Raabe , Michael Tittenhofer , Theodor Kupfer
Abstract: Presented herein are a submount architecture for an electro-optical engine, which may be embodied as an apparatus in the form of at least an electro-optical engine and a multimode node, and a method for providing the same. According to at least one example, an apparatus includes a printed circuit board (PCB), a substrate with a finer structuring than the PCB, and electro-optical components. A bottom surface of the substrate is coupled to the PCB and electro-optical components are mounted on or in a top surface of the substrate. The electro-optical components include one or more optical components arranged to emit optical signals towards and/or receive optical signals from an area above the top surface of the substrate.
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Patent Agency Ranking
公开(公告)号：US09716555B2
公开(公告)日：2017-07-25
申请号：US15092984
申请日：2016-04-07
Applicant: Cisco Technology, Inc.
Inventor： Thomas Duthel , Juergen Hauenschild , Theodor Kupfer
IPC: H04B10/61 , H04B10/06 , H04B10/079
CPC classification number: H04B10/616 , H04B10/07955
Abstract: An optical signal is received at a coherent optical receiver. The received optical signal is converted to a first electrical signal and a second electrical signal through a first photodetector and a second photodetector, respectively. The first electrical signal is input into a first single input variable gain amplifier, and the second electrical signal is input into a second single input variable gain amplifier. A gain of at least one of the first single input variable gain amplifier or the second single input variable gain amplifier is controlled to balance the output of the first single input variable gain amplifier and the output of the second single input variable gain amplifier. The output of the first single input variable gain amplifier and the output of the second single input variable gain amplifier are input into a differential amplifier. A receiver output is obtained at an output of the differential amplifier.
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公开(公告)号：US09584260B2
公开(公告)日：2017-02-28
申请号：US14198867
申请日：2014-03-06
Applicant: Cisco Technology, Inc.
Inventor： Chris Fludger , Theodor Kupfer , Fabrizio Forghieri , Pierluigi Poggiolini , Gabriella Bosco , Andrea Carena , Vittorio Curri
IPC: H04L1/00 , H04J14/06 , H04B10/556 , H04B10/2513 , H04B10/516 , H04B10/54 , H04B10/61 , H04B10/2569
CPC classification number: H04L1/0042 , H04B10/25137 , H04B10/2569 , H04B10/5161 , H04B10/541 , H04B10/61 , H04B10/614 , H04B10/616 , H04J14/06
Abstract: A method for transmitting a coherent optical data signal includes receiving a data signal from an interface, and encoding the data signal with a forward error correcting (FEC) encoder according to a mix of modulation formats. The FEC encoder generates an FEC encoded signal which is used to generate modulation symbols according to the modulation formats. The FEC encoded signal of modulation symbols is spectrally shaped to generate a shaped signal, and pre-distorted before transmission. The shaped signal is pre-distorted by adding a predetermined amount of chromatic dispersion to generate a smoothed signal, and the smoothed signal is transmitted according to the modulation formats.
Abstract translation: 用于发送相干光数据信号的方法包括从接口接收数据信号，并且根据调制格式的混合使用前向纠错（FEC）编码器对数据信号进行编码。 FEC编码器生成用于根据调制格式生成调制符号的FEC编码信号。 调制符号的FEC编码信号被频谱整形以产生成形信号，并且在传输之前被预失真。 通过添加预定量的色散以产生平滑的信号来对成形信号进行预失真，并根据调制格式发送平滑的信号。
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公开(公告)号：US20160226595A1
公开(公告)日：2016-08-04
申请号：US15092984
申请日：2016-04-07
Applicant: Cisco Technology, Inc.
Inventor： Thomas Duthel , Juergen Hauenschild , Theodor Kupfer
IPC: H04B10/61 , H04B10/079
CPC classification number: H04B10/616 , H04B10/07955
Abstract: An optical signal is received at a coherent optical receiver. The received optical signal is converted to a first electrical signal and a second electrical signal through a first photodetector and a second photodetector, respectively. The first electrical signal is input into a first single input variable gain amplifier, and the second electrical signal is input into a second single input variable gain amplifier. A gain of at least one of the first single input variable gain amplifier or the second single input variable gain amplifier is controlled to balance the output of the first single input variable gain amplifier and the output of the second single input variable gain amplifier. The output of the first single input variable gain amplifier and the output of the second single input variable gain amplifier are input into a differential amplifier. A receiver output is obtained at an output of the differential amplifier.
Abstract translation: 在相干光接收机处接收光信号。 所接收的光信号分别通过第一光电检测器和第二光电检测器转换成第一电信号和第二电信号。 第一电信号被输入到第一单输入可变增益放大器中，并且第二电信号被输入到第二单输入可变增益放大器。 控制第一单输入可变增益放大器或第二单输入可变增益放大器中的至少一个的增益，以平衡第一单输入可变增益放大器的输出和第二单输入可变增益放大器的输出。 第一单输入可变增益放大器的输出和第二单输入可变增益放大器的输出被输入到差分放大器中。 在差分放大器的输出处获得接收器输出。
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公开(公告)号：US20150256266A1
公开(公告)日：2015-09-10
申请号：US14202293
申请日：2014-03-10
Applicant: Cisco Technology, Inc.
Inventor： Thomas Duthel , Juergen Hauenschild , Theodor Kupfer
IPC: H04B10/61 , H04B10/079
CPC classification number: H04B10/616 , H04B10/07955
Abstract: An optical signal is received at a coherent optical receiver. The received optical signal is converted to a first electrical signal and a second electrical signal through a first photodetector and a second photodetector, respectively. The first electrical signal is input into a first single input variable gain amplifier, and the second electrical signal is input into a second single input variable gain amplifier. A gain of at least one of the first single input variable gain amplifier or the second single input variable gain amplifier is controlled to balance the output of the first single input variable gain amplifier and the output of the second single input variable gain amplifier. The output of the first single input variable gain amplifier and the output of the second single input variable gain amplifier are input into a differential amplifier. A receiver output is obtained at an output of the differential amplifier.
Abstract translation: 在相干光接收机处接收光信号。 所接收的光信号分别通过第一光电检测器和第二光电检测器转换成第一电信号和第二电信号。 第一电信号被输入到第一单输入可变增益放大器中，并且第二电信号被输入到第二单输入可变增益放大器。 控制第一单输入可变增益放大器或第二单输入可变增益放大器中的至少一个的增益，以平衡第一单输入可变增益放大器的输出和第二单输入可变增益放大器的输出。 第一单输入可变增益放大器的输出和第二单输入可变增益放大器的输出被输入到差分放大器中。 在差分放大器的输出处获得接收器输出。
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19.发明授权Modification of error statistics behind equalizer to improve inter-working with different FEC codes 有权改进均衡器后的误差统计，以改善与不同FEC代码的相互作用公开(公告)号：US08874988B2
公开(公告)日：2014-10-28
申请号：US13957639
申请日：2013-08-02
Applicant: Cisco Technology, Inc.
Inventor： Markus Danninger , Paul Presslein , Theodor Kupfer
CPC classification number: H03M13/29 , H03M13/15 , H03M13/1515 , H03M13/152 , H03M13/2732 , H03M13/2924 , H04L1/0071
Abstract: This invention relates to a receiver circuit which comprises an equalizer (27) and an error decorrelator (25). The error decorrelator being configured for changing (501; 601, 602) the position of symbols. The invention further relates to a corresponding method. This invention finally relates to an interleaving or deinterleaving method which comprises selecting a first number of symbols (204; 302) within a stream of digital data (13; 28) thereby obtaining selected symbols. The method further comprises exchanging (601, 602) the position of at least half of said first number of symbols of said selected symbols with the position of other symbols from said selected symbols. The invention further relates to an interleaving or deinterleaving circuit.
Abstract translation: 本发明涉及一种包括均衡器（27）和误差解相关器（25）的接收机电路。 错误解相关器被配置为改变（501; 601,602）符号的位置。 本发明还涉及相应的方法。 本发明最终涉及交织或解交织方法，其包括在数字数据流（13; 28）内选择第一数量的符号（204; 302），从而获得所选择的符号。 该方法还包括将所述选定符号的所述第一数量的符号的至少一半的位置与所述所选符号的其他符号的位置交换（601,602）。 本发明还涉及交错或解交织电路。
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