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    Optimization of Optical Transmission Capacity
    2.
    发明申请
    Optimization of Optical Transmission Capacity 有权
    光传输容量优化

    公开(公告)号：US20160142179A1

    公开(公告)日：2016-05-19

    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 ,  H04B10/2569 ,  H04J14/06 ,  H04B10/516

    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。

    MULTIMODE POWER CONTROL SCHEME FOR OPTICAL MODULE
    3.
    发明公开
    MULTIMODE POWER CONTROL SCHEME FOR OPTICAL MODULE 审中-公开

    公开(公告)号：US20240171279A1

    公开(公告)日：2024-05-23

    申请号：US17989999

    申请日：2022-11-18

    Applicant: Cisco Technology, Inc.

    Inventor： Antonio Carugati ,  Jerrold M. Pianin ,  Theodor Kupfer

    IPC: H04B10/2581 ,  H04B10/80

    CPC classification number: H04B10/2581 ,  H04B10/808

    Abstract: A method is performed by a host assembly including a controller, a power supply circuit, and a host connector to be connected to an optical module of a particular type among different types of optical modules respectively configured to accept different types of supply voltages. The method includes: when the optical module is connected to the host assembly, identifying a particular type of supply voltage, among the different types of the supply voltages, that the optical module is configured to accept; selecting, among different power modes available to the host assembly that are respectively compatible with the different types of the supply voltages, a particular power mode that is compatible with the particular type of the supply voltage; and operating in the particular power mode to provide the particular type of the supply voltage to the optical module.

    Network cabinet module
    4.
    发明授权
    Network cabinet module 有权

    公开(公告)号：US11112572B2

    公开(公告)日：2021-09-07

    申请号：US16591531

    申请日：2019-10-02

    Applicant: Cisco Technology, Inc.

    Inventor： Michael Tittenhofer ,  Theodor Kupfer ,  Viktor Brauer

    IPC: H05K5/02 ,  H05K7/14 ,  H05K7/20 ,  G02B6/42

    Abstract: In one embodiment, a pluggable module for insertion into a socket of a network cabinet is disclosed, the pluggable module comprising a body having first and second portions arranged along an axis, wherein the module is arranged for insertion of the first portion into said socket in a direction of insertion along the axis, whereupon the second portion protrudes from said socket along the axis and away from the direction of insertion, and wherein the second portion comprises a first heat sink on a surface of the second portion, wherein the first heat sink comprises a plurality of parallel fins aligned with the axis of insertion.

    OPTICAL COMMUNICATION RECEPTION SYSTEM
    7.
    发明申请
    OPTICAL COMMUNICATION RECEPTION SYSTEM 审中-公开
    光通信接收系统

    公开(公告)号：US20140117200A1

    公开(公告)日：2014-05-01

    申请号：US14147381

    申请日：2014-01-03

    Applicant: Cisco Technology, Inc.

    Inventor： Soeren Gehrke ,  Theodor Kupfer ,  James Whiteaway

    IPC: G01J1/04 ,  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。

    Gigabit multimode bidirectional optical module
    8.
    发明授权
    Gigabit multimode bidirectional optical module 有权

    公开(公告)号：US11683099B1

    公开(公告)日：2023-06-20

    申请号：US17484187

    申请日：2021-09-24

    Applicant: Cisco Technology, Inc.

    Inventor： Christian Rainer Raabe ,  Theodor Kupfer

    IPC: H04B10/50 ,  H04B10/572 ,  H04B10/25

    CPC classification number: H04B10/5053 ,  H04B10/25 ,  H04B10/506 ,  H04B10/572

    Abstract: At a controller of an optical module including optical transmitters and optical receivers coupled to the controller and coupled to first and second optical fibers: responsive to a first command, first configuring the optical module to operate in a normal mode in which the optical module operates at a maximum communication capacity by transmitting and receiving a maximum number of wavelengths, that the optical module is capable of transmitting and receiving, on each of the first optical fiber and the second optical fiber; and responsive to a second command, second configuring the optical module to operate in a backward compatible legacy mode in which the optical module operates at a reduced communication capacity compatible with a legacy optical module by transmitting and receiving a reduced number of wavelengths, that is less than the maximum number of wavelengths, on each of the first optical fiber and the second optical fiber.

    SUBMOUNT ARCHITECTURE FOR MULTIMODE NODES
    9.
    发明申请
    SUBMOUNT ARCHITECTURE FOR MULTIMODE NODES 有权

    公开(公告)号：US20230026423A1

    公开(公告)日：2023-01-26

    申请号：US17381694

    申请日：2021-07-21

    Applicant: Cisco Technology, Inc.

    Inventor： Christian Rainer Raabe ,  Michael Tittenhofer ,  Theodor Kupfer

    IPC: H01S5/024 ,  H01L23/367 ,  H01S5/0234 ,  H01S5/02345

    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 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.

    Common mode rejection ratio control for coherent optical receivers
    10.
    发明授权
    Common mode rejection ratio control for coherent optical receivers 有权
    用于相干光接收机的共模抑制比控制

    公开(公告)号：US09337937B2

    公开(公告)日：2016-05-10

    申请号：US14202293

    申请日：2014-03-10

    Applicant: Cisco Technology, Inc.

    Inventor： Thomas Duthel ,  Juergen Hauenschild ,  Theodor Kupfer

    IPC: H04B10/61 ,  H04B10/06 ,  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.

    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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