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11. 发明授权

US06587239B1 Optical fiber network having increased channel capacity 失效
标题翻译：光纤网络具有增加的信道容量
公开(公告)号：US06587239B1
公开(公告)日：2003-07-01
申请号：US09510685
申请日：2000-02-23
申请人： Henry Hung
发明人： Henry Hung
IPC分类号： H04J1402
CPC分类号： H04J14/0282 , G02B6/2821 , H01S3/0675 , H01S3/2383 , H04J14/002 , H04J14/02 , H04J14/0201 , H04J14/0227 , H04J14/0241 , H04J14/0283 , H04J14/0284 , H04J14/0286
摘要： Optical communication system apparatus and methods of operating an optical communications system is described. The system advantageously may utilize existing optical fiber networks and provide significantly increased channel capacity. In accordance with one aspect of the invention the system apparatus provides for a plurality of communications channels and a processor unit receives requests for allocation of one or more channels from a node coupled to the optical communications system. The system apparatus dynamically allocates one or more channels selected from unused channels.
摘要翻译：描述了光通信系统装置和操作光通信系统的方法。该系统有利地利用现有的光纤网络并提供显着增加的信道容量。根据本发明的一个方面，系统装置提供多个通信信道，并且处理器单元从耦合到光通信系统的节点接收对一个或多个信道的分配请求。系统设备动态地分配从未使用的信道中选择的一个或多个信道。

12. 发明申请

US20020080436A1 Signal-concentrating, photonic, pulse-shaping apparatus and method 审中-公开
标题翻译：信号集中，光子，脉冲整形设备和方法
公开(公告)号：US20020080436A1
公开(公告)日：2002-06-27
申请号：US09753503
申请日：2000-12-27
发明人： John N. Hait
IPC分类号： G02F001/00 , G02F002/00 , H01S003/00 , H04B010/00 , H04J014/00
CPC分类号： H04J14/002 , G02B6/2861 , G02B6/2935 , H04J14/02 , H04J14/06
摘要： An encoding and decoding method and apparatus support high speed multiplexing with a resolution of up to a single wavelength, in the speed range appropriate for photonic signal processing. Signals are split into daughter signals, having the exact wave form, absent amplitude equality, of the parent. Daughter signals may be serialized by a delay, spacing one daughter after another. A decoder splits the daughter signals into granddaughter signals and recombines them to provide noninterference, constructive interference, and destructive interference. By detection of photonic interference, a reconstituted output pulse may be formed, completely regenerating all information from the original signal. Pulse shaping may be accomplished by overlapping the times at which coherent daughter pulses exist. Overlaps between various daughter pulses may be used to provide amplitude increases in areas of interference having substantially reduced pulse durations, while lesser amplitudes remain elsewhere. Eventually, energy conservation may render lower amplitude regions below a noise level or cutoff level, thus concentrating the signal in a shorter duration, allowing more pulses to be encoded into a carrier, with less total energy density in the carrier for each pulse.
摘要翻译：一种编码和解码方法和装置在适用于光信号处理的速度范围内支持高达单波长分辨率的高速复用。信号被分割成子信号，具有母方的确切波形，不存在幅度相等。子信号可以被延迟序列化，间隔一个女儿。解码器将子信号分解为孙女信号并将其重新组合以提供不干扰，建设性干扰和破坏性干扰。通过检测光子干涉，可以形成重构的输出脉冲，从原始信号完全再生所有信息。可以通过重叠存在相干子脉冲的时间来实现脉冲整形。可以使用各个子脉冲之间的重叠来提供具有显着减小的脉冲持续时间的干扰区域的幅度增加，而较小幅度保持在其他位置。最终，节能可能使较低幅度区域低于噪声电平或截止电平，从而将信号集中在更短的持续时间内，从而允许将更多脉冲编码到载波中，对于每个脉冲，载波中的总能量密度较小。

13. 发明授权

US5473459A Optical telecommunications system using phase compensation interferometry 失效
标题翻译：光通信系统采用相位补偿干涉测量
公开(公告)号：US5473459A
公开(公告)日：1995-12-05
申请号：US160856
申请日：1993-12-03
申请人： Charles M. Davis
发明人： Charles M. Davis
IPC分类号： H04B10/142 , H04J14/00 , H04J14/08 , H04B10/04 , H04B10/00
CPC分类号： H04B10/548 , H04B10/67 , H04J14/08 , H04J14/002
摘要： Optical telecommunications systems use phase compensation interferometry wherein receiver units have interferometer configurations with path length differences identical to path length differences of arms in interferometer configurations at corresponding transmitter units. Faraday rotating mirrors are used to minimize sensitivity to polarization effects. A modified Michelson interferometer structure is used to provide optical signals which convert to electrical signals in a form allowing relatively easy demodulation. A demodulation circuit uses the property whereby two signals have a 90.degree. phase shift.
摘要翻译：光通信系统使用相位补偿干涉测量，其中接收器单元具有干涉仪配置，其路径长度差异与相应发射机单元处的干涉仪配置中的臂的路径长度差异相同。法拉第旋转镜用于最小化对极化效应的敏感性。改进的迈克尔逊干涉仪结构用于提供以允许相对容易解调的形式转换成电信号的光信号。解调电路使用两个信号具有90°相移的特性。

14. 发明授权

US4956834A Coherence multiplexed optical signal transmission system and method 失效
标题翻译：相干多路复用光信号传输系统及方法
公开(公告)号：US4956834A
公开(公告)日：1990-09-11
申请号：US296445
申请日：1989-01-12
申请人： Jeffrey O. Coleman
发明人： Jeffrey O. Coleman
IPC分类号： H04B10/142 , H04J14/00 , H04J14/08
CPC分类号： H04J14/08 , H04J14/002
摘要： A transmitter includes a coupler having N input prots and N output ports, N being the number of input signals to be multiplexed. The coupler has a unitary coupling matrix, and receives N input signals at its input ports to produce N intermediate transmitting signals at its output ports. The intermediate transmitter signals are subjected to different time delays and then combined into a composite optical signal launched onto an optical bus. At the receiver, the composite signal is divided into N intermediate receiver signals, the intermediate receiver signals are time delayed in the same manner as in the transmitter, and then coupled to input ports of a receiver coupler that has a coupling matrix equal to the transpose of the transmitter's coupling matrix. The output port signals may then be detected and processed to decouple the N data channels.
摘要翻译：发射机包括具有N个输入源和N个输出端口的耦合器，N是待复用的输入信号的数量。耦合器具有单一耦合矩阵，并在其输入端口接收N个输入信号，以在其输出端口产生N个中间发送信号。中间发射机信号经受不同的时间延迟，然后组合成发射到光总线上的复合光信号。在接收机处，复合信号被分为N个中间接收机信号，中间接收机信号以与发射机相同的方式进行时间延迟，然后耦合到具有等于转置的耦合矩阵的接收机耦合器的输入端口的发射机的耦合矩阵。然后可以检测和处理输出端口信号以解耦N个数据信道。

15. 发明授权

US4860279A Source modulated coherence multiplexed optical signal transmission system 失效
标题翻译：源调制相干复用光信号传输系统
公开(公告)号：US4860279A
公开(公告)日：1989-08-22
申请号：US278613
申请日：1988-11-30
申请人： R. Aaron Falk , Jeffrey O. Coleman
发明人： R. Aaron Falk , Jeffrey O. Coleman
IPC分类号： H04J14/00 , H04J14/08
CPC分类号： H04J14/08 , H04J14/002
摘要： A coherence multiplexed optical signal transmission system in which modulation is introduced into the system by modulating the optical carrier or source signal, rather than by modulating the optical path length of an interferometer arm. The system comprises a transmitter and receiver interconnected by an optical bus. The transmitter comprises a plurality of transmitter interferometers, each transmitter interferometer including a modulated optical source. The transmitter interferometers have optical path length differences that are greater than the coherence length of the associated source, and that differ from one another by an amount greater than the source coherence length. The receiver comprises a plurality of receiver interferometers having path length differences matching those of the transmitter interferometers. Multiplexing and demultiplexing means are provided for coupling optical radiation between the bus and the interferometers. A detection system is provided that includes an output terminal associated with each receiver interferometer. For each receiver interferometer, an output signal is produced at the associated output terminal when the optical radiation coupled into the receiver interferometer includes a component that has passed through a transmitter interferometer having an output path length difference equal to the optical path length difference of the receiver interferometer, to within the coherence length of the associated source.
摘要翻译：一种相干复用光信号传输系统，其中通过调制光载波或源信号而不是通过调制干涉仪臂的光路长度将调制引入系统。该系统包括通过光学总线互连的发射机和接收机。发射机包括多个发射机干涉仪，每个发射机干涉仪包括调制光源。发射机干涉仪具有大于相关源的相干长度的光程长度差，并且彼此相差大于源相干长度的量。接收机包括具有与发射机干涉仪相匹配的路径长度差异的多个接收机干涉仪。提供多路复用和解复用装置用于在总线和干涉仪之间耦合光辐射。提供一种检测系统，其包括与每个接收机干涉仪相关联的输出端子。对于每个接收干涉仪，当耦合到接收机干涉仪中的光辐射包括通过具有等于接收机的光程长度差的输出路径长度差的发射机干涉仪的分量时，在相关联的输出端产生输出信号干涉仪，在相关源的相干长度内。

16. 发明授权

US11909512B1 Methods of injection locking for multiple optical source generation 有权
公开(公告)号：US11909512B1
公开(公告)日：2024-02-20
申请号：US17690760
申请日：2022-03-09
申请人： CABLE TELEVISION LABORATORIES, INC.
发明人： Zhensheng Jia , David Daniel Smith , Junwen Zhang , Luis Alberto Campos , Curtis D. Knittle
IPC分类号： H04B10/50 , H04J14/00 , H01S5/40 , H04B10/80
CPC分类号： H04J14/002 , H01S5/4006 , H04B10/506 , H04B10/5053 , H04B10/80 , H04B10/505
摘要： A coherent optical injection locking (COIL) apparatus generates multiple optical source outputs from a single optical source generated by a parent laser. The COIL apparatus includes a plurality of optical source generators each having a child laser, of lesser performance than the parent laser, that is injection locked to the single optical source. The optical source generators may have one or both of a shared configuration and a cascaded configuration that replicates the single optical source, or a single wavelength of the single optical source when it is a comb source.

17. 发明申请

US20180145865A1 PHASE AMBIGUITY PROCESSING METHOD AND DEVICE FOR QUADRATURE AMPLITUDE MODULATION SIGNAL 审中-公开
公开(公告)号：US20180145865A1
公开(公告)日：2018-05-24
申请号：US15574457
申请日：2016-03-14
申请人： ZTE CORPORATION
发明人： Aimei FEI
IPC分类号： H04L27/34 , H04J14/06 , H04J14/00
CPC分类号： H04L27/3455 , H04B10/50 , H04J14/002 , H04J14/06 , H04L27/34 , H04L27/38 , H04L27/3827 , H04L27/3872
摘要： A phase ambiguity processing method and device are provided. The phase ambiguity processing method includes: deciding symbols on a Y polarization state and an X polarization state of a received signal, and mapping to obtain first bit information, where the received signal includes a plurality of first signals; checking and analyzing the first bit information to generate a first check result; judging the first check result to obtain a judgment result as to whether the received signal has phase ambiguity; acquiring at least one of the plurality of first signals in the received signal when the judgment result indicates that the received signal has phase ambiguity; performing phase rotation on the first signal to obtain a second signal; and checking and analyzing the second signal, storing the second signal so that the first signal is replaced with the second signal for decoding processing if a check result is normal.

18. 发明授权

US09264172B2 Method of optical data transmission using polarization division multiplexing 有权
标题翻译：使用偏振分复用的光数据传输方法
公开(公告)号：US09264172B2
公开(公告)日：2016-02-16
申请号：US14000280
申请日：2012-03-05
申请人： Olivier Rival , Francesco Vacondio
发明人： Olivier Rival , Francesco Vacondio
IPC分类号： H04B10/00 , H04J14/06 , H04B10/532 , H04B10/61 , H04J14/00
CPC分类号： H04J14/06 , H04B10/532 , H04B10/614 , H04J14/002
摘要： Proposed is a method of optical data transmission. The method comprises different steps. A first optical signal and a second optical signal are generated, such that the optical signals possess a same wavelength, respective phases, which are modulated in dependence on respective data values, and respective polarization states, which are essentially orthogonal to each other. A combined optical signal is generated, by combining the optical signals, such that the combined optical signal possesses a polarization state with a predetermined variation. The combined optical signal is transmitter over an optical transmission line and received. Two time-discrete sampled signals are generated, by sampling the received optical signal along two orthogonal polarization planes. Two filtered signals are generated, by filtering the time-discrete sampled signals in the time-discrete domain, using a function that is indicative of the respective predetermined variation. Finally, respective data values are derived from the filtered signals.
摘要翻译：提出了一种光数据传输的方法。该方法包括不同的步骤。产生第一光信号和第二光信号，使得光信号具有相同的波长，根据相应的数据值调制的各个相位以及基本上彼此正交的相应极化状态。通过组合光信号来产生组合的光信号，使得组合光信号具有预定变化的偏振状态。组合的光信号是通过光传输线路发送并接收的。通过沿两个正交极化平面对接收到的光信号进行采样来产生两个时间离散采样信号。通过使用表示相应的预定变化的函数对时间离散域中的时间离散采样信号进行滤波来产生两个滤波信号。最后，从滤波信号导出相应的数据值。

19. 发明授权

US09219548B2 Modulator with marking of polarization 有权
标题翻译：具有极化标记的调制器
公开(公告)号：US09219548B2
公开(公告)日：2015-12-22
申请号：US13496669
申请日：2010-09-15
申请人： Massimiliano Salsi , Jeremie Renaudier
发明人： Massimiliano Salsi , Jeremie Renaudier
IPC分类号： H04B10/00 , H04B10/08 , H04B10/04 , H04B10/06 , H04B10/556 , H04B10/60 , H04J14/00 , H04J14/06 , H04B10/2575
CPC分类号： H04B10/5561 , H04B10/2575 , H04B10/60 , H04B10/6166 , H04B2201/70727 , H04B2210/074 , H04B2210/075 , H04J14/002 , H04J14/06
摘要： A modulator with polarization marking comprising two input ports for receiving two optical signals at one wavelength, and exhibiting essentially perpendicular optical polarization states, capable of phase-modulating those signals with data signals and of combining them with polarization, characterized in that it comprises a source of phase overmodulation for overmodulating the phase of one of said two optical signals, said phase overmodulation exhibiting a modulation frequency substantially lower than the modulation frequency of said data signals. A method and a coherent receiver are also disclosed.
摘要翻译：具有偏振标记的调制器包括两个输入端口，用于在一个波长处接收两个光信号，并呈现出基本上垂直的光学偏振状态，能够用数据信号对这些信号进行相位调制并将其与极化相结合，其特征在于，其包括源相位过调制用于过调制所述两个光信号之一的相位，所述相位过调制表现出显着低于所述数据信号的调制频率的调制频率。还公开了一种方法和相干接收机。

20. 发明授权

US09088371B2 WDM telecommunications link with coherent detection and optical frequency comb sources 有权
标题翻译： WDM电信链路具有相干检测和光频梳状源
公开(公告)号：US09088371B2
公开(公告)日：2015-07-21
申请号：US14114872
申请日：2012-04-27
申请人： Jeremy Witzens
发明人： Jeremy Witzens
IPC分类号： H04B10/61 , H04B10/64 , H04J14/00 , H04J14/02
CPC分类号： H04B10/6164 , H04B10/64 , H04J14/002 , H04J14/02
摘要： An optical data link has a transmitter and a receiver with coherent detection at the receiver and more than one optical carrier frequency. The optical carrier frequencies are generated by a frequency comb source in both the transmitter and the receiver. The frequency comb sources generate frequency combs that have frequency components and a free spectral range. The optical carrier frequencies transport more than one optical channel. Either at least one frequency component or the free spectral range of the optical comb generated at the receiver is locked to the comb generated at the transmitter by an optical phase locked loop, or an electrical phase locked loop or a feed-forward carrier recovery generates an intermediate frequency carrier reference that is routed to more than one channel to demodulate the data.
摘要翻译：光学数据链路具有在接收机处具有相干检测的发射机和接收机以及多于一个的光载波频率。光载波频率由发射机和接收机中的频率梳源产生。频率梳源产生具有频率分量和自由光谱范围的频率梳。光载波频率传输多于一个光通道。在接收机处产生的光梳的至少一个频率分量或自由频谱范围通过光锁相环锁定在发射机处产生的梳，或者电锁相环或前馈载波恢复产生路由到多个信道以解调数据的中频载波参考。

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