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13 条记录 (耗时 0.023 秒)

    Optical switches, modulators and transmitters
    4.
    发明授权
    Optical switches, modulators and transmitters 失效
    光开关，调制器和发射器

    公开(公告)号：US5970185A

    公开(公告)日：1999-10-19

    申请号：US961970

    申请日：1997-10-31

    申请人： Nigel Baker ,  Ross Alexander Saunders

    发明人： Nigel Baker ,  Ross Alexander Saunders

    IPC分类号： G02F1/225 ,  G02F1/313 ,  G02F1/35 ,  H04B10/155 ,  G02F1/035 ,  H04B10/04

    CPC分类号： H04B10/505 ,  G02F1/225 ,  G02F1/3136 ,  G02F1/3517

    摘要： An optical interferometer incorporating a signal strength modulated optical phase delay, such as a Kerr effect element in one of its arms is employed to improve the cross-talk isolation/extinction ratio of an optical switch, amplitude modulator, or amplitude modulated optical transmitter. The Kerr element is constructed so that its intensity dependent optical path length is such as to provide destructive interference at the interferometer output when the light input to the interferometer is low, and constructive interference when the input is high. The place of the Kerr effect element can alternatively be taken by an electro-optic modulator driven with an electrical version of the data modulation appearing on the optical signal.

    摘要翻译： 采用包含信号强度调制光相位延迟的光学干涉仪，例如其臂之一中的克尔效应元件，以改善光开关，幅度调制器或幅度调制光发射机的串扰隔离/消光比。 克尔元件被构造成使得其强度相关的光程长度在输入到干涉仪的光线较低时在干涉仪输出处提供相消干涉，并且当输入为高时具有相当大的干扰。 克尔效应元件的位置可以替代地由通过在光信号上出现的数据调制的电气版本驱动的电光调制器来实现。

    Apparatus for time division/wave division conversion
    5.
    发明授权
    Apparatus for time division/wave division conversion 有权
    用于时分/波分转换的装置

    公开(公告)号：US06388781B1

    公开(公告)日：2002-05-14

    申请号：US09199479

    申请日：1998-11-25

    申请人： Ross Alexander Saunders

    发明人： Ross Alexander Saunders

    IPC分类号： H04J1400

    CPC分类号： H04J14/0223

    摘要： A multiplexer demultiplexer for conversion of optical data between a serial bit stream having a bit rate in excess of that of conventional photodetection devices and multiple bit streams at a bit rate that may be serviced using conventional photodetection devices. A wavelength conversion element uses four-wave mixing to produce from a single high rate data stream multiple intermodulation products that together represent the input serial data stream in wavelength division multiplexed (WDM) form. A related device multiplexes multiple WDM data streams provided at conventional bit rates to a serial bit stream having a bit rate in excess of that of conventional photodetection devices.

    摘要翻译： 一种多路复用器解复用器，用于在比特率超过常规光检测装置的串行比特流和可以使用常规光电检测装置服务的比特率的多个比特流之间转换光数据。 波长转换元件使用四波混频从单个高速率数据流产生多个互调产物，它们一起表示波分复用（WDM）形式的输入串行数据流。 相关设备将以常规比特率提供的多个WDM数据流复用到具有超过常规光检测设备的比特率的串行比特流。

    Integrated optical time domain reflectometer and optical supervisory network
    6.
    发明授权
    Integrated optical time domain reflectometer and optical supervisory network 有权
    集成光时域反射计和光监控网络

    公开(公告)号：US07088436B2

    公开(公告)日：2006-08-08

    申请号：US09943077

    申请日：2001-08-30

    申请人： Ross Alexander Saunders ,  Enos Avid Lemus-Tejada ,  Sanjay Kalyanasundaram ,  Meng Soo

    发明人： Ross Alexander Saunders ,  Enos Avid Lemus-Tejada ,  Sanjay Kalyanasundaram ,  Meng Soo

    IPC分类号： G01N21/00

    CPC分类号： H04B10/071

    摘要： An integrated OTDR/OSC mechanism for monitoring an optical transport system without disrupting the normal service. The invention combines two essential network components in an integrated mechanism. These components are the mandatory OSC function as part of any DWDM network, and the in-skin, in-service attributes of the OTDR engine. One pair of control wavelengtbs is sufficient to perform both OSC and OTDR functionalities. In this way, distributed control function, OTDR procedures, and fiber monitoring is achieved, while trace acquisition from anywhere in the network becomes possible. By bringing these two essential network components together, the invention allows for superior network management and reduction in maintenance costs. This is primarily due to the fact that the invention allows to use and control the OTDR engine remotely, while the combination with the OSC function allows rapid implementation of the OTDR procedures on operating channels within each fiber of a cable.

    摘要翻译： 一种集成的OTDR / OSC机制，用于监控光传输系统，而不会中断正常业务。 本发明结合了集成机制中的两个基本网络组件。 这些组件是作为任何DWDM网络的一部分的强制OSC功能，以及OTDR引擎的皮肤内服务属性。 一对控制波长足以执行OSC和OTDR功能。 通过这种方式，实现了分布式控制功能，OTDR程序和光纤监控，同时可以从网络中的任意位置进行跟踪采集。 通过将这两个基本网络组件结合在一起，本发明允许优异的网络管理和降低维护成本。 这主要是由于本发明允许远程使用和控制OTDR引擎，而与OSC功能的组合允许在电缆的每个光纤内的操作信道上快速实现OTDR过程。

    Method and apparatus for transmitting an internet protocol (IP) packet within a fiber optic network
    7.
    发明授权
    Method and apparatus for transmitting an internet protocol (IP) packet within a fiber optic network 有权
    用于在光纤网络内发送因特网协议（IP）分组的方法和装置

    公开(公告)号：US06317236B1

    公开(公告)日：2001-11-13

    申请号：US09161424

    申请日：1998-09-24

    申请人： Ross Alexander Saunders

    发明人： Ross Alexander Saunders

    IPC分类号： H04B1000

    CPC分类号： H04L29/06 ,  H04L69/16 ,  H04L69/168 ,  H04L69/323 ,  H04L69/324 ,  H04L2007/045 ,  H04Q11/0001

    摘要： An embodiment includes an optical source, an optical receiver, and an interconnecting optical fiber. A data sequence is received and encoded or formatted as an IP packet using an encoding format capable of returning a signal representing the IP packet to a predetermined value at the beginning of each bit period of the IP packet at a physical layer of the network. The encoded IP packet is then transmitted directly over an optical layer of the network without adapting the IP packet to another encoding format or using an adaptation layer in the network (e.g., at a data link layer or higher). The optical receiver receives the IP packet and then a clock signal is extracted without the overhead and costs associated with additional adaptation or encoding of the IP packet. When the optical source is in an idle state, a mark-hold state (more generally called a filler signal) is formatted with the same encoding format and transmitted to the optical receiver directly over the optical layer in order to maintain a synchronous clock during the idle state.

    摘要翻译： 实施例包括光源，光接收器和互连光纤。 在网络的物理层处，在IP分组的每个比特周期的开始处，使用能够将表示IP分组的信号返回到预定值的编码格式，接收数据序列并将其编码或格式化为IP分组。 然后，经编码的IP分组直接在网络的光学层上传输，而不会将IP分组适配到另一编码格式，或者使用网络中的适配层（例如，在数据链路层或更高层）。 光接收机接收IP分组，然后提取时钟信号，而不需要与IP分组的附加适配或编码相关联的开销和成本。 当光源处于空闲状态时，标记保持状态（通常称为填充信号）被格式化为具有相同的编码格式，并且通过光层直接传输到光接收机，以便在光源期间保持同步时钟 空闲状态。

    Method and apparatus for monitoring dispersive-wave energy to indicate and optimize soliton transmission performance
    8.
    发明授权
    Method and apparatus for monitoring dispersive-wave energy to indicate and optimize soliton transmission performance 有权
    用于监测分散波能量的方法和装置，以指示和优化孤子传输性能

    公开(公告)号：US06259542B1

    公开(公告)日：2001-07-10

    申请号：US09132014

    申请日：1998-08-10

    申请人： Ross Alexander Saunders

    发明人： Ross Alexander Saunders

    IPC分类号： H04B1008

    CPC分类号： H04B10/07 ,  H04B10/25077

    摘要： An embodiment includes a gating device, a feedback device and a control device. Soliton pulses are received by the gating device, which detects and monitors a dispersive-wave between adjacent soliton pulses using a timing circuit. The timing circuit typically provides a gating signal offset in phase from the soliton pulses in order to trigger the gating device. Triggering the gating device allows the dispersive-wave to be accessed and monitored between adjacent soliton pulses. The feedback device, typically using detectors and processing circuitry, measures the energy of the soliton pulses and the energy of dispersive wave. The feedback determines a ratio of the energy levels as an indication of soliton-pulse transmission performance. The indication is provided to the control device as a feedback signal so that the control device can appropriately adjust characteristics of the soliton pulses and improve or optimize transmission performance.

    摘要翻译： 一个实施例包括门控装置，反馈装置和控制装置。 分离脉冲由门控装置接收，其使用定时电路检测和监视相邻孤子脉冲之间的色散波。 定时电路通常提供与孤子脉冲相位的门控信号偏移，以便触发门控装置。 触发门控器件允许在相邻孤子脉冲之间访问和监视色散波。 通常使用检测器和处理电路的反馈装置测量孤子脉冲的能量和分散波的能量。 反馈决定了能级的比值作为孤子脉冲传输性能的指标。 将该指示作为反馈信号提供给控制装置，使得控制装置可以适当地调整孤子脉冲的特性并改善或优化传输性能。

    Half rate precoded data RZ transmitter
    9.
    发明授权
    Half rate precoded data RZ transmitter 失效
    半速率预编码数据RZ发射机

    公开(公告)号：US07280767B1

    公开(公告)日：2007-10-09

    申请号：US10927227

    申请日：2004-08-26

    申请人： Keangpo Ricky Ho ,  Ross Alexander Saunders

    发明人： Keangpo Ricky Ho ,  Ross Alexander Saunders

    IPC分类号： H04B10/04

    CPC分类号： H04B10/5055 ,  H04B10/505 ,  H04B10/5167

    摘要： An optical duobinary transmitter. The transmitter uses a half-rate precoder, half-rate non-linear modulation drive circuits and a multiplex modulator for generating duobinary modulation on an optical signal from which full-rate data can be detected without decoding. The intensity of the optical signal is modulated to be zero between data symbols.

    摘要翻译： 光双向变送器。 发射机使用半速率预编码器，半速率非线性调制驱动电路和多路复用调制器，用于在可解码全速率数据的光信号上产生双二进制调制。 光信号的强度在数据符号之间调制为零。

    Method of adaptive signal degradation compensation
    10.
    发明授权
    Method of adaptive signal degradation compensation 有权

    公开(公告)号：US07099597B2

    公开(公告)日：2006-08-29

    申请号：US09927680

    申请日：2001-08-10

    申请人： Ross Alexander Saunders ,  Rajkumar Nagarajan ,  Hanan Anis ,  Andrew Robinson ,  Sacha Corbeil

    发明人： Ross Alexander Saunders ,  Rajkumar Nagarajan ,  Hanan Anis ,  Andrew Robinson ,  Sacha Corbeil

    IPC分类号： H04B10/04

    CPC分类号： H04B10/25137

    摘要： An iterative process is used to set the phase prechirp of a WDM optical transport system to a system's optimal level that maximizes the signal quality. A signal degradation factor takes into account linear and non-linear effects along the optical path and is used as a receive end feedback signal to control the phase prechirp level at the transmitter site. By using the FEC corrected errors rate as the feedback signal, optimization of signal quality is performed even when the system is running error free. By using an adaptive phase prechirp transmitter, signal degradation compensation can be also performed on a per wavelength basis to compensate for the residual dispersion slope and to allow optimization of individual channels independently of the net link dispersion value.This method provides more flexibility when using optical switching in core networks, as it allows path optimization to new physical link connectivity, without requiring any change to the optical components such that, significant signal degradation tuning range for a WDM optical transport system is provided.