OPTICAL SIGNAL TO NOISE MONITOR
    1.
    发明申请
    OPTICAL SIGNAL TO NOISE MONITOR 失效
    光信号到噪声监测

    公开(公告)号:US20100178052A1

    公开(公告)日:2010-07-15

    申请号:US12664196

    申请日:2008-06-13

    CPC classification number: H04B10/071

    Abstract: An optical noise monitoring method and monitor, the monitor comprising an optical transmitter for receiving at least a portion of an optical signal, a device arranged to extract a reflected optical signal comprising a portion of the optical signal back-reflected by stimulated Brillouin scattering in the optical transmitter, and a photodetector for receiving the reflected optical signal. The optical transmitter can scatter the optical signal by stimulated Brillouin scattering.

    Abstract translation: 一种光学噪声监测方法和监测器,所述监测器包括用于接收光信号的至少一部分的光发射器,被配置为提取反射光信号的装置,所述装置包括通过受激布里渊散射反向反射的光信号的一部分 光发射机和用于接收反射光信号的光电检测器。 光发射机可以通过受激布里渊散射散射光信号。

    Fiber apparatus and method for manipulating optical signals
    2.
    发明授权
    Fiber apparatus and method for manipulating optical signals 有权
    用于操纵光信号的光纤装置和方法

    公开(公告)号:US06608952B2

    公开(公告)日:2003-08-19

    申请号:US09929989

    申请日:2001-08-15

    Abstract: Embodiments of the invention include an optical fiber device such as a modulator, variable attenuator or tunable filter including an optical fiber having a core region, a cladding layer around the core region, and a controllable active material disposed in, e.g., capillaries or rings formed the cladding layer. The active materials include, e.g., electro-optic material, magneto-optic material, photorefractive material, thermo-optic material and/or materials such as laser dyes that provide tunable gain or loss. The application of, e.g., temperature, light or an electric or magnetic field varies optical properties of the active material, which, in turn, varies or affects the propagation properties of optical signals in the device. The optical device includes a tapered region that causes the core mode to spread into the cladding region and, simultaneously, allows the active material to be relatively close to the propagated modes, thus allowing interaction between the active material and the propagating modes.

    Abstract translation: 本发明的实施例包括诸如调制器,可变衰减器或可调谐滤波器的光纤器件,其包括具有芯区域的光纤,围绕芯区域的包层,以及设置在例如形成的毛细管或环的可控活性材料 包层。 活性材料包括例如电光材料,磁光材料,光折射材料,热光材料和/或诸如提供可调谐增益或损耗的激光染料的材料。 例如温度,光或电场或磁场的应用改变了活性材料的光学性质,其又改变或影响装置中光信号的传播特性。 光学器件包括使芯模扩展到包层区域并同时允许活性材料相对接近传播模式的锥形区域,从而允许活性材料与传播模式之间的相互作用。

    Optical communication system incorporating automatic dispersion compensation modules
    4.
    发明授权
    Optical communication system incorporating automatic dispersion compensation modules 有权
    包含自动色散补偿模块的光通信系统

    公开(公告)号:US06370300B1

    公开(公告)日:2002-04-09

    申请号:US09252708

    申请日:1999-02-18

    CPC classification number: H04B10/2519 H04B2210/252

    Abstract: In accordance with the invention, an optical communication system is provided with one or more automatic dispersion compensation modules. Each module has an adjustable dispersion element, a data integrity monitor and a feedback network whereby the monitor adjusts the dispersion element to optimize system performance. In a preferred embodiment the dispersion compensating modules comprise chirped fiber Bragg gratings in which the chirp is induced in the grating by passing a current along distributed thin film heaters deposited along the length of the fiber. The magnitude of the applied current determines the dispersion of the grating. A data integrity monitor is configured to sense the integrity of transmitted data and to provide electrical feedback for controlling the current applied to the grating.

    Abstract translation: 根据本发明,光通信系统设置有一个或多个自动色散补偿模块。 每个模块都具有可调色散元件,数据完整性监视器和反馈网络,由此监视器调整色散元件以优化系统性能。 在优选实施例中,色散补偿模块包括啁啾光纤布拉格光栅,其中通过沿沿着光纤长度沉积的分布式薄膜加热器传递电流而在光栅中感应啁啾。 施加电流的大小决定了光栅的色散。 数据完整性监视器被配置为感测传输数据的完整性,并提供用于控制施加到光栅的电流的电反馈。

    Optical fiber communication system incorporating automatic dispersion compensation modules to compensate for temperature induced variations
    7.
    发明授权
    Optical fiber communication system incorporating automatic dispersion compensation modules to compensate for temperature induced variations 有权
    包含自动色散补偿模块的光纤通信系统,以补偿温度变化

    公开(公告)号:US06307988B1

    公开(公告)日:2001-10-23

    申请号:US09362151

    申请日:1999-07-28

    CPC classification number: H04B10/2519 H04B2210/252

    Abstract: A high speed optical communication system (≧10 Gbit/s) is compensated for temperature variation by providing it with one or more automatic dispersion compensation modules. Each module has an adjustable dispersion element, a data integrity monitor and a feedback network whereby the monitor adjusts the dispersion element to compensate for temperature variation. In a preferred embodiment the dispersion compensating modules comprise chirped fiber Bragg gratings in which the chirp is induced in the grating by passing a current along distributed thin film heaters deposited along the length of the fiber. The magnitude of the applied current determines the dispersion of the grating. A data integrity monitor is configured to sense the integrity of transmitted data and to provide electrical feedback for controlling the current applied to the grating.

    Abstract translation: 高速光通信系统(> = 10 Gbit / s)通过提供一个或多个自动色散补偿模块来补偿温度变化。 每个模块具有可调色散元件,数据完整性监视器和反馈网络,由此监视器调节色散元件以补偿温度变化。 在优选实施例中,色散补偿模块包括啁啾光纤布拉格光栅,其中通过沿沿着光纤长度沉积的分布式薄膜加热器传递电流而在光栅中感应啁啾。 施加电流的大小决定了光栅的色散。 数据完整性监视器被配置为感测传输数据的完整性,并提供用于控制施加到光栅的电流的电反馈。

    Optical grating devices with adjustable chirp
    8.
    发明授权
    Optical grating devices with adjustable chirp 有权
    具有可调啁啾的光栅设备

    公开(公告)号:US06275629B1

    公开(公告)日:2001-08-14

    申请号:US09183048

    申请日:1998-10-30

    Abstract: In accordance with the invention, an optical waveguide grating with adjustable chirp comprises a waveguide grating in thermal contact with an electrically controllable heat-transducing body which varies the temperature along the length of the grating. The heat-transducing body can generate heat on the fiber or remove heat from the fiber to establish a temperature gradient along the grating. In an exemplary embodiment, the heat-transducing body is a resistive film coating whose local resistance varies along the length of the grating. Electrical current passed through the film generates a temperature gradient along the grating approximately proportional to the local resistance of the film, and the amount of chirp can be adjusted by the current. The resulting devices are simple, compact and power efficient.

    Abstract translation: 根据本发明,具有可调啁啾线的光波导光栅包括与电可控热传导体热接触的波导光栅,其沿着光栅的长度改变温度。 热传导体可以在纤维上产生热量或从纤维去除热量以沿着光栅建立温度梯度。 在一个示例性实施例中,热传导体是其局部电阻沿光栅的长度变化的电阻膜涂层。 通过膜的电流沿着光栅产生大约与膜的局部电阻成比例的温度梯度,并且可以通过电流调节啁啾的量。 所得到的器件简单,紧凑,功率高。

Patent Agency Ranking