Method and system for reducing degradation of optical signal to noise ratio
    1.
    发明授权
    Method and system for reducing degradation of optical signal to noise ratio 有权
    降低光信噪比的方法和系统

    公开(公告)号:US06810214B2

    公开(公告)日:2004-10-26

    申请号:US09811067

    申请日:2001-03-16

    IPC分类号: H04B1000

    CPC分类号: H04B10/2941 H04B10/2537

    摘要: In one aspect of the invention, a system operable to reduce degradation of an optical signal to noise ratio where signals having multiple wavelengths are communicated over a common optical link includes an amplifier assembly operable to introduce to a lower communication band a first gain and to introduce to a higher communication band a second gain that is different from the first gain. In addition, the system is operable to introduce a variable gain tilt into at least one of the communication bands. The different gains introduced to the higher and lower bands and the variable gain tilt introduced into at least one of the bands result in a reduction of a degradation of optical signal to noise ratio that could otherwise be caused by wavelength dependent attenuation when the communication bands are combined and communicated over an optical link.

    摘要翻译: 在本发明的一个方面,一种可操作以减少光信噪比的劣化的系统,其中具有多个波长的信号通过公共光链路进行通信,该放大器组件可操作以向较低通信频带引入第一增益并引入 向较高通信频带提供不同于第一增益的第二增益。 此外,该系统可操作地将可变增益倾斜引入到至少一个通信频带中。 引入到较高和较低频带的不同增益和引入至少一个频带中的可变增益倾斜导致光信噪比的降低,否则当通信频带为 通过光链路组合和传送。

    Reducing leading edge transients using co-propagating pumps
    2.
    发明授权
    Reducing leading edge transients using co-propagating pumps 有权
    使用共同传播泵减少前缘瞬变

    公开(公告)号:US06825973B1

    公开(公告)日:2004-11-30

    申请号:US10100617

    申请日:2002-03-15

    IPC分类号: H01S300

    CPC分类号: H04B10/291 H04B10/2525

    摘要: An optical amplifier includes at least one amplification stage having a saturation recovery time of less than one (1) millisecond. The amplification stage includes a gain medium operable to receive at least one pump signal and to receive from a multiple span communication link an optical signal comprising a leading edge. The at least one pump signal and the optical signal travel in the same direction at approximately the same speed through at least a portion of the gain medium. In one particular embodiment the leading edge of the optical signal after passing through a plurality of amplifiers when received by a receiver coupled to the communication link comprises a peak power that is no more than ten times the average power of the optical signal at the receiver.

    摘要翻译: 光放大器包括至少一个具有小于一(1)毫秒的饱和恢复时间的放大级。 放大级包括增益介质,其可操作以接收至少一个泵浦信号并且从多跨距通信链路接收包括前沿的光信号。 至少一个泵浦信号和光信号通过至少一部分增益介质以大致相同的速度在相同的方向上行进。 在一个特定实施例中,当由耦合到通信链路的接收器接收到之后,在通过多个放大器之后,光信号的前沿包括不超过接收机处的光信号的平均功率的10倍的峰值功率。

    Method and apparatus for optical element management
    3.
    发明授权
    Method and apparatus for optical element management 有权
    光学元件管理方法和装置

    公开(公告)号:US06751371B1

    公开(公告)日:2004-06-15

    申请号:US10007086

    申请日:2001-12-06

    IPC分类号: G02B628

    CPC分类号: H04B10/0795 H04B10/0793

    摘要: In one aspect of the invention, a method of managing one or more optical elements includes storing in a memory, provisioning information describing at least one setting of an optical element and monitored information describing at least one operational characteristic of the optical element. At least a portion of the monitored information is correlated with at least a portion of the provisioning information. The method further includes maintaining in the memory, a correlation history comprising the provisioning information stored over time and the monitored information correlated to that provisioning information.

    摘要翻译: 在本发明的一个方面,一种管理一个或多个光学元件的方法包括在存储器中存储描述光学元件的至少一个设置的供应信息和描述光学元件的至少一个操作特性的被监视的信息。 所监视的信息的至少一部分与供应信息的至少一部分相关。 该方法还包括在存储器中维护包括随时间存储的供应信息的相关历史以及与该供应信息相关联的所监视的信息。