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    • 8. 发明授权
    • Dispersion measurement system and method in an optical communication network
    • 光通信网络中的色散测量系统和方法
    • US08699875B2
    • 2014-04-15
    • US13810957
    • 2011-07-19
    • Emilio BraviGiuseppe TaliDavid McDonaldMichael ToddDavid Bernard
    • Emilio BraviGiuseppe TaliDavid McDonaldMichael ToddDavid Bernard
    • G01N21/41H04B10/07H04B17/00G01N21/84
    • H04B10/07951G01M11/332G01M11/335G01M11/338H04B10/073
    • The invention relates to a system and method of dispersion measurement in an optical fiber network. The invention provides means for transmitting from a transmitting node, using a single tunable laser transmitter, two consecutive bursts of data at different wavelengths λ1 and λ2 to a receiver node, wherein each burst of data comprises a unique sequence of amplitude modulated data, and wherein the two sequences are injected with a fixed known delay. The delay between the two consecutive bursts of data is maintained by selective switching of the tunable laser, such that clock recovery circuitry at the receiver node remains locked during the delay between the two bursts. The dispersion measurements method of the present invention is based on walk off and bit position detection between two wavelengths suitable for fast optical burst switching network is described. This method does not require an operator, extra equipment, or traffic interruption on the network.
    • 本发明涉及光纤网络中色散测量的系统和方法。 本发明提供了用于使用单个可调谐激光发射器从不同波长λ1和λ2的两个连续的数据突发传送到接收机节点的装置,其中每个数据突发包括幅度调制数据的唯一序列,并且其中 两个序列以固定的已知延迟注入。 通过可调谐激光器的选择性切换来维持两个连续的数据脉冲之间的延迟,使得接收器节点处的时钟恢复电路在两个脉冲串之间的延迟期间保持锁定。 本发明的色散测量方法是基于步行和适用于快速光突发交换网络的两个波长之间的位位置检测进行描述的。 该方法不需要网络上的操作员,额外的设备或流量中断。