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    • 4. 发明申请
    • METHOD AND APPARATUS FOR OPTICAL DATA TRANSMISSION AT HIGH DATA RATES WITH ENHANCED CAPACITY USING POLARIZATION MULTIPLEXING
    • 利用极化复用提高容量以高数据速率进行光数据传输的方法和装置
    • WO02080429A2
    • 2002-10-10
    • PCT/US0205859
    • 2002-02-12
    • TERADVANCE COMMUNICATIONS LLCSCHEMMANN MARCEL F CMARICEVIC ZORAN
    • SCHEMMANN MARCEL F CMARICEVIC ZORAN
    • H04J14/02H04J14/06
    • H04J14/06H04J14/02
    • A system and method for enhancing data capacity in optical data communication are described. First data is modulated onto a first optical carrier to occupy a data frequency range. The first optical carrier includes a first side frequency separated from the frequency range of the data band. A first modulated carrier having a first polarization state is output. Second data is modulated onto a second optical carrier signal occupying the same data frequency range. The second optical carrier includes a second side frequency separated from tha data frequency range of the data band in a direction opposite from the first side frequency. A second modulated carrier having a first polarization state is output. The polarization state of the second modulated carrier is changed to a second polarization state orthogonal to the first polarization state and the first modulated carrier is combined with the second modulated carrier into a combined carrier. The combined carrier is optically transmitted to a receiver, in which the first data having the first polarization state is extracted from the second data having the second polarization state.
    • 描述了用于增强光数据通信中的数据容量的系统和方法。 第一数据被调制到第一光载波上以占据数据频率范围。 第一光载波包括与数据频带的频率范围分开的第一旁侧频率。 输出具有第一偏振态的第一调制载波。 第二数据被调制到占据相同数据频率范围的第二光载波信号上。 第二光载波包括在与第一副频率相反的方向上与数据频带的数据频率范围分开的第二副频率。 输出具有第一偏振态的第二调制载波。 第二调制载波的偏振状态改变为与第一偏振状态正交的第二偏振状态,并且第一调制载波与第二调制载波组合成组合载波。 组合载波被光学地传输到接收器,其中从具有第二偏振态的第二数据中提取具有第一偏振态的第一数据。