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    • 1. 发明授权
    • Polarization demultiplexing optical receiver using polarization oversampling and electronic polarization tracking
    • 使用偏振过采样和电子偏振跟踪的极化解复用光接收机
    • US08014686B2
    • 2011-09-06
    • US12052541
    • 2008-03-20
    • Jeffrey Thomas RahnWei Chen
    • Jeffrey Thomas RahnWei Chen
    • H04B10/06
    • H04B10/697H04B10/677
    • An optical receiver utilizes differential quadrature phase-shift keying (DQPSK) demodulation and electrical crosstalk rejection to relax requirements on filter misalignment with a carrier signal and to enable electronic polarization demultiplexing of optical signals. The optical receiver uses additional polarization state information when performing differential phase measurements on the optical signals. This provides information that ensures that data can be recovered by the optical receiver regardless of the state of polarization introduced during transmission of the optical signals. The optical receiver over samples the optical signals, which enables electrical polarization demultiplexing of the optical signals. The electrical crosstalk rejection provides a tracking algorithm that isolates received optical signals, and reduces crosstalk between data sequences.
    • 光接收机利用差分正交相移键控(DQPSK)解调和电串扰抑制来放宽对载波信号的滤波器未对准的要求,并实现光信号的电子偏振解复用。 当对光信号执行差分相位测量时,光接收机使用额外的偏振状态信息。 这提供了确保数据可以由光接收机恢复的信息,而不管在光信号的传输期间引入的极化状态如何。 光接收机对光信号进行采样,可实现光信号的电偏振解复用。 电串扰抑制提供了一种跟踪算法,其隔离接收到的光信号,并减少数据序列之间的串扰。
    • 2. 发明申请
    • Polarization Demultiplexing Optical Receiver Using Polarization Oversampling and Electronic Polarization Tracking
    • 使用极化过采样和电子极化跟踪的极化解复用光接收机
    • US20090238579A1
    • 2009-09-24
    • US12052541
    • 2008-03-20
    • Jeffrey Thomas RahnWei Chen
    • Jeffrey Thomas RahnWei Chen
    • H04B10/06H04B10/00
    • H04B10/697H04B10/677
    • An optical receiver utilizes differential quadrature phase-shift keying (DQPSK) demodulation and electrical crosstalk rejection to relax requirements on filter misalignment with a carrier signal and to enable electronic polarization demultiplexing of optical signals. The optical receiver uses additional polarization state information when performing differential phase measurements on the optical signals. This provides information that ensures that data can be recovered by the optical receiver regardless of the state of polarization introduced during transmission of the optical signals. The optical receiver over samples the optical signals, which enables electrical polarization demultiplexing of the optical signals. The electrical crosstalk rejection provides a tracking algorithm that isolates received optical signals, and reduces crosstalk between data sequences.
    • 光接收机利用差分正交相移键控(DQPSK)解调和电串扰抑制来放宽对载波信号的滤波器未对准的要求,并实现光信号的电子偏振解复用。 当对光信号执行差分相位测量时,光接收机使用额外的偏振状态信息。 这提供了确保数据可以由光接收机恢复的信息,而不管在光信号的传输期间引入的极化状态如何。 光接收机对光信号进行采样,可实现光信号的电偏振解复用。 电串扰抑制提供了一种跟踪算法,其隔离接收到的光信号,并减少数据序列之间的串扰。