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    • 1. 发明授权
    • Optical reception method and optical receiver using maximal-ratio-combining method
    • 光接收方法和使用最大比组合方法的光接收机
    • US09154232B2
    • 2015-10-06
    • US14112653
    • 2011-12-09
    • Kazuomi EndoYoichi Hashimoto
    • Kazuomi EndoYoichi Hashimoto
    • H04B10/06H04B10/61
    • H04B10/6165H04B10/614
    • In order to allow reception in which receive sensitivity does not depend upon polarization state in reception of a multi-level phase optical signal, in this optical reception method, a multi-level phase optical signal of a single polarization is separated into a first optical signal and a second optical signal of which polarizations are mutually orthogonal, the ratio of the power of the first optical signal to the power of the second signal is calculated, and the difference between the phase of the first optical signal and the phase of second optical signal is calculated as an amount of compensation, whereupon, on the basis of the ratio and the amount of compensation, the first optical signal and the second optical signal are combined using a maximal ratio combining method, and the amount of compensation is modified on the basis of the ratio.
    • 为了允许接收灵敏度不接收多级相位光信号的接收中的偏振状态的接收,在该光接收方法中,单极化的多电平相位光信号被分离为第一光信号 以及偏振相互正交的第二光信号,计算第一光信号的功率与第二信号的功率的比率,并且计算第一光信号的相位与第二光信号的相位之差 被计算为补偿量,因此,基于比率和补偿量,使用最大比组合方法组合第一光信号和第二光信号,并且基于该补偿量修改补偿量 的比例。
    • 2. 发明申请
    • OPTICAL RECEPTION METHOD AND OPTICAL RECEIVER
    • 光接收方式和光接收机
    • US20140044440A1
    • 2014-02-13
    • US14112653
    • 2011-12-09
    • Kazuomi EndoYoichi Hashimoto
    • Kazuomi EndoYoichi Hashimoto
    • H04B10/61
    • H04B10/6165H04B10/614
    • In order to allow reception in which receive sensitivity does not depend upon polarization state in reception of a multi-level phase optical signal, in this optical reception method, a multi-level phase optical signal of a single polarization is separated into a first optical signal and a second optical signal of which polarizations are mutually orthogonal, the ratio of the power of the first optical signal to the power of the second signal is calculated, and the difference between the phase of the first optical signal and the phase of second optical signal is calculated as an amount of compensation, whereupon, on the basis of the ratio and the amount of compensation, the first optical signal and the second optical signal are combined using a maximal ratio combining method, and the amount of compensation is modified on the basis of the ratio.
    • 为了允许接收灵敏度不接收多级相位光信号的接收中的偏振状态的接收,在该光接收方法中,单极化的多电平相位光信号被分离为第一光信号 以及偏振相互正交的第二光信号,计算第一光信号的功率与第二信号的功率的比率,并且计算第一光信号的相位与第二光信号的相位之差 被计算为补偿量,因此,基于比率和补偿量,使用最大比组合方法组合第一光信号和第二光信号,并且基于该补偿量修改补偿量 的比例。
    • 3. 发明授权
    • Optical communication system, optical communication method, optical communication device, and method and program for controlling the same
    • 光通信系统,光通信方式,光通信装置及其控制方法和程序
    • US09240858B2
    • 2016-01-19
    • US13988444
    • 2011-11-22
    • Kazuomi EndoYoichi Hashimoto
    • Kazuomi EndoYoichi Hashimoto
    • H04B10/00H04J14/06H04B10/556H04B10/61
    • H04J14/06H04B10/5561H04B10/6166
    • In order to perform the polarization demultiplexing of the polarization multiplexed BPSK signal using a small-scale circuit by means of optical phase modulation of the polarization multiplexed BPSK signal into the pseudo polarization multiplexed QPSK signal, an optical communication system for communicating by using polarization multiplexed optical signals includes an optical phase modulation means for modulating phases of a plurality of optical signals employing BPSK modulation system including information to be communicated, and for generating a plurality of optical signals to become signals by pseudo QPSK modulation system; and a signal restoration means for performing polarization demultiplexing of a plurality of polarization multiplexed optical signals from a plurality of optical signals modulated into the pseudo QPSK modulation system, and for restoring the information to be communicated.
    • 为了通过偏振多路复用的BPSK信号的光相位调制使用小尺度电路将偏振复用的BPSK信号的偏振解复用进入伪偏振复用的QPSK信号,通过使用偏振复用光信号进行通信的光通信系统 信号包括光相位调制装置,用于使用包括要传送的信息的BPSK调制系统来调制多个光信号的相位,并且用于通过伪QPSK调制系统产生多个光信号成为信号; 以及信号恢复装置,用于从被调制到伪QPSK调制系统的多个光信号中进行多个偏振复用光信号的偏振解复用,并用于恢复要传送的信息。
    • 4. 发明申请
    • OPTICAL COMMUNICATION SYSTEM, OPTICAL COMMUNICATION METHOD, OPTICAL COMMUNICATION DEVICE, AND METHOD AND PROGRAM FOR CONTROLLING THE SAME
    • 光通信系统,光通信方法,光通信装置及其控制方法和方案
    • US20130243434A1
    • 2013-09-19
    • US13988444
    • 2011-11-22
    • Kazuomi EndoYoichi Hashimoto
    • Kazuomi EndoYoichi Hashimoto
    • H04J14/06
    • H04J14/06H04B10/5561H04B10/6166
    • In order to perform the polarization demultiplexing of the polarization multiplexed BPSK signal using a small-scale circuit by means of optical phase modulation of the polarization multiplexed BPSK signal into the pseudo polarization multiplexed QPSK signal, an optical communication system for communicating by using polarization multiplexed optical signals includes an optical phase modulation means for modulating phases of a plurality of optical signals employing BPSK modulation system including information to be communicated, and for generating a plurality of optical signals to become signals by pseudo QPSK modulation system; and a signal restoration means for performing polarization demultiplexing of a plurality of polarization multiplexed optical signals from a plurality of optical signals modulated into the pseudo QPSK modulation system, and for restoring the information to be communicated.
    • 为了通过偏振多路复用的BPSK信号的光相位调制使用小尺度电路将偏振复用的BPSK信号的偏振解复用进入伪偏振复用的QPSK信号,通过使用偏振复用光信号进行通信的光通信系统 信号包括光相位调制装置,用于使用包括要传送的信息的BPSK调制系统来调制多个光信号的相位,并且用于通过伪QPSK调制系统产生多个光信号成为信号; 以及信号恢复装置,用于从被调制到伪QPSK调制系统的多个光信号中进行多个偏振复用光信号的偏振解复用,并用于恢复要传送的信息。