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    • 65. 发明申请
    • Optical Subchannels From a Single Lightwave Source
    • 来自单个光波源的光学子信道
    • US20080063396A1
    • 2008-03-13
    • US11690926
    • 2007-03-26
    • Jianjun YuLei XuPhilip Nan JiTing Wang
    • Jianjun YuLei XuPhilip Nan JiTing Wang
    • H04B10/24
    • H04B10/5561H04B10/505H04B10/5051H04B10/5053H04B10/5162H04B10/5165
    • An apparatus includes a generator for obtaining at least two lightwave carriers from a single lightwave source, at least two modulators for selectively varying the lightwave carriers according to respective data signals; and a coupler for combining the modulated lightwave carriers for optical transmission. The generator can be one of an optical carrier suppression or phase modulation. The apparatus can employ a filter for separating the lightwave carriers by a fixed wavelength spacing before selectively varying the lightwave carriers according to the respective data signals. In an exemplary embodiment of the invention, the respective data signals are two 50 Gbit/s differential quadrature phase key DQPSK signals, each 50 Gbit/s DQPSK signal including a first 25 Gbit/s data signal out of phase with a second 25 Gbit/s data signal for selectively varying a respective one of the two lightwave carriers, and the combined modulated lightwave carriers are a 100 Gbit/s DQPSK signal. Preferably, the apparatus includes a modulator for pulse shaping the lightwave carriers.
    • 一种装置包括用于从单个光波源获得至少两个光波载波的发生器,至少两个用于根据相应数据信号选择性地改变光波载波的调制器; 以及用于组合用于光传输的调制光波载波的耦合器。 发生器可以是光载波抑制或相位调制之一。 根据相应的数据信号,在选择性地改变光波载波之前,该装置可以采用用于将光波载波分离固定波长间隔的滤波器。 在本发明的示例性实施例中,相应的数据信号是两个50Gbit / s的差分正交相位键DQPSK信号,每个50Gbit / s的DQPSK信号包括与第二25Gbit / s的第二25Gbit / s数据信号异相, 用于选择性地改变两个光波载波中的相应一个的数据信号,并且组合的调制的光波载波是100Gbit / s的DQPSK信号。 优选地,该装置包括用于对光波载波进行脉冲整形的调制器。
    • 66. 发明申请
    • Optical Re-Modulation in DWDM Radio-Over-Fiber Network
    • DWDM无线光纤网络中的光重新调制
    • US20070292143A1
    • 2007-12-20
    • US11761021
    • 2007-06-11
    • Jianjun YuLei XuTing Wang
    • Jianjun YuLei XuTing Wang
    • H04B10/04
    • H04B10/25754
    • An apparatus includes multiple signal paths for optically converting an optical signal to multiples of the optical signal at different respective carrier frequencies for reducing interference between wireless transmissions of the multiples of the optical signal. Preferably, the converting includes a first modulator for modulating the optical signal into a first optical carrier and an initial first-order sideband signal with a frequency spacing twice that of the first optical carrier and a first interleaver for separating the first optical carrier and the initial first-order sideband signal. The converting also includes a second phase modulator for modulating the first optical carrier into a second optical carrier and a second first-order sideband signal with a frequency spacing twice that of the second optical carrier.
    • 一种装置包括多个信号路径,用于将光信号光学地转换成不同相应载波频率处的光信号的倍数,以减少光信号的倍数的无线传输之间的干扰。 优选地,转换包括用于将光信号调制成第一光载波的第一调制器和具有两倍于第一光载波的频率间隔的初始一阶边带信号和用于分离第一光载波的初始交织器和初始 一阶边带信号。 转换还包括用于将第一光载波调制成第二光载波的第二相位调制器和频率间隔是第二光载波的频率间隔的第二一阶边带信号。