QUADRATURE AMPLITUDE MODULATION SIGNAL GENERATING DEVICE
    1.
    发明申请
    QUADRATURE AMPLITUDE MODULATION SIGNAL GENERATING DEVICE 有权
    三角振幅调制信号发生装置

    公开(公告)号:US20100202785A1

    公开(公告)日:2010-08-12

    申请号:US12678491

    申请日:2008-01-31

    IPC分类号: H04L27/18 H04B10/12

    摘要: A quadrature amplitude modulation (QAM) signal generator, which can obtain optical signals such as QAM signals without handling multilevel electrical signals, can be produced by using a plurality of parallel Mach-Zehnder modulators (MZMs), such as quadruplex parallel MZMs (QPMZM). The quadrature amplitude modulation (QAM) signal generator includes a first waveguide, a first quadrature phase-shift-keying (QPSK) signal generator provided on the first waveguide, a second waveguide connected with the first waveguide at a wave-combining point, and a second quadrature phase-shift-keying (QPSK) signal generator provided on the second waveguide.

    摘要翻译: 可以通过使用多个并联马赫 - 曾德调制器(MZM)(诸如四重并联MZM(QPMZM))来产生可以获得诸如QAM信号的光信号而不处理多电平电信号的正交幅度调制(QAM)信号发生器, 。 正交幅度调制(QAM)信号发生器包括第一波导,设置在第一波导上的第一正交相移键控(QPSK)信号发生器,在波合并点处与第一波导连接的第二波导,以及 设置在第二波导上的第二正交相移键控(QPSK)信号发生器。

    Quadrature amplitude modulation signal generating device
    2.
    发明授权
    Quadrature amplitude modulation signal generating device 有权
    正交幅度调制信号发生装置

    公开(公告)号:US08676060B2

    公开(公告)日:2014-03-18

    申请号:US12678491

    申请日:2008-01-31

    IPC分类号: H04B10/00

    摘要: A quadrature amplitude modulation (QAM) signal generator, which can obtain optical signals such as QAM signals without handling multilevel electrical signals, can be produced by using a plurality of parallel Mach-Zehnder modulators (MZMs), such as quadruplex parallel MZMs (QPMZM). The quadrature amplitude modulation (QAM) signal generator includes a first waveguide, a first quadrature phase-shift-keying (QPSK) signal generator provided on the first waveguide, a second waveguide connected with the first waveguide at a wave-combining point, and a second quadrature phase-shift-keying (QPSK) signal generator provided on the second waveguide.

    摘要翻译: 可以通过使用多个并联马赫 - 曾德调制器(MZM)(诸如四重并联MZM(QPMZM))来产生可以获得诸如QAM信号的光信号而不处理多电平电信号的正交幅度调制(QAM)信号发生器, 。 正交幅度调制(QAM)信号发生器包括第一波导,设置在第一波导上的第一正交相移键控(QPSK)信号发生器,在波合并点处与第一波导连接的第二波导,以及 设置在第二波导上的第二正交相移键控(QPSK)信号发生器。

    Optical switch system using optical interference
    3.
    发明授权
    Optical switch system using optical interference 有权
    光开关系统采用光纤干涉

    公开(公告)号:US08270780B2

    公开(公告)日:2012-09-18

    申请号:US12095542

    申请日:2006-11-29

    摘要: It is an object of the present invention to provide an optical switch system using optical interference. An optical switch system (1) comprises an input part (2) of an optical signal, a branching part (3) of the signal, a main Mach-Zehnder waveguide (MZC) (7), a first intensity modulator (9) provided on a first arm (4) for controlling an amplitude of an optical signal propagating through the first arm (4), a second intensity modulator (10) provided on a second arm (5) for controlling an amplitude of an optical signal propagating through the second arm (5), and a combining part (6) of the signals outputted from the first arm and the second arm, wherein one or both of the branching part (3) and the combining part (6) are X-branched.

    摘要翻译: 本发明的目的是提供一种使用光学干涉的光开关系统。 光开关系统(1)包括光信号的输入部分(2),信号的分支部分(3),主马赫 - 曾德波导(MZC)(7),第一强度调制器(9) 在用于控制通过所述第一臂(4)传播的光信号的幅度的第一臂(4)上,设置在第二臂(5)上的第二强度调制器(10),用于控制通过所述第一臂 以及从第一臂和第二臂输出的信号的组合部分(6),其中分支部分(3)和组合部分(6)中的一个或两个是X分支的。

    Super flat optical frequency comb signal generator
    4.
    发明授权
    Super flat optical frequency comb signal generator 有权
    超平光梳频信号发生器

    公开(公告)号:US08023775B2

    公开(公告)日:2011-09-20

    申请号:US12282638

    申请日:2006-09-22

    IPC分类号: G02F1/225 G02F1/01

    摘要: An optical frequency COM generator generating an optical frequency COM having flat spectrum characteristics using a single modulator. The optical frequency COM generator has a drive signal system (11) and a bias signal system (14) which drive a first drive signal (9), a second drive signal (10) and bias signals (12, 13) to satisfy the following expression (I). ΔA+Δθ=π/2 (I). (where, ΔA and Δθ are defined as ΔA≡(A1−A2)/2 and Δθ≡(θ1−θ2)/2, respectively, A1 and A2 represent the amplitudes of the first and second drive signals when they are inputted to the electrodes of the first and second drive signals, respectively, and θ1 and θ2 represent the phases of bias voltages applied to first and second waveguides, respectively.)

    摘要翻译: 使用单个调制器产生具有平坦频谱特性的光频率COM的光学频率COM发生器。 光频COM发生器具有驱动信号系统(11)和驱动第一驱动信号(9),第二驱动信号(10)和偏置信号(12,13)的偏置信号系统(14)以满足以下 表达式(I)。 &Dgr; A +&Dgr;&thetas; =&pgr; / 2(I)。 (其中,&Dgr; A和&Dgr;&thetas;分别定义为&Dgr;A≡(A1-A2)/ 2和&Dgr;&thetas;≡(&thetas; 1-&thetas; 2)/ 2,A1和A2分别表示 第一和第二驱动信号分别在第一和第二驱动信号的电极输入时的振幅和第一和第二驱动信号的电平分别与第一和第二波导的偏置电压的相位相对应。

    DSB-SC modulation system capable of erasing carrier and secondary component
    5.
    发明授权
    DSB-SC modulation system capable of erasing carrier and secondary component 有权
    DSB-SC调制系统能够擦除载波和二次分量

    公开(公告)号:US07991298B2

    公开(公告)日:2011-08-02

    申请号:US12065218

    申请日:2006-08-30

    IPC分类号: H04B10/04

    摘要: It is an object of the present invention to provide an optical modulation system capable of suppressing a carrier component (f0) and a high order component (such as a second order component (f0±2fm)). The optical modulation system includes Mach-Zehnder waveguide (8), a first intensity modulator (9) provided on a first arm (4), a second intensity modulator (10) provided on a second arm (5), a first main Mach-Zehnder electrode (MZCA electrode) (13a), and a second main Mach-Zehnder electrode (MZCB electrode) (13b). Non-desired components propagating the respective arms are made to have reverse phase before optical signals are combined, whereby the optical modulation system is capable of suppressing the non-desired components when the optical signals are combined.

    摘要翻译: 本发明的目的是提供一种能够抑制载波分量(f0)和高阶分量(诸如二阶分量(f0±2fm))的光调制系统。 光调制系统包括马赫曾德尔波导(8),设置在第一臂(4)上的第一强度调制器(9),设置在第二臂(5)上的第二强度调制器(10) Zehnder电极(MZCA电极)(13a)和第二主Mach-Zehnder电极(MZCB电极)(13b)。 在组合光信号之前使传播各个臂的不期望的分量具有相反相位,由此当光信号被组合时,光调制系统能够抑制非期望的分量。

    OPTICAL SWITCH SYSTEM USING OPTICAL INTERFERENCE
    6.
    发明申请
    OPTICAL SWITCH SYSTEM USING OPTICAL INTERFERENCE 有权
    使用光学干涉的光学开关系统

    公开(公告)号:US20100150495A1

    公开(公告)日:2010-06-17

    申请号:US12095542

    申请日:2006-11-29

    IPC分类号: G02F1/035 G02B6/26

    摘要: It is an object of the present invention to provide an optical switch system using optical interference. An optical switch system (1) comprises an input part (2) of an optical signal, a branching part (3) of the signal, a main Mach-Zehnder waveguide (MZC) (7), a first intensity modulator (9) provided on a first arm (4) for controlling an amplitude of an optical signal propagating through the first arm (4), a second intensity modulator (10) provided on a second arm (5) for controlling an amplitude of an optical signal propagating through the second arm (5), and a combining part (6) of the signals outputted from the first arm and the second arm, wherein one or both of the branching part (3) and the combining part (6) are X-branched.

    摘要翻译: 本发明的目的是提供一种使用光学干涉的光开关系统。 光开关系统(1)包括光信号的输入部分(2),信号的分支部分(3),主马赫 - 曾德波导(MZC)(7),第一强度调制器(9) 在用于控制通过所述第一臂(4)传播的光信号的幅度的第一臂(4)上,设置在第二臂(5)上的第二强度调制器(10),用于控制通过所述第一臂 以及从第一臂和第二臂输出的信号的组合部分(6),其中分支部分(3)和组合部分(6)中的一个或两个是X分支的。

    SUPER FLAT OPTICAL FREQUENCY COM SIGNAL GENERATOR
    7.
    发明申请
    SUPER FLAT OPTICAL FREQUENCY COM SIGNAL GENERATOR 有权
    超平面光通信信号发生器

    公开(公告)号:US20090310900A1

    公开(公告)日:2009-12-17

    申请号:US12282638

    申请日:2006-09-22

    IPC分类号: G02F1/225 G02F1/01

    摘要: An optical frequency COM generator generating an optical frequency COM having flat spectrum characteristics using a single modulator. The optical frequency COM generator has a drive signal system (11) and a bias signal system (14) which drive a first drive signal (9), a second drive signal (10) and bias signals (12, 13) to satisfy the following expression (I). ΔA+Δθ=π/2 (I). (where, ΔA and Δθ are defined as ΔA≡(A1−A2)/2 and Δθ≡(θ1−θ2)/2, respectively, A1 and A2 represent the amplitudes of the first and second drive signals when they are inputted to the electrodes of the first and second drive signals, respectively, and θ1 and θ2represent the phases of bias voltages applied to first and second waveguides, respectively.)

    摘要翻译: 使用单个调制器产生具有平坦频谱特性的光频率COM的光学频率COM发生器。 光频COM发生器具有驱动信号系统(11)和驱动第一驱动信号(9),第二驱动信号(10)和偏置信号(12,13)的偏置信号系统(14)以满足以下 表达式(I)。 DeltaA + Deltatheta = pi / 2(I)。 (其中,DeltaA和Deltatheta分别被定义为DeltaA≡(A1-A2)/ 2和Deltatheta≡(θ1-θ2)/ 2,A1和A2表示当第一和第二驱动信号输入到 第一和第二驱动信号的电极分别为θ1和theta2分别表示施加到第一和第二波导的偏置电压的相位。)

    RECIPROCATING OPTICAL MODULATION SYSTEM
    9.
    发明申请
    RECIPROCATING OPTICAL MODULATION SYSTEM 有权
    复制光学调制系统

    公开(公告)号:US20090103163A1

    公开(公告)日:2009-04-23

    申请号:US12063436

    申请日:2006-08-09

    IPC分类号: G02F1/01

    摘要: In order to provide a reciprocating optical modulation system capable of obtaining a broad bandwidth, a reciprocating optical modulation system (1) of the present invention is basically provided with an optical modulator (2) modulating an output light by controlling one of an intensity, a phase and a frequency of an input light; a first fiber grating (3) transmitting a light of a predetermined frequency domain among lights inputted to and outputted from the optical modulator while reflecting lights of other frequencies; a second fiber grating (4) transmitting a light of a predetermined frequency domain among lights inputted to and outputted from the optical modulator while reflecting lights of other frequencies; and a signal source (5) generating a modulating signal to be inputted to the optical modulator (2).

    摘要翻译: 为了提供能够获得宽带宽的往复式光调制系统,本发明的往复式光调制系统(1)基本上设置有光调制器(2),通过控制强度, 输入光的相位和频率; 第一光纤光栅(3),其在反射其他频率的光的同时,在从所述光调制器输入和输出的光之间传输预定频域的光; 第二光纤光栅(4),其在反射其他频率的光的同时,在从所述光调制器输入和输出的光之间传输预定频域的光; 以及产生要输入到光调制器(2)的调制信号的信号源(5)。

    Automatic adjusting system of frequency shift keying modulator
    10.
    发明授权
    Automatic adjusting system of frequency shift keying modulator 有权
    频移键控调制器自动调节系统

    公开(公告)号:US07936996B2

    公开(公告)日:2011-05-03

    申请号:US12064631

    申请日:2006-08-23

    IPC分类号: H04B10/04

    摘要: An optical modulator achieving high extinction ratio and an optical modulator system. By a control system performing an adjustment method comprising predetermined steps by applying a bias voltage daringly to a modulation electrode for switching the USB signal and LSB signal of an established optical SSB modulator or optical FSK modulator, a means for adjusting bias voltage applied to each bias electrode preferably automatically is provided and a bias point where the extinction ratio of an optical modulator is maximized can be obtained.

    摘要翻译: 实现高消光比的光调制器和光调制器系统。 通过控制系统执行包括预定步骤的调整方法,该偏置电压大大地施加到调制电极,用于切换建立的光学SSB调制器或光FSK调制器的USB信号和LSB信号,用于调整施加到每个偏置的偏置电压的装置 优选自动提供电极,并且可以获得光调制器的消光比最大化的偏置点。