Optical amplitude modulation system capable of cancelling high order component
    71.
    发明授权
    Optical amplitude modulation system capable of cancelling high order component 有权
    能够抵消高阶分量的光调制系统

    公开(公告)号:US07711215B2

    公开(公告)日:2010-05-04

    申请号:US12065278

    申请日:2006-08-30

    IPC分类号: G02F1/035

    摘要: It is an object of the present invention to provide a DSB-SC system capable of suppressing a third order component. The DSB-SC modulation having high extinction ratio can be realized by adjusting the first order component, which is generated by applying a modulation signal (3fm), and the third order component, which is generated by applying a basic signal (fm), to have reversed phase and the same intensity level, and then by applying the first order component to the third order component, these two components cancel each other.

    摘要翻译: 本发明的目的是提供一种能够抑制三阶分量的DSB-SC系统。 具有高消光比的DSB-SC调制可以通过将通过应用调制信号(3fm)产生的一阶分量和通过应用基本信号(fm)产生的三阶分量调整到 具有反相和相同强度水平,然后通过将第一阶分量应用于三阶分量,这两个分量彼此抵消。

    Reciprocating optical modulation system
    72.
    发明授权
    Reciprocating optical modulation system 有权
    往复光调制系统

    公开(公告)号:US07660030B2

    公开(公告)日:2010-02-09

    申请号:US12063436

    申请日:2006-08-09

    IPC分类号: G02B1/01

    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)。

    SUPER HIGH SPEED OPTICAL FREQUENCY SWEEPING TECHNOLOGY
    73.
    发明申请
    SUPER HIGH SPEED OPTICAL FREQUENCY SWEEPING TECHNOLOGY 有权
    超高速光学频率扫描技术

    公开(公告)号:US20090304393A1

    公开(公告)日:2009-12-10

    申请号:US12306117

    申请日:2006-06-23

    IPC分类号: H04B10/04

    CPC分类号: G02F1/2255

    摘要: It is an object to provide an optical frequency control device or the like which can quickly carry out control over a wide frequency range. The object is achieved by an optical frequency control device or the like comprised of an optical SSB modulator (2), a bias voltage source (3) for applying a bias voltage to the optical SSB modulator (2), and a modulating signal source (4) for applying a modulating signal to the optical SSB modulator (2), wherein the modulating signal source (4) is provided with an arbitrary waveform generator (5) for generating an electrical signal with an arbitrary waveform, and an electrical signal multiplier (6) for multiplying a frequency of the electrical signal generated by the arbitrary waveform generator (5).

    摘要翻译: 本发明的目的是提供一种能够在宽频率范围内快速进行控制的光频控制装置等。 该目的通过由光学SSB调制器(2),用于向光学SSB调制器(2)施加偏置电压的偏置电压源(3)和调制信号源(2)的光学频率控制装置等实现, 4)用于向光学SSB调制器(2)施加调制信号,其中调制信号源(4)设有用于产生具有任意波形的电信号的任意波形发生器(5)和电信号乘法器 6),用于乘以由任意波形发生器(5)产生的电信号的频率。

    METHOD AND DEVICE FOR CALIBRATING A LIGHT INTENSITY MEASUREMENT DEVICE
    74.
    发明申请
    METHOD AND DEVICE FOR CALIBRATING A LIGHT INTENSITY MEASUREMENT DEVICE 有权
    用于校准光强度测量装置的方法和装置

    公开(公告)号:US20090290148A1

    公开(公告)日:2009-11-26

    申请号:US12095378

    申请日:2006-11-24

    IPC分类号: G01J1/34

    摘要: It is an object of the present invention to provide a method and a device for automatically calibrating a light intensity measurement device. The device (1) includes an optical switch (3) for switching a route of output from an optical intensity modulator (2), an optical attenuator (5) arranged on a first waveguide (4), a second waveguide (6), a light intensity measurement device (7), a control device (8) for receiving light intensity information measured by the light intensity measurement device (7) and controlling the signal to be applied to the optical intensity modulator (2), and a signal source (9) for receiving a control signal of the control device (8) and adjusting the signal to be applied to the optical intensity modulator (2).

    摘要翻译: 本发明的目的是提供一种用于自动校准光强测量装置的方法和装置。 装置(1)包括用于切换来自光强度调制器(2)的输出路线的光开关(3),布置在第一波导(4)上的光衰减器(5),第二波导(6), 光强测量装置(7),用于接收由光强测量装置(7)测量的光强度信息并控制施加到光强度调制器(2)的信号的控制装置(8),以及信号源 9),用于接收控制装置(8)的控制信号并调整要施加到光强度调制器(2)的信号。

    DSB-SC MODULATION SYSTEM CAPABLE OF ERASING CARRIER AND SECONDARY COMPONENT
    76.
    发明申请
    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:US20090232440A1

    公开(公告)日:2009-09-17

    申请号:US12065218

    申请日:2006-08-30

    IPC分类号: G02F1/035

    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。

    Semiconductor integrated circuit device and high frequency power amplifier module
    79.
    发明申请
    Semiconductor integrated circuit device and high frequency power amplifier module 有权
    半导体集成电路器件和高频功率放大器模块

    公开(公告)号:US20070049237A1

    公开(公告)日:2007-03-01

    申请号:US11511300

    申请日:2006-08-29

    IPC分类号: H04B1/44 H04B1/28

    CPC分类号: H04B1/48

    摘要: Switching characteristics in an SPDT switch are improved to reduce the rise delay in a low power slot following after a high power slot. Control terminals of an SPDT switch are respectively provided with backflow prevention circuits. The backflow prevention circuit is configured to have two transistors and a diode. In a transmission mode, for example, when a time slot where a high power passes through transistors is followed by a time slot where a low power passes through, the electric charges accumulated in the gates of the transistors are blocked. In the case where the transistors are in the OFF state, the electric charges accumulated in the gates of the transistors are immediately discharged to allow the transistors to be completely turned OFF.

    摘要翻译: SPDT开关中的开关特性得到改善,可以降低高功率插槽后的低功率插槽的上升延时。 SPDT开关的控制端子分别设有防回流电路。 防回流电路被配置为具有两个晶体管和二极管。 在传输模式中,例如,当高功率通过晶体管的时隙之后是低功率通过的时隙时,积聚在晶体管的栅极中的电荷被阻断。 在晶体管处于截止状态的情况下,立即放电晶体管的栅极中累积的电荷,使晶体管完全截止。