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公开(公告)号：US06970655B2
公开(公告)日：2005-11-29
申请号：US10084968
申请日：2002-03-01
申请人： Takashi Ono , Shinichi Shimotsu , Masayuki Izutsu
发明人： Takashi Ono , Shinichi Shimotsu , Masayuki Izutsu
IPC分类号： G02F1/035 , H04B10/00 , H04B10/516 , H04B10/61 , H04B10/04
CPC分类号： H04B10/50572 , H04B10/505
摘要： The present invention relates to a method for generating a single-sideband optical signal. According to the method, as data signals having a 90-degree phase difference with respect to input data signals, which are NRZ signals at 10 Gb/s, 0.5-bit delay data signals are generated by a 0.5-bit delay circuit for obtaining a delay corresponding to π/2 of the bit period of the input data signal. An SSB optical signal produced from the data signals and the 0.5-bit delay data signals is generated through an optical filter. Further, to eliminate a residual intensity-modulated component, the generated SSB optical signal is fed back to appropriately adjust the center frequency of the optical filter. The carrier output frequency of a semiconductor laser can be adjusted instead of the center frequency of the optical filter. When an RZ signal is used as an input data signal, a 0.25-bit delay circuit is used.
摘要翻译： 本发明涉及一种用于产生单边带光信号的方法。 根据该方法，作为相对于作为10Gb / s的NRZ信号的输入数据信号具有90度相位差的数据信号，0.5位延迟数据信号由0.5位延迟电路产生，以获得 对应于输入数据信号的位周期的pi / 2的延迟。 通过光滤波器产生从数据信号和0.5位延迟数据信号产生的SSB光信号。 此外，为了消除残留强度调制分量，反馈生成的SSB光信号以适当地调整滤光器的中心频率。 可以调整半导体激光器的载波输出频率而不是滤光器的中心频率。 当使用RZ信号作为输入数据信号时，使用0.25位延迟电路。
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22.发明授权公开(公告)号：US06791733B2
公开(公告)日：2004-09-14
申请号：US10092628
申请日：2002-03-08
IPC分类号： G02F103
CPC分类号： G02F1/2255
摘要： A resonance type optical modulator includes an optical path having electro-optical effect characteristics, a modulation electrode formed along the optical path for applying an electric field to the optical path, a common electrode formed in opposition to the modulation electrode, a feeding line that is connected to the modulation electrode and stubs connected to the feeding line, wherein the feeding line, stubs and common electrode are provided on one side of a region that is divided by the modulation electrode. A specific example is a resonance type optical modulator using a symmetric or an asymmetric electrode, that includes an optical path having electro-optical effect characteristics, a first stub (an open stub) (an open-ended asymmetric coplanar waveguide) or a short stub (a short-ended asymmetric coplanar waveguide), a second stub (an open or short stub) connected to the first stub, a feeding line connected to the first and second stubs and a common electrode, wherein the first and second stubs are formed along a single optical path to comprise a modulation electrode for applying an electric field to the optical path. As a result, the modulator has a configuration easy to fabricate without damaging the effective modulation field strength applied to the optical path, making it possible to realize high modulation efficiency with a low level of electric power.
摘要翻译： 共振型光调制器包括具有电光效应特性的光路，沿着用于向光路施加电场的光路形成的调制电极，与调制电极相对形成的公共电极， 连接到调制电极和连接到馈电线的短截线，其中馈电线，短截线和公共电极设置在由调制电极分割的区域的一侧上。 一个具体实例是使用对称或不对称电极的共振型光学调制器，其包括具有电光效应特性的光路，第一短截线（开口短截线）（开口端不对称共面波导）或短截线 （短端不对称共面波导），连接到第一短截线的第二短截线（开口或短截线），连接到第一和第二短截线的馈电线和公共电极，其中第一和第二短截线沿着 包括用于向光路施加电场的调制电极的单个光路。 结果，调制器具有易于制造而不损害施加到光路的有效调制场强的构造，使得可以以低电平实现高调制效率。
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公开(公告)号：US07864330B2
公开(公告)日：2011-01-04
申请号：US12095378
申请日：2006-11-24
IPC分类号： G01B9/02
CPC分类号： G01J1/08 , G01J1/0204 , G01J1/04 , G01J1/0418 , G01J1/0425 , G01J1/26
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。
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24.发明授权公开(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
CPC分类号： G02F1/0327 , G02F1/2255 , G02F2001/212
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。
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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
CPC分类号： G02F1/0311 , G02F2/02 , G02F2201/17 , G02F2201/307
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）。
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26.发明申请公开(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
CPC分类号： G01J1/08 , G01J1/0204 , G01J1/04 , G01J1/0418 , G01J1/0425 , G01J1/26
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。
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公开(公告)号：US20090279825A1
公开(公告)日：2009-11-12
申请号：US12064597
申请日：2006-08-23
CPC分类号： H04B10/5165 , G02F1/225 , H04B10/505 , H04B10/5563
摘要： It is an object of the present invention to provide an optical modulator which is capable of adjusting optical intensity of optical signals which contains non-desired components so that the intensity of the components become at a similar level, whereby the optical modulator is capable of effectively 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光调制器，其能够调节包含非期望分量的光信号的光强度，使得各部件的强度变成相似的水平，由此光调制器能够有效地 当光信号被组合时，抑制不期望的分量。
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28.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
CPC分类号： H04B10/5051 , H04B10/505 , H04B10/5053 , H04B10/5165
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。
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29.发明申请Modulation Light Signal Generating Device and Fsk Modulation Signal Generating Device 有权调制光信号发生装置和Fsk调制信号发生装置公开(公告)号：US20080159754A1
公开(公告)日：2008-07-03
申请号：US11571281
申请日：2005-06-29
IPC分类号： H04B10/04
CPC分类号： H03D9/00 , H04B10/505 , H04B10/5563
摘要： The object of the present invention is to provide a modulated optical signal generator utilizing the mechanism of a multiply optical modulator, and a modulated signal generator capable of outputting millimeter waves and the like utilizing the modulated optical signal generator.The above-mentioned object is solved by a modulated optical signal generator (1) provided with an optical modulator (2), a first optical filter (3), and a second optical filter (4), wherein a frequency of a multiplying optical modulation outputted from the second optical filter (4) is controlled by controlling the frequency of the modulating signal inputted to the optical modulator (2).
摘要翻译： 本发明的目的是提供一种利用多光调制器机构的调制光信号发生器，以及利用调制光信号发生器输出毫米波等的调制信号发生器。 上述目的通过具有光调制器（2），第一滤光器（3）和第二滤光器（4）的调制光信号发生器（1）来解决，其中乘法光调制 通过控制输入到光调制器（2）的调制信号的频率来控制从第二滤光器（4）输出的输出。
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30.发明授权Bias adjustment method for optical SSB modulator or optical FSK modulator 有权光学SSB调制器或光学FSK调制器的偏置调整方法公开(公告)号：US07245787B2
公开(公告)日：2007-07-17
申请号：US11078695
申请日：2005-03-14
申请人： Tetsuya Kawanishi , Masayuki Izutsu
发明人： Tetsuya Kawanishi , Masayuki Izutsu
CPC分类号： H04B10/50575 , G02F1/0123 , G02F1/225 , H04B10/505 , H04B10/5053 , H04B10/50572 , H04B10/50577
摘要： A method of appropriately adjusting a bias signal of an optical modulator is provided. For an optical modulator provided with a first sub Mach-Zehnder waveguide, a second sub Mach-Zehnder waveguide and a main Mach-Zehnder waveguide, a predetermined signal is supplied to the main Mach-Zehnder waveguide, and bias signals supplied to the first and second Mach-Zehnder waveguides are adjusted so as to lower an amplitude of an output light of the main Mach-Zehnder waveguide.
摘要翻译： 提供一种适当调整光调制器的偏置信号的方法。 对于具有第一子马赫 - 曾德尔波导，第二次马赫 - 曾德尔波导和主马赫 - 策德尔波导的光学调制器，向主马赫 - 策德尔波导提供预定信号，并将偏置信号提供给第一和 调整第二马赫 - 策德尔波导，以降低主马赫 - 策德尔波导的输出光的振幅。
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