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公开(公告)号：US07236661B2
公开(公告)日：2007-06-26
申请号：US11091765
申请日：2005-03-29
CPC分类号： G02B6/2932 , G02B6/29322 , G02B6/29394 , G02B6/29395 , G02B6/29398 , H04B10/25133
摘要： This invention is a tunable dispersion compensation apparatus that suppresses the effects of the transmission channel dispersion which impedes transmission when optical signals used in high-speed communications are transmitted across long distances among various points. It is an apparatus that performs dispersion compensation upon received optical signals based on information that accompanies the received optical signals, or an apparatus that performs dispersion compensation in advance upon optical signals to be sent based on information related to the destination of the optical signals to be sent, including: an input block and output block for optical signals, with a dispersion element that has wavelength dispersion characteristics and a wavelength shifter that is able to adjust the amount of shift depending on the input optical signal provided in a circulating light path upon the light path from the input block to the output block, and further including a constitution whereby the input optical signal circulates around a circulating light path containing the dispersion element and wavelength shifter a stipulated number of times before reaching the output block, and a constitution whereby the number of times the light circulates is determined based on the information and input to the wavelength shifter.
摘要翻译： 本发明是一种可调谐色散补偿装置，其抑制在高速通信中使用的光信号在各点之间长距离地传输时阻碍传输的传输信道色散的影响。 根据接收到的光信号的信息，对接收到的光信号进行色散补偿的装置，或者根据与光信号的目的地有关的信息，预先对要发送的光信号进行色散补偿的装置 发送，包括：用于光信号的输入块和输出块，具有波长色散特性的色散元件和能够根据在循环光路中提供的输入光信号调整偏移量的波长移位器 从输入块到输出块的光路，还包括输入光信号在到达输出块之前在包含色散元件和波长移位器的循环光路周围循环规定次数的结构， 基于光线循环的次数确定 信息和输入到波长移位器。
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42.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：US08824895B2
公开(公告)日：2014-09-02
申请号：US13001883
申请日：2008-07-03
IPC分类号： H04B10/00 , H01Q21/06 , H04B10/2575
CPC分类号： H01Q21/061 , H01Q21/0006 , H04B10/25756
摘要： An object of the present invention is to provide a radio-on-fiber unit and a radio-on-fiber system which can transmit/receive signals at adequate rates especially, to/from a mobile device. A first aspect of the present invention relates to a radio-on-fiber unit (3) which includes an antenna array (1) and a light modulator array (2). The light modulator array (2) comprises antenna elements (5) and light modulators (7) that are connected with the respective antenna elements via electric circuits. The optical waveguide (13) is composed of linear optical waveguides (13) that are arranged along the light modulators (7) included in certain lines among the light modulators (7). The light modulator array (2) comprises reflection units (17) for connecting two adjacent linear optical waveguides with each other. Consequently, a signal light inputted to a light input unit (11) is outputted from a light output unit (15) via each linear optical waveguide (13).
摘要翻译： 本发明的一个目的是提供一种无线光纤单元和光纤无线电系统，其可以以适当的速率发送/接收来自移动设备的信号。 本发明的第一方面涉及一种包括天线阵列（1）和光调制器阵列（2）的光纤上单元（3）。 光调制器阵列（2）包括经由电路与各个天线元件连接的天线元件（5）和光调制器（7）。 光波导（13）由沿光调制器（7）中的某些线路中包括的光调制器（7）布置的线性光波导（13）组成。 光调制器阵列（2）包括用于将两个相邻的线性光波导彼此连接的反射单元（17）。 因此，输入到光输入单元（11）的信号光经由每个线性光波导（13）从光输出单元（15）输出。
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公开(公告)号：US20110103800A1
公开(公告)日：2011-05-05
申请号：US13001883
申请日：2008-07-03
CPC分类号： H01Q21/061 , H01Q21/0006 , H04B10/25756
摘要： An object of the present invention is to provide a radio-on-fiber unit and a radio-on-fiber system which can transmit/receive signals at adequate rates especially, to/from a mobile device. A first aspect of the present invention relates to a radio-on-fiber unit (3) which includes an antenna array (1) and a light modulator array (2). The light modulator array (2) comprises antenna elements (5) and light modulators (7) that are connected with the respective antenna elements via electric circuits. The optical waveguide (13) is composed of linear optical waveguides (13) that are arranged along the light modulators (7) included in certain lines among the light modulators (7). The light modulator array (2) comprises reflection units (17) for connecting two adjacent linear optical waveguides with each other. Consequently, a signal light inputted to a light input unit (11) is outputted from a light output unit (15) via each linear optical waveguide (13).
摘要翻译： 本发明的一个目的是提供一种无线光纤单元和光纤无线电系统，其可以以适当的速率发送/接收来自移动设备的信号。 本发明的第一方面涉及一种包括天线阵列（1）和光调制器阵列（2）的光纤上单元（3）。 光调制器阵列（2）包括经由电路与各个天线元件连接的天线元件（5）和光调制器（7）。 光波导（13）由沿光调制器（7）中的某些线路中包括的光调制器（7）布置的线性光波导（13）组成。 光调制器阵列（2）包括用于将两个相邻的线性光波导彼此连接的反射单元（17）。 因此，输入到光输入单元（11）的信号光经由每个线性光波导（13）从光输出单元（15）输出。
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公开(公告)号：US07421209B2
公开(公告)日：2008-09-02
申请号：US11056395
申请日：2005-02-14
申请人： Tetsuya Kawanishi , Masayuki Izutsu
发明人： Tetsuya Kawanishi , Masayuki Izutsu
IPC分类号： H04B10/04
CPC分类号： H04L27/10 , H04B10/505 , H04B10/5051 , H04B10/5053 , H04B10/5563
摘要： An optical wavelength multiplexing frequency shift keying modulation system. The system includes an optical wavelength multiplexing signal acquisition unit for outputting an optical wavelength multiplexing signal. A n optical frequency shift keying modulation unit acquires an optical frequency shift keying signal, including an upper side band signal and a lower side band signal, by performing frequency modulation to the optical wavelength multiplexing signal output from the optical wavelength multiplexing signal acquisition unit. An optical frequency shift keying signal separation unit separates the optical frequency shift keying signal output from the optical frequency shift keying modulation unit into an upper side band signal and a lower side band signal.
摘要翻译： 一种光波长复用频移键控调制方式。 该系统包括用于输出光波长复用信号的光波长复用信号获取单元。 通过对从光波长多路复用信号获取单元输出的光波长复用信号进行频率调制，n个光频移键控调制单元获取包括上边带信号和下边带信号的光频移键控信号。 光频移键控信号分离单元将从光频移键控调制单元输出的光频移键控信号分离为上边带信号和下边带信号。
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公开(公告)号：US20070255107A1
公开(公告)日：2007-11-01
申请号：US11797054
申请日：2007-04-30
申请人： Tetsuya Kawanishi
发明人： Tetsuya Kawanishi
IPC分类号： A61B1/12
CPC分类号： A61B1/00068 , A61B1/00091 , A61B1/126 , A61B1/3132
摘要： An endoscope system is provided and includes: a plurality of guide tubes that is pierced into a subject coelom swelled by supplying a pressurized gas; an endoscope inserted into one of the plurality of guide tubes; a treatment piece inserted into at least the other one of the plurality of guide tubes; an injection nozzle that intermittently inject a cleaning gas to an observation window at a front end of an inserting portion of the endoscope so as to flow along a surface of the observation window, the cleaning gas being the same as the pressurized gas; and a cleaning gas supply controller capable of setting an injection pressure and an injection time period of the cleaning gas under a condition that an injection amount of the cleaning gas becomes equal to or smaller than a leakage amount of the pressurized gas leaked from inside of the coelom.
摘要翻译： 提供一种内窥镜系统，包括：通过供给加压气体而被刺入被检体内的多个导管; 插入所述多个导管中的一个的内窥镜; 插入所述多个导管中的至少另一个的处理片; 将所述清洁气体间歇地喷射到所述内窥镜的插入部的前端的观察窗，沿着所述观察窗的表面流动，所述清洁气体与所述加压气体相同; 以及清洁气体供给控制器，其能够在清洁气体的喷射量变为等于或小于从内部泄漏的加压气体的泄漏量的条件下设定清洗气体的喷射压力和喷射时间段 coelom。
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公开(公告)号：US07133190B2
公开(公告)日：2006-11-07
申请号：US10856987
申请日：2004-06-01
申请人： Tetsuya Kawanishi
发明人： Tetsuya Kawanishi
IPC分类号： G02F2/02
CPC分类号： H04B10/50 , G02F1/353 , G02F2/02 , G02F2001/3542 , G02F2203/56
摘要： An optical frequency converter that can use a low-amplitude, high-frequency signal for converting a wide range of optical frequencies. The optical frequency converter includes a device for modulating a lightwave of a preset frequency with a modulation signal to generate a group of sidebands thereof, a device for selecting sidebands from among the group of sidebands, and a device for changing modulation signal frequencies and selecting specific sidebands.
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公开(公告)号：US07106497B2
公开(公告)日：2006-09-12
申请号：US10627782
申请日：2003-07-28
申请人： Tetsuya Kawanishi , Masayuki Izutsu
发明人： Tetsuya Kawanishi , Masayuki Izutsu
IPC分类号： G02F2/02
CPC分类号： G02F2/02
摘要： A low-noise optical frequency converter uses a predetermined microwave electric signal to modulate an input light wave and output a light wave that includes a first-order upper-sideband or lower-sideband and a third-order lower-sideband or upper-sideband. The frequency converter modulates a light wave identical to the input light wave with a signal having a frequency that is three times that of the microwave signal, to form a first light wave having a first-order lower-sideband or upper-sideband. The first light wave is mixed with a second light wave having a first-order upper-sideband or lower-sideband and a third-order lower-sideband or upper-sideband, with a phase of the third-order lower-sideband or upper-sideband reversed to a phase of the first light wave, thereby suppressing third-order sidebands.
摘要翻译： 低噪声光频变换器使用预定的微波电信号来调制输入光波并输出包括一阶上边带或下边带和三阶下边带或上边带的光波。 变频器利用具有三倍于微波信号的频率的信号来调制与输入光波相同的光波，以形成具有一级下边带或上边带的第一光波。 第一光波与具有一阶上边带或下边带和三阶下边带或上边带的第二光波混合，具有三阶下边带或上边带的相位， 边带反转到第一光波的相位，从而抑制三阶边带。
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49.发明授权公开(公告)号：US07084649B2
公开(公告)日：2006-08-01
申请号：US10721408
申请日：2003-11-26
IPC分类号： G01R31/308 , G01R31/28
CPC分类号： G01R31/311
摘要： A method and apparatus are provided that make it possible to speedily measure, and obtain images of, the three-dimensional distribution of electric fields in integrated circuits, using electro-optic sampling. The sampling is performed using a plurality of electric field sensors, each comprising an electro-optic crystal layer, a light-reflecting layer that is in close contact with the electro-optic crystal layer, and a separation layer that is in close contact with the reflection layer, separating the reflection layer from the object to be measured.
摘要翻译： 提供了一种方法和装置，其可以使用电光采样来快速测量和获得集成电路中的电场的三维分布的图像。 使用多个电场传感器进行采样，每个电场传感器包括电光晶体层，与电光晶层紧密接触的光反射层和与该电光晶体层紧密接触的分离层 反射层，将反射层与被测量物体分开。
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公开(公告)号：US20050238366A1
公开(公告)日：2005-10-27
申请号：US11103494
申请日：2005-04-12
申请人： Tetsuya Kawanishi , Masayuki Izutsu
发明人： Tetsuya Kawanishi , Masayuki Izutsu
CPC分类号： H04B10/505 , H04B10/506
摘要： An apparatus is provided for using modulation signals to optically modulate lightwaves of multiple frequencies, using a single optical modulator. A multiple-wavelength optical modulation apparatus in which with respect to a natural number n that is not higher than a number N of modulation signals that is not lower than a number of input lightwaves, fn is input light component of channel n, Fn is modulation frequency, An is a lower sideband order and Bn is an upper sideband order corresponding to sideband channels generated by modulation, the apparatus comprises: an input filter, an optical modulator and an output filter on a single optical path; A lightwave input through an input filter is reflected between the input filter and an output filter, being modulated during each round trip, and is output via the output or input filter when the light has reached a frequency determined by the output or input filter. The time required for each light component of channel n to make a round trip is an integer multiple of one period of each modulation signal having a frequency Fn (=1/Fn). A light component travelling in one direction is reverse phase modulated when the round-trip time is an odd multiple of one period (=1/Fn), and a light component travelling in both directions is in phase modulated when the time required for the light component to travel both ways is an even multiple of one period (=1/Fn).
摘要翻译： 提供一种使用单个光学调制器来使用调制信号来光学地调制多个频率的光波的装置。 一种多波长光调制装置，其中对于不高于输入光波数的调制信号的数目N的自然数n，fn是通道n的输入光分量，Fn是调制 A为低边带顺序，Bn为对应于通过调制生成的边带通道的上边带次序，该装置包括：单个光路上的输入滤波器，光调制器和输出滤波器; 通过输入滤波器输入的光波被反映在输入滤波器和输出滤波器之间，在每次往返期间被调制，并且当光已经达到由输出或输入滤波器确定的频率时通过输出滤波器输出。 通道n的每个光分量进行往返所需的时间是具有频率Fn（= 1 / F N n N）的每个调制信号的一个周期的整数倍。 当往返时间是一个周期（= 1 / F
N）的奇数倍时，在一个方向上行进的光分量被反相调制，并且在两个方向上行进的光分量是同相的 当光分量行进两方面所需的时间是一个周期（= 1 / F）的偶数倍时被调制。
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