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公开(公告)号：US07787121B2
公开(公告)日：2010-08-31
申请号：US12175033
申请日：2008-07-17
IPC分类号： G01N21/25
CPC分类号： G01J3/51 , A61B1/00163 , A61B1/00186 , A61B1/043 , A61B1/063 , A61B1/0638 , A61B1/0669 , G01J3/36 , G01J3/513 , H04N5/2256 , H04N5/33 , H04N9/045 , H04N9/07 , H04N9/09 , H04N2209/043 , H04N2209/044 , H04N2209/045
摘要： An imaging apparatus includes a light source unit that selectively outputs white light and light in a different wavelength band to an observation target, an imaging unit including an imaging device, and a spectral image formation circuit that generates a spectral image signal for a specified wavelength by an operation using an image signal based on an output from the imaging unit and predetermined matrix data. The imaging unit selectively obtains an image of the observation target for each of first, second and third light components in a visible light region and an image for each of at least fourth and fifth light components in a near-infrared region. Further, the imaging unit includes first spectral devices that make only the first and fourth light components enter first pixels of the imaging device and second spectral devices that make only the second and fifth light components enter second pixels thereof.
摘要翻译： 一种成像设备包括：光源单元，其选择性地将白光和不同波长带的光输出到观察对象;成像单元，包括成像装置;以及光谱图像形成电路，其通过以下方式产生特定波长的光谱图像信号 使用基于来自成像单元的输出的图像信号和预定矩阵数据的操作。 成像单元在近红外区域中选择性地获得可见光区域中的第一，第二和第三光分量中的每一个的观察目标图像和用于至少第四和第五光分量中的每一个的图像。 此外，成像单元包括仅使第一和第四光分量进入成像装置的第一像素的第一光谱装置和仅使第二和第五光分量进入其第二像素的第二光谱装置。
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公开(公告)号：US08270780B2
公开(公告)日：2012-09-18
申请号：US12095542
申请日：2006-11-29
CPC分类号： G02F1/3137 , G02F2001/212 , G02F2202/20
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。
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公开(公告)号：US08170422B2
公开(公告)日：2012-05-01
申请号：US11658127
申请日：2005-07-19
申请人： Tetsuya Kawanishi , Masayuki Izutsu
发明人： Tetsuya Kawanishi , Masayuki Izutsu
IPC分类号： H04J14/00
CPC分类号： H04B10/50577 , G02F1/2255 , G02F2001/212 , H04B10/505 , H04B10/5053 , H04B10/50575
摘要： It is an object of the present invention to provide an FSK demodulator which can be used in the optical information and telecommunications and the like, and which can appropriately demodulate an FSK signal by compensating a delay of an optical FSK modulated signal due to dispersion and the like of an optical fiber.The above-mentioned problem is solved by a frequency shift keying (FSK) demodulator (1) composed of a branching filter (2) for branching an optical signal according to wavelengths thereof; a delay adjusting apparatus (3) for adjusting a delay time of two lights branched by the branching filter; a first photodetector (4) for detecting one optical signal branched by the branching filter; a second photodetector (5) for detecting a remaining optical signal branched by the branching filter; and a means (6) for calculating a difference between an output signal of the first photodetector and an output signal of the second photodetector.
摘要翻译： 本发明的目的是提供一种可用于光信息和电信等的FSK解调器，并且可以通过补偿由于色散导致的光FSK调制信号的延迟来适当地解调FSK信号，并且 像光纤一样。 上述问题由用于根据其波长分支光信号的分波器（2）组成的频移键控（FSK）解调器（1）来解决; 延迟调整装置（3），用于调节由分支滤波器分支的两根光的延迟时间; 用于检测由分支滤波器分支的一个光信号的第一光电检测器（4） 第二光电检测器（5），用于检测由分支滤波器分支的剩余光信号; 以及用于计算第一光电检测器的输出信号和第二光电检测器的输出信号之间的差的装置（6）。
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公开(公告)号：US08023775B2
公开(公告)日：2011-09-20
申请号：US12282638
申请日：2006-09-22
CPC分类号： G02F1/2255 , G02F2001/212 , G02F2203/56
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。
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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
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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公开(公告)号：US20100150495A1
公开(公告)日：2010-06-17
申请号：US12095542
申请日：2006-11-29
CPC分类号： G02F1/3137 , G02F2001/212 , G02F2202/20
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。
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公开(公告)号：US20090310900A1
公开(公告)日：2009-12-17
申请号：US12282638
申请日：2006-09-22
CPC分类号： G02F1/2255 , G02F2001/212 , G02F2203/56
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。）
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公开(公告)号：US07555223B2
公开(公告)日：2009-06-30
申请号：US11038767
申请日：2005-01-21
申请人： Tetsuya Kawanishi , Masayuki Izutsu
发明人： Tetsuya Kawanishi , Masayuki Izutsu
CPC分类号： H04B1/7174
摘要： A UWB signal generator includes: a laser light source for generating laser light, an optical intensity modulator for modulating an intensity of laser light from the laser light source, a signal source of the optical intensity modulator for outputting a signal transmitted to the optical intensity modulator, an optical frequency shift keying (optical FSK) modulator to which output light from the optical intensity modulator is input, a signal source for controlling a signal transmitted to an RFC electrode of the optical FSK modulator, a high-frequency electric signal source for controlling a signal transmitted to an RFA electrode and an RFB electrode of the optical FSK modulator, and a high-speed photodetector for detecting an output from the optical FSK modulator.
摘要翻译： UWB信号发生器包括：用于产生激光的激光源，用于调制来自激光光源的激光强度的光强度调制器，用于输出发送到光强度调制器的信号的光强度调制器的信号源 输入来自光强度调制器的输出光的光频移键控（光FSK）调制器，用于控制发送到光FSK调制器的RFC电极的信号的信号源，用于控制光频FSK调制器的高频电信号源 发送到光学FSK调制器的RFA电极和RFB电极的信号，以及用于检测来自光学FSK调制器的输出的高速光电检测器。
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公开(公告)号：US07526209B2
公开(公告)日：2009-04-28
申请号：US10960761
申请日：2004-10-08
申请人： Tetsuya Kawanishi , Masayuki Izutsu
发明人： Tetsuya Kawanishi , Masayuki Izutsu
IPC分类号： H04B10/04
CPC分类号： H04B10/505 , H04B1/7163 , H04B10/5051 , H04B10/5563
摘要： An optical FSK modulator which can be used for an optical information communication is provided. The optical FSK is provided with: a second sub Mach-Zehnder waveguide (MZB) 3; a main Mach-Zehnder waveguide (MZC) 4 including the MZA and MZB and provided with a light input portion and a modulated light output portion; a first direct-current or low-frequency electrode (DCA electrode) 5 controlling a bias voltage between two arms composing the MZA, thereby controlling a phase of light propagating in the two arms of the MZA; a second direct-current or low-frequency electrode (DCB electrode) 6 controlling a bias voltage between two arms composing the MZB, thereby controlling a phase of light propagating in the two arms of the MZB; a first RF electrode (RFA electrode) 7 inputting a radio frequency (RF) signal to the two arms composing the MZA; a second RF electrode (RFB electrode) 8 inputting an RF signal to the two arms composing the MZB; and a traveling-wave-type electrode (RFC electrode) 11 controlling a voltage of the RF signal inputted, thereby controlling a frequency of light outputted from the output portion.
摘要翻译： 提供了可用于光信息通信的光FSK调制器。 光学FSK设有：第二子马赫 - 曾德尔波导（MZB）3; 包括MZA和MZB的主Mach-Zehnder波导（MZC）4，并设置有光输入部分和调制光输出部分; 控制构成MZA的两个臂之间的偏置电压的第一直流或低频电极（DCA电极）5，从而控制在MZA的两个臂中传播的光的相位; 控制构成MZB的两个臂之间的偏置电压的第二直流或低频电极（DCB电极）6，从而控制在MZB的两个臂中传播的光的相位; 向构成MZA的两个臂输入射频（RF）信号的第一RF电极（RFA电极）7; 将RF信号输入到构成MZB的两个臂的第二RF电极（RFB电极）8; 以及控制输入的RF信号的电压的行波型电极（RFC电极）11，从而控制从输出部输出的光的频率。
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公开(公告)号：US20080304827A1
公开(公告)日：2008-12-11
申请号：US11658127
申请日：2005-07-19
申请人： Tetsuya Kawanishi , Masayuki Izutsu
发明人： Tetsuya Kawanishi , Masayuki Izutsu
IPC分类号： H04J14/00
CPC分类号： H04B10/50577 , G02F1/2255 , G02F2001/212 , H04B10/505 , H04B10/5053 , H04B10/50575
摘要： It is an object of the present invention to provide an FSK demodulator which can be used in the optical information and telecommunications and the like, and which can appropriately demodulate an FSK signal by compensating a delay of an optical FSK modulated signal due to dispersion and the like of an optical fiber.The above mentioned problem is solved by a frequency shift keying (FSK) demodulator (1) composed of a branching filyer (2) for branching an optical signal according to wavelengths thereof; a delay adjusting apparutus (3) for adjusting a delay time of two lights branched by the branching filter; a first photodetector (4) for detecting one optical signal branched by the branching filter; a second photodetector (5) for detecting a remaing optical signal branched by the branching filter; and a means (6) for calculating a difference between an output signal of the first photodetector and an output signal of the second photodetector.
摘要翻译： 本发明的目的是提供一种可用于光信息和电信等的FSK解调器，并且可以通过补偿由于色散导致的光FSK调制信号的延迟来适当地解调FSK信号，并且 像光纤一样。 上述问题通过由用于根据其波长分支光信号的分支滤波器（2）组成的频移键控（FSK）解调器（1）来解决; 延迟调节装置（3），用于调节由分支滤波器分支的两根光的延迟时间; 用于检测由分支滤波器分支的一个光信号的第一光电检测器（4） 用于检测由所述分支滤波器分支的再生光信号的第二光电检测器（5）; 以及用于计算第一光电检测器的输出信号和第二光电检测器的输出信号之间的差的装置（6）。
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