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1. 发明授权

US07936996B2 Automatic adjusting system of frequency shift keying modulator 有权
标题翻译：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
申请人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
发明人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
IPC分类号： H04B10/04
CPC分类号： G02F1/225 , G02F2201/16 , G02F2203/20 , H04B10/505 , H04B10/5165 , H04B10/5563
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。

2. 发明申请

US20110097029A1 Super Flat Optical Frequency Comb Signal Generator 审中-公开
标题翻译：超平面光频梳状信号发生器
公开(公告)号：US20110097029A1
公开(公告)日：2011-04-28
申请号：US12864507
申请日：2009-01-27
申请人： Takahide Sakamoto , Tetsuya Kawanishi , Masahiro Tsuchiya , Masayuki Izutsu
发明人： Takahide Sakamoto , Tetsuya Kawanishi , Masahiro Tsuchiya , Masayuki Izutsu
IPC分类号： G02F1/01 , G02F1/225
CPC分类号： G02F1/225 , G02F2001/212 , G02F2203/20 , G02F2203/56
摘要： It is an object of the present invention to provide an optical frequency comb generator to generate an optical frequency comb with flat spectral properties using a single modulator. The optical frequency comb generator comprises: a drive signal system (11) and a bias signal system (14) for driving a first drive signal (9), a second drive signals (10), and bias signals (12,13) in accordance with the following Formula (I): ΔA±Δθ=π/2 (I) (where ΔA and Δθ are defined, respectively, as ΔA=(A1−A2)/2 and Δθ=(θ1−θ2)/2, A1 and A2 indicate, respectively, optical phase shift amplitudes guided by the first drive signal and the second drive signal when input into the electrodes, and θ1 and θ2 indicate, respectively, the phases of the bias signals applied to the first waveguide and the second waveguide).
摘要翻译：本发明的目的是提供一种光频梳发生器，以使用单个调制器产生具有平坦光谱特性的光频梳。光频梳发生器包括：用于驱动第一驱动信号（9）的驱动信号系统（11）和偏置信号系统（14），第二驱动信号（10）和偏置信号（12,13）用以下公式（I）表示：＆Dgr; A±（D-A）（A）（A）（A） 2和＆Dgr;＆Thetas; =（＆thetas; 1-＆thetas; 2）/ 2，A1和A2分别表示当输入到电极时由第一驱动信号和第二驱动信号引导的光学相移幅度和＆ 1和＆amp; Thetas; 2分别表示施加到第一波导和第二波导的偏置信号的相位）。

3. 发明授权

US07853153B2 Fourth harmonic generating system using optical double side-band suppressed carrier modulator 有权
标题翻译：使用光学双边带抑制载波调制器的四次谐波发生系统
公开(公告)号：US07853153B2
公开(公告)日：2010-12-14
申请号：US12063231
申请日：2006-08-08
申请人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
发明人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
IPC分类号： H04B10/04 , H04B10/00
CPC分类号： H04L27/04 , G02F1/2255 , H04B10/506 , H04B2210/006
摘要： The present invention is to provide an optical modulating system for generating a signal of a frequency (f0+2fm) and a signal of a frequency (f0−2fm) and suppressing a signal of a frequency (f0) by a DSB-SC modulator.A fourth harmonic generating system for solving the above problem comprises a first DSB-SC modulator (2) a second DSB-SC modulator (3) and a signal control section (5) for controlling a modulating signal from a signal source (4) for generating modulating signals applied to the first and second DSB-SC modulators (2,3) so that a lower side-band signal (f0) generated by modulating the upper side-band signal of the DSB-SC modulator (2) by the DSB-SC modulator (3) and an upper side-band signal (f0) generated by modulating the lower side-band signal of the DSB-SC modulator (2) by the DSB-SC modulator (3) cancel each other.
摘要翻译：本发明提供一种用于产生频率（f0 + 2fm）的信号和频率（f0-2fm）的信号并且通过DSB-SC调制器抑制频率（f0）的信号的光调制系统。用于解决上述问题的第四谐波发生系统包括第一DSB-SC调制器（2），第二DSB-SC调制器（3）和信号控制部分（5），用于控制来自信号源（4）的调制信号产生施加到第一和第二DSB-SC调制器（2,3）的调制信号，使得通过DSB调制DSB-SC调制器（2）的上边带信号产生的下边带信号（f0） -SC调制器（3）和通过DSB-SC调制器（3）调制DSB-SC调制器（2）的下边带信号而产生的上边带信号（f0）相互抵消。

4. 发明申请

US20090238510A1 OPTICAL AMPLITUDE MODULATION SYSTEM CAPABLE OF CANCELLING HIGH ORDER COMPONENT 有权
标题翻译：可以取消高阶部件的光功率调制系统
公开(公告)号：US20090238510A1
公开(公告)日：2009-09-24
申请号：US12065278
申请日：2006-08-30
申请人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
发明人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
IPC分类号： G02F1/225
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。

5. 发明申请

US20090103924A1 FOURTH HARMONIC GENERATING SYSTEM USING OPTICAL DOUBLE SIDE-BAND SUPPRESSED CARRIER MODULATOR 有权
标题翻译：使用光学双边带抑制载波调制器的第四谐波发生系统
公开(公告)号：US20090103924A1
公开(公告)日：2009-04-23
申请号：US12063231
申请日：2006-08-08
申请人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
发明人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
IPC分类号： H04B10/10 , G02F1/35
CPC分类号： H04L27/04 , G02F1/2255 , H04B10/506 , H04B2210/006
摘要： The present invention is to provide an optical modulating system for generating a signal of a frequency (f0+2fm) and a signal of a frequency (f0−2fm) and suppressing a signal of a frequency (f0) by a DSB-SC modulator.A fourth harmonic generating system for solving the above problem comprises a first DSB-SC modulator (2) a second DSB-SC modulator (3) and a signal control section (5) for controlling a modulating signal from a signal source (4) for generating modulating signals applied to the first and second DSB-SC modulators (2,3) so that a lower side-band signal (f0) generated by modulating the upper side-band signal of the DSB-SC modulator (2) by the DSB-SC modulator (3) and an upper side-band signal (f0) generated by modulating the lower side-band signal of the DSB-SC modulator (2) by the DSB-SC modulator (3) cancel each other.
摘要翻译：本发明提供一种用于产生频率（f0 + 2fm）的信号和频率（f0-2fm）的信号并且通过DSB-SC调制器抑制频率（f0）的信号的光调制系统。用于解决上述问题的第四谐波发生系统包括第一DSB-SC调制器（2），第二DSB-SC调制器（3）和信号控制部分（5），用于控制来自信号源（4）的调制信号产生施加到第一和第二DSB-SC调制器（2,3）的调制信号，使得通过DSB调制DSB-SC调制器（2）的上边带信号产生的下边带信号（f0） -SC调制器（3）和通过DSB-SC调制器（3）调制DSB-SC调制器（2）的下边带信号而产生的上边带信号（f0）相互抵消。

6. 发明申请

US20090041472A1 AUTOMATIC ADJUSTING SYSTEM OF FREQUENCY SHIFT KEYING MODULATOR 有权
标题翻译：频移键控调制器自动调节系统
公开(公告)号：US20090041472A1
公开(公告)日：2009-02-12
申请号：US12064631
申请日：2006-08-23
申请人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
发明人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
IPC分类号： H04B10/04
CPC分类号： G02F1/225 , G02F2201/16 , G02F2203/20 , H04B10/505 , H04B10/5165 , H04B10/5563
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。

7. 发明申请

US20050211875A1 Photoelectric oscillator 有权
标题翻译：光电振荡器
公开(公告)号：US20050211875A1
公开(公告)日：2005-09-29
申请号：US11060565
申请日：2005-02-18
申请人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Satoshi Shinada
发明人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Satoshi Shinada
IPC分类号： H01L27/00
CPC分类号： G02F1/2255 , G02F2203/15 , H04B10/505
摘要： A photoelectric oscillator includes a laser beam projection unit; an optical modulator on an optical path extending from the projection unit, which optical modulator outputs a modulated signal or an optical signal containing a harmonic of the modulated signal and includes a modulation electrode whose resonant frequency band includes the frequency band of the modulation signal; a photoelectric converter for converting the output of the optical modulator to an electric signal; a feedback circuit for selecting from the radio-frequency electric signal obtained from the photoelectric converter an electric signal to be re-supplied to the optical modulator; and an output section for outputting an optical signal containing the modulation signal or a harmonic of the modulation signal or outputting the modulation signal or a harmonic of the modulation signal. A laser beam of sufficient intensity is input from the projection unit to produce a radio-frequency electric signal in the feedback circuit, and the radio-frequency electric signal or an optical signal containing the radio-frequency electric signal or the radio-frequency signal is output from the photoelectric oscillator.
摘要翻译：光电振荡器包括激光束投影单元; 光调制器从投影单元延伸的光调制器，该光调制器输出调制信号或包含调制信号的谐波的光信号，并包括其调谐电极，其谐振频带包括调制信号的频带; 光电转换器，用于将光调制器的输出转换成电信号; 用于从所述光电转换器获得的所述射频电信号中选择要再次提供给所述光调制器的电信号的反馈电路; 以及输出部分，用于输出包含调制信号或调制信号的谐波的光信号或输出调制信号或调制信号的谐波。从投影单元输入足够强度的激光束，在反馈电路中产生射频电信号，射频电信号或包含射频电信号或射频信号的光信号为从光电振荡器输出。

8. 发明授权

US08270780B2 Optical switch system using optical interference 有权
标题翻译：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
申请人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
发明人： Tetsuya Kawanishi , Masayuki Izutsu , Takahide Sakamoto , Masahiro Tsuchiya
IPC分类号： G02F1/035 , G02F1/01 , G02F1/295 , G02B26/00 , G02B6/26 , G02B6/42
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。

9. 发明申请

US20110242644A1 High-Speed Multiplied Signal Generating Method And Device 有权
标题翻译：高速乘法信号发生方法与装置
公开(公告)号：US20110242644A1
公开(公告)日：2011-10-06
申请号：US13159397
申请日：2011-06-13
申请人： Tetsuya KAWANISHI , Takahide Sakamoto , Masahiro Tsuchiya
发明人： Tetsuya KAWANISHI , Takahide Sakamoto , Masahiro Tsuchiya
IPC分类号： G02F1/365
CPC分类号： G02F1/353 , G02F2001/212
摘要： It is an object of the present invention to provide an apparatus that can obtain a multiplied harmonic signal fast and with ease, and the method using the apparatus.The object is attained by the method for obtaining a multiple harmonic signal comprises, suppressing a different parity optical signal having parity different from fundamental optical signals; suppressing residual optical signals using an optical filter after suppressing the different parity optical signal; and obtaining the frequency difference component using the fundamental optical signals, and the device realizing the method.
摘要翻译：本发明的目的是提供一种能够快速且容易地获得倍增谐波信号的装置，以及使用该装置的方法。该目的是通过用于获得多重谐波信号的方法来实现的，包括：抑制具有与基本光信号不同的奇偶校验的不同奇偶校验光信号; 在抑制不同奇偶校验光信号之后，使用滤光器抑制残留光信号; 并使用基本光信号获得频差分量，以及实现该方法的装置。

10. 发明授权

US08023775B2 Super flat optical frequency comb signal generator 有权
标题翻译：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
申请人： Takahide Sakamoto , Tetsuya Kawanishi , Masahiro Tsuchiya , Masayuki Izutsu
发明人： Takahide Sakamoto , Tetsuya Kawanishi , Masahiro Tsuchiya , Masayuki Izutsu
IPC分类号： G02F1/225 , G02F1/01
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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