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1. 发明申请

US20100067914A1 Polarization multiplexed light transmitter and control method threof 有权
标题翻译：极化复用光发射机和控制方法三
公开(公告)号：US20100067914A1
公开(公告)日：2010-03-18
申请号：US12585156
申请日：2009-09-04
申请人： Toshiki Tanaka , Yuichi Akiyama , Masahiro Yuki , Hideyuki Miyata
发明人： Toshiki Tanaka , Yuichi Akiyama , Masahiro Yuki , Hideyuki Miyata
IPC分类号： H04J14/08
CPC分类号： H04J14/06 , H04B10/5053 , H04B10/5057 , H04B10/532 , H04B10/58
摘要： The polarization multiplexed light transmitter takes out a part of a polarization multiplexed light to be transmitted as a monitor light; makes orthogonal polarization components contained in the monitor light to interfere with each other, to generate a polarization interfering light; converts the polarization interfering light into an electric signal; measures the power of an alternate current component contained in the electric signal after eliminating a direct current component thereof; and feedback controls delay amount varying sections so that an inter-polarized channel delay time judged based on a change in the measured power reaches a predetermined value. Thus, the delay time between the orthogonal polarization components in the polarization multiplexed light can be varied flexibly at a high speed with a simple configuration, and thus, it becomes possible to suppress transmission characteristics degradation of the polarization multiplexed light due to a change in system state.
摘要翻译：偏振复用光发射器取出作为监视光发射的偏振复用光的一部分; 使包含在监视光中的正交偏振分量彼此干涉，以产生偏振干涉光; 将偏振干涉光转换为电信号; 在消除其直流分量之后测量电信号中包含的交流分量的功率; 并且反馈控制延迟量变化部分，使得基于测量功率的变化判断的极化间通道延迟时间达到预定值。因此，通过简单的结构，偏振复用光中的正交偏振分量之间的延迟时间可以以高速度灵活地变化，因此可以抑制由于系统变化引起的偏振复用光的传输特性的劣化州。

2. 发明授权

US08412047B2 Polarization multiplexed light transmitter and control method thereof 有权
标题翻译：极化复用光发射机及其控制方法
公开(公告)号：US08412047B2
公开(公告)日：2013-04-02
申请号：US12585156
申请日：2009-09-04
申请人： Toshiki Tanaka , Yuichi Akiyama , Masahiro Yuki , Hideyuki Miyata
发明人： Toshiki Tanaka , Yuichi Akiyama , Masahiro Yuki , Hideyuki Miyata
IPC分类号： H04J14/06 , H04J14/00 , H04B10/00 , G02F1/00 , G02B6/00
CPC分类号： H04J14/06 , H04B10/5053 , H04B10/5057 , H04B10/532 , H04B10/58
摘要： The polarization multiplexed light transmitter takes out a part of a polarization multiplexed light to be transmitted as a monitor light; makes orthogonal polarization components contained in the monitor light to interfere with each other, to generate a polarization interfering light; converts the polarization interfering light into an electric signal; measures the power of an alternate current component contained in the electric signal after eliminating a direct current component thereof; and feedback controls delay amount varying sections so that an inter-polarized channel delay time judged based on a change in the measured power reaches a predetermined value. Thus, the delay time between the orthogonal polarization components in the polarization multiplexed light can be varied flexibly at a high speed with a simple configuration, and thus, it becomes possible to suppress transmission characteristics degradation of the polarization multiplexed light due to a change in system state.
摘要翻译：偏振复用光发射器取出作为监视光发射的偏振复用光的一部分; 使包含在监视光中的正交偏振分量彼此干涉，以产生偏振干涉光; 将偏振干涉光转换为电信号; 在消除其直流分量之后测量电信号中包含的交流分量的功率; 并且反馈控制延迟量变化部分，使得基于测量功率的变化判断的极化间通道延迟时间达到预定值。因此，通过简单的结构，偏振复用光中的正交偏振分量之间的延迟时间可以以高速度灵活地变化，从而可以抑制由于系统的变化引起的偏振复用光的传输特性的劣化州。

3. 发明申请

US20110032594A1 Optical modulation device and optical modulation method 有权
标题翻译：光调制装置及光调制方式
公开(公告)号：US20110032594A1
公开(公告)日：2011-02-10
申请号：US12805065
申请日：2010-07-09
申请人： Toshiki Tanaka , Hideyuki Miyata , Yuichi Akiyama , Takeshi Hoshida
发明人： Toshiki Tanaka , Hideyuki Miyata , Yuichi Akiyama , Takeshi Hoshida
IPC分类号： G02F1/03
CPC分类号： G02F1/2255 , G02F1/0123 , H04B10/505 , H04B10/5162 , H04B10/5167 , H04B10/5561
摘要： According to an aspect of an embodiment, an optical modulation device includes a Mach-Zehnder modulator and a controller. The Mach-Zehnder modulator is supplied a drive signal and a bias voltage. The Mach-Zehnder modulator modulates inputted light on the bases of the drive signal and the bias voltage. The drive signal selectively is superimposes a predetermined frequency signal. The bias voltage selectively is superimposes the predetermined frequency signal. The controller selects a superimposing target which is the drive signal or the bias voltage so as to change modulation formats.
摘要翻译：根据实施例的一个方面，光调制装置包括马赫 - 曾德调制器和控制器。马赫曾德尔调制器提供驱动信号和偏置电压。马赫 - 曾德尔调制器根据驱动信号和偏置电压调制输入的光。驱动信号选择性地叠加预定的频率信号。选择性地将偏置电压叠加在预定频率信号上。控制器选择作为驱动信号或偏置电压的叠加目标，以便改变调制格式。

4. 发明授权

US08400702B2 Optical modulation device and optical modulation method 有权
标题翻译：光调制装置及光调制方式
公开(公告)号：US08400702B2
公开(公告)日：2013-03-19
申请号：US12805065
申请日：2010-07-09
申请人： Toshiki Tanaka , Hideyuki Miyata , Yuichi Akiyama , Takeshi Hoshida
发明人： Toshiki Tanaka , Hideyuki Miyata , Yuichi Akiyama , Takeshi Hoshida
IPC分类号： G02B26/00
CPC分类号： G02F1/2255 , G02F1/0123 , H04B10/505 , H04B10/5162 , H04B10/5167 , H04B10/5561
摘要： According to an aspect of an embodiment, an optical modulation device includes a Mach-Zehnder modulator and a controller. The Mach-Zehnder modulator is supplied a drive signal and a bias voltage. The Mach-Zehnder modulator modulates inputted light on the bases of the drive signal and the bias voltage. The drive signal selectively is superimposes a predetermined frequency signal. The bias voltage selectively is superimposes the predetermined frequency signal. The controller selects a superimposing target which is the drive signal or the bias voltage so as to change modulation formats.
摘要翻译：根据实施例的一个方面，光调制装置包括马赫 - 曾德调制器和控制器。马赫曾德尔调制器提供驱动信号和偏置电压。 Mach-Zehnder调制器根据驱动信号和偏置电压调制输入的光。驱动信号选择性地叠加预定的频率信号。选择性地将偏置电压叠加在预定频率信号上。控制器选择作为驱动信号或偏置电压的叠加目标，以便改变调制格式。

5. 发明申请

US20080187324A1 OPTICAL TRANSMITTER AND CONTROL METHOD THEREFOR 有权
标题翻译：光发射机及其控制方法
公开(公告)号：US20080187324A1
公开(公告)日：2008-08-07
申请号：US12013857
申请日：2008-01-14
申请人： Yuichi AKIYAMA , Hideyuki Miyata , Toshiki Tanaka , Masato Nishihara
发明人： Yuichi AKIYAMA , Hideyuki Miyata , Toshiki Tanaka , Masato Nishihara
IPC分类号： H04B10/04
CPC分类号： H04B10/5053 , H04B10/50 , H04B10/50575
摘要： The disclosed optical transmitter and control method include performing phase modulation of a light propagating through a corresponding optical path in accordance with a data signal, supplying bias voltages for regulating an operating point of each of phase modulation performed, imparting a predetermined phase difference, supplying bias voltages for phase difference regulation and coupling lights output from the corresponding optical paths. The optical transmitter includes superimposing a pilot signal on either one of bias voltages where the pilot signal has a frequency lower than a frequency of a bit rate of the data signal, and performing a feedback control in accordance with a result of monitoring.
摘要翻译：所公开的光发射机和控制方法包括根据数据信号执行通过对应的光路传播的光的相位调制，提供用于调节执行的每个相位调制的工作点的偏置电压，赋予预定的相位差，提供偏置用于从相应光路输出的相位差调节和耦合光的电压。光发射机包括将导频信号叠加在导频信号的频率低于数据信号的比特率的频率的偏置电压中的任一个上，并且根据监视的结果进行反馈控制。

6. 发明授权

US08582981B2 Optical transmitter and control method therefor 有权
标题翻译：光发射机及其控制方法
公开(公告)号：US08582981B2
公开(公告)日：2013-11-12
申请号：US12013857
申请日：2008-01-14
申请人： Yuichi Akiyama , Hideyuki Miyata , Toshiki Tanaka , Masato Nishihara
发明人： Yuichi Akiyama , Hideyuki Miyata , Toshiki Tanaka , Masato Nishihara
IPC分类号： H04B10/00
CPC分类号： H04B10/5053 , H04B10/50 , H04B10/50575
摘要： The disclosed optical transmitter and control method include performing phase modulation of a light propagating through a corresponding optical path in accordance with a data signal, supplying bias voltages for regulating an operating point of each of phase modulation performed, imparting a predetermined phase difference, supplying bias voltages for phase difference regulation and coupling lights output from the corresponding optical paths. The optical transmitter includes superimposing a pilot signal on either one of bias voltages where the pilot signal has a frequency lower than a frequency of a bit rate of the data signal, and performing a feedback control in accordance with a result of monitoring.
摘要翻译：所公开的光发射机和控制方法包括根据数据信号执行通过对应的光路传播的光的相位调制，提供用于调节执行的每个相位调制的工作点的偏置电压，赋予预定的相位差，提供偏置用于从相应光路输出的相位差调节和耦合光的电压。光发射机包括将导频信号叠加在导频信号的频率低于数据信号的比特率的频率的偏置电压中的任一个上，并且根据监视的结果进行反馈控制。

7. 发明授权

US07773283B2 Optical modulation device and optical modulation method 有权
标题翻译：光调制装置及光调制方式
公开(公告)号：US07773283B2
公开(公告)日：2010-08-10
申请号：US12058406
申请日：2008-03-28
申请人： Toshiki Tanaka , Hideyuki Miyata , Yuichi Akiyama , Takeshi Hoshida
发明人： Toshiki Tanaka , Hideyuki Miyata , Yuichi Akiyama , Takeshi Hoshida
IPC分类号： G02B26/00
CPC分类号： G02F1/2255 , G02F1/0123 , H04B10/505 , H04B10/5162 , H04B10/5167 , H04B10/5561
摘要： According to an aspect of an embodiment, an optical modulation device includes a Mach-Zehnder modulator and a controller. The Mach-Zehnder modulator is supplied a drive signal and a bias voltage. The Mach-Zehnder modulator modulates inputted light on the bases of the drive signal and the bias voltage. The drive signal selectively is superimposes a predetermined frequency signal. The bias voltage selectively is superimposes the predetermined frequency signal. The controller selects a superimposing target which is the drive signal or the bias voltage so as to change modulation formats.
摘要翻译：根据实施例的一个方面，光调制装置包括马赫 - 曾德调制器和控制器。马赫曾德尔调制器提供驱动信号和偏置电压。 Mach-Zehnder调制器根据驱动信号和偏置电压调制输入的光。驱动信号选择性地叠加预定的频率信号。选择性地将偏置电压叠加在预定频率信号上。控制器选择作为驱动信号或偏置电压的叠加目标，以便改变调制格式。

8. 发明申请

US20080239448A1 OPTICAL MODULATION DEVICE AND OPTICAL MODULATION METHOD 有权
标题翻译：光学调制装置和光学调制方法
公开(公告)号：US20080239448A1
公开(公告)日：2008-10-02
申请号：US12058406
申请日：2008-03-28
申请人： Toshiki Tanaka , Hideyuki Miyata , Yuichi Akiyama , Takeshi Hoshida
发明人： Toshiki Tanaka , Hideyuki Miyata , Yuichi Akiyama , Takeshi Hoshida
IPC分类号： G02F1/00
CPC分类号： G02F1/2255 , G02F1/0123 , H04B10/505 , H04B10/5162 , H04B10/5167 , H04B10/5561
摘要： According to an aspect of an embodiment, an optical modulation device includes a Mach-Zehnder modulator and a controller. The Mach-Zehnder modulator is supplied a drive signal and a bias voltage. The Mach-Zehnder modulator modulates inputted light on the bases of the drive signal and the bias voltage. The drive signal selectively is superimposes a predetermined frequency signal. The bias voltage selectively is superimposes the predetermined frequency signal. The controller selects a superimposing target which is the drive signal or the bias voltage so as to change modulation formats.
摘要翻译：根据实施例的一个方面，光调制装置包括马赫 - 曾德调制器和控制器。马赫曾德尔调制器提供驱动信号和偏置电压。 Mach-Zehnder调制器根据驱动信号和偏置电压调制输入的光。驱动信号选择性地叠加预定的频率信号。选择性地将偏置电压叠加在预定频率信号上。控制器选择作为驱动信号或偏置电压的叠加目标，以便改变调制格式。

9. 发明授权

US08121492B2 Optical transmitting apparatus 有权
标题翻译：光发射装置
公开(公告)号：US08121492B2
公开(公告)日：2012-02-21
申请号：US12318597
申请日：2008-12-31
申请人： Yuichi Akiyama , Hideyuki Miyata , Noriaki Mizuguchi
发明人： Yuichi Akiyama , Hideyuki Miyata , Noriaki Mizuguchi
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/5053 , H04B10/5051 , H04B10/5057
摘要： An optical transmitting apparatus includes a modulating unit that branches an input light and performs independent phase modulation to branched optical signals of arms, a phase adjusting unit that changes a phase difference between the optical signals of respective arms according to a control signal, a combining unit that combines modulated lights having the phase difference, an acquiring unit that acquires a positive-phase signal and a negative-phase signal from the combining unit, a subtracting unit that obtains a difference between the positive-phase signal and the negative-phase signal acquired by the acquiring unit, a detecting unit detecting a power of a differential signal from subtraction by the subtracting unit, and a control unit that changes the control signal according to signal component intensity detected by the detecting unit.
摘要翻译：光发送装置包括调制单元，其分支输入光并对臂的分支光信号执行独立的相位调制;相位调整单元，其根据控制信号改变各个臂的光信号之间的相位差;组合单元其组合具有相位差的调制光，获取单元，其从所述组合单元获取正相信号和负相位信号;减法单元，其获得所获得的所述正相信号和所述负相位信号之间的差由所述获取单元检测所述减法单元从减法中检测差分信号的功率;以及控制单元，其根据由所述检测单元检测到的信号分量强度改变所述控制信号。

10. 发明申请

US20100080571A1 OPTICAL SIGNAL TRANSMITTER 审中-公开
标题翻译：光信号发射机
公开(公告)号：US20100080571A1
公开(公告)日：2010-04-01
申请号：US12494812
申请日：2009-06-30
申请人： Yuichi Akiyama , Hideyuki Miyata , Takeshi Hoshida
发明人： Yuichi Akiyama , Hideyuki Miyata , Takeshi Hoshida
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/54 , G02F1/0123 , G02F1/0136 , H04B10/505 , H04B10/532 , H04B10/5561 , H04J14/06
摘要： An optical signal transmitter includes first and second modulation units, a combiner, and a control unit. The first and second modulation units generate first and second modulated optical signals, respectively. The combiner combines the first and second modulated optical signals to generate a polarization multiplexed optical signal. The control unit controls at least one of the first and second modulation units so that the optical powers of the first and second modulated optical signals become approximately equal to each other.
摘要翻译：光信号发射机包括第一和第二调制单元，组合器和控制单元。第一和第二调制单元分别产生第一和第二调制光信号。组合器组合第一和第二调制光信号以产生偏振复用光信号。控制单元控制第一和第二调制单元中的至少一个，使得第一和第二调制光信号的光功率彼此近似相等。

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