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1. 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。

2. 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。

3. 发明授权

US08565616B2 Polarized-wave-multiplexing optical transmitter and control method of polarized-wave-multiplexed optical signal 有权
标题翻译：偏振波复用光信号的偏振波复用光信号的控制方法
公开(公告)号：US08565616B2
公开(公告)日：2013-10-22
申请号：US13028677
申请日：2011-02-16
申请人： Toshiki Tanaka , Yuichi Akiyama , Masato Nishihara
发明人： Toshiki Tanaka , Yuichi Akiyama , Masato Nishihara
IPC分类号： H04B10/04
CPC分类号： H04B10/50575 , H04B10/564 , H04J14/06
摘要： A polarized-wave-multiplexing optical transmitter including: an optical combiner generating a polarized-wave-multiplexed optical signal by polarized-wave-multiplexing a first optical modulation signal and a second optical modulation signal; an optical power fluctuation portion fluctuating optical power of the first optical modulation signal and the second optical modulation signal periodically; a total-optical-power detection portion detecting fluctuation amount of total optical power of the polarized-wave-multiplexed optical signal; and an optical power controller reducing an optical power difference between the first optical modulation signal and the second optical modulation signal based on detection result of the total-optical-power detection portion.
摘要翻译：一种偏振波复用光发送器，包括：光合成器，通过对第一光调制信号和第二光调制信号进行极化波多路复用产生偏振波复用光信号; 光功率波动部分周期性地波动第一光调制信号和第二光调制信号的光功率; 总光功率检测部分，检测偏振波复用光信号的总光功率的波动量; 以及光功率控制器，其基于所述总光功率检测部的检测结果，降低所述第一光调制信号与所述第二光调制信号之间的光功率差。

4. 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。

5. 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。

6. 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。

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

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。

9. 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。

10. 发明授权

US08855498B2 Skew suppression method and optical transmission system 有权
标题翻译：偏斜抑制方法和光传输系统
公开(公告)号：US08855498B2
公开(公告)日：2014-10-07
申请号：US13369365
申请日：2012-02-09
申请人： Toshiki Tanaka , Masato Nishihara
发明人： Toshiki Tanaka , Masato Nishihara
IPC分类号： H04B10/00 , H04B10/08 , H04B10/50
CPC分类号： H04B10/5055 , H04B2210/254
摘要： A method for suppressing a skew between a first channel and a second channel in an optical transmission system having a transmitter that transmits an optical signal with the first channel and the second channel and a receiver that receives the optical signal, the method includes: controlling dispersion added to the optical signal to be larger than a specified amount; and controlling a delay time of at least one of the first channel and the second channel in the receiver based on a quality of the optical signal monitored in the receiver to suppress the skew between the first channel and the second channel in the receiver.
摘要翻译：一种用于抑制具有发送光信号与第一信道和第二信道的发射机的光传输系统中的第一信道和第二信道之间的偏斜的方法以及接收光信号的接收机，该方法包括：控制色散添加到光信号大于指定量; 以及基于在接收机中监视的光信号的质量来控制接收机中的第一信道和第二信道中的至少一个的延迟时间，以抑制接收机中第一信道和第二信道之间的偏斜。

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