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公开(公告)号：US08582981B2
公开(公告)日：2013-11-12
申请号：US12013857
申请日：2008-01-14
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。
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公开(公告)号：US20080187324A1
公开(公告)日：2008-08-07
申请号：US12013857
申请日：2008-01-14
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。
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3.发明授权公开(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。
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4.发明申请公开(公告)号：US20110222853A1
公开(公告)日：2011-09-15
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： H04J14/06
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。
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5.发明申请Optical apparatus with loss compensation capability and optical amplifier for loss compensation 有权具有损耗补偿能力的光学设备和用于损耗补偿的光学放大器公开(公告)号：US20050088727A1
公开(公告)日：2005-04-28
申请号：US10950699
申请日：2004-09-28
CPC分类号： H04B10/291 , H01S3/1305 , H01S3/1312 , H01S5/0683 , H01S5/50
摘要： An optical apparatus having a loss compensation capability includes between an input connector 1A and an output connector 1B an input side optical parts 2 including an input monitor, an amplification medium 3, a loss medium 4, and an output side optical parts 5 including an output monitor in this order, and is provided with a control circuit 6 for controlling a gain based on a monitor result of input/output light. The amount of reflection attenuation on all points, on which the light can be reflected on the optical path from the output end of the amplification medium 3 to the output connector 1B, can be smaller than the amount of reflection attenuation on the end face of the output connector 1B.
摘要翻译： 具有损耗补偿能力的光学装置在输入连接器1A和输出连接器1B之间包括输入侧光学部件2，输入侧光学部件2包括输入监视器，放大介质3，损耗介质4和输出侧光学部件5，包括 输出监视器，并且设置有用于基于输入/输出光的监视结果来控制增益的控制电路6。 光可以从放大介质3的输出端到输出连接器1B的光路上反射的所有点上的反射衰减量可以小于在放大介质3的端面上的反射衰减量 输出连接器1B。
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6.发明授权Optical apparatus with loss compensation capability and optical amplifier for loss compensation 有权具有损耗补偿能力的光学设备和用于损耗补偿的光学放大器公开(公告)号：US07061669B2
公开(公告)日：2006-06-13
申请号：US10950699
申请日：2004-09-28
IPC分类号： H01S3/00
CPC分类号： H04B10/291 , H01S3/1305 , H01S3/1312 , H01S5/0683 , H01S5/50
摘要： An optical apparatus having a loss compensation capability includes between an input connector 1A and an output connector 1B an input side optical parts 2 including an input monitor, an amplification medium 3, a loss medium 4, and an output side optical parts 5 including an output monitor in this order, and is provided with a control circuit 6 for controlling a gain based on a monitor result of input/output light. The amount of reflection attenuation on all points, on which the light can be reflected on the optical path from the output end of the amplification medium 3 to the output connector 1B, can be smaller than the amount of reflection attenuation on the end face of the output connector 1B.
摘要翻译： 具有损耗补偿能力的光学装置在输入连接器1A和输出连接器1B之间包括输入侧光学部件2，输入侧光学部件2包括输入监视器，放大介质3，损耗介质4和输出侧光学部件5，包括 输出监视器，并且设置有用于基于输入/输出光的监视结果来控制增益的控制电路6。 光可以在从放大介质3的输出端到输出连接器1B的光路上反射的所有点上的反射衰减量可以小于在放大介质3的端面上的反射衰减量 输出连接器1B。
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公开(公告)号：US08582980B2
公开(公告)日：2013-11-12
申请号：US12013708
申请日：2008-01-14
IPC分类号： H04B10/04
CPC分类号： H04B10/548 , H04B10/5162
摘要： The disclosed device and method include varying phases of two data signals at a first predetermined frequency, performing multi-level phase modulation of a light based on the two data signals whose phases are varied at the first predetermined frequency, extracting a component having the first predetermined frequency from an optical signal subjected to the phase modulation, and controlling the phases of the two data signals based on the component extracted from the optical signal.
摘要翻译： 所公开的设备和方法包括以第一预定频率改变两个数据信号的相位，基于相位以第一预定频率变化的两个数据信号执行光的多电平相位调制，提取具有第一预定频率的分量 来自经过相位调制的光信号的频率，并且基于从光信号提取的分量来控制两个数据信号的相位。
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公开(公告)号：US08666252B2
公开(公告)日：2014-03-04
申请号：US13420043
申请日：2012-03-14
申请人： Masato Nishihara , Tomoo Takahara , Toshiki Tanaka
发明人： Masato Nishihara , Tomoo Takahara , Toshiki Tanaka
IPC分类号： H04B10/00
CPC分类号： H04J14/0257 , H04J14/0204 , H04J14/0212 , H04J14/0213 , H04J14/0221 , H04J14/0256 , H04J14/0283
摘要： There is provided an optical network system in which optical signals modulated by each of at least two modulation methods are wavelength-division-multiplexed and transferred, including: an optical transmitter configured to transmit first optical signals modulated by each of at least two modulation methods; an add-drop multiplexer configured to drop second optical signals from wavelength-division-multiplexed optical signals transferred in the optical network system, and add the first optical signals to the wavelength-division-multiplexed optical signals; an optical receiver configured to demodulate the second optical signals corresponding to each of at least two modulation methods; and a controller configured to control wavelengths of the first optical signals, the second optical signals and the wavelength-division-multiplexed optical signals so as to rearrange wavelengths of the first optical signals, the second optical signals and the wavelength-division-multiplexed optical signals so that optical signals modulated by a same modulation method are placed on an adjacent wavelength.
摘要翻译： 提供了一种光网络系统，其中由至少两种调制方法中的每一种调制的光信号被波分复用和传送，包括：光发射机，被配置为发送由至少两种调制方法中的每一种调制的第一光信号; 一种分插复用器，被配置为从光网络系统中传输的波分复用光信号中丢弃第二光信号，并将第一光信号加到波分复用光信号上; 光接收机，被配置为解调对应于至少两种调制方法中的每一种的第二光信号; 以及控制器，被配置为控制第一光信号的波长，第二光信号和波分复用光信号，以便重新排列第一光信号的波长，第二光信号和波分复用光信号 使得通过相同调制方法调制的光信号被放置在相邻的波长上。
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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
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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公开(公告)号：US20120148235A1
公开(公告)日：2012-06-14
申请号：US13315560
申请日：2011-12-09
申请人： Masato Nishihara , Tomoo Takahara , Toshiki Tanaka
发明人： Masato Nishihara , Tomoo Takahara , Toshiki Tanaka
CPC分类号： H04B10/07951 , H04B10/572 , H04B10/612 , H04B10/613 , H04B10/614 , H04B10/615 , H04B10/616 , H04B10/6161 , H04J14/0212 , H04J14/0256 , H04J14/0271 , H04J14/0279
摘要： A communication system includes a transmitter, a receiver device, and a control circuit. The transmitter transmits an optical signal. The receiver device receives the optical signal. The control circuit reduces a power consumption of the receiver device based on an accumulated chromatic dispersion of the received optical signal. The receiver device includes a receiver, an analog/digital converter, and a digital signal processor. The receiver extracts a signal indicating a complex amplitude of the optical signal. The analog/digital converter converts the signal indicating the complex amplitude into a digital signal. The digital signal processor digitally-processes the digital signal.
摘要翻译： 通信系统包括发射机，接收机设备和控制电路。 发射机发射光信号。 接收机设备接收光信号。 控制电路基于所接收的光信号的累积色散来降低接收机设备的功耗。 接收机设备包括接收机，模拟/数字转换器和数字信号处理器。 接收机提取表示光信号的复振幅的信号。 模拟/数字转换器将指示复振幅的信号转换为数字信号。 数字信号处理器对数字信号进行数字处理。
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