公开(公告)号：US20110229150A1

公开(公告)日：2011-09-22

申请号：US13048150

申请日：2011-03-15

申请人： Masato NISHIHARA ,  Tomoo TAKAHARA ,  Takeshi HOSHIDA

发明人： Masato NISHIHARA ,  Tomoo TAKAHARA ,  Takeshi HOSHIDA

IPC分类号： H04B10/04

CPC分类号： H04B10/505 ,  H04B10/5162

摘要： An optical modulation apparatus includes a first modulator, a second modulator, a multiplexer, a calculator and an adjustor. The first modulator configured to modulate light emitted by a light source using a first input signal and output a first modulated signal. The second modulator configured to modulate the light using a second input signal and output a second modulated signal. The multiplexer configured to multiplex the first and second modulated signals and output a multiplexed signal. The calculator configured to calculate a power difference between a higher-side frequency component having a frequency higher than a center frequency of the multiplexed signal and a lower-side frequency component having a frequency lower than the center frequency. The adjustor configured to adjust delays of the first and second input signals based on the power.

摘要翻译： 光调制装置包括第一调制器，第二调制器，多路复用器，计算器和调节器。 第一调制器被配置为使用第一输入信号调制由光源发射的光并输出第一调制信号。 第二调制器被配置为使用第二输入信号调制光并输出第二调制信号。 复用器被配置为复用第一和第二调制信号并输出​​多路复用信号。 所述计算器被配置为计算频率高于所述多路复用信号的中心频率的较高侧频率分量与具有低于所述中心频率的频率的下侧频率分量之间的功率差。 调整器被配置为基于功率来调整第一和第二输入信号的延迟。

公开(公告)号：US20110229148A1

公开(公告)日：2011-09-22

申请号：US13048148

申请日：2011-03-15

申请人： Masato NISHIHARA ,  Tomoo Takahara ,  Takeshi Hoshida

发明人： Masato NISHIHARA ,  Tomoo Takahara ,  Takeshi Hoshida

IPC分类号： H04B10/04

CPC分类号： H04B10/50572 ,  H04B10/5053 ,  H04B10/50575 ,  H04B10/5561

摘要： An optical modulation apparatus includes a first modulator, a second modulator, a multiplexer, a detector and an adjustor. The first modulator modulates light emitted by a light source using a first input signal and outputs a first modulated signal. The second modulator modulates the light using a second input signal and outputs a second modulated signal. The multiplexer multiplexes the first and second modulated signals and outputs a multiplexed signal. The detector is configured to detect a dip where power in a waveform of the multiplexed signal is equal to or smaller than a predetermined value. The adjustor is configured to adjust a delay of the first and second input signals based on power at the dip.

摘要翻译： 光调制装置包括第一调制器，第二调制器，多路复用器，检测器和调节器。 第一调制器使用第一输入信号调制由光源发射的光，并输出第一调制信号。 第二调制器使用第二输入信号调制光并输出第二调制信号。 复用器复用第一和第二调制信号并输出​​多路复用信号。 检测器被配置为检测多路复用信号的波形中的功率等于或小于预定值的下降。 调整器被配置为基于倾角处的功率来调整第一和第二输入信号的延迟。

公开(公告)号：US20090226184A1

公开(公告)日：2009-09-10

申请号：US12394729

申请日：2009-02-27

申请人： Masato NISHIHARA ,  Tomoo Takahara

发明人： Masato NISHIHARA ,  Tomoo Takahara

IPC分类号： H04B10/04

CPC分类号： H04B10/50577 ,  H04B10/5051 ,  H04B10/5053 ,  H04B10/58

摘要： An optical modulation device and method thereof is provided. The optical modulation device includes a decision circuit making a decision with respect to an input data signal in accordance with a timing of a first clock signal, a first modulator modulating light output based on the data signal by the decision circuit; a second modulator modulating the modulated light in accordance with a timing of a second clock signal; and delay controller delaying the first clock signal within a range of a phase margin of a decision circuit, and delaying the second clock signal, thereby controlling a state of a phase difference between the data signal and the second clock signal.

摘要翻译： 提供了一种光调制装置及其方法。 光调制装置包括：判定电路，根据第一时钟信号的定时，对输入数据信号进行判定，第一调制器，根据判定电路调制基于数据信号的光输出; 根据第二时钟信号的定时调制调制光的第二调制器; 延迟控制器在判定电路的相位裕度的范围内延迟第一时钟信号，并延迟第二时钟信号，从而控制数据信号与第二时钟信号之间的相位差的状态。

公开(公告)号：US20080170864A1

公开(公告)日：2008-07-17

申请号：US12013708

申请日：2008-01-14

申请人： Masato NISHIHARA ,  Tomoo Takahara ,  Yuichi Akiyama ,  Masahiro Yuki

发明人： Masato NISHIHARA ,  Tomoo Takahara ,  Yuichi Akiyama ,  Masahiro Yuki

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。

公开(公告)号：US20130121693A1

公开(公告)日：2013-05-16

申请号：US13613951

申请日：2012-09-13

申请人： Toshiki TANAKA ,  Takeshi HOSHIDA ,  Masato NISHIHARA ,  Shoichiro ODA

发明人： Toshiki TANAKA ,  Takeshi HOSHIDA ,  Masato NISHIHARA ,  Shoichiro ODA

IPC分类号： H04J14/02

CPC分类号： H04J14/0221 ,  H01S3/06754 ,  H01S3/094096 ,  H01S3/2383 ,  H01S3/302 ,  H04B10/2916 ,  H04J14/0279

摘要： An optical transmission system for communicating between transmission devices includes a first pump light source that supplies a first pump light, a second pump light source that supplies a second pump light, an optical transmission line that propagates an optical signal between the transmission devices, and a plurality of couplers that form a plurality of zones in the transmission line, the first pump light source and the second pump light source being optically connected to different couplers of the plurality of couplers, the second pump light Raman-amplifying the first pump light in a zone in which the second pump light is input in the transmission line.

摘要翻译： 用于在传输装置之间进行通信的光传输系统包括提供第一泵浦光的第一泵浦光源，提供第二泵浦光的第二泵浦光源，在传输装置之间传播光信号的光传输线，以及 多个耦合器，其在所述传输线路中形成多个区域，所述第一泵浦光源和所述第二泵浦光源光学连接到所述多个耦合器中的不同耦合器，所述第二泵浦光拉曼放大所述第一泵浦光 其中第二泵浦光被输入到传输线中。