专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

US08565615B2 Optical modulation apparatus 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：US08565615B2
公开(公告)日：2013-10-22
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 , H04B17/00 , H04J14/02
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。

32. 发明申请

US20110229148A1 OPTICAL MODULATION APPARATUS 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：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。

33. 发明授权

US08849128B2 Multi-wavelength light source 有权
标题翻译：多波长光源
公开(公告)号：US08849128B2
公开(公告)日：2014-09-30
申请号：US13413874
申请日：2012-03-07
申请人： Shoichiro Oda , Takeshi Hoshida , Toshiki Tanaka , Takahito Tanimura , Tomoo Takahara
发明人： Shoichiro Oda , Takeshi Hoshida , Toshiki Tanaka , Takahito Tanimura , Tomoo Takahara
IPC分类号： H04B10/04 , H04J14/02 , H04B10/548 , H04B10/50 , H01S5/00 , H01S5/40
CPC分类号： H04B10/506 , H01S5/005 , H01S5/0085 , H01S5/4087 , H04B10/548
摘要： Light output from a seed light source generation unit that outputs continuous light having a single frequency or a plurality of frequencies is input by a multi-wavelength light source to an optical circulation unit, and light having a plurality of frequencies that is frequency-synchronized with seed light output from the seed light source generation unit is generated. The optical circulation unit is provided with an optical frequency shifter to shift light frequencies, and includes a circulation circuit to return output from the optical frequency shifter to the input side. On a circulation path, an optical spectral shaper capable of adjusting an optical amount of attenuation for each frequency unit is provided so that optical amount of attenuations are adjusted, and thereby the number and the like of optical frequencies output from the optical circulation unit are changed.
摘要翻译：从多光波长光源输入输出具有单一频率或多个频率的连续光的种子光源生成部的光输出到光循环装置，具有频率同步的多个频率的光产生从种子光源生成单元输出的种子光。光学循环单元设置有用于移动光频率的光学移频器，并且包括循环电路，以将输出从光学移频器返回到输入侧。在循环路径上，设置能够调整每个频率单位的光衰减量的光谱整形器，从而调整光衰减量，从而使从光循环单元输出的光频数等变化。

34. 发明申请

US20120230694A1 OPTICAL TRANSMITTER 有权
标题翻译：光学发射器
公开(公告)号：US20120230694A1
公开(公告)日：2012-09-13
申请号：US13347405
申请日：2012-01-10
申请人： Toshiki Tanaka , Tomoo Takahara , Shoichiro Oda , Takeshi Hoshida
发明人： Toshiki Tanaka , Tomoo Takahara , Shoichiro Oda , Takeshi Hoshida
IPC分类号： H04J14/02
CPC分类号： H04J14/026 , H04B10/506 , H04B10/532 , H04J14/0298 , H04L5/0008 , H04L5/12 , H04L27/2096 , H04L27/2637 , H04L27/2642 , H04L27/2697
摘要： A clock signal from a single reference clock is frequency converted, and the frequency-converted signal is input to an equal-interval-optical-frequency-comb generator and a modulator of an optical modulator. By varying the electric frequency of the clock signal input to the equal-interval-optical-frequency-comb generator, frequency intervals of a frequency comb to be generated can be varied, while by selectively employing a particular optical frequency from among the continuous light beams of the generated frequency comb, a frequency comb having unequal intervals can be generated. It is also possible to vary the modulation rate by varying the clock frequency of a driving signal to be input to the optical modulator. By using a clock signal of a single reference clock, the frequency intervals of the frequency comb and the variation of the modulation rate synchronize with each other.
摘要翻译：来自单个参考时钟的时钟信号被频率转换，并且频率转换的信号被输入到等间隔光频率梳发生器和光调制器的调制器。通过改变输入到等间隔光频梳发生器的时钟信号的电频，可以改变要产生的频率梳的频率间隔，同时通过选择性地使用来自连续光束中的特定光频可以产生具有不等间隔的频率梳。也可以通过改变要输入到光调制器的驱动信号的时钟频率来改变调制速率。通过使用单个参考时钟的时钟信号，频率梳的频率间隔和调制速率的变化彼此同步。

35. 发明申请

US20070003184A1 Delay time adjustment device and optical receiver using it 审中-公开
标题翻译：延迟时间调节装置和使用它的光接收机
公开(公告)号：US20070003184A1
公开(公告)日：2007-01-04
申请号：US11356235
申请日：2006-02-17
申请人： Tomoo Takahara , Takeshi Hoshida
发明人： Tomoo Takahara , Takeshi Hoshida
IPC分类号： G02B6/12
CPC分类号： G02B6/4204
摘要： A substrate 10 comprises a pair of photo detector modules and a pair of amplifiers. On the rear (facing a drawing) of the substrate 10, a coplanar waveguide 30 is formed. a cathode terminal 16 of a PIN photodiode 11 and the input terminal 21 of the amplifier 20 are connected by a wire 27. The output terminals of the two amplifiers and a pair of ground terminals 23g are connected to the signal line (S) and a pair of ground lines (G) of the coplanar waveguide 30 by flexible substrates 40a and 40b), respectively. Two branched optical signals which two photo detector modules receive from a delay interferometer is combined on the signal line (S) of the coplanar waveguide 30 on which the signal lines of the flexible substrates 40a and 40b are connected, after electrical signals.
摘要翻译：衬底10包括一对光电检测器模块和一对放大器。在基板10的背面（面对图）上，形成共面波导管30。 PIN光电二极管11的阴极端子16和放大器20的输入端子21通过导线27连接。两个放大器的输出端子和一对接地端子23g分别通过柔性基板40a和40b）连接到共面波导30的信号线（S）和一对接地线（G）。在延迟干涉仪上接收的两个光电检测器模块的两个分支的光信号在电信号之后被组合在共面波导30的信号线（S）上，柔性基板40a和40b的信号线连接在该共面波导30上。

36. 发明申请

US20080056710A1 Dispersion compensating apparatus and dispersion compensation control method 有权
标题翻译：色散补偿装置和色散补偿控制方法
公开(公告)号：US20080056710A1
公开(公告)日：2008-03-06
申请号：US11785896
申请日：2007-04-20
申请人： Hiroki Ooi , Hiroshi Onaka , Takeshi Hoshida
发明人： Hiroki Ooi , Hiroshi Onaka , Takeshi Hoshida
IPC分类号： H04B17/00
CPC分类号： H04B10/25133
摘要： A variable dispersion compensating unit compensates an optical signal, and changes the compensation amount according to a control signal that has a given frequency. After demodulation of the compensated optical signal, error conditions of the signal are monitored and an error signal is output. A band pass filter filters the error signal for a component having a frequency equal to or less than the given frequency. Based on the component and on the control signal, a synchronous detecting circuit generates a compensation amount modification signal. The compensation amount modification signal is superposed on the control signal.
摘要翻译：可变色散补偿单元补偿光信号，并根据具有给定频率的控制信号改变补偿量。在对补偿的光信号进行解调之后，监视信号的误差状况并输出误差信号。带通滤波器滤波具有等于或小于给定频率的频率的分量的误差信号。基于分量和控制信号，同步检测电路产生补偿量修正信号。补偿量修正信号叠加在控制信号上。

37. 发明授权

US07869715B2 Dispersion compensating apparatus and dispersion compensation control method 有权
标题翻译：色散补偿装置和色散补偿控制方法
公开(公告)号：US07869715B2
公开(公告)日：2011-01-11
申请号：US11785896
申请日：2007-04-20
申请人： Hiroki Ooi , Hiroshi Onaka , Takeshi Hoshida
发明人： Hiroki Ooi , Hiroshi Onaka , Takeshi Hoshida
IPC分类号： H04B10/12
CPC分类号： H04B10/25133
摘要： A variable dispersion compensating unit compensates an optical signal, and changes the compensation amount according to a control signal that has a given frequency. After demodulation of the compensated optical signal, error conditions of the signal are monitored and an error signal is output. A band pass filter filters the error signal for a component having a frequency equal to or less than the given frequency. Based on the component and on the control signal, a synchronous detecting circuit generates a compensation amount modification signal. The compensation amount modification signal is superposed on the control signal.
摘要翻译：可变色散补偿单元补偿光信号，并根据具有给定频率的控制信号改变补偿量。在对补偿的光信号进行解调之后，监视信号的误差状况并输出误差信号。带通滤波器滤波具有等于或小于给定频率的频率的分量的误差信号。基于分量和控制信号，同步检测电路产生补偿量修正信号。补偿量修正信号叠加在控制信号上。

38. 发明申请

US20070292140A1 Phase control apparatus and optical DQPSK receiver 失效
标题翻译：相位控制装置和光DQPSK接收机
公开(公告)号：US20070292140A1
公开(公告)日：2007-12-20
申请号：US11593591
申请日：2006-11-07
申请人： Yoshikazu Terayama , Noriaki Mizuguchi , Eiji Ishikawa , Takashi Toyomaki , Kenichi Kaburagi , Takeshi Hoshida , Jens Rasmussen , Akihiko Isomura
发明人： Yoshikazu Terayama , Noriaki Mizuguchi , Eiji Ishikawa , Takashi Toyomaki , Kenichi Kaburagi , Takeshi Hoshida , Jens Rasmussen , Akihiko Isomura
IPC分类号： H04B10/00
CPC分类号： H04B10/66
摘要： A calculation processing unit controls temperature of a Peltier device based on a slope of a waveform obtained by subtracting a waveform of a B-arm monitoring signal from a waveform of an A-arm monitoring signal and a value obtained by subtracting a value B of the B-arm monitoring signal from a value A of the A-arm monitoring signal. Similarly, the calculation processing unit controls a phase of the A-arm and a phase of the B-arm. An A-arm side micro-controller controls temperature of an A-arm side heater 22 based on the value of the A-arm monitoring signal, and controls the phase of the A-arm. A B-arm side micro-controller controls temperature of a B-arm side heater based on the value B of the B-arm monitoring signal, and controls the phase of the B-arm.
摘要翻译：计算处理单元基于通过从A臂监视信号的波形中减去B臂监视信号的波形而获得的波形的斜率，以及通过从A臂监视信号的波形中减去B的值得到的值来控制珀耳帖装置的温度 B臂监控信号从A臂A值监控信号。类似地，计算处理单元控制A臂的相位和B臂的相位。 A臂侧微型控制器基于A臂监视信号的值来控制A臂侧加热器22的温度，并且控制A臂的相位。 B臂侧微控制器基于B臂监控信号的值B控制B臂侧加热器的温度，并控制B臂的相位。

39. 发明授权

US08244138B2 Polarization-multiplexing optical transmitter polarization-multiplexing optical receiver, polarization-multiplexing optical transceiving system, and controlling method thereof 有权
标题翻译：偏振复用光发射机偏振复用光接收机，偏振复用光收发系统及其控制方法
公开(公告)号：US08244138B2
公开(公告)日：2012-08-14
申请号：US12071984
申请日：2008-02-28
申请人： Takeshi Hoshida , Jens Rasmussen
发明人： Takeshi Hoshida , Jens Rasmussen
IPC分类号： H04B10/00
CPC分类号： H04J14/06 , H04B10/532
摘要： By using low-frequency signals, an optical transmitting unit modulates one of a wavelength, a transmission timing, and an intensity of light as a carrier wave. A polarization multiplexer synthesizes the output light signals, modulated by the optical transmitting unit, in polarization states orthogonal to each other and generates polarization-multiplexing signals. A polarization splitter splits by extracting two orthogonal polarization components from the polarization-multiplexing signals. The polarization states of the polarization-multiplexing signals are controlled by a polarization controller in an optical receiving unit. A band-pass filter extracts components transmitting through passbands from output signals of the optical receiving unit and outputs an intensity of the components. Based on the intensity output from the filter, a controlling circuit generates feedback control signals for maximizing a ratio of the components of the low-frequency signals and by using the feedback control signals, the polarization controller controls the polarization states of the optical multiplexing signals.
摘要翻译：通过使用低频信号，光发送单元调制作为载波的波长，发送定时和光强度中的一个。偏振复用器以由彼此正交的极化状态合成由光发射单元调制的输出光信号，并产生偏振复用信号。偏振分离器通过从偏振复用信号中提取两个正交偏振分量来分离。偏振复用信号的偏振状态由光接收单元中的偏振控制器控制。带通滤波器提取从光接收单元的输出信号通过通带传输的分量，并输出分量的强度。基于来自滤波器的强度输出，控制电路产生用于使低频信号的分量的比率最大化的反馈控制信号，并且通过使用反馈控制信号，偏振控制器控制光复用信号的偏振状态。

40. 发明授权

US08249464B2 Optical receiver and method for optical reception 有权
标题翻译：光接收机和光接收方法
公开(公告)号：US08249464B2
公开(公告)日：2012-08-21
申请号：US12719258
申请日：2010-03-08
申请人： Shoichiro Oda , Takeshi Hoshida , Hisao Nakashima , Takahito Tanimura , Yuichi Akiyama
发明人： Shoichiro Oda , Takeshi Hoshida , Hisao Nakashima , Takahito Tanimura , Yuichi Akiyama
IPC分类号： H04B10/00 , H04B10/06 , H04J14/02
CPC分类号： H04B10/614 , H04B10/60 , H04B10/63
摘要： In-phase signal light and quadrature-phase signal light obtained by mixing input light and local light with each other are converted into digital signals. The quality of a signal to be received is monitored with reference to information obtained through digital signal processing, and the power ratio between the input signal light and the local light that are to be mixed with each other are controlled on the basis of the result of the monitoring.
摘要翻译：通过将输入光和局部光彼此混合而获得的同相信号光和正交相位信号光被转换为数字信号。参照通过数字信号处理获得的信息来监视要接收的信号的质量，并且基于将要混合的输入信号光和本地光之间的功率比来控制监控。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式