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1.发明申请OPTICAL TRANSMITTER, OPTICAL TRANSMISSION METHOD, AND WAVELENGTH-SELECTIVE VARIABLE DELAYER 有权光学发射器，光学传输方法和波长选择性可变延迟器公开(公告)号：US20120170928A1
公开(公告)日：2012-07-05
申请号：US11939646
申请日：2007-11-14
申请人： Toshiki TANAKA , Hisao Nakashima , Takeshi Hoshida , Toru Katagiri , Hiroki Ooi , Akira Miura
发明人： Toshiki TANAKA , Hisao Nakashima , Takeshi Hoshida , Toru Katagiri , Hiroki Ooi , Akira Miura
CPC分类号： H04J14/0286 , H04B10/2557 , H04B10/516 , H04J14/0204 , H04J14/0212 , H04J14/0217 , H04J14/0219 , H04J14/022 , H04J14/0221 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0283
摘要： An optical transmitter is provided for transmitting a wavelength multiplexed signal comprising an intensity modulation optical signal and a phase modulation optical signal through a transmission line. The optical transmitter includes a bit time difference given signal generator for generating at least two optical signals having a bit time difference therebetween, from the wavelength multiplexed signal. The optical transmitter further includes a wavelength multiplexed signal output unit to which at least two optical signals are input from the bit time difference given signal generator, and which generates and outputs a wavelength multiplexed signal in which the bit time difference was given between the phase modulation optical signal and the phase modulation optical signal.
摘要翻译： 提供了一种用于通过传输线传输包括强度调制光信号和相位调制光信号的波分复用信号的光发射机。 所述光发射机包括位时间差给定信号发生器，用于从所述波长复用信号产生具有位时间差的至少两个光信号。 光发射机还包括波长多路复用信号输出单元，从比特时间差给定信号发生器输入至少两个光信号，并且生成并输出在相位调制之间给出比特时间差的波长多路复用信号 光信号和强度调制光信号。
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2.发明授权Optical transmitter, optical transmission method, and wavelength-selective variable delayer 有权光发射机，光传输方式和波长选择可变延迟器公开(公告)号：US08625996B2
公开(公告)日：2014-01-07
申请号：US11939646
申请日：2007-11-14
申请人： Toshiki Tanaka , Hisao Nakashima , Takeshi Hoshida , Toru Katagiri , Hiroki Ooi , Akira Miura
发明人： Toshiki Tanaka , Hisao Nakashima , Takeshi Hoshida , Toru Katagiri , Hiroki Ooi , Akira Miura
IPC分类号： H04B10/00
CPC分类号： H04J14/0286 , H04B10/2557 , H04B10/516 , H04J14/0204 , H04J14/0212 , H04J14/0217 , H04J14/0219 , H04J14/022 , H04J14/0221 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0283
摘要： An optical transmitter is provided for transmitting a wavelength multiplexed signal comprising an intensity modulation optical signal and a phase modulation optical signal through a transmission line. The optical transmitter includes a bit time difference given signal generator for generating at least two optical signals having a bit time difference therebetween, from the wavelength multiplexed signal. The optical transmitter further includes a wavelength multiplexed signal output unit to which at least two optical signals are input from the bit time difference given signal generator, and which generates and outputs a wavelength multiplexed signal in which the bit time difference was given between the phase modulation optical signal and the phase modulation optical signal.
摘要翻译： 提供了一种用于通过传输线传输包括强度调制光信号和相位调制光信号的波分复用信号的光发射机。 所述光发射机包括位时间差给定信号发生器，用于从所述波长复用信号产生具有位时间差的至少两个光信号。 光发射机还包括波长多路复用信号输出单元，至少两个光信号从比特时间差给定信号发生器输入到该波长多路复用信号输出单元，并且其生成并输出波长多路复用信号，其中在强度调制 光信号和相位调制光信号。
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公开(公告)号：US08351795B2
公开(公告)日：2013-01-08
申请号：US12219863
申请日：2008-07-29
IPC分类号： H04B10/00
CPC分类号： H04B10/2572 , H04B10/532 , H04B10/5561
摘要： An optical transmission system, where in an optical transmitter a detection bit having a specific pattern set according to the number of bits to be transmitted within one symbol time, is imparted with respect to a transmission signal in which transmission information has been encoded according to a preset format, and an optical signal generated by modulating light according to the transmission signal is transmitted to a transmission line. In an optical receiver, logic inversion or bit swap of received data is detected and compensated by using the detection bit included in the received signal, a decoding process of the compensated received signal is executed. As a result, when an optical signal capable of transmitting multi-bit information within one symbol time is transferred, it is possible to realize excellent transmission characteristics, by reliably compensating an error in received data caused by the modulation format or the multiplex system of the optical signal.
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公开(公告)号：US20090087194A1
公开(公告)日：2009-04-02
申请号：US12219863
申请日：2008-07-29
IPC分类号： H04B10/00
CPC分类号： H04B10/2572 , H04B10/532 , H04B10/5561
摘要： An optical transmission system, where in an optical transmitter a detection bit having a specific pattern set according to the number of bits to be transmitted within one symbol time, is imparted with respect to a transmission signal in which transmission information has been encoded according to a preset format, and an optical signal generated by modulating light according to the transmission signal is transmitted to a transmission line. In an optical receiver, logic inversion or bit swap of received data is detected and compensated by using the detection bit included in the received signal, a decoding process of the compensated received signal is executed. As a result, when an optical signal capable of transmitting multi-bit information within one symbol time is transferred, it is possible to realize excellent transmission characteristics, by reliably compensating an error in received data caused by the modulation format or the multiplex system of the optical signal.
摘要翻译： 一种光传输系统，其中在光发射机中，根据在一个符号时间内要发送的比特数的数量，具有特定模式集的检测比特，根据发送信号已被编码的发送信号 预设格式和根据发送信号调制光产生的光信号被发送到传输线。 在光接收机中，通过使用包含在接收信号中的检测位来检测和补偿接收数据的逻辑反转或位交换，执行经补偿的接收信号的解码处理。 结果，当在一个符号时间内能够发送多位信息的光信号被传送时，通过可靠地补偿由调制格式或多路复用系统引起的接收数据中的错误，可以实现优异的传输特性 光信号。
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公开(公告)号：US08594508B2
公开(公告)日：2013-11-26
申请号：US13137024
申请日：2011-07-15
IPC分类号： H04B10/00
CPC分类号： H04B10/2572 , H04B10/532 , H04B10/5561
摘要： An optical transmission system, where in an optical transmitter a detection bit having a specific pattern set according to the number of bits to be transmitted within one symbol time, is imparted with respect to a transmission signal in which transmission information has been encoded according to a preset format, and an optical signal generated by modulating light according to the transmission signal is transmitted to a transmission line. In an optical receiver, logic inversion or bit swap of received data is detected and compensated by using the detection bit included in the received signal, a decoding process of the compensated received signal is executed. As a result, when an optical signal capable of transmitting multi-bit information within one symbol time is transferred, it is possible to realize excellent transmission characteristics, by reliably compensating an error in received data caused by the modulation format or the multiplex system of the optical signal.
摘要翻译： 一种光传输系统，其中在光发射机中，根据在一个符号时间内要发送的比特数的数量，具有特定模式集的检测比特，根据发送信号已被编码的发送信号 预设格式和根据发送信号调制光产生的光信号被发送到传输线。 在光接收机中，通过使用包含在接收信号中的检测位来检测和补偿接收数据的逻辑反转或位交换，执行经补偿的接收信号的解码处理。 结果，当在一个符号时间内能够发送多位信息的光信号被传送时，通过可靠地补偿由调制格式或多路复用系统引起的接收数据中的错误，可以实现优异的传输特性 光信号。
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公开(公告)号：US20110274430A1
公开(公告)日：2011-11-10
申请号：US13137024
申请日：2011-07-15
IPC分类号： H04J14/06
CPC分类号： H04B10/2572 , H04B10/532 , H04B10/5561
摘要： An optical transmission system, where in an optical transmitter a detection bit having a specific pattern set according to the number of bits to be transmitted within one symbol time, is imparted with respect to a transmission signal in which transmission information has been encoded according to a preset format, and an optical signal generated by modulating light according to the transmission signal is transmitted to a transmission line. In an optical receiver, logic inversion or bit swap of received data is detected and compensated by using the detection bit included in the received signal, a decoding process of the compensated received signal is executed. As a result, when an optical signal capable of transmitting multi-bit information within one symbol time is transferred, it is possible to realize excellent transmission characteristics, by reliably compensating an error in received data caused by the modulation format or the multiplex system of the optical signal.
摘要翻译： 一种光传输系统，其中在光发射机中，根据在一个符号时间内要发送的比特数的数量，具有特定模式集的检测比特，根据发送信号已被编码的发送信号 预设格式和根据发送信号调制光产生的光信号被发送到传输线。 在光接收机中，通过使用包含在接收信号中的检测位来检测和补偿接收数据的逻辑反转或位交换，执行经补偿的接收信号的解码处理。 结果，当在一个符号时间内能够发送多位信息的光信号被传送时，通过可靠地补偿由调制格式或多路复用系统引起的接收数据中的错误，可以实现优异的传输特性 光信号。
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公开(公告)号：US20080080872A1
公开(公告)日：2008-04-03
申请号：US11740954
申请日：2007-04-27
IPC分类号： H04B10/04
CPC分类号： H04B10/50572 , H04B10/505 , H04B10/50575 , H04B10/564
摘要： A signal Data1 and Data2 are output from a DQPSK signal source. The output signal is input to the modulator drivers 1 and 2 of the differential output. A drive signal is applied from the drivers 1 and 2 to a modulator, and modulated light is output. An optical coupler 20 branches modulator output, and a power monitor 21 detects the power of the branched light. A detection result is transmitted to an amplitude control unit 22. The amplitude control unit 22 adjusts the amplitude of the drivers 1 and 2 such that the detection result of the power monitor 21 can be the maximum.
摘要翻译： 从DQPSK信号源输出信号数据1和数据2。 输出信号被输入到差分输出的调制器驱动器1和2。 将驱动信号从驱动器1和2施加到调制器，并输出调制光。 光耦合器20分支调制器输出，功率监视器21检测分支光的功率。 检测结果被发送到振幅控制单元22。 振幅控制单元22调节驱动器1,2的振幅，使得功率监视器21的检测结果最大。
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公开(公告)号：US20070065161A1
公开(公告)日：2007-03-22
申请号：US11298892
申请日：2005-12-12
申请人： Akira Miura , Kentaro Nakamura , Hiroshi Onaka , Yuichi Akiyama , Hiroki Ooi , Jens Rasmussen , Takeshi Hoshida
发明人： Akira Miura , Kentaro Nakamura , Hiroshi Onaka , Yuichi Akiyama , Hiroki Ooi , Jens Rasmussen , Takeshi Hoshida
IPC分类号： H04B10/04
CPC分类号： G02F1/0123 , G02F1/2255 , H04B10/505 , H04B10/5051 , H04B10/5053 , H04B10/50575 , H04B10/50577 , H04B10/50597 , H04B10/58
摘要： A data modulator unit generates a DQPSK optical signal in accordance with a data signal. A phase shift unit provides a phase difference of π/2 between a pair of arms. A photodetector converts an output signal of the data modulator unit into an electrical signal. A filter is a low-pass filter with a cut-off frequency lower than a symbol frequency, and filters an output signal of the photodetector. A monitor unit detects power of an output signal of the filter. A phase difference control unit adjusts the amount of phase shift in the phase shift unit so as to minimize power of an output signal of the filter.
摘要翻译： 数据调制器单元根据数据信号产生DQPSK光信号。 相移单元提供一对臂之间的π/ 2的相位差。 光电检测器将数据调制器单元的输出信号转换为电信号。 滤波器是具有低于符号频率的截止频率的低通滤波器，并对光电检测器的输出信号进行滤波。 监视器单元检测滤波器的输出信号的功率。 相位差控制单元调整相移单元中的相移量，以使滤波器的输出信号的功率最小化。
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9.发明申请公开(公告)号：US20070047964A1
公开(公告)日：2007-03-01
申请号：US11301325
申请日：2005-12-13
申请人： Hiroki Ooi , Akira Miura , Takeshi Hoshida
发明人： Hiroki Ooi , Akira Miura , Takeshi Hoshida
IPC分类号： H04B10/12
CPC分类号： H04B10/66
摘要： An optical receiving apparatus sets, efficiently and optimally, a delay interferometer and a variable wavelength dispersion compensator in the apparatus. The apparatus has a variable dispersion compensation unit performing variably dispersion compensation on a received optical signal, a delay interference unit performing a delay interference process on the optical signal from the variable dispersion compensation unit, a photoelectric conversion detecting unit performing photoelectric conversion detection on the optical signal from the delay interference unit and outputting an electric signal demodulated from the differential M-ary phase modulated optical signal, a clock signal extracting unit extracting a clock signal from the demodulated electric signal fed from the photoelectric conversion detecting unit, and a dispersion compensation controlling unit controlling a dispersion compensation amount in the variable dispersion compensation unit on the basis of the clock signal extracted by the clock signal extracting unit.
摘要翻译： 一种光接收装置，在设备中有效和最佳地设置延迟干涉仪和可变波长色散补偿器。 该装置具有对接收的光信号进行可变色散补偿的可变色散补偿单元，对来自可变色散补偿单元的光信号执行延迟干扰处理的延迟干扰单元，在光学上执行光电转换检测的光电转换检测单元 来自延迟干扰单元的信号，并输出从差分M相相位调制光信号解调的电信号;时钟信号提取单元，从从光电转换检测单元馈送的解调电信号中提取时钟信号;以及色散补偿控制 基于由时钟信号提取单元提取的时钟信号，单元控制可变色散补偿单元中的色散补偿量。
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10.发明申请Optical transmitting apparatus, optical receiving apparatus, and optical communication system comprising them 审中-公开光发送装置，光接收装置和包括它们的光通信系统公开(公告)号：US20060263097A1
公开(公告)日：2006-11-23
申请号：US11256128
申请日：2005-10-24
申请人： Yuichi Akiyama , Takeshi Hoshida , Akira Miura , Hiroki Ooi , Jens Rasmussen , Kentaro Nakamura , Naoki Kuwata , Yoshinori Nishizawa , Tomoo Takahara
发明人： Yuichi Akiyama , Takeshi Hoshida , Akira Miura , Hiroki Ooi , Jens Rasmussen , Kentaro Nakamura , Naoki Kuwata , Yoshinori Nishizawa , Tomoo Takahara
IPC分类号： H04B10/04
CPC分类号： H04B10/5561 , H04B10/505 , H04B10/5051 , H04B10/5053 , H04B10/50575 , H04B10/50577 , H04B10/50595 , H04B10/5162 , H04B10/5165
摘要： A phase shift unit provides a prescribed phase difference (π/2, for example) between a pair of optical signals transmitted via a pair of arms constituting a data modulation unit. A low-frequency signal f0 is superimposed on one of the optical signals. A signal of which phase is shifted by π/2 from the low-frequency signal f0 is superimposed on the other optical signal. A pair of the optical signals is coupled, and a part of which is converted into an electrical signal by a photodiode. 2f0 component contained in the electrical signal is extracted. Bias voltage provided to the phase shift unit is controlled by feedback control so that the 2f0 component becomes the minimum.
摘要翻译： 相移单元在经由构成数据调制单元的一对臂发送的一对光信号之间提供规定的相位差（pi / 2）。 在其中一个光信号上叠加低频信号f 0 0。 将相位从低频信号f 0 0 <0>移位π/ 2的信号叠加在另一个光信号上。 一对光信号被耦合，其一部分由光电二极管转换成电信号。 提取包含在电信号中的2f 0 0分量。 通过反馈控制来控制提供给相移单元的偏压，使得2f 0 0分量成为最小。
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