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81. 发明授权

US09031418B2 Communication system, measuring apparatus, transmitting apparatus, and measurement method 有权
标题翻译：通信系统，测量装置，发送装置和测量方法
公开(公告)号：US09031418B2
公开(公告)日：2015-05-12
申请号：US13292430
申请日：2011-11-09
申请人： Masahiro Yuki , Takafumi Terahara , Norifumi Shukunami
发明人： Masahiro Yuki , Takafumi Terahara , Norifumi Shukunami
IPC分类号： H04B10/077 , H04B10/564 , H04B10/2507 , H04J14/06 , H04B10/50 , H04B10/532 , H04J14/02
CPC分类号： H04B10/0779 , H04B10/0775 , H04B10/2572 , H04B10/5057 , H04B10/532 , H04B10/564 , H04B2210/075 , H04J14/0204 , H04J14/0205 , H04J14/022 , H04J14/0275 , H04J14/0276 , H04J14/0283 , H04J14/06
摘要： A communication system including: a transmission apparatus configured to modulate a first light by using a first signal to be transferred and a second signal having a frequency different from a frequency of the first signal so as to generate a first optical signal, modulate a second light by using a third signal to be transferred and a fourth signal having a frequency different from a frequency of the third signal so as to generate a second optical signal, polarization-multiplex the first optical signal and the second optical signal, and transmit a polarization-multiplexed optical signal in which the first optical signal and the second optical signal are polarization-multiplexed, each of the first light and the second light being polarized; and a measuring apparatus configured to measure powers of the second signal and the fourth signal which are included in the polarization-multiplexed optical signal transmitted from the transmission apparatus.
摘要翻译：一种通信系统，包括：发送装置，被配置为通过使用要传送的第一信号和具有与所述第一信号的频率不同的频率的第二信号来调制第一光，以产生第一光信号，调制第二光通过使用要传送的第三信号和具有与第三信号的频率不同的频率的第四信号，以产生第二光信号，对第一光信号和第二光信号进行极化复用，第一光信号和第二光信号被偏振复用的多路复用光信号，第一光和第二光中的每一个都被偏振; 以及测量装置，被配置为测量包括在从发送装置发送的偏振复用光信号中的第二信号和第四信号的功率。

82. 发明授权

US09020366B2 Polarization multiplexing optical receiving device and polarization multiplexing optical receiving method 有权
标题翻译：偏振复用光接收装置和偏振复用光接收方法
公开(公告)号：US09020366B2
公开(公告)日：2015-04-28
申请号：US13977937
申请日：2012-01-20
申请人： Takeshi Okamoto
发明人： Takeshi Okamoto
IPC分类号： H04B10/06 , H04B10/60 , G02F1/015 , H04B10/67 , H04J14/06 , G02B27/28 , H04J14/02
CPC分类号： H04B10/60 , G02B27/283 , G02F1/015 , H04B10/2572 , H04B10/671 , H04J14/0221 , H04J14/06
摘要： Provided are a polarization multiplexing optical receiving device and a polarization multiplexing optical receiving method with which a mismatch of optical intensity between polarized signals accumulated in an optical transmission path of an optical receiving system can be compensated with high precision, and a high-quality polarized optical signal can be received.A polarization multiplexing optical receiving device according to the present invention includes: a semiconductor optical element for adjusting the optical signal intensity of each of a TE mode and a TM mode of a polarization-multiplexed optical signal; a polarization beam splitter for spectrally separating the polarization-multiplexed optical signal into the TE mode optical signal and the TM mode optical signal; and a control circuit for calculating the optical intensity ratio between the TE mode optical signal and the TM mode optical signal, which have had the optical signal intensity thereof adjusted by the semiconductor optical element and which have been spectrally separated by the polarization beam splitter, and for performing feedback control of the semiconductor optical element so that the calculated optical intensity ratio reaches a desired value.
摘要翻译：提供了一种偏振复用光接收装置和偏振复用光接收方法，其中可以高精度地补偿在光接收系统的光传输路径中积聚的极化信号之间的光强度的不匹配，以及高质量偏振光学可以接收信号。根据本发明的偏振复用光接收装置包括：半导体光学元件，用于调节偏振复用光信号的TE模式和TM模式中的每一个的光信号强度; 用于将偏振复用光信号频谱分离成TE模式光信号和TM模式光信号的偏振分束器; 以及控制电路，用于计算TE模光信号和TM模光信号之间的光强度比，其光信号强度由半导体光学元件调节并且由偏振分束器进行光谱分离;以及用于执行半导体光学元件的反馈控制，使得计算的光学强度比达到期望值。

83. 发明授权

US08594508B2 Optical transmission system 有权
标题翻译：光传输系统
公开(公告)号：US08594508B2
公开(公告)日：2013-11-26
申请号：US13137024
申请日：2011-07-15
申请人： Hisao Nakashima , Takeshi Hoshida , Takahito Tanimura , Toru Katagiri , Shoichiro Oda
发明人： Hisao Nakashima , Takeshi Hoshida , Takahito Tanimura , Toru Katagiri , Shoichiro Oda
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。

84. 发明申请

US20130259479A1 OPTICAL TRANSCEIVING APPARATUS, OPTICAL TRANSMITTING METHOD, AND OPTICAL TRANSMITTING DEVICE 有权
标题翻译：光学传输装置，光学传输方法和光学传输装置
公开(公告)号：US20130259479A1
公开(公告)日：2013-10-03
申请号：US13767119
申请日：2013-02-14
申请人： FUJITSU LIMITED
发明人： Noriaki MIZUGUCHI , Hiroaki Tomofuji
IPC分类号： H04B10/2507
CPC分类号： H04J14/06 , H04B10/2507 , H04B10/2572 , H04B10/40 , H04B10/50 , H04B10/5053
摘要： An optical transceiving apparatus includes an optical transmitting device performing polarization multiplexing on and transmitting as polarization multiplexed signal light, a first signal light of a predetermined polarization direction and a second signal light of a polarization direction different from the predetermined polarization direction; an optical receiving device receiving the signal light transmitted from the optical transmitting device through an optical transmission path; an acquiring unit acquiring information indicative of magnitude relation of intensity between the first signal light and the second signal light included in the signal light received by the optical receiving device; and a control unit controlling the magnitude relation of intensity between the first signal light and the second signal light included in the signal light output from the optical transmitting device, to be opposite to the magnitude relation indicated by the information acquired by the acquiring unit.
摘要翻译：光收发装置包括对偏振复用信号光进行偏振复用和偏振方向不同于预定偏振方向的第一信号光和偏振方向的第二信号光的光发送装置。光接收装置，其通过光传送路径接收从所述光发送装置发送的信号光; 获取单元，获取指示由所述光接收装置接收的所述信号光中包括的所述第一信号光和所述第二信号光之间的强度的大小关系的信息; 以及控制单元，其控制从所述光发送装置输出的所述信号光中包括的所述第一信号光与所述第二信号光之间的强度的大小关系与由所述获取单元获取的信息所指示的幅度关系相反。

85. 发明授权

US08543006B2 System and method for reducing polarization dependent loss 有权
标题翻译：减少偏振相关损失的系统和方法
公开(公告)号：US08543006B2
公开(公告)日：2013-09-24
申请号：US12879762
申请日：2010-09-10
申请人： Olga I Vassilieva , Youichi Akasaka
发明人： Olga I Vassilieva , Youichi Akasaka
IPC分类号： H04B10/00 , H04J14/06 , H04B10/12
CPC分类号： H04B10/2572 , H04J14/0201 , H04J14/0221 , H04J14/06
摘要： A method is provided for reducing polarization dependent loss experienced by an optical signal comprises monitoring a power level of a polarization multiplexed optical signal. The method further comprises detecting a power spike based on the monitored power. The power spike is induced by misalignment of a polarization component axis of the optical signal with a polarization dependent loss (PDL) axis of one or more network elements. The method further comprises rotating the polarization orientation of the optical signal such that the power spike is reduced.
摘要翻译：提供一种用于减少由光信号经历的偏振相关损耗的方法，包括监视偏振复用光信号的功率电平。该方法还包括基于所监视的功率来检测功率尖峰。功率尖峰由光信号的偏振分量轴与一个或多个网络元件的偏振依赖损耗（PDL）轴的未对准引起。该方法还包括旋转光信号的偏振取向使得功率尖峰减小。

86. 发明授权

US08380064B2 Depolarised WDM source 有权
标题翻译：非极化WDM源
公开(公告)号：US08380064B2
公开(公告)日：2013-02-19
申请号：US12293797
申请日：2007-03-15
申请人： Stephen Desbruslais , Richard Oberland , Stuart Robert Barnes , Stephen Michael Webb
发明人： Stephen Desbruslais , Richard Oberland , Stuart Robert Barnes , Stephen Michael Webb
IPC分类号： H04J14/02 , H04J14/06 , H04B10/18
CPC分类号： G02B6/278 , G02B6/274 , G02B6/2786 , H04B10/2572 , H04B10/506
摘要： A device and method for depolarising the total field of a wavelength division multiplexed (WDM) signal is provided. A polarization maintaining multiplexor combines a plurality of optical signals to form a polarized multiplexed signal. The multiplexed signal is then passed through a differential group delay (DGD) element adapted to modify the polarization state of one or more optical source signals within the multiplexed signal and thereby to at least partially depolarise the multiplexed signal.
摘要翻译：提供了一种用于去波分复用（WDM）信号的总场的装置和方法。偏振保持多路复用器组合多个光信号以形成偏振复用信号。然后，复用的信号通过适于修改多路复用信号内的一个或多个光源信号的偏振态的差分群延迟（DGD）元件，从而至少部分地去复用多路复用信号。

87. 发明授权

US08380019B2 Tunable dispersion compensator with minimum differential group delay 有权
标题翻译：具有最小差分群延迟的可调谐色散补偿器
公开(公告)号：US08380019B2
公开(公告)日：2013-02-19
申请号：US12941424
申请日：2010-11-08
申请人： Gregory M. Bubel , William R. Holland , David J. Kudelko , Yaowen Li , Paul S. Westbrook
发明人： Gregory M. Bubel , William R. Holland , David J. Kudelko , Yaowen Li , Paul S. Westbrook
IPC分类号： G02B6/00 , G02B6/34
CPC分类号： H04B10/2572 , G02B6/02109 , G02B6/02195 , G02B6/274 , G02B6/2932 , G02B6/29322 , G02B6/29394 , H04B10/2519
摘要： In a method and system for providing dispersion compensation in an optical system, there is coupled into the optical system at least one pathway into which there is connected a tunable chirped fiber Bragg grating, each such grating providing a respective tunable amount of dispersion. At least one respective DGD element is connected into the respective pathway for each such grating. The set of all such respective DGD elements in a given pathway introduces a bias differential group delay DGD(bias) having an absolute value that, for at least one tuning value of the grating, is substantially equal to differential group delay introduced by the grating.
摘要翻译：在用于在光学系统中提供色散补偿的方法和系统中，耦合到光学系统中的至少一个通路，其中连接有可调谐线性调频光纤布拉格光栅，每个这样的光栅提供相应的可调量的色散。对于每个这样的光栅，至少一个相应的DGD元件连接到相应的通路中。在给定路径中的所有这些相应的DGD元件的集合引入了具有绝对值的偏差差分群延迟DGD（偏置），对于光栅的至少一个调谐值，其基本上等于由光栅引入的差分群延迟。

88. 发明申请

US20130004162A1 OPTICAL TRANSMISSION SYSTEM, OPTICAL TRANSMITTING APPARATUS, AND OPTICAL RECEIVING APPARATUS 有权
标题翻译：光传输系统，光传输装置和光接收装置
公开(公告)号：US20130004162A1
公开(公告)日：2013-01-03
申请号：US13463387
申请日：2012-05-03
申请人： Takeo OSAKA
发明人： Takeo OSAKA
IPC分类号： H04B10/08 , H04J14/02
CPC分类号： H04J14/02 , H04B10/2572
摘要： An optical transmission system includes an optical transmitting apparatus that includes a polarization controller configured to change a polarization state of a signal light at an operating frequency included in a frequency range at which polarization trackability is obtained on a receiving side, based on a notified monitoring result, the optical transmitting apparatus being configured to output the signal light having the changed polarization state, and an optical receiving apparatus that is provided on the receiving side and includes a monitoring control unit configured to receive the signal light having the changed polarization state and monitor transmission quality of the received signal light, the optical receiving apparatus being configured to notify the optical transmitting apparatus of the monitoring result.
摘要翻译：一种光传输系统包括：光发送装置，其包括：偏振控制器，被配置为基于所通知的监视结果，改变在接收侧获得极化可追踪性的频率范围内包括的工作频率的信号光的偏振状态所述光发送装置被配置为输出具有改变的偏振状态的信号光;以及光接收装置，其设置在接收侧，并且包括监视控制单元，被配置为接收具有改变的偏振状态的信号光并监视发送接收信号光的质量，光接收装置被配置为向光发送装置通知监视结果。

89. 发明申请

US20120002270A1 OPTICAL TRANSMISSION SYSTEM 失效
标题翻译：光传输系统
公开(公告)号：US20120002270A1
公开(公告)日：2012-01-05
申请号：US13169136
申请日：2011-06-27
申请人： Yasushi SUGAYA , Takehiro Fujita
发明人： Yasushi SUGAYA , Takehiro Fujita
IPC分类号： H01S3/00
CPC分类号： H01S3/06762 , H01S3/06766 , H01S3/06775 , H01S2301/06 , H04B10/2572 , H04B10/2941
摘要： An optical transmission system includes an optical transmitter that sends signal light to a transmission path, an optical receiver that receives the signal light from the transmission path, and an optical amplifier that is provided on the transmission path and that amplifies the signal light, the optical amplifier being configured to control a gain characteristic of the optical amplifier such that a power of signal light having a wavelength included within a wavelength range in which polarization hole burning occurs is higher than a power of another signal light having a wavelength outside the wavelength range.
摘要翻译：一种光传输系统包括：向传输路径发送信号光的光发射机;接收来自传输路径的信号光的光接收机;以及设置在传输路径上并放大信号光的光放大器，放大器被配置为控制光放大器的增益特性，使得包含在发生极化孔燃烧的波长范围内的波长的信号光的功率高于具有波长范围外的波长的另一信号光的功率。

90. 发明申请

US20110255879A1 Electronic Nonlinearity Compensation For Optical Transmission Systems 有权
标题翻译：光传输系统的电子非线性补偿
公开(公告)号：US20110255879A1
公开(公告)日：2011-10-20
申请号：US12762127
申请日：2010-04-16
申请人： Chongjin Xie , René-Jean Essiambre
发明人： Chongjin Xie , René-Jean Essiambre
IPC分类号： H04B10/06
CPC分类号： H04B10/2572 , H04B10/2513 , H04B10/2543 , H04B10/60 , H04B10/611 , H04B10/6161 , H04B10/6162
摘要： Embodiments for optical communication are provided in which a receiver includes a digital signal processor configured to process a digital form of an input signal. In one embodiment, the digital signal processor includes a first electronic chromatic dispersion compensation module for compensating the digital form of the input signal, at least one nonlinearity compensation stage for serially compensating an output of the electronic chromatic dispersion compensation module; and a second electronic chromatic dispersion compensation module for compensating an output of the at least one nonlinearity compensation stage.
摘要翻译：提供了用于光通信的实施例，其中接收机包括被配置为处理数字形式的输入信号的数字信号处理器。在一个实施例中，数字信号处理器包括用于补偿输入信号的数字形式的第一电子色散补偿模块，用于串行补偿电子色散补偿模块的输出的至少一个非线性补偿级; 以及用于补偿所述至少一个非线性补偿级的输出的第二电子色散补偿模块。

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