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1. 发明专利

JP2008193257A Transmission system and transmission method 有权
标题翻译：传输系统和传输方法
公开(公告)号：JP2008193257A
公开(公告)日：2008-08-21
申请号：JP2007023369
申请日：2007-02-01
申请人： Fujitsu Ltd , 富士通株式会社
发明人： OOI HIROMI , MIURA AKIRA , HOSHIDA GOJI , NAKAMURA KENTARO , SUGAYA YASUSHI , GOTO RYOSUKE
IPC分类号： H04B10/2507 , H04B10/2525 , H04B10/2557 , H04B10/29 , H04B10/54 , H04B10/548 , H04B10/572 , H04B10/58 , H04J14/00 , H04J14/02
CPC分类号： H04J14/02 , H04B10/2513 , H04B10/2557 , H04J14/0201
摘要： PROBLEM TO BE SOLVED: To prevent waveform degradation (XPM degradation) of phase modulation signal even if mixing the phase modulation signal and intensity modulation signal on one and the same network.
SOLUTION: The wavelength multiplex transmission system adjusts the amount of dispersion compensation (the amount of dispersion compensation of an NZ-DSF100 and a DCF120) per span on the basis of a time slot when an intensity modulation signal transmitter 300 outputs the intensity modulation signal and a wavelength interval when a wavelength coupler 140 multiplexes the phase modulation signal (the phase modulation signal outputted from a phase modulation signal transmitter 200a) and the intensity modulation signal.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使在同一网络上混合相位调制信号和强度调制信号，也可防止相位调制信号的波形劣化（XPM降级）。解决方案：波长多路复用传输系统根据强度调制信号发射机300输出强度的时隙，根据时隙调整色散补偿量（NZ-DSF100和DCF120的色散补偿量）调制信号和波长耦合器140复用相位调制信号（从相位调制信号发送器200a输出的相位调制信号）和强度调制信号的波长间隔。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2012248958A Wavelength rearrangement method and node device 有权
标题翻译：波长递减方法和节点设备
公开(公告)号：JP2012248958A
公开(公告)日：2012-12-13
申请号：JP2011117287
申请日：2011-05-25
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SAKAMOTO TAKESHI , GOTO RYOSUKE
IPC分类号： H04B10/04 , H04B10/06 , H04B10/08 , H04B10/14 , H04B10/142 , H04B10/152 , H04B10/20 , H04J14/00 , H04J14/02
CPC分类号： H04J14/0204 , H04J14/0212 , H04J14/0271 , H04J14/0275
摘要： PROBLEM TO BE SOLVED: To shorten an instantaneous interruption time of an optical signal in wavelength rearrangement, in a wavelength rearrangement method.SOLUTION: In a wavelength rearrangement method of an optical wavelength multiplex transmission system, the supply destination of a first-channel electric signal to be converted to an optical signal of a first wavelength by a first optical transmitter is switched from the first optical transmitter to a second optical transmitter for conversion to an optical signal of a second wavelength different from the first wavelength, and the optical signal of the second wavelength outputted by the second optical transmitter is transmitted.
摘要翻译：要解决的问题：在波长重排方法中，缩短波长重排中的光信号的瞬时中断时间。解决方案：在光波长复用传输系统的波长重排方法中，由第一光发射机转换成第一波长的光信号的第一通道电信号的供给目的地从第一光学发射机到第二光发射机，用于转换为不同于第一波长的第二波长的光信号，并且传输由第二光发射机输出的第二波长的光信号。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2009044327A Wavelength division multiplex signal monitoring device and wavelength division multiplex transmission apparatus possessing the same 有权
标题翻译：波长段多路信号监测装置和波长段多路传输装置
公开(公告)号：JP2009044327A
公开(公告)日：2009-02-26
申请号：JP2007205607
申请日：2007-08-07
申请人： Fujitsu Ltd , 富士通株式会社
发明人： KACHITA YOSHITO , NAKAJIMA ICHIRO , SUGAYA YASUSHI , GOTO RYOSUKE
IPC分类号： H04B10/07 , H04B10/077 , H04B10/29 , H04B10/296 , H04J14/00 , H04J14/02
CPC分类号： H04B10/07955 , H04J14/0212 , H04J14/0221
摘要： PROBLEM TO BE SOLVED: To accurately determine a power level and a wavelength of a WDM signal at each channel, using the fewest light-receiving elements. SOLUTION: Information on a bit rate and a modulation method at each channel is informed to each WDM (Wavelength Division Multiplex) transmission apparatus, using an OSC (optical supervisory channel). A waveform search portion 72 refers to the waveform database 70 based on this information, and determines an approximated waveform according to the informed bit rate and the informed modulation method at each channel. A waveform approximation portion 74 approximates a measured value by the approximated waveform, and determines a power level and a wavelength. Tilting compensation is performed, based on the result. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：使用最少的光接收元件来精确地确定每个通道处的WDM信号的功率电平和波长。解决方案：使用OSC（光监控通道）向每个WDM（波分复用）发送装置通知每个信道上的比特率和调制方法的信息。波形搜索部分72基于该信息参考波形数据库70，并根据通知的比特率和每个信道的通知调制方法确定近似波形。波形近似部分74通过近似波形近似测量值，并确定功率电平和波长。根据结果进行倾斜补偿。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2014171232A Optical transmission device, and optical transmission system 有权
标题翻译：光传输设备和光传输系统
公开(公告)号：JP2014171232A
公开(公告)日：2014-09-18
申请号：JP2014087606
申请日：2014-04-21
申请人： Fujitsu Ltd , 富士通株式会社
发明人： GOTO RYOSUKE
IPC分类号： H04B10/291 , G02F1/35 , H04B10/2543
摘要： PROBLEM TO BE SOLVED: To provide an optical transmission device which improves transmission performance.SOLUTION: An optical transmission device is an optical transmission device in an optical transmission system for transmitting a signal light by using transmission fiber. The optical transmission device comprises: a power monitor; a calculating section; a transmission level determining section; and a power controlling section. The power monitor and the calculating section measure Raman gain efficiency of the transmission fiber. The transmission level determining section determines an input level of the signal light on the basis of the measured Raman gain efficiency. The power controlling section controls a level of the signal light to be input to the transmission fiber to realize the determined input level.
摘要翻译：要解决的问题：提供一种提高传输性能的光传输设备。解决方案：光传输设备是用于通过使用传输光纤传输信号光的光传输系统中的光传输设备。光传输装置包括：功率监视器; 计算部分发送电平确定部; 和功率控制部。功率监视器和计算部分测量传输光纤的拉曼增益效率。发送电平确定部分根据测得的拉曼增益效率来确定信号光的输入电平。功率控制部分控制要输入到传输光纤的信号光的电平以实现所确定的输入电平。

5. 发明专利

JP2010278903A Dispersion compensation apparatus, dispersion compensation method, light receiving device and light receiving method 有权
标题翻译：分散补偿装置，分散补偿方法，光接收装置和光接收方法
公开(公告)号：JP2010278903A
公开(公告)日：2010-12-09
申请号：JP2009131183
申请日：2009-05-29
申请人： Fujitsu Ltd , 富士通株式会社
发明人： YUKI MASAHIRO , TAKAHASHI TSUKASA , ONAKA YOSHINORI , SUKUNAMI NOBUFUMI , TSUZUKI TATSUYA , OTANI TOSHIHIRO , GOTO RYOSUKE
IPC分类号： H04B10/2507 , H04B10/2519
CPC分类号： H04B10/25133
摘要： PROBLEM TO BE SOLVED: To suppress optical signal deterioration caused by group delay ripple. SOLUTION: A dispersion compensation apparatus 100 includes a variable dispersion compensator 110, a dispersion quantity setter 121, and a center frequency shifter 122. The variable dispersion compensator 110 performs dispersion compensation on an optical signal in accordance with a group delay characteristic wherein bands outside an effective band are asymmetric. A dispersion quantity setter 121 sets a dispersion compensation quantity in the variable dispersion compensator 110. The center frequency shifter 122 shifts a center frequency of the effective band in the variable dispersion compensator 110 based on the dispersion compensation quantity set by the dispersion quantity setter 121. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：抑制由组延迟纹波引起的光信号劣化。解决方案：色散补偿装置100包括可变色散补偿器110，色散量设定器121和中心移频器122.可变色散补偿器110根据组延迟特性对光信号执行色散补偿，其中有效带外的频带是不对称的。色散量设定器121在可变色散补偿器110中设置色散补偿量。中心频移器122根据由色散量设定器121设定的色散补偿量，移动可变色散补偿器110中的有效频带的中心频率。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2010154104A Wdm transmission apparatus, optical add-drop multiplexer, and wdm transmission method 有权
标题翻译： WDM传输设备，光学增量多路复用器和WDM传输方法
公开(公告)号：JP2010154104A
公开(公告)日：2010-07-08
申请号：JP2008328547
申请日：2008-12-24
申请人： Fujitsu Ltd , 富士通株式会社
发明人： GOTO RYOSUKE , FUJITA TAKEHIRO
IPC分类号： H04J14/00 , H04B10/07 , H04B10/2507 , H04B10/294 , H04B10/296 , H04J14/02
CPC分类号： H04J14/0221 , H04B10/07955 , H04B10/2941 , H04J14/0212
摘要： PROBLEM TO BE SOLVED: To prevent OSNR degradation of each wavelength by correcting an optical signal component, without being influenced by the level of ASE light passing a filter for wavelength demultiplexing.
SOLUTION: A control parameter calculation part 110 calculates the level of the optical signal of a wavelength after wavelength demultiplexing by a filter of a demultiplexer, on the basis of the information on OSNR. An amplifier output level control unit 112 compensates the optical signal levels of all the wavelengths so as to reach a target level on the basis of the calculated level of the optical signal by a Preamplifier 301. A VOA control unit 111 corrects the deviation of the level of optical signal between respective wavelengths by VOAs 101a to 101c, on the basis of the calculated level of the optical signal.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过校正光信号分量来防止每个波长的OSNR劣化，而不受通过用于波长解复用的滤波器的ASE光的水平的影响。解决方案：控制参数计算部分110基于关于OSNR的信息，通过解复用器的滤波器来计算波长解复用后的波长的光信号的电平。放大器输出电平控制单元112根据计算出的前置放大器301的光信号电平来补偿所有波长的光信号电平，以达到目标电平.VOA控制单元111校正电平的偏差基于计算出的光信号的电平，通过VOA 101a至101c在各个波长之间的光信号。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2007266675A Optical transmission apparatus 有权
标题翻译：光传输装置
公开(公告)号：JP2007266675A
公开(公告)日：2007-10-11
申请号：JP2006085226
申请日：2006-03-27
申请人： Fujitsu Ltd , 富士通株式会社
发明人： GOTO RYOSUKE
IPC分类号： H04B10/516 , G02F1/383 , H04B10/508 , H04B10/524 , H04B10/54 , H04B10/556 , H04B10/58 , H04B10/61 , H04J14/00 , H04J14/02
CPC分类号： H04B10/506 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To provide an optical transmission apparatus for achieving broadcasting by WDM transmission using SC light.
SOLUTION: Intensity modulation is applied to short pulse light by a bit sequence pattern (distribution data) before the short pulse light is made incident onto a nonlinear medium, and the intensity modulated light is made incident onto the nonlinear medium. The pulse light corresponding to a bit value "0" is subjected to the intensity modulation so that a spectral width of the pulse light is not spread up to a prescribed spectral region by the nonlinearity when the pulse light is made incident onto the nonlinear medium, and the optical transmitter is brought into a state wherein an optical demultiplexer outputs no light, and the pulse light corresponding to a bit value "1" is subjected to the intensity modulation so that a spectral width of the pulse light is spread up to the prescribed spectral region by the nonlinearity when the pulse light is made incident onto the nonlinear medium, and the optical transmitter is brought into a state wherein the optical demultiplexer outputs light.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过使用SC光进行WDM传输来实现广播的光传输装置。解决方案：在短脉冲光入射到非线性介质上之前，通过位序列模式（分布数据）对短脉冲光进行强度调制，强度调制光入射到非线性介质上。对应于位值“0”的脉冲光进行强度调制，使得当脉冲光入射到非线性介质上时，脉冲光的光谱宽度不会通过非线性扩散到规定的光谱区域，并且光发送器进入其中光解复用器不输出光的状态，并且对应于位值“1”的脉冲光进行强度调制，使得脉冲光的光谱宽度扩展到规定的当脉冲光入射到非线性介质上时，通过非线性的光谱区域，并且光发射机进入光解复用器输出光的状态。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2004221968A Optical transmission system 审中-公开
公开(公告)号：JP2004221968A
公开(公告)日：2004-08-05
申请号：JP2003007265
申请日：2003-01-15
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SEKIYA MOTOYOSHI , GOTO RYOSUKE
IPC分类号： G02B6/293 , H04B10/079 , H04B10/2507 , H04B10/29 , H04B10/294 , H04J14/00 , H04J14/02 , H04B10/16 , H04B10/02 , H04B10/17 , H04B10/18
CPC分类号： H04B10/25073
摘要： PROBLEM TO BE SOLVED: To provide an optical transmission system capable of keeping flat passing characteristics even inside an optical signal modulation band. SOLUTION: A spectrum inside a modulation band for each channel of branched optical signals is monitored, the non-flatness of the passing characteristics of a transmission line is detected from the spectrum and thus the non-flatness to the optical signals is compensated. COPYRIGHT: (C)2004,JPO&NCIPI

9. 发明专利

JP2014099775A Optical transmission system and node device 有权
标题翻译：光传输系统和节点设备
公开(公告)号：JP2014099775A
公开(公告)日：2014-05-29
申请号：JP2012250689
申请日：2012-11-14
申请人： Fujitsu Ltd , 富士通株式会社
发明人： ISHII SHIGERU , GOTO RYOSUKE
IPC分类号： H04B10/27
CPC分类号： H04B10/0791 , H04B10/0775 , H04B10/0793 , H04B10/0795 , H04B10/07953 , H04Q11/0005 , H04Q2011/0043
摘要： PROBLEM TO BE SOLVED: To reduce time required for determining transmission propriety of a designated optical transmission path.SOLUTION: A node device comprises a parameter calculation unit and determination unit. When receiving path information for designating a path from a start point node to an end point node and a first parameter showing a signal deterioration amount, from an adjacent node, a parameter calculation unit generates a third parameter showing a signal deterioration amount of a transmission path between the start point node and the node device designated by the path information by updating the first parameter by using a second parameter showing a signal deterioration amount of a transmission path with the adjacent node. The determination unit determines transmission propriety of the path designated by the path information, on the basis of the third parameter generated by the parameter calculation unit and a fourth parameter showing a signal deterioration amount of a transmission path from the node device to the end point node through the path designated by the path information.
摘要翻译：要解决的问题：减少确定指定的光传输路径的传输合适性所需的时间。解决方案：节点设备包括参数计算单元和确定单元。当从相邻节点接收到用于指定从起点节点到终点节点的路径的路径信息和表示信号劣化量的第一参数时，参数计算单元生成表示传输路径的信号劣化量的第三参数通过使用示出与相邻节点的传输路径的信号劣化量的第二参数来更新第一参数，在起始点节点和由路径信息指定的节点装置之间。确定单元基于由参数计算单元生成的第三参数和表示从节点设备到终点节点的传输路径的信号劣化量的第四参数来确定由路径信息指定的路径的传输合理性通过路径指定的路径信息。

10. 发明专利

JP2012029336A Dispersion compensation device and dispersion compensation method 有权
标题翻译：分散补偿装置和分散补偿方法
公开(公告)号：JP2012029336A
公开(公告)日：2012-02-09
申请号：JP2011244037
申请日：2011-11-07
申请人： Fujitsu Ltd , 富士通株式会社
发明人： YUKI MASAHIRO , TAKAHASHI TSUKASA , ONAKA YOSHINORI , SUKUNAMI NOBUFUMI , TSUZUKI TATSUYA , OTANI TOSHIHIRO , GOTO RYOSUKE
IPC分类号： H04J14/02 , H04B10/2507 , H04B10/2513 , H04J14/00
摘要： PROBLEM TO BE SOLVED: To suppress degradation of optical signals due to group delay ripples.SOLUTION: A dispersion compensation device 100 includes a variable dispersion compensator 110, a variable filter 4010, a dispersion amount setting part 121, and a filter control part 4020. The variable dispersion compensator 110 executes dispersion compensation on optical signals by group delay characteristics where respective bands outside of an effective band are asymmetrical. The variable filter 4010 attenuates the respective bands which are outside of the effective band of the optical signals and affected by the group delay ripples, and filter characteristics including at least one of a center frequency of transmission characteristics and a band width are variable. The dispersion amount setting part 121 sets a dispersion compensation amount in the variable dispersion compensator 110. The filter control part 4020 controls the filter characteristics of the variable filter 4010 on the basis of the dispersion compensation amount set by the dispersion amount setting part 121.
摘要翻译：要解决的问题：抑制由于组延迟波纹引起的光信号的劣化。解决方案：色散补偿装置100包括可变色散补偿器110，可变滤波器4010，色散量设定部分121和滤波器控制部分4020.可变色散补偿器110通过群延迟对光信号执行色散补偿在有效频带之外的各个频带不对称的特征。可变滤波器4010衰减在光信号的有效频带之外并受组延迟波纹影响的各个频带，并且包括传输特性的中心频率和带宽中的至少一个的滤波器特性是可变的。色散量设定部分121在可变色散补偿器110中设置色散补偿量。滤光器控制部分4020基于由色散量设定部分121设置的色散补偿量来控制可变滤光器4010的滤光器特性。 P>版权所有（C）2012，JPO＆INPIT

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