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1. 发明专利

JP2012095189A 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：JP2012095189A
公开(公告)日：2012-05-17
申请号：JP2010242110
申请日：2010-10-28
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SUGAYA YASUSHI
IPC分类号： H04B10/2507 , H04B10/2513 , H04B10/2569 , H04B10/29 , H04J14/00 , H04J14/02
CPC分类号： H04J14/0279 , H04B10/5059 , H04B10/516 , H04J14/026 , H04J14/0275
摘要： PROBLEM TO BE SOLVED: To provide restoration from expansion of an optical transmission system or deterioration of an optical transmission line with an inexpensive configuration.SOLUTION: The optical transmission device includes an optical signal generation section, a detection section, and a transmission rate determination section. The optical signal generation section generates an optical signal for data transmission. The detection section detects the effective number of clients. The transmission rate determination section determines a transmission rate of the optical signal based on the effective number of clients and the quality of the optical signal detected by an optical receiver.
摘要翻译：要解决的问题：为了提供光传输系统的扩展恢复或光传输线路的廉价配置的劣化。解决方案：光传输装置包括光信号产生部分，检测部分和传输速率确定部分。光信号生成部生成用于数据传输的光信号。检测部分检测客户端的有效数量。传输速率确定部分基于客户端的有效数量和由光接收器检测到的光信号的质量确定光信号的传输速率。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2009031796A Control method of optical fiber amplifier and optical transmission system 有权
标题翻译：光纤放大器和光传输系统的控制方法
公开(公告)号：JP2009031796A
公开(公告)日：2009-02-12
申请号：JP2008190515
申请日：2008-07-24
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SUGAYA YASUSHI , MURO SHINICHIRO , HAYASHI ETSUKO
IPC分类号： G02F1/35 , H01S3/06 , H01S3/063 , H01S3/094 , H01S3/0941 , H04B10/077 , H04B10/079 , H04B10/29 , H04B10/296 , H04B10/297 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To provide a control method of a bidirectional excitation type Raman amplifier which provides stabilized performance irrespective of the lump-loss on a transmission path fiber, and to provide an optical transmission system. SOLUTION: An optical fiber amplifier Raman-amplifies signal light propagating through the transmission path fiber 3 bidirectionally excited by supplying forward excitation light and backward excitation light to the transmission path fiber 3. The proportion of variation for signal optical output power to the variation of forward excitation optical power is obtained, while the supply of the backward excitation light to the transmission path fiber 3 is cut, the forward excitation optical power is optimized according to the proportion, and the backward excitation optical power is controlled according to the forward excitation optical power. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供双向激励型拉曼放大器的控制方法，其提供稳定的性能，而与传输路径光纤上的块损耗无关，并且提供光传输系统。解决方案：光纤放大器拉伸通过向传输路径光纤3提供正向激发光和反向激发光而双向激励的传输路径光纤3传播的信号光。信号光输出功率的变化比例获得正向激发光功率的变化，同时向传输路径光纤3提供反向激发光，同时根据比例优化正向激发光功率，并根据向前控制向后激发光功率激发光功率。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2008252645A Gain control apparatus, optical transmission device, and gain control method of optical amplifier 有权
标题翻译：增益控制装置，光传输装置和光放大器的增益控制方法
公开(公告)号：JP2008252645A
公开(公告)日：2008-10-16
申请号：JP2007092778
申请日：2007-03-30
申请人： Fujitsu Ltd , 富士通株式会社
发明人： ONAKA YOSHINORI , SUGITANI HIDEAKI , SUGAYA YASUSHI , HAYASHI ETSUKO
IPC分类号： H01S3/06 , H01S3/063 , H04B10/07 , H04B10/29 , H04B10/293 , H04B10/296 , H04B10/564 , H04B10/572 , H04J14/00 , H04J14/02
CPC分类号： H01S3/1301 , H01S3/06754 , H01S3/10015 , H01S3/1305 , H04B10/296
摘要： PROBLEM TO BE SOLVED: To suppress, at high speed, variation in a signal light level, in particular, variation in output light power of an optical amplifier caused by variation in the number of wavelengths of wavelength multiplexed signal light. SOLUTION: The present invention relates to an apparatus for controlling the gain of an optical amplifier 11, comprising: target gain calculation sections 16, 17 for calculating a value for which the gain (output) of signal light increases or decreases further as the number of wavelengths in wavelength multiplexed signal light is reduced, as a target gain of the optical amplifier 11; and a control signal output section 18 which outputs a control signal to the optical amplifier 11 so as to amplify the wavelength multiplexed signal light with the target gain calculated by the target gain calculation sections 16, 17. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：高速地抑制信号光电平的变化，特别是由波长多路复用信号光的波长数的变化引起的光放大器的输出光功率的变化。解决方案：本发明涉及一种用于控制光放大器11的增益的装置，包括：目标增益计算部分16,17，用于计算信号光的增益（输出）进一步增加或减小的值，进一步增加或减小作为光放大器11的目标增益，波长多路复用信号光的波长减少，以及控制信号输出部18，其将控制信号输出到光放大器11，以便以由目标增益计算部16,17计算出的目标增益来放大波长复用信号光。版权所有（C）2009 ，JPO＆INPIT

4. 发明专利

JP2006115545A Wavelength multiplex optical transmission system of remote excitation scheme 审中-公开
标题翻译：远程激励方案的波长多重光传输系统
公开(公告)号：JP2006115545A
公开(公告)日：2006-04-27
申请号：JP2005380362
申请日：2005-12-28
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SUGAYA YASUSHI , CHIKAMA TERUMI
IPC分类号： H04B10/07 , H04B10/29 , H04B10/296 , H04B10/297 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To enable properly adjusting the optical level of each channel multiplexed into a wavelength multiplexed light in an optical transmission system for remotely controlling an optical fiber amplifier for amplifying the wavelength multiplexed light.
SOLUTION: The wavelength multiplexed light to be output from a transmission station 10 is amplified by an EDF 47 and transmitted to a receiving station 20. An excitation light generated by a light source 71 provided in the transmission station 10 is supplied to the EDF 47. A control circuit 72 detects the number of channels multiplexed into the wavelength multiplexed light, and adjusts the excitation light power according to the number of channels.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了能够适当地调整用于远程控制用于放大波长复用光的光纤放大器的光传输系统中复用到波长复用光中的每个信道的光学水平。解决方案：从发送站10输出的波长复用光被EDF47放大并发送到接收站20.由发送站10中设置的光源71产生的激发光被提供给 EDF 47.控制电路72检测复用到波长复用光中的通道数，并根据通道数调节激发光功率。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2006033889A Multiple-wavelength light control device 有权
标题翻译：多波长光控制器件
公开(公告)号：JP2006033889A
公开(公告)日：2006-02-02
申请号：JP2005278201
申请日：2005-09-26
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SUGAYA YASUSHI
IPC分类号： H01S3/10 , H04B10/07 , H04B10/29 , H04B10/296 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To fix power of output light (multiple-wavelength light) under maximum value fixing control of only one wave having maximum power, and to approximately make uniform levels of channels. SOLUTION: A light level control means 24 is provided for controlling a light level of multiple-wavelength light to be propagated, a part of multiple-wavelength light outputted from the light level control means is branched, and each wavelength light contained in the multiple-wavelength light is selectively outputted in a variable wavelength optical filter 13. Each wavelength light outputted from the variable wavelength optical filter is optic/electric converted in an optic/electric conversion means 14, a maximum peak value of electric signals outputted from the optic/electric conversion means is detected in a peak value detection means 15, and a feedback signal is inputted to the light level control means 24 so that the maximum peak value may become a setting value. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了在仅具有最大功率的一个波的最大值固定控制下固定输出光（多波长光）的功率，并且大致使均匀的通道电平。
解决方案：提供一种用于控制要传播的多波长光的光级的光级控制装置24，从光级控制装置输出的多波长光的一部分被分支，并且每个波长的光包含在多波长光被选择性地输出到可变波长滤光器13中。从可变波长光学滤波器输出的每个波长的光在光/电转换装置14中进行光/电转换，从该光/电转换装置14输出的电信号的最大峰值在峰值检测装置15中检测到光/电转换装置，并且反馈信号被输入到光电平控制装置24，使得最大峰值可以变为设定值。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2004287307A Raman amplifier and system using the same 审中-公开
公开(公告)号：JP2004287307A
公开(公告)日：2004-10-14
申请号：JP2003081796
申请日：2003-03-25
申请人： Fujitsu Ltd , 富士通株式会社
发明人： MURO SHINICHIRO , SUGAYA YASUSHI
IPC分类号： G02F1/35 , H01S3/10 , H01S3/131 , H01S3/30 , H04B10/07 , H04B10/29 , H04B10/293 , H04B10/16 , H04B10/17
摘要： PROBLEM TO BE SOLVED: To provide a Raman amplifier capable of surely controlling the supply of the stimulation light by calculating the power of the amplified spontaneous Raman scattering light with high accuracy and performing the correction of a monitored value of the output signal light. SOLUTION: The Raman amplifier supplies the stimulation light Lp generated in a stimulation light supply section 20 to an optical transmission line 2 actually used in an operation prior to the start of the operation, measures the power of the amplified spontaneous Raman scattering (ASS) light generated in the optical transmission line 2 by the output light monitor section 20 and obtains the coefficient of a model expression for calculating the ASS light power based on the measurement result in an ASS light processing circuit 31. After the start of the operation, the Raman amplifier uses an ASS light calculation circuit 33 to calculate the ASS light power corresponding to the supply power of the stimulation light in accordance with the model expression applied with the above coefficient, performs the correction of the output light power measured in the output light power monitor section 20 and performs ALC, shutdown control, etc., based on the corrected output light power. COPYRIGHT: (C)2005,JPO&NCIPI

7. 发明专利

JP2004228404A Optical amplifier having polarization mode dispersion compensation function 有权
公开(公告)号：JP2004228404A
公开(公告)日：2004-08-12
申请号：JP2003015915
申请日：2003-01-24
申请人： Fujitsu Ltd , 富士通株式会社
发明人： ONAKA YOSHINORI , HAYASHI ETSUKO , SUGAYA YASUSHI
IPC分类号： G02F1/035 , H01S3/10 , H04B10/07 , H04B10/2507 , H04B10/2537 , H04B10/2569 , H04B10/29 , H04B10/293 , H04B10/02 , H04B10/16 , H04B10/17 , H04B10/18
CPC分类号： H04B10/291 , H04B10/2569
摘要： PROBLEM TO BE SOLVED: To provide a highly functional, miniaturized and low-cost optical amplifier which realizes a polarization mode dispersion (PMD) compensation function and an optical amplification function with single constitution. SOLUTION: The optical amplifier is constituted by being provided with a polarization control unit 10 for controlling the polarized state of inputted signal light Ls; a PMD generation part 20 for amplifying the signal light Ls simultaneously with the execution of PMD compensation by imparting group delay time difference between orthogonal polarization modes, when the signal light Ls from the polarization control part 10 is inputted to a polarization holding fiber to which a rate earth element is added, an excitation light supply 30 for supplying excitation light to the polarization holding fiber; a monitor 40 for monitoring a PMD generation state or the like of the signal light Ls from the PMD generation part 20; and a control unit 50 for controlling the polarization control unit 10 and the excitation light supply 30 on the basis of the monitored result of the monitor 40. COPYRIGHT: (C)2004,JPO&NCIPI

8. 发明专利

JP2003218804A RAMAN AMPLIFIER, WAVELENGTH MULTIPLEXED OPTICAL COMMUNICATION SYSTEM AND CONTROL METHOD FOR RAMAN AMPLIFICATION 审中-公开
公开(公告)号：JP2003218804A
公开(公告)日：2003-07-31
申请号：JP2002010298
申请日：2002-01-18
申请人： FUJITSU LTD
发明人： ONAKA YOSHINORI , SUGAYA YASUSHI , HAYASHI ETSUKO
IPC分类号： G02F1/35 , H01S3/067 , H01S3/094 , H01S3/13 , H01S3/131 , H01S3/16 , H01S3/30 , H01S5/14 , H04B10/07 , H04B10/29 , H04B10/294 , H04J14/00 , H04J14/02 , H04B10/16 , H04B10/17
摘要： PROBLEM TO BE SOLVED: To provide a Raman amplifier, a WDM optical communication system and a control method for Raman amplification which can optimize the amplification performance according to the change in the operating situation of the system so as to keep the transmission quality of WDM signal lights in a good condition. SOLUTION: In a Raman amplifier 10, a signal light S that propagated through the light transmission path 1 is Raman-amplified by multiplexing a plurality of beams of excitation light generated at an excitation light generating part 11 which has variable wavelength and power at an excitation light multiplexing part 12 having a variable transmission wavelength characteristic, and supplying the result to a light transmission path 1 through an excitation light supplying part 13. In the structure, the Raman amplifier is provided with an excitation light managing part 19 that controls the supplying condition of the excitation light P in synchronism with the change with the lapse of time in the operating situation of the system by adjusting the operation setting of the excitation light generating part 11 and the transmission wavelength characteristic of the excitation light multiplexing part 12. COPYRIGHT: (C)2003,JPO

9. 发明专利

JP2002076482A OPTICAL AMPLIFIER, OPTICAL AMPLIFICATION METHOD AND OPTICAL AMPLIFICATION SYSTEM 失效
公开(公告)号：JP2002076482A
公开(公告)日：2002-03-15
申请号：JP2000262080
申请日：2000-08-31
申请人： FUJITSU LTD
发明人： ONAKA YOSHINORI , TANAKA TOMOTO , HAYASHI ETSUKO , SUGAYA YASUSHI , KINOSHITA SUSUMU
IPC分类号： G02F1/35 , H01S3/06 , H01S3/067 , H01S3/0941 , H01S3/10 , H01S3/131 , H01S3/30 , H01S5/14 , H04B10/07 , H04B10/29 , H04B10/294 , H04J14/00 , H04J14/02 , H04B10/16 , H04B10/17
摘要： PROBLEM TO BE SOLVED: To provide a system for widening the band of an optical amplifier for increasing the wavelength multiplex number and constituting a wide transmission signal band. SOLUTION: Plural optical amplifiers of different optical amplification gain band widths are combined in blocks by using plural stimulation light sources so as to constitute a Raman amplifier covering the plural optical amplification gain bands. Thus, the band of the optical amplifier is widened.

10. 发明专利

JP2001119351A PLURAL BANDS LIGHT AMPLIFIER 失效
公开(公告)号：JP2001119351A
公开(公告)日：2001-04-27
申请号：JP29566199
申请日：1999-10-18
申请人： FUJITSU LTD
发明人： SUGAYA YASUSHI , TOMOFUJI HIROAKI , WATANABE RIKIYA
IPC分类号： H01S3/10 , H01S3/06 , H01S3/067 , H01S3/13 , H01S3/23 , H04B10/071 , H04B10/2507 , H04B10/29 , H04B10/294 , H04J14/00 , H04J14/02 , H04B10/17
摘要： PROBLEM TO BE SOLVED: To solve a problem caused by the crosstalk of a filter diving a band when light is amplified by dividing the band into a C-band and an L-band at the time of optical communication. SOLUTION: A filter for interrupting the light of a wavelength except for the amplification wavelength band of an optical amplifier is installed in a monitor when input light and output light are reflection-monitored.

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