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1. 发明专利

JP2012010279A Transmission device and transmission system 有权
标题翻译：传输设备和传输系统
公开(公告)号：JP2012010279A
公开(公告)日：2012-01-12
申请号：JP2010146691
申请日：2010-06-28
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SUKUNAMI NOBUFUMI , TSUZUKI TATSUYA
IPC分类号： H04B10/2507 , H04B10/07 , H04B10/2569 , H04B10/27 , H04B10/278 , H04B10/297 , H04B10/524 , H04B10/532 , H04B10/54 , H04B10/556 , H04J11/00 , H04J14/00 , H04J14/02 , H04J14/04 , H04J14/06
CPC分类号： H01S3/06766 , H01S3/0677 , H01S3/102 , H01S2301/04 , H04B10/2572 , H04B10/294
摘要： PROBLEM TO BE SOLVED: To provide a transmission device and a transmission system capable of preventing transmission quality from degrading while effectively utilizing an amplification band.SOLUTION: A transmitter multiplexes polarized wave multiplex signal light and non-polarized wave multiplex signal light individually by a multiplexer. An optical amplifier amplifies in a state in which polarized wave multiplex signal light is allocated to the short wavelength side of the amplification band. The optical amplifier amplifies signal light by using an amplification medium doped with a rare earth ion. Thus, an effect of preventing transmission quality from degrading while effectively utilizing the amplification band can be achieved.
摘要翻译：解决的问题：提供能够在有效利用放大频带的同时防止传输质量下降的传输装置和传输系统。解决方案：发射机通过多路复用器分别复用偏振波多路复用信号光和非偏振波多路复用信号光。光放大器在将偏振波多路复用信号光分配给放大频带的短波长侧的状态下放大。光放大器通过使用掺杂有稀土离子的放大介质来放大信号光。因此，可以实现在有效地利用放大频带的同时防止传输质量下降的效果。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2012009911A Osnr measurement device and optical communication system 有权
标题翻译： OSNR测量设备和光通信系统
公开(公告)号：JP2012009911A
公开(公告)日：2012-01-12
申请号：JP2010141120
申请日：2010-06-22
申请人： Fujitsu Ltd , 富士通株式会社
发明人： NAKAMURA KENTARO , SUKUNAMI NOBUFUMI
IPC分类号： H04B10/07 , G01J3/18 , G01J3/26 , H04B10/079 , H04B10/2507 , H04B10/29 , H04B10/54 , H04B10/548
CPC分类号： H04B10/07953
摘要： PROBLEM TO BE SOLVED: To provide an OSNR measurement device capable of accurately measuring OSNR of an optical signal during operation with a simple and economical configuration.SOLUTION: An OSNR measurement device 1 includes: a wavelength-selection section 12 having a variable passing band that selectively extracts an optical component corresponding to an optical signal wavelength to be measured from a measured light L incident into an input port 11 and conveys the optical component to a delay interference section 14; an optical detection section 15 for detecting power of delay interference light output from the delay interference section; and an OSNR calculating section 16 for calculating the OSNR at the optical signal wavelength to be measured based on a band width of the passing band of the wavelength-selection section and a detection result of the optical detection section.
摘要翻译：要解决的问题：提供一种能够以简单且经济的配置在操作期间精确测量光信号的OSNR的OSNR测量装置。解决方案：OSNR测量装置1包括：具有可变通带的波长选择部分12，其从入射到输入端口11中的测量光L选择性地提取与待测量的光信号波长对应的光学分量，将光学部件传送到延迟干涉部分14; 用于检测从延迟干扰部分输出的延迟干扰光的功率的光学检测部分15; 以及OSNR计算部分16，用于基于波长选择部分的通带的带宽和光学检测部分的检测结果来计算待测量的光信号波长的OSNR。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2009003148A Optical fiber reel, method for mounting optical fiber and optical module 有权
标题翻译：光纤卷，光纤安装方法和光模块
公开(公告)号：JP2009003148A
公开(公告)日：2009-01-08
申请号：JP2007163392
申请日：2007-06-21
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SUKUNAMI NOBUFUMI , MIURA KAZUNORI , HORIUCHI KOKI
IPC分类号： G02B6/00 , H01S3/06 , H01S3/10
CPC分类号： G02B6/4457 , H01S3/06704 , H01S3/06754 , H01S3/1608
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber reel which has a structure capable of saving more than space a conventional one. SOLUTION: The reel 100 for an optical fiber includes a first reel part for winding optical fibers on the circumference face 103 of a cylinder 101 and a second reel part disposed inside the cylinder 101 and functioning as a container 105 to house optical fibers in a ring bundle. Since a hybrid reel system is employed in which the outside of the cylinder includes a winding type reel part while the inside of the cylinder comprises a container housing type reel part, mounting efficiency of optical fibers is increased and space saving is achieved as a result. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有能够比常规节省空间的结构的光纤卷轴。解决方案：用于光纤的卷轴100包括用于将光纤缠绕在圆筒101的圆周面103上的第一卷轴部分和设置在圆筒101内部的第二卷轴部分，并用作容纳光纤的容器105 在一个环束。由于采用混合卷轴系统，其中气缸的外部包括卷绕型卷轴部分，而气缸的内部包括容器壳体型卷轴部分，因此提高了光纤的安装效率并节省了空间。版权所有（C）2009，JPO＆INPIT

4. 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

5. 发明专利

JP2010217911A Optical fiber connection part structure 有权
标题翻译：光纤连接件结构
公开(公告)号：JP2010217911A
公开(公告)日：2010-09-30
申请号：JP2010112125
申请日：2010-05-14
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SUKUNAMI NOBUFUMI , FURUKAWA HIROYUKI , SASAKI KEIKO
IPC分类号： G02B6/255 , G02B6/02 , G02B6/44
摘要： PROBLEM TO BE SOLVED: To achieve an optical fiber connection part structure which surely prevents coupling of the light radiated from a fusion-spliced connection part into the other optical fiber. SOLUTION: The optical fiber connection part structure has a fusion-spliced connection part S in which each one end of two optical fibers each having a core 1, a clad 2 and a UV coating part 3 is fusion-spliced connected. In the vicinity of the fusion-spliced connection part S, the outer peripheral face of a re-coating part 13 which re-coats the removed part of the UV coating part 3 is formed in such a shape that light L1' radiated from the fusion-spliced connection part S irregularly reflected. Thereby, the light L1' radiated from the fusion-spliced connection part S is surely prevented from coupling into the other optical fiber neighboring the outer side of the re-coating part 13. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了实现可靠地防止从熔接的连接部件辐射的光与另一光纤耦合的光纤连接部件结构。解决方案：光纤连接部分结构具有熔接连接部分S，其中每个具有芯1，包层2和UV涂覆部分3的两根光纤的每一端被熔接连接。在熔接连接部S附近，再涂布UV涂层部3的被除去部分的再涂布部13的外周面形成为从熔融体射出的光L1' 连接部S不规则地反射。因此，可靠地防止从熔接连接部S辐射的光L1'与再次涂布部13的外侧相邻的另一光纤耦合。（C）2010，JPO＆INPIT

6. 发明专利

JP2007005484A Optical amplifier and optical fiber 审中-公开
标题翻译：光放大器和光纤
公开(公告)号：JP2007005484A
公开(公告)日：2007-01-11
申请号：JP2005182425
申请日：2005-06-22
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SUKUNAMI NOBUFUMI , INAGAKI SHINYA
IPC分类号： H01S3/10
CPC分类号： H01S3/06754 , H01S3/0064 , H01S3/06725 , H01S3/06729 , H01S3/06758 , H01S3/094011 , H01S3/09415 , H01S2301/04 , H04B10/291 , H04B2210/003 , H04B2210/256
摘要： PROBLEM TO BE SOLVED: To improve the quality of WDM transmission by reducing four light-wave mixture. SOLUTION: An optical fiber 11 has positive wavelength dispersion in a signal bandpass, and becomes an optical amplification medium which amplifies a wavelength multiplexing signal in which two or more wavelengths are multiplexed. An excitor 12 enters the excitation light into the optical fiber 11. In order to obtain the phase mismatching property of a wavelength to be transmitted, the optical fiber 11 has positive wavelength dispersion as a wavelength dispersion in a signal bandpass where the difference gets larger between the signal frequency which is the frequency of a signal to be amplified and the zero dispersion frequency wherein the wavelength dispersion becomes zero, so that it may function as an optical amplification medium capable of suppressing the generation of four light-wave mixture. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过减少四个光波混合来提高WDM传输的质量。解决方案：光纤11在信号带通中具有正波长色散，并且成为放大其中多个波长的波长多路复用信号的光放大介质。激光器12将激发光进入光纤11.为了获得要透射的波长的相位失配特性，光纤11具有作为信号带通中的波长色散的正波长色散，其中差异在作为要放大的信号的频率的信号频率和波长色散变为零的零色散频率，使得其可以用作能够抑制四种光波混合的产生的光学放大介质。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2006166478A Optical amplifier 有权
标题翻译：光放大器
公开(公告)号：JP2006166478A
公开(公告)日：2006-06-22
申请号：JP2006003063
申请日：2006-01-10
申请人： Fujitsu Ltd , 富士通株式会社
发明人： TOMOFUJI HIROAKI , MAEDA TAKUJI , SUKUNAMI NOBUFUMI , TSUZUKI TATSUYA , SUZUKI YUICHI
IPC分类号： H01S3/0941 , H01S3/094 , H01S3/10 , H01S3/131 , H04B10/032 , H04B10/077 , H04B10/079 , H04B10/275 , H04B10/29 , H04B10/293 , H04B10/296 , H04B10/299 , H04B10/564 , H04B10/572 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To stabilize the output level of each signal light, in an optical amplifier for amplifying wavelength multiplexed light. SOLUTION: A wavelength multiplexed light is amplified by an EDF 41a and an EDF 41b. The gains of the EDF 41a and the EDF 41b are held at a constant value by an AGC (automatic gain control) circuit 43a and an AGC circuit 43b, respectively. The loss of a variable attenuator 42 provided between the EDF 41a and the EDF 41b is controlled by an ALC circuit 44 so that the output light power is held at a prescribed value. In the AGC circuit 43a, an ASE correction value predetermined is added to the detection value of an input light power obtained by a light receiving element 51a. An AGC control is made by using the input power value to which the ASE correction value is added. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了稳定每个信号光的输出电平，用于放大波长复用光的光放大器。解决方案：波长复用光被EDF 41a和EDF 41b放大。 EDF 41a和EDF 41b的增益分别由AGC（自动增益控制）电路43a和AGC电路43b保持在恒定值。设置在EDF 41a和EDF 41b之间的可变衰减器42的损耗由ALC电路44控制，使得输出光功率保持在规定值。在AGC电路43a中，将预定的ASE校正值与由光接收元件51a获得的输入光功率的检测值相加。通过使用添加了ASE校正值的输入功率值来进行AGC控制。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2005150435A Optical amplifier and control method thereof 审中-公开
标题翻译：光放大器及其控制方法
公开(公告)号：JP2005150435A
公开(公告)日：2005-06-09
申请号：JP2003386456
申请日：2003-11-17
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SUKUNAMI NOBUFUMI , TANAKA TOMOTO , NAITO MAYUMI
IPC分类号： H01S3/10 , H01S3/067 , H01S3/094 , H01S3/13 , H01S3/131 , H04B10/07 , H04B10/29 , H04B10/294 , H04B10/16 , H04B10/17
CPC分类号： H01S3/06754 , H01S3/094003 , H01S3/10015 , H01S3/1301 , H01S3/1305 , H01S2301/02
摘要： PROBLEM TO BE SOLVED: To permit keeping of a set gain and an output power even when a temperature or a power of a signal input is changed. SOLUTION: The generating amount of ASE is changed by the temperature of the optical amplifier unit and the power of a signal input whereby the fluctuation of the gain is invited. A power of an input and a power of an output are respectively detected by the photodetector 412 of input side and the photodetector 422 of output side while the temperature of the optical amplifier 431 is detected by a temperature detecting unit 433. A control unit 404 corrects the generating amount of the ASE through AGC control based on the detected input/output powers and temperatures. Driving of an excitation LD 432 is controlled by a result of the correction to retain the gain of the optical amplifier 431 in constant. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使当信号输入的温度或功率改变时，也允许保持设定的增益和输出功率。
解决方案：ASE的发生量由光放大器单元的温度和信号输入的功率改变，从而增加增益的波动。在由温度检测单元433检测光放大器431的温度的同时，由输入侧的光电检测器412和输出侧的光检测器422分别检测输入的功率和输出的功率。控制单元404校正基于检测到的输入/输出功率和温度，ASE通过AGC控制的发生量。激励LD 432的驱动由校正的结果控制，以将光放大器431的增益保持恒定。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2004048071A Multiple wavelength optical amplifier 有权
标题翻译：多波长光学放大器
公开(公告)号：JP2004048071A
公开(公告)日：2004-02-12
申请号：JP2003364051
申请日：2003-10-24
申请人： Fujitsu Ltd , 富士通株式会社
发明人： YAMANE KAZUO , SHIMA MICHIKAZU , KAWASAKI YUMIKO , TAGAWA KENJI , INAGAKI SHINYA , SUKUNAMI NOBUFUMI
IPC分类号： H01S3/10
摘要： PROBLEM TO BE SOLVED: To reduce a difference in amplification gain of amplified and output signal light of each wavelength with respect to a multiple wavelength optical amplifier that amplifies and outputs a multiple wavelength optical signal. SOLUTION: The present apparatus is equipped with an optical amplification means such as an EDF 1 that amplifies and outputs a multiple wavelength optical signal which multiplexes optical signals of different wavelengths λ 1 -λ N ; a signal light-stop detection means that separates a multiple wavelength optical signal entering the light amplification means by a wavelength separation filter (WDM filter 29) into optical signals of respective wavelengths to detect whether or not an optical signal exists; an output signal light intensity detection means that separates an amplified and outputted multiple wavelength optical signal into optical signals of respective wavelengths by a wavelength separation filter (WDM filter 30) to detect intensity of an optical signal of each wavelength; and a light output controlling means that controls the output level of the optical amplification means based on information about signal light-stop and information about optical signal intensity of each wavelength in order that a difference of an inter-wavelength level of a multiple wavelength optical signal may become small. COPYRIGHT: (C)2004,JPO
摘要翻译：解决的问题：为了减少相对于放大并输出多波长光信号的多波长光放大器的每个波长的放大和输出信号光的放大增益的差异。解决方案：本装置配备有诸如EDF 1的光放大装置，其放大并输出多路复用不同波长的光信号的多波长光信号λ ñ; 信号光停止检测装置，将通过波长分离滤波器（WDM滤波器29）进入光放大装置的多波长光信号分离成各波长的光信号，以检测是否存在光信号; 输出信号光强度检测装置，通过波长分离滤波器（WDM滤波器30）将放大并输出的多波长光信号分离成各波长的光信号，以检测每个波长的光信号的强度; 以及光输出控制装置，其基于关于信号光停止的信息和关于每个波长的光信号强度的信息来控制光放大装置的输出电平，以便多波长光信号的波长间水平差可能会变小版权所有（C）2004，JPO

10. 发明专利

JP2015039180A ＯＳＮＲ測定装置および光通信システム有权
标题翻译： OSNR测量设备和光通信系统
公开(公告)号：JP2015039180A
公开(公告)日：2015-02-26
申请号：JP2014186112
申请日：2014-09-12
申请人：富士通株式会社 , Fujitsu Ltd
发明人： NAKAMURA KENTARO , SUKUNAMI NOBUFUMI
IPC分类号： H04B10/075 , G01J3/18 , G01J3/32 , G01J9/02 , G01M11/00 , G02F2/00
摘要：【課題】運用中の光信号のOSNRを簡易かつ安価な構成によって精度良く測定することのできるOSNR測定装置を提供する。【解決手段】OSNR測定装置1は、可変の通過帯域を有する波長選択部12により、入力ポート11に与えられる被測定光Lから測定対象の信号光波長に対応した光成分を選択的に取り出して遅延干渉部14に与え、該遅延干渉部から出力される遅延干渉光のパワーを光検出部15で検出し、波長選択部の通過帯域の帯域幅および光検出部の検出結果を基に、OSNR演算部16が測定対象の信号光波長におけるOSNRを算出する。【選択図】図4
摘要翻译：要解决的问题：提供一种OSNR测量装置，其能够以简单和经济的配置在操作期间精确地测量光信号的OSNR。解决方案：OSNR测量装置1包括：具有可变通带的波长选择部分12，从入射到输入端口11的测量光L选择性地提取对应于要测量的光信号波长的光学部件，并将光学部件传送到延迟干扰部分14; 用于检测从延迟干扰部分输出的延迟干扰光的功率的光学检测部分15; 以及OSNR计算部分16，用于基于波长选择部分的通带的带宽和光学检测部分的检测结果来计算待测量的光信号波长的OSNR。

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