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1. 发明专利

JP2012105222A Optical transmission device, optical transmission system and optical transmission method 有权
标题翻译：光传输设备，光传输系统和光传输方法
公开(公告)号：JP2012105222A
公开(公告)日：2012-05-31
申请号：JP2010254281
申请日：2010-11-12
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SUZUKI YUICHI , OTANI TOSHIHIRO
IPC分类号： H04B10/07 , H04B10/079 , H04J14/00 , H04J14/02
CPC分类号： H04B10/07957 , H04J14/0221 , H04J14/0275
摘要： PROBLEM TO BE SOLVED: To provide an optical transmission device capable of detecting a wavelength shift of an optical signal.SOLUTION: An optical transmission device 1 includes: an extraction section 2 that extracts each optical signal from an optical signal into which a plurality of optical signals having different wavelengths is multiplexed; a detection section 3 that detects the wavelength of each of the optical signals extracted by the extraction section 2; a storage section 4 that stores the wavelength of each of the optical signals detected by the detection section 3; and a control section 5 that determines a trend of a change in the wavelength of each of the optical signals based on the wavelength of each of the optical signals detected by the detection section 3 and the wavelength of each of the optical signals stored by the storage section 4. The control section 5 determines that the wavelength is changed due to at least one of the extraction section 2 and the detection section 3 when the trend of a change is the same among at least two wavelengths out of the wavelength of each of the optical signals detected by the detection section 3. The optical transmission device 1 determines that an optical signal transmitting side device causes the change when the optical transmission device 1 determines that there is no problem with itself during occurrence of the change in the wavelength.
摘要翻译：要解决的问题：提供一种能够检测光信号的波长偏移的光传输装置。解决方案：光传输设备1包括：提取部分2，从多路复用具有不同波长的多个光信号的光信号中提取每个光信号; 检测部3，其检测由提取部2提取的每个光信号的波长; 存储由检测部3检测出的各光信号的波长的存储部4; 以及控制部分5，其基于由检测部分3检测到的每个光信号的波长和由存储器存储的每个光信号的波长来确定每个光信号的波长变化的趋势控制部分5确定由于至少一个提取部分2和检测部分3中的波长在波长的波长中的至少两个波长之间变化的趋势相同时，波长变化光传输装置1在光发送装置1发生波长变化时判断为自身没有问题的情况下，判定光信号发送侧装置发生变化。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2011029891A Optical receiver and method for optical reception 有权
标题翻译：光接收机和光接收方法
公开(公告)号：JP2011029891A
公开(公告)日：2011-02-10
申请号：JP2009173110
申请日：2009-07-24
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SUZUKI YUICHI , OTANI TOSHIHIRO
IPC分类号： H04B10/03 , H04B10/032 , H04B10/29 , H04B10/291 , H04B10/296
CPC分类号： H04B10/27 , H04B10/275 , H04B10/671 , H04Q11/0062 , H04Q2011/0081
摘要： PROBLEM TO BE SOLVED: To provide an optical receiving unit and method, suppressing optical surge of an optical amplifier.
SOLUTION: The optical receiving unit includes: an optical switch configured to switch between optical transmission channels in an analog manner; a switching speed changing means configured to change a transmission channel switching speed of the optical switch; and the optical amplifier configured to amplify light of the optical switch in a state subsequent to switching of the transmission channel. The optical receiving method includes steps of: changing the transmission channel switching speed of the optical switch; and switching the transmission channel of the optical switch in an analog manner.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：提供抑制光放大器的光浪涌的光接收单元和方法。光接收单元包括：光学开关，被配置为以模拟方式在光传输通道之间切换; 切换速度改变装置，被配置为改变光开关的传输通道切换速度; 并且所述光放大器被配置为在所述传输信道的切换之后的状态下放大所述光开关的光。光接收方法包括以下步骤：改变光开关的传输信道切换速度; 并以模拟方式切换光开关的传输通道。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2009003378A Mirror apparatus and optical switch 审中-公开
标题翻译：镜子装置和光开关
公开(公告)号：JP2009003378A
公开(公告)日：2009-01-08
申请号：JP2007166683
申请日：2007-06-25
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SUZUKI YUICHI
IPC分类号： G02B26/08
CPC分类号： G02B6/356 , G02B6/12019 , G02B6/3512 , G02B6/3558 , G02B6/3588
摘要： PROBLEM TO BE SOLVED: To provide a mirror apparatus capable of suppressing variance of transmission band and deterioration of the transmission band of every wavelength with a simple configuration. SOLUTION: The mirror apparatus includes: a mirror device 7 in which a plurality of movable mirrors 7a are arranged at regular intervals; and a mirror interface 5 which performs correction of an optical axis of each reflection object light to be reflected of the plurality of movable mirrors 7a so as to have the optical axis corresponding to arrangement position of the relevant movable mirror 7a and guides the reflection object light to the related movable mirror 7a. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供能够以简单的结构抑制传输频带的变化和每个波长的传输频带的劣化的镜装置。解决方案：镜装置包括：镜装置7，其中多个可移动镜7a以规则的间隔布置; 以及反射镜接口5，其对多个可动镜7a反射的每个反射物体光的光轴进行校正，以使光轴对应于相关可移动镜7a的布置位置并引导反射物体光到相关的可动镜7a。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2005062565A Integrated optical filter 审中-公开
标题翻译：集成光学滤波器
公开(公告)号：JP2005062565A
公开(公告)日：2005-03-10
申请号：JP2003293749
申请日：2003-08-15
申请人： Fujitsu Ltd , 富士通株式会社
发明人： MITAMURA NOBUAKI , NAGANUMA NORIHISA , FURUKAWA HIROYUKI , MARUYAMA SHINJI , NAGAEDA HIROSHI , SUZUKI YUICHI
IPC分类号： G02B6/30 , G02B6/12 , H01S3/10
摘要： PROBLEM TO BE SOLVED: To adjust filter characteristics of an integrated optical filter, using a small and simple constitution. SOLUTION: A plurality of optical waveguides 2 is arranged closely in parallel with an optical waveguide substrate 1. A groove 3 is formed on the optical waveguide substrate 1 along a direction of crossing the optical waveguides 2. An optical filter 4 is inserted into the groove 3, and the filter 4 is used commonly by the optical waveguides 2 to accomplish the integration. By serially connecting optical fibers 6 of the plurality of the optical waveguides 2 by splicing or by reflecting using a total reflection film 11, signal light beams are passed through the optical filter 4 a plurality number of times. The number of the passages of the optical filter 4 is adjusted by a means which is used to adjust the amount of insertion of the optical filter 4 into the groove 3, or by cutting the optical fibers 6 that connect a plurality of optical waveguides 2 at an arbitrary place so as to adjust the optical characteristics of the optical filter 4. Moreover, by varying the angles between the optical filter 4 and the optical waveguides 2, an integrated optical filter having various optical characteristics is constituted. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：使用小而简单的结构来调整集成滤光器的滤光器特性。解决方案：多个光波导2与光波导基板1平行地布置。沿着与光波导2交叉的方向在光波导基板1上形成有槽3。插入光学滤波器4 进入槽3，并且滤光器4由光波导2共同使用以实现一体化。通过拼接或通过使用全反射膜11的反射来串联多个光波导2的光纤6，使信号光通过滤光器4多次。光滤波器4的通道数通过用于调整滤光器4插入凹槽3的量的装置或通过切割将多个光波导2连接在一起的光纤6进行调节任意的位置，以调整滤光器4的光学特性。此外，通过改变滤光器4和光波导2之间的角度，构成具有各种光学特性的集成滤光器。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2013101393A Optical switch 审中-公开
标题翻译：光开关
公开(公告)号：JP2013101393A
公开(公告)日：2013-05-23
申请号：JP2013024128
申请日：2013-02-12
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SUZUKI YUICHI
IPC分类号： G02B26/08 , G02B6/12
摘要： PROBLEM TO BE SOLVED: To suppress deterioration of a transmission band and variance of the transmission band in every wavelength with a simple configuration.SOLUTION: An optical switch comprises: a mirror device 7 in which a plurality of movable mirrors 7a are arranged at regular intervals; and a mirror interface 5 which performs correction of an optical axis of reflection object light to be reflected by each of the movable mirrors 7a so as to have the optical axis corresponding to an arrangement position of the relevant movable mirror 7a and guides the reflection object light to the movable mirror 7a.
摘要翻译：要解决的问题：以简单的结构来抑制每个波长的传输频带的劣化和传输频带的变化。解决方案：光开关包括：镜装置7，其中多个可移动镜7a以规则的间隔布置; 以及反射镜接口5，其对每个可移动反射镜7a进行反射的反射物体光的光轴进行校正，以使光轴对应于相关可移动反射镜7a的布置位置并引导反射物体光到可动镜7a。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2009223079A Optical amplifier and method for driving optical amplifier 有权
标题翻译：光放大器和驱动光放大器的方法
公开(公告)号：JP2009223079A
公开(公告)日：2009-10-01
申请号：JP2008068741
申请日：2008-03-18
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SUZUKI YUICHI , SUKUNAMI NOBUFUMI
IPC分类号： G02F1/35 , H01S3/30
CPC分类号： H01S3/302 , H01S3/06725 , H01S3/094011 , H01S3/10069 , H04B10/2916
摘要： PROBLEM TO BE SOLVED: To provide an optical amplifier capable of preventing the occurrence of stimulated Brillouin scattering, and to provide a method of driving the optical amplifier.
SOLUTION: An LD 110 emits light having intensity in accordance with supplied driving power. A modulator 120 modulates the light output from the LD 110 based on an input modulation signal. A lumped Raman amplifier 130 amplifies the light modulated by the modulator 120. A driving part 140 drives the LD 110 by supplying the driving power, and inputs the modulation signal in the modulator 120 before the intensity of the light passing through the lumped Raman amplifier 130 exceeds intensity caused by the stimulated Brillouin scattering in the lumped Raman amplifier 130.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够防止受激布里渊散射发生的光放大器，并提供一种驱动光放大器的方法。解决方案：LD 110发射具有根据所提供的驱动功率的强度的光。调制器120基于输入调制信号调制从LD 110输出的光。集总拉曼放大器130放大由调制器120调制的光。驱动部分140通过提供驱动电力来驱动LD 110，并且在通过集中拉曼放大器130的光的强度之前将调制信号输入到调制器120中超过了集中拉曼放大器130中受激布里渊散射引起的强度。（C）2010年，JPO和INPIT

7. 发明专利

JP2009159290A Optical transmission apparatus and optical communication system 有权
标题翻译：光传输设备和光通信系统
公开(公告)号：JP2009159290A
公开(公告)日：2009-07-16
申请号：JP2007334945
申请日：2007-12-26
申请人： Fujitsu Ltd , 富士通株式会社
发明人： ONAKA YOSHINORI , SUZUKI YUICHI
IPC分类号： H04B10/2507 , H04B10/00 , H04B10/07 , H04B10/2537 , H04B10/2557 , H04B10/29 , H04J14/00 , H04J14/02
CPC分类号： H04J14/0221 , H04B10/077 , H04B2210/078
摘要： PROBLEM TO BE SOLVED: To provide an optical transmission apparatus which responds to an increase in the distance of relay zones and ensures high reliability, and to provide an optical communication system.
SOLUTION: The optical communication system is provided with an optical amplifier 16 for an OSC in an optical path of OSC light from an OSC transmitter 12 up to an optical multiplexer 13, in an optical transmission apparatus 10 arranged on the transmission side in each of the relay zones. It controls the optical amplifier 16 for the OSC so that the power of the OSC light Losc transmitted to a transmission path 1 may reach a previously set target value. In this manner, since the OSC light is amplified by an amplifying means different from that for main signal light at the time of transmission, an optical transmission apparatus 30 on the reception side can reliably receive the OSC light even when relay loss is heavy.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种响应中继区域的距离的增加并确保高可靠性的光传输装置，并提供光通信系统。解决方案：光通信系统在安装在传输侧的光传输装置10中设置有用于来自OSC发射机12的OSC光的光路中的OSC的光放大器16到光复用器13 每个中继区。它控制用于OSC的光放大器16，使得发送到传输路径1的OSC光Losc的功率可以达到预先设定的目标值。以这种方式，由于通过与发送时的主信号光不同的放大装置对OSC光进行放大，所以即使在继电器损耗较大的情况下，接收侧的光传输装置30也可以可靠地接收OSC灯。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2013257436A Optical amplifier and optical amplifier control method 有权
标题翻译：光放大器和光放大器控制方法
公开(公告)号：JP2013257436A
公开(公告)日：2013-12-26
申请号：JP2012133230
申请日：2012-06-12
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SUZUKI YUICHI
IPC分类号： G02F1/35 , H01S3/067 , H01S3/10 , H01S5/0687
CPC分类号： H04B10/2941 , H01S3/06754 , H01S3/094003 , H01S3/094096 , H01S3/09415 , H01S3/10023 , H01S3/10069 , H01S3/1022 , H01S3/1301 , H01S3/1305 , H01S3/1312 , H01S3/1317 , H01S3/302 , H01S5/06804 , H01S5/141 , H01S5/146 , H04B10/2916
摘要： PROBLEM TO BE SOLVED: To accurately maintain flatness of the gain deviation profile in the wavelength even when the environment temperature is changed.SOLUTION: An optical amplifier includes: a temperature measurement unit 111 that measures the temperature of wavelength fixing units 103a-103d and the temperature of a gain equalization unit 107 that equalizes gains of signal light on which the Raman amplification is performed using excitation light; a shift amount obtaining unit 112 that obtains a shift amount of the center wavelength of the excitation light corresponding to the measured temperature of the wavelength fixing units, from a first storage unit 108 which associates the temperature of the wavelength fixing units with the shift amount of the center wavelength of the excitation light corresponding to the temperature, and obtains a shift amount of the center wavelength of the wavelength band corresponding to the measured temperature of the gain equalization unit, from a second storage unit 109 which associates the temperature of the gain equalization unit with the shift amount of the center wavelength of the wavelength band corresponding to the temperature; and a control unit 113 that obtains the temperature of the wavelength fixing units which corresponds to a difference between two shift amounts, from the first storage unit 108, and controls the temperature of the wavelength fixing units adjusted by temperature adjustment units 110a-110d on the basis of the obtained temperature.
摘要翻译：要解决的问题：即使当环境温度改变时，也可以准确地保持波长的增益偏差分布的平坦度。解决方案：光放大器包括：温度测量单元111，其测量波长固定单元103a-103d的温度和增益均衡单元107的温度，其均衡使用激发光进行拉曼放大的信号光的增益; 移位量获取单元112，从将波长固定单元的温度与波长固定单元的温度相关联的第一存储单元108获得与波长固定单元的测量温度相对应的激发光的中心波长的偏移量，对应于该温度的激发光的中心波长，并从第二存储单元109获得与增益均衡单元的测量温度相对应的波长带的中心波长的偏移量，该第二存储单元109将增益均衡的温度单位具有与温度对应的波长带的中心波长的偏移量; 以及控制单元113，其从第一存储单元108获得对应于两个移动量之差的波长固定单元的温度，并且控制由温度调节单元110a-110d调节的波长固定单元的温度获得温度的基础。

9. 发明专利

JP2010123698A Optical amplifier and optical reception module 有权
标题翻译：光放大器和光接收模块
公开(公告)号：JP2010123698A
公开(公告)日：2010-06-03
申请号：JP2008294955
申请日：2008-11-18
申请人： Fujitsu Ltd , 富士通株式会社
发明人： NAITO MAYUMI , SUZUKI YUICHI , ONAKA YOSHINORI
IPC分类号： H01S3/10 , H04B10/07 , H04B10/294 , H04B10/40 , H04B10/50 , H04B10/60 , H04B10/69 , H04J14/00 , H04J14/02
CPC分类号： H04B10/2935 , H01S3/06758 , H01S3/1305 , H01S2301/04
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive optical amplifier and an optical reception module by which abrupt change in power level of received light can be compensated, and the occurrence state of noise light substantially does not change even if a functional component has variation in optical loss or the like. SOLUTION: In the optical reception module for single wavelength disposed in front of a receiver 25, the functional component 22 and a variable optical attenuator 23A are arranged on an optical path between front-stage and rear-stage optical amplification portions, and the optical attenuation amount of the variable optical attenuator 23A is brought under feedback control at a relatively slow speed so that the gain of the rear-stage optical amplification portion performing a high-speed ALC (Automatic Level Control) operation becomes constant, thereby compensating individual variation in optical loss that the functional component 22 has. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：为了提供廉价的光放大器和光接收模块，通过该模块可以补偿接收光的功率电平的突然变化，并且噪声光的出现状态即使功能部件具有光损耗的变化等。解决方案：在接收机25前方的单波长光接收模块中，功能部件22和可变光衰减器23A配置在前级和后级光放大部分之间的光路上，可变光衰减器23A的光衰减量以相对较慢的速度进行反馈控制，使得执行高速ALC（自动电平控制）操作的后级光放大部分的增益变得恒定，从而补偿个体功能部件22具有的光损耗的变化。版权所有（C）2010，JPO＆INPIT

10. 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

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