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1. 发明专利

JP2011223619A Optical transmission equipment 有权
标题翻译：光学发射器
公开(公告)号：JP2011223619A
公开(公告)日：2011-11-04
申请号：JP2011134306
申请日：2011-06-16
申请人： Fujitsu Ltd , Yokogawa Electric Corp , 富士通株式会社 , 横河電機株式会社
发明人： OI HIROMI , ISHIKAWA JOJI , TANIMURA DAISUKE , ODAKA HIROTOSHI
IPC分类号： H04B10/61 , G02F1/01 , H04B10/07 , H04B10/2507 , H04B10/50 , H04B10/516 , H04B10/524 , H04B10/54 , H04B10/556 , H04B10/588
摘要： PROBLEM TO BE SOLVED: To provide a low-cost optical transmitter capable of surely compensating a delay shift between driving signals applied to a plurality of optical modulation parts.SOLUTION: The optical transmitter includes: a plurality of optical modulation parts connected in series through a covered polarization-holding optical fiber cord; a driving part corresponding to each of the optical modulation parts; a delay amount varying part configured to adjust a timing between driving signals to be applied to the respective optical modulation parts by imparting the variable delay amount to a modulation signal inputted to each driving part. The covered polarization-holding optical fiber cord having a thermal dependence coefficient of the optical signal propagation speed of ≤0.007 ps/°C/m is applicable.
摘要翻译：要解决的问题：提供一种能够可靠地补偿施加到多个光调制部分的驱动信号之间的延迟偏移的低成本光发射机。解决方案：光发射机包括：通过覆盖的偏振保持光纤线串联连接的多个光调制部分; 对应于每个光调制部分的驱动部分; 延迟量变化部，被配置为通过将可变延迟量赋予输入到每个驱动部的调制信号来调整要施加到各个光调制部的驱动信号之间的定时。具有≥0.007ps/℃/ m的光信号传播速度的热依赖系数的被覆极化保持光纤线是适用的。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2011109494A Data transmission system, terminal apparatus and data transmission method 有权
标题翻译：数据传输系统，终端设备和数据传输方法
公开(公告)号：JP2011109494A
公开(公告)日：2011-06-02
申请号：JP2009263564
申请日：2009-11-19
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SONE KYOSUKE , ISHIKAWA JOJI , KINOSHITA SUSUMU
IPC分类号： H04L12/44 , H04B10/27 , H04B10/272
CPC分类号： H04Q11/0067 , H04J14/026 , H04Q2011/0064 , H04Q2011/0083
摘要： PROBLEM TO BE SOLVED: To perform appropriate communication for each optical signal in a network system where optical signals having different transmission rates are mixed. SOLUTION: A time slot size is set for the purpose of communicating with a plurality of terminating apparatuses, respectively, and the set time slot size is used to set time allocation for communications with the plurality of terminating apparatuses. When setting the time slot size or the time allocation, meanwhile, an extinction period is provided between a time slot for at least one type of optical signals having a low transmission rate and a subsequent time slot. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：对混合有不同传输速率的光信号的网络系统中的每个光信号进行适当的通信。解决方案：为了与多个终端设备进行通信，设置时隙大小，并且使用设定的时隙大小来设置用于与多个终端设备的通信的时间分配。同时设置时隙大小或时间分配时，在具有低传输速率和后续时隙的至少一种类型的光信号的时隙之间提供消光周期。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2010252044A Relay apparatus, signal processing apparatus and optical communication system 有权
标题翻译：继电器，信号处理装置和光通信系统
公开(公告)号：JP2010252044A
公开(公告)日：2010-11-04
申请号：JP2009099197
申请日：2009-04-15
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SONE KYOSUKE , KAI TAKETAKA , ISHIKAWA JOJI , KINOSHITA SUSUMU
IPC分类号： H04B10/2507 , H04B10/272 , H04B10/29 , H04B10/291 , H04J14/00 , H04J14/02
CPC分类号： H04B10/2971 , H04B10/2914 , H04Q11/0067 , H04Q2011/0079 , H04Q2011/0086
摘要： PROBLEM TO BE SOLVED: To perform proper relay processing about each optical signal in a system in which optical signals having different transmission speeds are mixed. SOLUTION: A relay apparatus provided between optical transmission lines in which transmission is made in two opposite directions includes: a first interface 11 that branches an optical signal that is input in a first direction from one side of the optical transmission line, and directs the optical signal to a first path and a second path, the first path being a processing path of an optical signal having a first transmission speed, the second path being a processing path of an optical signal having a second transmission speed that is different from the first transmission speed; a processing section 12 that executes processing on an optical signal propagating through each of the paths in accordance with a corresponding transmission speed; and a second interface 13 that binds the first path and the second path of the optical signal on which the processing is executed by the processing section, by means of wavelength multiplexing and directs the signal to the other end of the optical transmission line. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：在混合有不同传输速度的光信号的系统中对每个光信号执行适当的中继处理。解决方案：设置在其中在两个相反方向上进行传输的光传输线之间的中继装置包括：第一接口11，其分支从光传输线的一侧沿第一方向输入的光信号;以及将光信号引导到第一路径和第二路径，第一路径是具有第一传输速度的光信号的处理路径，第二路径是具有不同于第二路径的第二传输速度的光信号的处理路径第一传输速度; 处理部分12，根据相应的传输速度对通过每条路径传播的光信号执行处理; 以及第二接口13，其通过波长复用来结合由处理部分执行处理的光信号的第一路径和第二路径，并将信号引导到光传输线的另一端。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2007295136A Polarized wave scrambler, optical add/drop multiplexer, optical path switching apparatus, and wavelength division multiplex optical transmission system 有权
标题翻译：极化波形扫描器，光学添加/多路复用器，光学路径切换设备和波长部分多路光传输系统
公开(公告)号：JP2007295136A
公开(公告)日：2007-11-08
申请号：JP2006118580
申请日：2006-04-21
申请人： Fujitsu Ltd , 富士通株式会社
发明人： NAKAMURA KENTARO , YUKI MASAHIRO , HOSHIDA GOJI , ISHIKAWA JOJI
IPC分类号： H04B10/07 , H04B10/2507 , H04B10/2569 , H04B10/27 , H04B10/29 , H04J14/00 , H04J14/02
CPC分类号： H04J14/0212 , H04B10/2569 , H04B10/532 , H04J14/0204 , H04J14/0206 , H04J14/0209 , H04J14/0227 , H04J14/0241 , H04J14/028 , H04J14/0283
摘要： PROBLEM TO BE SOLVED: To improve deterioration in transmission quality due to the PMD more than that of conventional technology. SOLUTION: A polarized wave scrambler disclosed herein is configured to include: a polarization state rotation section 2 for rotatingly driving a polarization state of a signal light; and a rotation speed control section 3 for controlling a rotation speed of the polarization state in the polarization state rotation section 2 on the basis of a modulation speed and a modulation system of the signal light and a value of the polarization mode dispersion in a transmission path through which the signal light is transmitted. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：由于PMD比传统技术更多地改善传输质量的劣化。解决方案：本文公开的偏振波加扰器被配置为包括：用于旋转驱动信号光的偏振状态的偏振状态旋转部分2; 以及旋转速度控制部3，用于根据调制速度和信号光的调制方式以及传输路径中的偏振模色散的值来控制偏振状态旋转部2的偏振状态的旋转速度通过该信号传输信号光。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2006246506A Optical transmission apparatus and optical transmission method 有权
标题翻译：光传输装置和光传输方法
公开(公告)号：JP2006246506A
公开(公告)日：2006-09-14
申请号：JP2006100265
申请日：2006-03-31
申请人： Fujitsu Ltd , 富士通株式会社
发明人： AKIYAMA YUICHI , ISHIKAWA JOJI , OOI HIROMI , WATANABE SHIGEKI
IPC分类号： G02F1/035 , H04B10/2507 , H04B10/2525 , H04B10/516 , H04B10/61
摘要： PROBLEM TO BE SOLVED: To provide an optical transmission apparatus and optical transmission method for performing dispersion compensation in optical fiber transmission, which achieve measurement of wavelength dispersion in simple configuration. SOLUTION: An optical modulation means 1 includes a wavelength chirping generation means 2, the wavelength chirping generation means 2 generates wavelength chirping corresponding to an increase rate of a driving voltage, and a driving voltage setting means 3 sets the range of the driving voltage to a range where an optical output increases/decreases. Only by inputting one pulse voltage from the driving voltage setting means 3 to the optical modulation means 1, a plurality of optical pulses with different wavelengths can be outputted from the optical modulation means 1. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种在简单配置中实现波长色散测量的光纤传输中进行色散补偿的光传输装置和光传输方法。解决方案：光调制装置1包括波长线性调频发生装置2，波长线性调频发生装置2产生对应于驱动电压的增加速率的波长线性调频，驱动电压设定装置3设定驱动的范围电压到光输出增加/减少的范围。只有通过从驱动电压设定装置3输入一个脉冲电压到光调制装置1，可以从光调制装置1输出具有不同波长的多个光脉冲。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2005269667A Optical transmission system, optical multiplexing system, and related peripheral technique 审中-公开
标题翻译：光学传输系统，光学多路复用系统及相关外设技术
公开(公告)号：JP2005269667A
公开(公告)日：2005-09-29
申请号：JP2005103384
申请日：2005-03-31
申请人： Fujitsu Ltd , 富士通株式会社
发明人： ISHIKAWA JOJI , NISHIMOTO HIROSHI , TOMOFUJI HIROAKI , OOI HIROMI , SEKIYA MOTOYOSHI
IPC分类号： H04B10/2507 , H04B10/071 , H04B10/2519 , H04B10/2525 , H04B10/2537 , H04B10/2563 , H04B10/29 , H04B10/291 , H04B10/02 , H04B10/16 , H04B10/17 , H04B10/18
CPC分类号： H04B2210/252 , H04B2210/254
摘要： PROBLEM TO BE SOLVED: To provide a technique for optimizing transmission conditions to achieve large-capacity transmission, and also to provide peripheral techniques for putting optical multiplexing that makes large-capacity transmission possible into practical use. SOLUTION: An optical transmitter 100 sets a relation between a signal optical wavelength λ s and a zero dispersion wavelength λ 0 to e.g., λ s 0 to cause wavelength dispersion and a dispersion value D of a dispersion compensation unit 112 at a receiver side is set to D>0 to carry out dispersion compensation. Thus, the intensity change in optical pulses transmitted through an optical fiber 102 is reduced to decrease waveform degradation due to the SPM effects. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种优化传输条件以实现大容量传输的技术，并且还提供用于将使得大容量传输成为实际应用的光复用的外围技术。解决方案：光发射机100将信号光波长λ s 和零色散波长λ 0 之间的关系设置为例如λ< SB> <λ 0 ，使接收侧的色散补偿单元112的色散值D设定为D> 0，进行色散补偿。因此，通过光纤102传输的光脉冲的强度变化减小，以减少由于SPM效应引起的波形劣化。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2005223945A Optical transmission system, optical multiplexing transmission system and related peripheral techniques 审中-公开
标题翻译：光传输系统，光复用传输系统及相关外设技术
公开(公告)号：JP2005223945A
公开(公告)日：2005-08-18
申请号：JP2005103665
申请日：2005-03-31
申请人： Fujitsu Ltd , 富士通株式会社
发明人： ISHIKAWA JOJI , NISHIMOTO HIROSHI , TOMOFUJI HIROAKI , OOI HIROMI , SEKIYA MOTOYOSHI
IPC分类号： H04J14/08
CPC分类号： H04B2210/252 , H04B2210/254
摘要： PROBLEM TO BE SOLVED: To provide clock extraction techniques in OTDM transmission. SOLUTION: Two optical signals of inverse phases are generated by an optical switch 241, modulated by external modulators 244, 245 and multiplexed by a multiplexer 246, and an optical multiplexed signal of a double transmission rate is generated and transmitted. In a receiving side clock extraction circuit 251, an amplitude difference is given to optical signals (g), (h) before multiplexing in order to directly extract clocks of the optical signals before multiplexing. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：在OTDM传输中提供时钟提取技术。解决方案：反相的两个光信号由光开关241产生，由外部调制器244,245调制并由多路复用器246复用，并且产生并传输双倍传输速率的光复用信号。在接收侧时钟提取电路251中，为了在多路复用之前直接提取光信号的时钟，在多路复用之前给予光信号（g），（h）的幅度差。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2004254333A Method for controlling wavelength dispersion and method for detecting amount of dispersion 有权
公开(公告)号：JP2004254333A
公开(公告)日：2004-09-09
申请号：JP2004099702
申请日：2004-03-30
申请人： Fujitsu Ltd , 富士通株式会社
发明人： OOI HIROMI , ISHIKAWA JOJI
IPC分类号： H04J3/00 , H04B10/07 , H04B10/2507 , H04B10/2519 , H04B10/2525 , H04B10/524 , H04B10/54 , H04B10/556 , H04B10/572 , H04J14/00 , H04J14/02 , H04J14/08 , H04B10/02 , H04B10/00 , H04B10/18
摘要： PROBLEM TO BE SOLVED: To supervise and control a wavelength dispersion of a transmission line which transmits an optical signal essentially not including a clock component such as a RZ signal and an OTDM signal, and control a dispersion of a transmission line without interrupting a system operation.
SOLUTION: When a bit rate of an optical signal is Bb/s, a band pass filter 42 extracts BHz component from a base band signal obtained by a receiver side light receiving device 40 and a variable dispersion compensation device 34 is controlled so as to minimize an intensity of the extracted signal. Since the control is performed under system operation, a low-frequency signal from an oscillator 52 is superimposed on a control signal of the variable dispersion compensation device 34. A band pass filter 60 extracts a low frequency component from a detection output of the BHz component and a phase of both its extracted signal and a low-frequency signal from an oscillator 52 is compared and an amount of a dispersion compensation is automatically controlled depending on the result.
COPYRIGHT: (C)2004,JPO&NCIPI

9. 发明专利

JP2002055025A INSTRUMENT AND METHOD FOR MEASURING WAVELENGTH DISPERSION 失效
公开(公告)号：JP2002055025A
公开(公告)日：2002-02-20
申请号：JP2000240594
申请日：2000-08-09
申请人： FUJITSU LTD
发明人： IFUKURO SADAO , ISHIKAWA JOJI
IPC分类号： G01J9/04 , G01M11/00 , G01M11/02 , G02F2/00
摘要： PROBLEM TO BE SOLVED: To provide a wavelength dispersion measuring instrument which is composed of a small number of components and will not cause the problem of optical SNR. SOLUTION: A low frequency fm is superposed on a high-frequency f1, and light of frequency fs is modulated and sent out to a transmission line 24 as wavelength-dispersion measurement light. On a reception side, local oscillation light is multiplexed with the wavelength-dispersion measurement light, and heterodyne detection is carried out. Side bands generated by the modulation of a frequency f2 in the heterodyne-detected wavelength-dispersion measurement light are extracted by band-pass filters 28-1 and 28-2, and their phase difference is detected, to calculate the wavelength dispersion value of the transmission line 24.

10. 发明专利

JPH1188261A SPREAD CONTROLLING METHOD AND ITS DEVICE 失效
公开(公告)号：JPH1188261A
公开(公告)日：1999-03-30
申请号：JP24690197
申请日：1997-09-11
申请人： FUJITSU LTD
发明人： ISHIKAWA JOJI , OOI HIROMI , KUWATA NAOKI
IPC分类号： G02B6/00 , H04B10/07 , H04B10/2507 , H04B10/2519 , H04B10/2525 , H04B10/255 , H04B10/293 , H04B10/02 , H04B10/18
摘要： PROBLEM TO BE SOLVED: To properly control the spectrum spread of an optical transmission line even when the power of an optical signal is large by deciding an optimum total spreading amount from the power of the optical signal, controlling the spreading amount so as to have a to a spread amount to the prescribed control point of the optical transmission line zero, and adding a spread amount equivalent to the optimum total spreading amount at the poststage of a control point. SOLUTION: A compensation amount control part 46 controls the spread compensating amount of a variable spread compensator 34 in a direction maximizing 40 GHz components with respect to a zero return signal and in a direction minimizing 40 GHz components with respect to OTDM (optical time division multiplexing) or a non-zero return waveform. A compensating amount control part 47 detects the power of the optical signal and at the time of an OTDM signal, decides a shifting amount by a nonlinear effect to set to a variable spread compensator 35. Thereby, an optimum spreading amount corresponding to the the power of the optical signal at the time is added to the optical signal controlled to make a zero spreading amount by the compensator 34 to enter an optical receiver 36.

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