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41. 发明专利

JP2011043575A Optical modulator 审中-公开
标题翻译：光学调制器
公开(公告)号：JP2011043575A
公开(公告)日：2011-03-03
申请号：JP2009190353
申请日：2009-08-19
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YAMAZAKI YASUSHI , GO TAKASHI , YAMADA TAKASHI , MINO SHINJI
IPC分类号： G02F1/035 , G02B6/12
摘要： PROBLEM TO BE SOLVED: To compactly achieve an integrated optical modulator having a means for accurately regulating an intensity ratio of an optical signal output from each of a plurality of optical modulation circuits and being coupled to an output port. SOLUTION: The optical modulator includes optical branch circuits (21-1 to 7) for branching the optical signal input to an input port into eight signals; the optical modulation circuits (24-1 to 8); and optical coupling circuits (26-1 to 7) for coupling the optical signal to be output to the output port. The optical modulator further includes MZI circuits (30-1 to 8), provided between the optical branch circuit and the optical modulation circuit, or between the optical modulation circuit and the optical coupling circuit and being capable of regulating an attenuation amount of intensity of light for regulating the optical intensity output from the optical modulation circuit. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：紧凑地实现具有用于精确地调节从多个光调制电路中的每一个输出的光信号的强度比并耦合到输出端口的装置的集成光调制器。解决方案：光调制器包括用于将输入到输入端口的光信号分支成八个信号的光分支电路（21-1至7）光调制电路（24-1〜8）; 以及用于将要输出的光信号耦合到输出端口的光耦合电路（26-1至7）。光调制器还包括设置在光分支电路和光调制电路之间或在光调制电路和光耦合电路之间的MZI电路（30-1至8），并且能够调节光强度的衰减量用于调节从光调制电路输出的光强度。版权所有（C）2011，JPO＆INPIT

42. 发明专利

JP2010191106A Optical wavelength multiplex signal monitor 有权
标题翻译：光波长多路信号监测器
公开(公告)号：JP2010191106A
公开(公告)日：2010-09-02
申请号：JP2009034430
申请日：2009-02-17
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KAMEI ARATA , OYAMA TAKAHARU , MIZUNO TAKAYUKI , GO TAKASHI
IPC分类号： G02B6/12
摘要： PROBLEM TO BE SOLVED: To provide an optical wavelength multiplex signal monitor excellent in cross talk characteristics with a small planarization excessive loss of an AWG while achieving a flat photosensitivity characteristics near signal light. SOLUTION: The optical wavelength multiplex signal monitor includes: an input waveguide; a first slab waveguide connected to the input waveguide; an arrayed waveguide made up of a plurality of waveguides connected to the first slab waveguide; a second slab waveguide connected to a plurality of waveguides of the arrayed waveguides; a plurality of output waveguides connected to the second slab waveguide; and a plurality of photodiodes optically coupled to the plurality of the output waveguides. The output waveguides constitute N groups of M output waveguides, M being an integer greater than one and N being an integer greater than one. Each of the photodiodes is optically connected to the M output waveguides of each group. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供串扰特性优异的光波长多路复用信号监视器，同时在信号光附近实现平坦的光敏特性，同时具有AWG的小的平坦化过度损耗。光波长多路复用信号监视器包括：输入波导; 连接到输入波导的第一平板波导; 由连接到第一平板波导的多个波导构成的阵列波导; 连接到阵列波导的多个波导的第二平板波导; 连接到第二平板波导的多个输出波导; 以及多个光耦合到多个输出波导的光电二极管。输出波导构成N组M个输出波导，M为大于1的整数，N为大于1的整数。每个光电二极管被光学连接到每组的M个输出波导。版权所有（C）2010，JPO＆INPIT

43. 发明专利

JP2010107377A Device and method for monitoring optical wavelength multiplex signal 有权
标题翻译：用于监测光波长多重信号的装置和方法
公开(公告)号：JP2010107377A
公开(公告)日：2010-05-13
申请号：JP2008280091
申请日：2008-10-30
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KAMEI ARATA , OYAMA TAKAHARU , MIZUNO TAKAYUKI , GO TAKASHI
IPC分类号： G01J3/18 , G02B6/12 , H04B10/07
摘要： PROBLEM TO BE SOLVED: To provide a device and a method for monitoring optical wavelength multiplex signal, capable of monitoring not only intensity of signal light from each channel but also a wavelength of the signal light and intensity of noise light. SOLUTION: In an array waveguide diffraction grating (AWG) including input waveguides to the number of M and output waveguides to the number of N, the output waveguides are arranged so that each transmission wavelength has an interval of Δλ, and the input waveguides are arranged so that each transmission wavelength has an interval of Δλ+u. In this case, a transmission wavelength from the j-th (j=1, 2, etc, M) input waveguide to the (i+M-j)-th (i=1, 2, etc, N-M+1) output waveguide is shifted by u at a time successively. By detecting light intensity outputted into a prescribed output waveguide, while switching an input waveguide of AWG, by utilizing the characteristic, light intensity transmitted through a prescribed transmission band width can be detected, while shifting a transmission center wavelength successively. Hereby, not only the intensity of the signal light from each channel but also a light intensity spectrum can be measured. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于监测光波长多路复用信号的装置和方法，不仅可以监测来自每个信道的信号光的强度，而且可以监测信号光的波长和噪声光的强度。解决方案：在包括输入波导数M和输出波导数为N的阵列波导衍射光栅（AWG）中，布置输出波导，使得每个透射波长具有Δλ的间隔，并且输入布置波导，使得每个透射波长具有Δλ+ u的间隔。在这种情况下，从第j（j = 1,2等，M）输入波导到（i + Mj）（i = 1,2等等，N-M + 1）输出的透射波长波导一次连续移动u。通过检测输出到规定的输出波导中的光强度，在通过利用该特性切换AWG的输入波导的同时，可以连续地移动发送中心波长来检测通过规定的发送带宽发送的光强度。因此，不仅可以测量来自每个通道的信号光的强度，还可以测量光强度谱。版权所有（C）2010，JPO＆INPIT

44. 发明专利

JP2010054624A Wavelength variable filter and optical signal monitor using the same 有权
标题翻译：波长可变滤波器和光信号监测器
公开(公告)号：JP2010054624A
公开(公告)日：2010-03-11
申请号：JP2008217282
申请日：2008-08-26
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： OYAMA TAKAHARU , GO TAKASHI , KAMEI ARATA , MIZUNO TAKAYUKI
IPC分类号： G02B6/12
摘要： PROBLEM TO BE SOLVED: To provide a wavelength variable filter that constitutes a light interference circuit with a variable transmission property and that achieves nondependability on temperature for ambient temperature. SOLUTION: The embodiment is characterized in that a heater 30 is mounted for locally heating an optical resin 21. The illustrated heater 30 is a rough configuration of it and, in actuality, an externally attachable heater capable of locally heating the optical resin is sufficient. Also, from the heater 30, an electric wiring 40 for applying an electric power is taken out. Meantime, for the purpose of making this AWG nondependent on temperature, a groove 20 is formed in a first slab waveguide 12 and the optical resin 21 is filled into the groove. However, by designing the light interference circuit constituting the AWG so that the groove 20 and the optical resin 21 satisfy an expression (1), nondependability on temperature is achieved. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种波长可变滤波器，其构成具有可变传输特性的光干涉电路，并且对于环境温度实现对温度的非依赖性。解决方案：本实施例的特征在于，加热器30被安装用于局部加热光学树脂21.所示的加热器30是其粗略构造，实际上是可以局部加热光学树脂的外部附加加热器足够了。此外，从加热器30取出用于施加电力的电线40。同时，为了使该AWG不依赖于温度，在第一平板波导12中形成有槽20，并且将光学树脂21填充到槽中。然而，通过设计构成AWG的光干涉电路，使得凹槽20和光学树脂21满足表达式（1），实现了对温度的不依赖性。版权所有（C）2010，JPO＆INPIT

45. 发明专利

JP2009204753A Optical modulator 有权
标题翻译：光学调制器
公开(公告)号：JP2009204753A
公开(公告)日：2009-09-10
申请号：JP2008045260
申请日：2008-02-26
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YAMAZAKI YASUSHI , GO TAKASHI , YAMADA TAKASHI , KANEKO AKEMASA
IPC分类号： G02F1/035 , G02F1/01
摘要： PROBLEM TO BE SOLVED: To constitute an integration type polarization wave multiplexing optical modulator outputting polarization wave multiplexing signal light to carrier light input of a single polarization wave from a single light source.
SOLUTION: The optical modulator comprising a plane light wave circuit includes a polarization wave converting circuit 102 converting and outputting a polarization wave surface of input light into a direction orthogonal to the polarization wave surface, a polarization wave synthesis circuit 103 outputting light inputted from a plurality of input ports and having polarization directions from a single output port, a first modulation circuit 101a connected to a first input port of the polarization wave synthesis circuit 103 via the polarization wave converting circuit 102 and a second modulation circuit 101b connected to a second input port of the polarization wave synthesis circuit 103 via no polarization wave converting circuit.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：构成将偏振波多路复用信号光输送到单个光源的单极化波的载波光的积分型偏振波多路复用光调制器。解决方案：包括平面光波电路的光调制器包括：偏振波转换电路102，将输入光的偏振波面转换并输出到与偏振波表面正交的方向;偏振波合成电路103，输出光从多个输入端口并且具有来自单个输出端口的偏振方向，经由极化波转换电路102连接到偏振波合成电路103的第一输入端口的第一调制电路101a和连接到偏振波合成电路102的第二调制电路101b 偏振波合成电路103的第二输入端口经由偏振波转换电路。版权所有（C）2009，JPO＆INPIT

46. 发明专利

JP2009198914A Optical demultiplexer 有权
标题翻译：光学解复器
公开(公告)号：JP2009198914A
公开(公告)日：2009-09-03
申请号：JP2008041984
申请日：2008-02-22
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YAMAZAKI YASUSHI , GO TAKASHI , YAMADA TAKASHI , KANEKO AKEMASA , SANO AKIHIDE
IPC分类号： G02B6/12
摘要： PROBLEM TO BE SOLVED: To provide an optical demultiplexer capable of separating sub-carriers at a high extinction ratio even if the sub-carrier interval is not equal to a WDM (wavelength division multiplexing) channel interval divided by an integer, in WDM transmission using an all-optical OFDM (orthogonal frequency division multiplexing) modulation method of two sub-carriers, and capable of dispensing with adjustment according to channels. SOLUTION: The optical demultiplexer includes a first optical demultiplexing element MZI 1 , a second optical demultiplexing element MZI 2 and a third optical demultiplexing element MZI 3 , whose free frequency intervals (FSR) of transmission spectrum are equal to one another. The second optical demultiplexing element and the third optical demultiplexing element are connected to different output ports of the first optical demultiplexing element. The FSR is the adjacent channel interval frequency of WDM signals, the interval frequency being divided by the integer, and is modulated by a plurality of sub-carriers having intervals Δf below the FSR in a WDM signal channel, and the sub-carriers are separated and output. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供能够以高消光比分离子载波的光解复用器，即使子载波间隔不等于WDM（波分复用）信道间隔除以整数，在 WDM传输采用全光OFDM（正交频分复用）调制方式的两个子载波，并能根据信道进行调整。解决方案：光解复用器包括第一光解复用元件MZI 1，第二光解复用元件MZI 2和第三光解复用元件MZI / SB>，其传输频谱的自由频率间隔（FSR）彼此相等。第二光解复用元件和第三光解复用元件连接到第一光解复用元件的不同输出端口。 FSR是WDM信号的相邻信道间隔频率，间隔频率除以整数，并且由在WDM信号信道中的FSR以下的间隔Δf的多个子载波进行调制，并且子载波被分离并输出。版权所有（C）2009，JPO＆INPIT

47. 发明专利

JP2009157114A Waveguide type optical interferometer circuit 审中-公开
标题翻译：波导型光纤干涉仪电路
公开(公告)号：JP2009157114A
公开(公告)日：2009-07-16
申请号：JP2007335334
申请日：2007-12-26
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： GO TAKASHI , MIZUNO TAKAYUKI , SOMA SHUNICHI , WATANABE TOSHIO
IPC分类号： G02F1/01
摘要： PROBLEM TO BE SOLVED: To provide a waveguide type optical interferometer circuit which is strong against manufacture errors.
SOLUTION: In the waveguide type optical interferometer circuit wherein respectively independent waveguide type optical interferometers are cascade connected in at least two stages, the waveguide type optical interferometers have waveguides provided with a desired optical path length difference, the waveguide of the longer optical path of one of the waveguide type optical interferometers in at least two stages and the waveguide of the longer optical path of the other one of the waveguide type optical interferometers in at least two stages relative to a center line drawn from the input side to the output side of the respective waveguide type optical interferometers are disposed in opposite directions.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供对制造误差强的波导型光学干涉仪电路。解决方案：在波导型光学干涉仪电路中，其中分别独立的波导型光学干涉仪在至少两级级联连接，波导型光学干涉仪具有提供期望的光程长度差的波导，较长光学的波导波导型光学干涉仪之一至少两级的波导型光波导路径，另一波导型光学干涉仪的较长光路的波导相对于从输入侧到输出端的中心线至少两级各个波导型光学干涉仪的侧面设置在相反的方向。版权所有（C）2009，JPO＆INPIT

48. 发明专利

JP2009111194A Thermal segmentation housing and optical module using the same 有权
标题翻译：使用相同的热分离外壳和光学模块
公开(公告)号：JP2009111194A
公开(公告)日：2009-05-21
申请号：JP2007282504
申请日：2007-10-30
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KASAHARA RYOICHI , GO TAKASHI
IPC分类号： H01S5/022 , G02B6/42
摘要： PROBLEM TO BE SOLVED: To provide a module that reduces rise in temperature of a part with a low elevated-temperature resistance and has a large allowable value of internal heat generation or a high upper limit value of operating environmental temperature.
SOLUTION: The housing includes an upper housing 1 and a lower housing 2 each having high thermal conductivity, and a heat insulation part 9 with lower thermal conductivity as compared with those housings. The upper housing 1 and the lower housing 2 are joined via the heat insulation part 9 to configure a single housing with the upper housing 1 and the lower housing 2 thermally decoupled. An electronic control board 7 is mounted on the upper housing 1 with the upper housing 1 and the electronic control board 7 thermally coupled. A PLC module 4 and a photoelectric conversion part 5 are mounted on the lower housing 2 via a mount 3 having high thermal conductivity with the lower housing 2 and the PLC module 4 thermally coupled. Presence of the heat insulation part 9 between the upper housing 1 and the lower housing 2 restrains thermal propagation between the upper housing 1 and the lower housing 2.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种降低具有低耐高温性的部件的温度升高并且具有大的内部发热容许值或高的工作环境温度上限值的模块。解决方案：壳体包括每个具有高导热性的上壳体1和下壳体2以及与这些壳体相比具有较低导热性的隔热部件9。上壳体1和下壳体2经由绝热部件9连接，以构造具有上壳体1和下壳体2热解耦的单个壳体。电子控制板7安装在上壳体1上，上壳体1和电子控制板7热耦合。 PLC模块4和光电转换部件5经由与下部外壳2和PLC模块4热耦合的具有高导热性的安装件3安装在下壳体2上。上壳体1和下壳体2之间的绝热部分9的存在限制了上壳体1和下壳体2之间的热传播。版权所有（C）2009，JPO＆INPIT

49. 发明专利

JP2007139826A Switching module 有权
标题翻译：切换模块
公开(公告)号：JP2007139826A
公开(公告)日：2007-06-07
申请号：JP2005329429
申请日：2005-11-14
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： GO TAKASHI , WATANABE TOSHIO , MIZUNO TAKAYUKI
IPC分类号： G02F1/313 , H03K17/00 , H04B10/032 , H04B10/07 , H04B10/25 , H04B10/27 , H04B10/275 , H04B10/278 , H04B10/297 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To provide a switching module which has at least one bidirectional wavelength path not affected by both a fault of an optical fiber transmission line and a fault of an optical branch insertion switch and is not affected by a wavelength path processed by another switching module. SOLUTION: The switching module includes a plurality of optical branch insertion switches (201W) including drop processing parts (211W) each of which receives signal light from an input port (In) and outputs the signal light to at least one of a first through port (ThrOut) and a drop port (Drop), and add processing parts (212W) which receives signal light from a second through port (ThrIn) and receives signal light from an add port (Add) and selects one of these inputs to output signal light from an output port (Out). With respect to a drop processing part and an add processing part disposed adjacently to each other, a wavelength of signal light passing the drop processing part and that passing the add processing part are different from each other. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种交换模块，其具有不受光纤传输线的故障和光分支插入开关的故障的至少一个双向波长路径的影响，并且不受波长路径的影响由另一个交换模块处理。解决方案：切换模块包括多个光分支插入开关（201W），其包括每个都从输入端口（In）接收信号光的液滴处理部件（211W），并将信号光输出到至少一个第一通过端口（ThrOut）和下降端口（Drop），并且添加从第二通过端口（ThrIn）接收信号光的处理部件（212W），并从附加端口（Add）接收信号光并选择这些输入之一从输出端口（Out）输出信号光。相对于彼此相邻设置的液滴处理部和添加处理部，通过液滴处理部的信号光的波长和通过加成处理部的信号光的波长彼此不同。版权所有（C）2007，JPO＆INPIT

50. 发明专利

JP2007067758A Control method of optical branching and inserting switch 审中-公开
标题翻译：光分路和插入开关控制方法
公开(公告)号：JP2007067758A
公开(公告)日：2007-03-15
申请号：JP2005250481
申请日：2005-08-31
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： GO TAKASHI , TAKAHASHI TETSUO
IPC分类号： H04B10/27 , H04B10/079 , H04B10/2507 , H04B10/275 , H04B10/278 , H04B10/296 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To provide a control method of an optical branching and inserting switch in a wavelength division multiple communication system, wherein occurrence of an optical surge is prevented during a transition operation so as to avoid erroneous discrimination.
SOLUTION: In the control method of the optical branching and inserting switch, the switch transits to a shut-down mode wherein an attenuation of a variable optical attenuator of the optical branching and inserting switch is fixed to a prescribed value after an optical power of each wavelength path included in a wavelength multiple signal light outputted from a node reaches a shut-down level or below and the state of the shut-down level or below is consecutive for a first time interval Ts or over, and the switch transits to an active mode wherein the attenuation of the variable optical attenuator is controlled after the optical power of the wavelength path reaches an activate level or over and a state of the activate level or over is consecutive for a second time interval Ts or over.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供波分多址通信系统中的光分路和插入开关的控制方法，其中在转换操作期间防止发生光波动，以避免错误的辨别。解决方案：在光分路和插入开关的控制方法中，开关转换到关闭模式，其中光分路和插入开关的可变光衰减器的衰减在光学分支和插入开关之后固定为规定值从节点输出的波长多信号光中包含的每个波长路径的功率达到关闭电平或更低，并且关闭电平或更低的状态在第一时间间隔Ts或以上是连续的，并且开关转接到激活模式，其中在波长路径的光功率达到激活电平或超过之后控制可变光衰减器的衰减，并且激活电平或以上的状态在第二时间间隔Ts或以上是连续的。版权所有（C）2007，JPO＆INPIT

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