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21. 发明专利

JP2013246348A Optical circuit and excitation light source for optical amplifier 有权
标题翻译：光放大器的光电路和激光源
公开(公告)号：JP2013246348A
公开(公告)日：2013-12-09
申请号：JP2012120813
申请日：2012-05-28
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： SUZUKI MASAYA , MIZUNO TAKAYUKI , HASHIZUME YASUAKI
IPC分类号： G02F1/35
摘要： PROBLEM TO BE SOLVED: To solve problems with fiber Raman amplifiers that, when excitation light is produced by polarizing and combining excitation light beams of a same wavelength for an excitation light source, an LD (laser diode) is required as the excitation light source for each orthogonal polarization, and an increase in number of LDs for the excitation light source leads to an increase in a mounting area and LD power consumption, and that utilization efficiency of optical output from a plurality of excitation light sources is extremely poor as the optical output power from the plurality of excitation light sources is used only for improving DOP (degree of polarization).SOLUTION: A fiber Raman amplifier excitation light source that uses an optical circuit is branched off to be commonly used by a plurality of transmission fibers or cores of a multi-core fiber. This allows for reduction of a mounting area for the excitation light source and power consumption by the excitation light source as well as for efficient use of optical power supplied from the excitation light source. It also allows for reduction in size of the excitation light source, initial cost, and running cost.
摘要翻译：要解决的问题：为了解决光纤拉曼放大器的问题，当通过偏振和组合用于激发光源的相同波长的激发光束产生激发光时，需要LD（激光二极管）作为激发光源，每个正交极化和激发光源的LD数量的增加导致安装面积和LD功率消耗的增加，并且来自多个激发光源的光输出的利用效率极差，因为光输出来自多个激发光源的功率仅用于改善DOP（偏振度）。解决方案：使用光电路的光纤拉曼放大器激发光源被分支，以被多个传输光纤或核心的通常使用多芯光纤。这允许减少激发光源的安装面积和激发光源的功率消耗以及有效利用从激发光源提供的光功率。它还允许减小激发光源的尺寸，初始成本和运行成本。

22. 发明专利

JP2012023781A Optical add/drop multiplexer 有权
标题翻译：光学添加/多路复用器
公开(公告)号：JP2012023781A
公开(公告)日：2012-02-02
申请号：JP2011237759
申请日：2011-10-28
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： HASHIZUME YASUAKI , SAWARA AKIO , TAKAHASHI TETSUO , KOMUKAI TETSUO , YAMAMOTO HIDETO
IPC分类号： H04J14/02 , H04B10/27 , H04B10/29 , H04J14/00
摘要： PROBLEM TO BE SOLVED: To provide a device for storing signal light in which channels having different optical frequency intervals are multiplexed and performing add/drop for the channel of a desired optical frequency interval.SOLUTION: An optical add/drop multiplexer comprises: drop means for applying wavelength separation to input signal light and outputting drop signal light from among the signal light subjected to the wavelength separation; and add means comprising at least a wavelength selection switch which inputs signal light obtained by removing the drop signal light from the input signal light or signal light obtained by applying coupler branching to the input signal light from an input port and sets the channel of a first optical frequency interval to a unit for wavelength selection, and wavelength composition means which is connected to another input port of the wavelength selection switch, sets the channel of a second optical frequency interval shorter than the first optical frequency interval to a unit for wavelength composition, and inputs add signal light.
摘要翻译：要解决的问题：提供一种用于存储信号光的装置，其中具有不同光频间隔的信道被多路复用，并对期望的光频间隔的信道执行加/减。光分插复用器包括：用于将波长分离施加到输入信号光并从经受波长分离的信号光中输出滴落信号光的放大装置; 以及添加装置，其至少包括波长选择开关，所述波长选择开关输入通过从输入信号光去除掉落信号光而获得的信号光，或者通过将来自输入端的输入信号光施加耦合器分支而获得的信号光，并设置第一波长选择单元的光频间隔和连接到波长选择开关的另一输入端口的波长合成装置将比第一光频间隔短的第二光频间隔的信道设定为波长合成的单位，并输入添加信号灯。版权所有（C）2012，JPO＆INPIT

23. 发明专利

JP2012022032A Interleaved filter 审中-公开
标题翻译：隔离过滤器
公开(公告)号：JP2012022032A
公开(公告)日：2012-02-02
申请号：JP2010157720
申请日：2010-07-12
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： INOUE YASUYUKI , WATANABE HIROSHI , HASHIZUME YASUAKI
IPC分类号： G02B6/12
摘要： PROBLEM TO BE SOLVED: To provide an interleaved filter for achieving a uniform characteristic in a desired wavelength band.SOLUTION: The interleaved filter includes an array waveguide 16 having waveguides with lengths different from each other by ΔL, a first slab waveguide 14 and a second slab waveguide 15 respectively connected to the both ends of the array waveguide 16, an input waveguide 11 connected to the first slab waveguide 14, a first output waveguide 12 and a second output waveguide 13 connected to the first slab waveguide 14, and a plurality of relay waveguides 18 connected to the second slab waveguide 15. The relay waveguides 18 are formed in pairs of two waveguides and two waveguides in each pair is optically connected.
摘要翻译：要解决的问题：提供一种用于在期望波长带中实现均匀特性的交错滤波器。解决方案：交错滤波器包括阵列波导16，阵列波导16具有彼此长度彼此不同ΔL的波导，分别连接到阵列波导16的两端的第一平板波导14和第二平板波导15，输入波导 11连接到第一平板波导14，连接到第一平板波导14的第一输出波导12和第二输出波导13以及连接到第二平板波导15的多个中继波导18.中继波导18形成在每对中的两个波导和两个波导对被光学连接。版权所有（C）2012，JPO＆INPIT

24. 发明专利

JP2011059588A Optical waveguide 审中-公开
标题翻译：光波导
公开(公告)号：JP2011059588A
公开(公告)日：2011-03-24
申请号：JP2009211954
申请日：2009-09-14
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： HASHIZUME YASUAKI , SAKAMAKI YOHEI , NASU YUSUKE , MIZUNO TAKAYUKI
IPC分类号： G02F1/01 , G02B6/12
摘要： PROBLEM TO BE SOLVED: To provide a grooved ridge structure type optical waveguide which has high reliability not to vary birefringence even in a high-temperature high-humidity test (85°C 85%) and not to vary a polarization dependent frequency difference (PDf) for a long period of time. SOLUTION: In the optical waveguide formed on a substrate, a pair of grooves are provided on a part of the optical waveguide in both sides of the optical waveguide. When such a groove interval that a birefringence value of the optical waveguide in a portion where the grooves are provided is lowest is denoted as W, the groove interval is equal to W. Or when a distance of depth of grooves is denoted as H, the groove interval is equal to H. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供即使在高温高湿度试验（85℃85％）下也具有高的可靠性而不改变双折射的沟槽脊结构型光波导，并且不改变偏振相关频率差异（PDf）很长一段时间。解决方案：在形成在基板上的光波导中，在光波导两侧的一部分光波导上设置一对槽。当在设置槽的部分中的光波导的双折射值的最小的这样的槽间隔表示为W时，槽间隔等于W.或者当槽深度的距离表示为H时，凹槽间距等于H.版权所有（C）2011，JPO＆INPIT

25. 发明专利

JP2010098545A Optical transmission apparatus 有权
标题翻译：光传输装置
公开(公告)号：JP2010098545A
公开(公告)日：2010-04-30
申请号：JP2008267937
申请日：2008-10-16
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： SAWARA AKIO , OKUBO YOHEI , YAMAMOTO HIDETO , HASHIZUME YASUAKI , TAKAHASHI TETSUO
IPC分类号： H04J14/00 , H04B10/27 , H04B10/275 , H04B10/29 , H04J14/02 , H04Q3/52
摘要： PROBLEM TO BE SOLVED: To provide an optical transmission apparatus which is excellent in expandability, and can economically achieve a multiwavelength, while keeping optical filtering characteristics good.
SOLUTION: The optical transmission apparatus includes a wavelength separation means which separates input signal light into first signal light in which the wavelength of a first kind is multiplexed, and second signal light in which the wavelength of a second kind is multiplexed, and outputs each signal light, a first light branch insert multiplexing means which performs add-drop to the first signal light output from the wavelength separation means, a second light branch insert multiplexing means which performs add-drop to the second signal light output from the wavelength separation means, and a wavelength multiplexing means which wavelength-multiplexes the signal light output from the first light branch insert multiplexing means and the signal light output from the second light branch insert multiplexing means, and outputs the wavelength-multiplexed signal light.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种光学滤波特性良好的可扩展性优异的光传输装置，能够经济地实现多波长。光传输装置包括：波长分离装置，其将输入信号光分离成第一种信号光，其中第一类型的波长被多路复用;以及第二信号光，其中第二类型的波长被多路复用;以及输出每个信号光;第一光分支插入复用装置，对从波长分离装置输出的第一信号光执行分插;第二光分支插入复用装置，对从波长输出的第二信号光进行加法，分离装置和波长多路复用从第一分支插入复用装置输出的信号光和从第二分支插入复用装置输出的信号光的波长多路复用装置，并输出波长多路复用的信号光。版权所有（C）2010，JPO＆INPIT

26. 发明专利

JP2010050649A Optical transmission device 有权
标题翻译：光传输设备
公开(公告)号：JP2010050649A
公开(公告)日：2010-03-04
申请号：JP2008212227
申请日：2008-08-20
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： YAMAMOTO HIDETO , KOMUKAI TETSUO , HASHIZUME YASUAKI , TAKARA HIDEHIKO , KUBOTA HIROKAZU
IPC分类号： H04B10/2507 , H04B10/27 , H04B10/29 , H04B10/40 , H04B10/50 , H04B10/60 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To provide an optical transmission device which has a wavelength demultiplexing means and controls crosstalk to wavelength-multiplexed signal light.
SOLUTION: The optical transmission device has a signal extraction means for extracting signal light which has a specified wavelength from signal light inputted from a first input port, a signal block means for extracting signal light that the specified wavelength signal light is blocked from signal light inputted from a second input port, and a wavelength demultiplexing means which has a means for wavelength-multiplexing the signal light extracted by the signal extraction means with the signal light extracted by the signal block means and outputting it from an output port. The transmission rate is configured for the signal extraction means and the signal block means so that an extinction ratio (ε
total ) is smaller than a specified value which is calculated from a desired OSNR penalty p.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：提供一种具有波长解复用装置并控制波长多路复用信号光的串扰的光传输装置。光传输装置具有信号提取装置，用于从从第一输入端口输入的信号光中提取具有指定波长的信号光;信号块装置，用于提取指定波长信号光被阻挡的信号光; 从第二输入端口输入的信号光和波长解复用装置，其具有用信号提取装置提取出的信号光进行波长多路复用的装置，并用信号块装置提取出的信号光，并从输出端口输出。对于信号提取装置和信号块装置配置传输速率，使得消光比（ε总计）小于根据期望的OSNR罚分p计算的指定值。版权所有（C）2010，JPO＆INPIT

27. 发明专利

JP2009162933A Waveguide-type optical circuit 有权
标题翻译：波导型光电路
公开(公告)号：JP2009162933A
公开(公告)日：2009-07-23
申请号：JP2007341066
申请日：2007-12-28
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： GO TAKASHI , MIZUNO TAKAYUKI , HASHIZUME YASUAKI , WATANABE TOSHIO
IPC分类号： G02B6/12 , G02B6/122
摘要： PROBLEM TO BE SOLVED: To provide a waveguide-type optical circuit which has excellent optical characteristics, by suppressing unnecessary TE/TM polarized light coupling caused by stress due to an electric wiring pattern. SOLUTION: The waveguide-type optical circuit has electric wiring nearby a waveguide and is such that the electric wiring nearby the waveguide has a symmetric wiring pattern with respect to the waveguide. Consequently, a main-axis direction of stress close to a waveguide core is made horizontal, and a main axis of birefringence is not made to incline in a projection plane (XY projection plane), perpendicular to the waveguide, and unnecessary TE/TM polarized light coupling can be restrained. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过抑制由于电布线图形引起的应力引起的不必要的TE / TM偏振光耦合，提供具有优异的光学特性的波导型光电路。解决方案：波导型光电路在波导附近具有电布线，并且使得波导附近的电布线相对于波导具有对称的布线图案。因此，靠近波导芯的应力的主轴方向是水平的，并且双折射主轴在垂直于波导的投影平面（XY投影平面）中不会倾斜，并且不必要的TE / TM偏振可以限制光耦合。版权所有（C）2009，JPO＆INPIT

28. 发明专利

JP2008177759A Optical delay detecting circuit for optical multi-value modulation signal 有权
标题翻译：光学多值调制信号的光学延迟检测电路
公开(公告)号：JP2008177759A
公开(公告)日：2008-07-31
申请号：JP2007008098
申请日：2007-01-17
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： OGUMA MANABU , GO TAKASHI , NASU YUUKAI , HASHIZUME YASUAKI
IPC分类号： H04B10/516 , H04B10/07 , H04B10/556 , H04B10/61
摘要： PROBLEM TO BE SOLVED: To provide an optical delay detection unit for an optical multi-value modulation signal for reducing the number of control circuits for controlling central wavelength to one, and for reducing the constraint of the control circuit itself by using a central wavelength monitor, and for reducing costs by simplifying an electric circuit. SOLUTION: This optical delay detection circuit for differentially receiving an input optical signal is characterized to branch the input optical signal into two which are given a delay time difference by a first optical delay part having a delay time difference fine adjustment function part, and to branch the optical signals into N sets (N is two or more) which are input to a pair of photoelectric conversion elements, wherein at least two sets of optical signals among the N sets of optical signals are given different delay time differences by a second optical delay part, and interfered by an optical multiplexing/demultiplexing circuit, and input to the pair of the photoelectric conversion elements. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供用于将多个控制中心波长的控制电路的数量减少到1的用于光学多值调制信号的光学延迟检测单元，并且为了通过使用中央波长监视器，并通过简化电路来降低成本。解决方案：用于差分接收输入光信号的光延迟检测电路的特征在于，通过具有延迟时差微调功能部分的第一光延迟部分将输入光信号分支为两个延迟时间差，并将光信号分支为N组（N为2个以上），输入到一对光电转换元件，其中在N组光信号中的至少两组光信号被给予不同的延迟时间差第二光延迟部分，并被光复用/解复用电路干扰，并输入到一对光电转换元件。版权所有（C）2008，JPO＆INPIT

29. 发明专利

JP2007232944A Optical signal processor 有权
标题翻译：光信号处理器
公开(公告)号：JP2007232944A
公开(公告)日：2007-09-13
申请号：JP2006053224
申请日：2006-02-28
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： HASHIZUME YASUAKI , OGUMA MANABU , KAMITOKU MASAKI , SAIDA TAKASHI , MIZUNO TAKAYUKI , TAKAHASHI HIROSHI
IPC分类号： G02B6/12
摘要： PROBLEM TO BE SOLVED: To provide an optical signal processor having less polarization dependency. SOLUTION: A Mach-Zehnder interferometer is composed of two multimode interferometers, two arm waveguides held between the multimode interferometers, and a polyimide wavelength plate inserted in the groove formed to part the two arm waveguides. The polyimide wavelength plate is constituted such that the main optical axis is inclined at 45° from the horizontal direction of the substrate and that the plate gives a phase difference equivalent to half the wavelength of a signal light wavelength to polarized waves propagating on the slow and fast axes. As a result, it serves a function as a polarization mode converter for converting TM polarized wave to TE (or TE polarized wave to TM). The two arm waveguides are made to gently approach the half wavelength plate, with a distance between the arm waveguides made close in the inserting part of the half wavelength plate, thereby suppressing influence by the in-plane dependency of the polarization conversion efficiency of the half wavelength plate. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有较小偏振依赖性的光信号处理器。解决方案：马赫 - 策德尔干涉仪由两个多模干涉仪组成，两个臂波导保持在多模干涉仪之间，一个聚酰亚胺波长板插入形成为两个臂波导部分的凹槽中。聚酰亚胺波长板被构成为使得主光轴从衬底的水平方向倾斜45°，并且该板给予等于信号光波长的波长的一半相对于在慢速上传播的偏振波的相位差，以及快轴。结果，其起到将TM偏振波转换为TE（或TE偏振波到TM）的偏振模式转换器的功能。使两个臂波导温和地接近半波片，臂波导之间的距离在半波片的插入部分中靠近，从而抑制了半波长板的偏振转换效率的面内依赖性的影响波片。版权所有（C）2007，JPO＆INPIT

30. 发明专利

JP2007163825A Waveguide type thermo-optical circuit 审中-公开
标题翻译：波导型热电路
公开(公告)号：JP2007163825A
公开(公告)日：2007-06-28
申请号：JP2005359813
申请日：2005-12-14
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： SOMA SHUNICHI , WATANABE TOSHIO , HASHIZUME YASUAKI , SHIBATA TOMOHIRO , TAKAHASHI HIROSHI
IPC分类号： G02F1/313 , G02B6/12 , G02F1/01
摘要： PROBLEM TO BE SOLVED: To provide techniques to impart an optical path difference with less wavelength dependence upon imparting an optical path difference into arm waveguides. SOLUTION: A waveguide type thermo-optical circuit includes directional couplers 11 and 14, two arm waveguides 12 and 13 and a thin film heater 15. In order to impart an optical path difference in the arm waveguides 12 and 13, the core of the arm waveguide 13 is formed with width different from that of the core of the arm waveguide 12, and optical effective distances in the arm waveguides 12, 13 are made different from each other by using a refractive index difference caused by the difference in the core widths of the arm waveguides. Thereby, the waveguide type thermo-optical circuit has less wavelength dependence of the refractive index difference. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供技术，以便在将光路差分赋予臂波导时赋予具有较小波长依赖性的光程差。解决方案：波导型热光电路包括定向耦合器11和14，两个臂波导12和13以及薄膜加热器15.为了在臂波导12和13中赋予光程差，芯臂波导13形成的宽度不同于臂波导管12的芯的宽度，并且通过使用由于波导12的差异引起的折射率差，使臂波导12,13中的光学有效距离彼此不同臂波导的芯宽度。因此，波导型热光电路具有较小的折射率差的波长依赖性。版权所有（C）2007，JPO＆INPIT

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