专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2015022086A マルチコア光ファイバ有权
标题翻译：多芯光纤
公开(公告)号：JP2015022086A
公开(公告)日：2015-02-02
申请号：JP2013149048
申请日：2013-07-18
申请人：日本電信電話株式会社 , Nippon Telegr & Teleph Corp
发明人： SAKAMOTO YASUSHI , MORI TAKAYOSHI , YAMAMOTO TAKASHI , WADA MASAKI , NAKAJIMA KAZUHIDE , YAMAMOTO FUMIHIKO
IPC分类号： G02B6/04 , G02B6/02
摘要：【課題】本発明は、2個以上のコアが配置された光ファイバにおいて、群遅延差の低減と空間利用効率の両立を図ることを目的とする。【解決手段】本発明は、2個以上のコアが配置された光ファイバであって、光ファイバ中を伝搬するモード間の群遅延差が?450ps/km以下、かつコア間のクロストークが−25dB以上となる様にコア間隔距離Dとモードフィールド半径Wの比D/Wを制御する。【選択図】図1
摘要翻译：要解决的问题：兼容地实现了具有两个或更多个核心的光纤中的组延迟差和空间利用效率的降低。解决方案：本发明是一种配置有两个或更多个核的光纤，其中，控制芯间隔距离D与模场半径W的D / W，使得在光纤中传播的模场之间的组延迟差成为等于或不高于±450ps / km，并且在核变得等于或不小于25db。

2. 发明专利

JP2014035457A Connection mechanism for optical fiber and its method 审中-公开
标题翻译：光纤连接机制及其方法
公开(公告)号：JP2014035457A
公开(公告)日：2014-02-24
申请号：JP2012176703
申请日：2012-08-09
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： SAITO KOTARO , NAKAJIMA KAZUHIDE
IPC分类号： G02B6/24
摘要： PROBLEM TO BE SOLVED: To provide a less-loss, convenient, and inexpensive butting connection technique for an optical fiber, which can also be applied in a hole structure optical fiber, and uses a refraction index conformity agent of a non-liquid.SOLUTION: A refraction index conformity agent 3 of a non-liquid is arranged in a place that is in contact with the connection end of an optical fiber 1 fixed to a core adjustment member 11, and the connection end of an optical fiber 2 gripped by a gripping member 12 is inserted into the core adjustment member 11. The optical fiber 2 is bent by moving the grip member 12. While the connection end of the optical fiber 2 is pressed against the connection end of the optical fiber 1 via the refraction index conformity agent 3, the optical fibers 1 and 2 are fixed. At this time, the hardness H of the refraction index conformity agent 3 is controlled as a function of a bend width L required for satisfactory connection loss. Also, the bend fiber length Lby which required pressing force is obtained is controlled as a function of a bend width L. Alternatively, a bend fiber length Lby which a bend loss of 0.1 dB or less is obtained is controlled as a function of the bend width L.
摘要翻译：要解决的问题：为了提供一种也可应用在孔结构光纤中的光纤的损耗小，便利且便宜的对接连接技术，并且使用非液体的折射率一致性试剂。：将非液体的折射率合格试剂3配置在与固定在芯调节部件11上的光纤1的连接端部接触的位置，将光纤2的连接端夹持构件12插入到芯调节构件11中。光纤2通过移动握持构件12而弯曲。当光纤2的连接端经由折射率一致性被按压在光纤1的连接端代理3，光纤1和2是固定的。此时，折射率一致性试剂3的硬度H被控制为满足连接损耗所需的弯曲宽度L的函数。此外，获得需要按压力的弯曲光纤长度Lby被控制为弯曲宽度L的函数。或者，获得弯曲损耗为0.1dB或更小的弯曲光纤长度Lby作为弯曲的函数宽度L.

3. 发明专利

JP2013167759A Optical fiber connection mechanism and method thereof 有权
标题翻译：光纤连接机构及其方法
公开(公告)号：JP2013167759A
公开(公告)日：2013-08-29
申请号：JP2012030916
申请日：2012-02-15
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： SAITO KOTARO , NAKAJIMA KAZUHIDE
IPC分类号： G02B6/36
摘要： PROBLEM TO BE SOLVED: To provide a low-loss, simple, and inexpensive butt joint technique for an optical fiber using a solid-state reactive index matching agent, which is applicable to even optical fibers having an air-hole structure.SOLUTION: An optical fiber 32 is inserted to an aligning member 13 fixed to one end of a base member 42 in a state where a holding member 41 is disposed in such a position that an interval between the holding member 41 and the aligning member 13 is equal to a prescribed bending fiber length, and the optical fiber 32 is held by the holding member 41 at the moment when an end surface at the front end of the optical fiber butts against a prescribed solid-state refractive index matching agent 31, and the optical fiber 32 is bent by moving the holding member 41 toward the aligning member 13 till a spacer 43 having the same length as a prescribed bend width is brought into contact with the aligning member 13, whereby a pressing force of 0.1 N or more is applied between the end surface of the optical fiber 32 and the refractive index matching agent 31 to achieve satisfactory connection characteristics.
摘要翻译：要解决的问题：为了提供使用固体反应性指数匹配剂的光纤的低损耗，简单且廉价的对接技术，其适用于具有气孔结构的均匀光纤。解决方案：将光纤32插入到固定在基座部件42的一端的对准部件13，其中保持部件41配置在保持部件41与对准部件13的间隔等于在光纤前端的端面与规定的固态折射率匹配剂31相对的时刻，光纤32由保持部件41保持，光纤32 通过将保持构件41朝向对准构件13移动直到具有与规定弯曲宽度相同长度的间隔件43与对准构件13接触而弯曲，由此施加0.1N以上的按压力在光纤32的端面与折射率匹配剂31之间，以实现令人满意的连接特性。

4. 发明专利

JP2013125064A Cutoff wavelength-controlled optical fiber and optical fiber cable 有权
标题翻译：切割波长控制光纤和光纤电缆
公开(公告)号：JP2013125064A
公开(公告)日：2013-06-24
申请号：JP2011272269
申请日：2011-12-13
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： GOTO YUKIHIRO , NAKAJIMA KAZUHIDE
IPC分类号： G02B6/02
摘要： PROBLEM TO BE SOLVED: To achieve both reduction of a bend loss and increase of a mode field diameter (MFD) while suppressing an increase in cutoff wavelength.SOLUTION: A cutoff wavelength-controlled optical fiber comprises a clad 1 having a uniform refractive index, and a core 2 having a higher refractive index than that of the clad 1 and disposed at a center of the clad 1. When the refractive index of the core 2 is nand the refractive index of the clad 1 is n, relative refractive index difference Δ between the clad 1 and the core 2 is defined by the formula 10. Standardized frequency V of the core 2 at a wavelength of 1550 nm is set in a range of 2.00 to 3.35, and outer diameter D of the clad 1 is set in a range of 50 to 119 μm.
摘要翻译：要解决的问题：同时抑制截止波长的增加同时实现弯曲损耗的减小和模场直径（MFD）的增加。解决方案：截止波长控制光纤包括具有均匀折射率的包层1和具有比包层1的折射率更高的折射率的芯2并且设置在包层1的中心处。当折射率芯2的折射率为n 1 ，包层1的折射率为n 2 ，相对折射率差Δ 包层1和芯2由公式10定义。芯体2在1550nm波长处的标准化频率V设定在2.00至3.35的范围内，并且包层1的外径D被设定在一定范围内为50〜119μm。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2012032575A Optical fiber 审中-公开
标题翻译：光纤
公开(公告)号：JP2012032575A
公开(公告)日：2012-02-16
申请号：JP2010171545
申请日：2010-07-30
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： MATSUI TAKASHI , NAKAJIMA KAZUHIDE , KURASHIMA TOSHIO
IPC分类号： G02B6/00 , G02B6/032
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber that reduces a bend loss in a radius of steep bend and, at the same time, realizes a bend loss that makes conventional optical fiber identification possible in a radius of relatively easy bend.SOLUTION: An optical fiber comprises a core region 11, a cladding region 12 surrounding the core region and a plurality of holes 13 disposed in one layer in the cladding region at a prescribed distance from the axis. The insides of the holes are vacuum or filled with air, gas, liquid or solid lower than the cladding region in refractive index. The bend loss at a bend radius of 5 mm is not more than 1.0 dB/turn at a wavelength of 1625 nm; and, in an approximation of the relationship between the bend loss αand the bend radius R by the next exponential function, a coefficient A in the exponential function is not more than 10 and a coefficient B in the exponential function is not less than -0.46.
摘要翻译：要解决的问题：提供一种降低陡峭弯曲半径的弯曲损耗的光纤，同时实现弯曲损耗，使得在相对容易弯曲的半径中可以进行常规的光纤识别。解决方案：光纤包括芯区域11，围绕芯区域的包层区域12和在距离轴线规定距离处设置在包层区域中的一层中的多个孔13。孔的内部是真空的或充满空气，气体，液体或固体的低于折射率的包层区域。在弯曲半径为5mm的弯曲损耗在1625nm的波长处不超过1.0dB /匝; 并且，通过下一个指数函数近似弯曲损耗α b 与弯曲半径R之间的关系，指数函数中的系数A不大于10，指数函数中的系数B不小于-0.46。版权所有（C）2012，JPO＆INPIT

6. 发明专利

JP2011039236A Assembly device and assembly method of optical connector 有权
标题翻译：光连接器的组装装置和组装方法
公开(公告)号：JP2011039236A
公开(公告)日：2011-02-24
申请号：JP2009185850
申请日：2009-08-10
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KOYAMA MAKOTO , NAKAJIMA KAZUHIDE , KURASHIMA TOSHIO , NAKAMIZO KYOICHI
IPC分类号： G02B6/36
摘要： PROBLEM TO BE SOLVED: To provide an assembly device and an assembly method of an optical connector, capable of easily and efficiently performing assembly work of an optical connector. SOLUTION: An optical fiber 1 held by a fiber holder 21 is moved to an axis direction, and is inserted to a fiber end processing section 23. After an end side of the optical fiber 1 is opened and cut in the fiber end processing section 23, the optical fiber 1 is moved to another position of the axis direction. After a corner section of an end face of the optical fiber 1 is cut into a taper shape, the optical fiber 1 is pulled out from the end processing section 23, and the optical fiber 1 is moved from a first guide groove 22a to a second guide groove 22b, and inserted to the optical connector 10 by sliding it along the second guide groove 22b. Thus, cutting of the optical fiber 1, grinding processing of the end face, and insertion step to the optical connector 10 are performed by one assembly device 20, and it is not necessary to directly treat a bare fiber 1a from which a coating 1b is removed. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够容易且有效地执行光连接器的组装工作的光连接器的组装装置和组装方法。解决方案：由光纤保持器21保持的光纤1沿轴线方向移动，并插入到光纤端部处理部23中。在光纤1的端侧在光纤端部断开处理部23，将光纤1移动到轴方向的另一位置。在将光纤1的端面的角部切割成锥形后，从端部处理部23拉出光纤1，将光纤1从第一引导槽22a移动到第二引导槽22a 引导槽22b，并且通过沿着第二引导槽22b滑动而插入到光学连接器10中。因此，通过一个组装装置20进行光纤1的切割，端面的研磨处理以及插入步骤到光连接器10，并且不需要直接处理涂覆1b的裸光纤1a 除去。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2010102138A Hole providing type single mode optical fiber and manufacturing method of the same 有权
标题翻译：孔型提供单模光纤及其制造方法
公开(公告)号：JP2010102138A
公开(公告)日：2010-05-06
申请号：JP2008273731
申请日：2008-10-24
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： NAKAJIMA KAZUHIDE , SHIMIZU TOMOYA , FUKAI CHISATO , HOSHIJIMA TETSUYA , TOMITA SHIGERU , SHIMIZU MASATOSHI
IPC分类号： G02B6/00 , G02B6/032
摘要： PROBLEM TO BE SOLVED: To provide a hole providing type single mode optical fiber used for construction of a single mode optical communication line using a communication band of 1,260 nm or more of wavelength having 1,260 nm or less of 22 m-effective cutoff wavelength and a bending loss property at 1,625 nm of wavelength and 0.1 dB/roll or less at 5 mm of bending radius, and a simple designing method of the hole providing type single mode optical fiber. SOLUTION: This hole providing type single mode optical fiber has a clad part having a uniform refractive index, a core part which has a higher refractive index than the clad part and is arranged in the center of the clad part, and at least six holes arranged at equal intervals concentrically with the core part inside the clad part. The occupancy rate of the holes in the clad part and the relative index difference of the core part in relation to the clad part are controlled. The desired bending loss property and the 22 m-effective cutoff wavelength property are thus obtained. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于构造单模光通信线路的孔提供型单模光纤，该单模光通信线路使用1,260nm以上的波长的通信带，其具有1,260nm以下的22μm有效截止波长和波长为1625nm的弯曲损耗特性以及弯曲半径为5mm时为0.1dB /小于等于或者较小的孔型提供型单模光纤的简单设计方法。解决方案：该孔提供型单模光纤具有折射率均匀的包层部分，具有比包层部分更高的折射率的芯部并且布置在包层部分的中心，并且至少六个孔以等间隔与包层部分内部的芯部同心地布置。控制包层部的孔的占有率和芯部相对于包层部的相对折射率差。因此获得所需的弯曲损耗特性和22μm有效截止波长特性。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2004061381A Method of estimating raman gain factor spectrum of optical fiber 审中-公开
公开(公告)号：JP2004061381A
公开(公告)日：2004-02-26
申请号：JP2002222089
申请日：2002-07-30
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： FUKAI CHISATO , NAKAJIMA KAZUHIDE
IPC分类号： G01M11/02 , G02F1/35 , H01S3/30
摘要： PROBLEM TO BE SOLVED: To estimate a Raman gain factor spectrum in a desired frequency shift area of optical fiber simply with high accuracy. SOLUTION: Vector factors C ij are previously calculated expressing a relation between the Raman gain factor spectrum, expressed by formula (1), in a desired frequency shift area of optical fiber with a specific glass material added thereto and Raman gain factors in arbitrary n frequency shift positions. A Raman gain factor spectrum in a desired frequency shift area of the optical fiber is estimated from the result of measurement of the Raman gain factor of measured optical fiber at arbitrary n frequency shift positions and the calculation of the vector factors C ij . COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2003329544A Effective nonlinear constant measuring method and apparatus for single-mode optical fiber 有权
标题翻译：有效的非线性恒定测量方法和单模光纤的设备
公开(公告)号：JP2003329544A
公开(公告)日：2003-11-19
申请号：JP2002139702
申请日：2002-05-15
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： NAKAJIMA KAZUHIDE , OHASHI MASAHARU
IPC分类号： G01M11/02
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus for accurately evaluating the effective nonlinear constant of an optical fiber to be measured at a desired wavelength by using the measurement result of the distribution of refraction of a single-mode optical fiber section and the distribution of an electric field.
SOLUTION: The distribution of a refractive index on an arbitrary section of the single-mode optical fiber, and that of the electric field at a desired wavelength are measured. The distribution of a nonlinear diffraction index is obtained by using the distribution of the refractive index and an additive dependency of the nonlinear refractive index determined by a glass material in the single- mode optical fiber. Further, arithmetic processing with the distribution of the electric field is performed, thus accurately evaluating the effective nonlinear refractive index and the effective nonlinear constant of the single-mode optical fiber to be measured.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种通过使用单模光纤的折射分布的测量结果来准确地评估要测量的光纤在期望波长的有效非线性常数的方法和装置部分和电场的分布。解决方案：测量单模光纤的任意部分上的折射率分布以及期望波长处的电场的折射率分布。通过使用折射率的分布和由单模光纤中的玻璃材料确定的非线性折射率的附加依赖性来获得非线性衍射指数的分布。此外，执行具有电场分布的算术处理，从而准确地评估要测量的单模光纤的有效非线性折射率和有效非线性常数。版权所有（C）2004，JPO

10. 发明专利

JP2003065899A Nonlinear refractive index measuring method and device for single mode optical fiber 审中-公开
$Nonlinear refractive index measuring method and device for single mode optical fiber$
标题翻译：非线性折射率测量方法和单模光纤的器件
公开(公告)号：JP2003065899A
公开(公告)日：2003-03-05
申请号：JP2001253326
申请日：2001-08-23
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KUROKAWA KENJI , OHASHI MASAHARU , NAKAJIMA KAZUHIDE
IPC分类号： G01M11/02 , G02F1/365
摘要： PROBLEM TO BE SOLVED: To measure a nonlinear refractive index of the single mode optical fiber by correcting the influence of a chirp of a light pulse used for measurement. SOLUTION: The spectral band width of an output light pulse of a measured optical fiber with respect to each input power is measured, the spectral spread of the spectral band width with respect to the input spectral band width is calculated, and the nonlinear refractive index n2 ' of the measured optical fiber is obtained from the gradient of a straight line produced when the spectral spread becomes a linear function of the input power. The correction coefficient ξexpressed as a function of a chirp coefficient C is found by numerical calculation, and the nonlinear refractive index n2 ' obtained by the measurement is multiplied by the correction coefficient ξ, so that a nonlinear refractive index n2 corrected the influence of the chirp of the input light pulse is calculated.
摘要翻译：要解决的问题：通过校正用于测量的光脉冲的啁啾的影响来测量单模光纤的非线性折射率。解决方案：测量测量光纤相对于每个输入功率的输出光脉冲的光谱带宽，计算光谱带宽相对于输入光谱带宽的光谱扩展，非线性折射率n2 当光谱扩展变为输入功率的线性函数时，由所测量的光纤的斜率获得。通过数值计算求出作为啁啾系数C的函数的校正系数ξ，将通过测定得到的非线性折射率n2'乘以校正系数ξ，使非线性折射率n2校正啁啾的影响计算输入光脉冲。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式