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41. 发明授权

US07286740B2 Optical fiber, optical transmission line, optical module and optical transmission system 有权
标题翻译：光纤，光传输线，光模块和光传输系统
公开(公告)号：US07286740B2
公开(公告)日：2007-10-23
申请号：US11544007
申请日：2006-10-06
申请人： Takashi Sasaki , Kazumasa Makihara , Tetsuya Haruna , Masashi Onishi , Masaaki Hirano
发明人： Takashi Sasaki , Kazumasa Makihara , Tetsuya Haruna , Masashi Onishi , Masaaki Hirano
IPC分类号： G02B6/02 , G02B6/036 , G02B6/028 , G02B6/00
CPC分类号： G02B6/03644 , C03B2203/22 , C03B2203/29 , C03B2203/36 , G02B6/02261 , G02B6/03627 , G02B6/29377
摘要： The present invention relates to an optical fiber which has a structure for further increasing an FOM (=|dispersion|/loss) and which can be applied to a dispersion compensation module. The optical fiber is mainly composed of silica glass and has a core region including a center of an optical axis, a depressed region surrounding the core region, a ring region surrounding the depressed region, and a cladding region surrounding the ring region and doped with F. As compared with the refractive index of pure silica glass, a relative refractive index difference of the core region is 3% or more but 4% or less, a relative refractive index difference of the depressed region is −1% or more but −0.5% or less, a relative refractive index difference of the ring region is 0.01% or more but 0.24% or less, and a relative refractive index difference of the cladding region is −0.3% or more but −0.1% or less. The FOM at the wavelength of 1550 nm is 250 ps/nm/dB or more.
摘要翻译：本发明涉及具有进一步增加FOM（= |色散| /损耗）的结构的光纤，并且可以应用于色散补偿模块。该光纤主要由石英玻璃构成，具有包括光轴中心，围绕芯区域的凹陷区域，围绕该凹陷区域的环形区域和围绕该环形区域并且掺杂有F的包层区域的芯区域与纯石英玻璃的折射率相比，芯区域的相对折射率差为3％以上且4％以下，凹陷区域的相对折射率差为-1％以上-0.5 ％以下，环区域的相对折射率差为0.01％以上且0.24％以下，包层区域的相对折射率差为-0.3％以上-0.1％以下。 1550nm波长的FOM为250ps / nm / dB以上。

42. 发明授权

US07062941B2 Manufacturing method of optical fiber preform 有权
标题翻译：光纤预制棒的制造方法
公开(公告)号：US07062941B2
公开(公告)日：2006-06-20
申请号：US10103786
申请日：2002-03-25
申请人： Masashi Onishi , Eiji Yanada , Masaaki Hirano , Hideyuki Ijiri
发明人： Masashi Onishi , Eiji Yanada , Masaaki Hirano , Hideyuki Ijiri
IPC分类号： C03B37/07
CPC分类号： C03B37/01228
摘要： A method for manufacturing an optical fiber preform that can produce an optical fiber having desired characteristics over the longer length thereof. A crude preform provided with a core region and a cladding region is prepared (Step S1), and at a plurality of positions in the longitudinal direction of the crude preform, a refractive index profile in the cross-section of the crude preform is measured (Step S2). Then, the shape of the cladding region is demarcated based on the shape of the profile (Step S3). Subsequently, the crude preform is ground based on the results of the demarcation (Step S4). Thus, an optical fiber preform that enables the manufacture of an optical fiber having target characteristics is manufactured.
摘要翻译：一种光纤预制棒的制造方法，该光纤预制棒可以在其较长的长度上产生具有所需特性的光纤。制备具有芯区域和包层区域的粗制预制件（步骤S1），并且在粗制预型件的纵向方向上的多个位置处，测量粗制预成型体的横截面中的折射率分布（步骤S2）。然后，基于轮廓的形状划定包层区域的形状（步骤S 3）。随后，基于划分的结果研磨粗制预成型件（步骤S4）。因此，制造能够制造具有目标特性的光纤的光纤预制棒。

43. 发明授权

US07045737B2 Glass-processing method and glass-processing apparatus for the method 有权
标题翻译：玻璃加工方法和玻璃加工装置的方法
公开(公告)号：US07045737B2
公开(公告)日：2006-05-16
申请号：US10780716
申请日：2004-02-19
申请人： Masashi Onishi , Masaaki Hirano , Tetsuya Nakanishi
发明人： Masashi Onishi , Masaaki Hirano , Tetsuya Nakanishi
IPC分类号： B23K9/00
CPC分类号： H05H1/30 , C03B23/043 , C03B23/207 , C03B29/02 , C03B37/0124 , C03B37/01815 , C03B37/01823 , Y02P40/57
摘要： A glass-processing method adjusts the range of the heating region according to the work piece and processing condition, and a glass-processing apparatus implements the method. The method incorporates the heating of a glass body with a thermal plasma torch comprising (a) a main body provided with a plurality of ports from which a gas issues and (b) a device for applying a high-frequency electric field to the gas fed into the main body. The method comprises the steps of (1) adjusting the plasma flame's size perpendicular to the center axis of the main body by controlling the flow rate of the gas fed into each port according to the size of the glass body, the processing condition, or both and (2) heating the glass body. The apparatus comprises (a) a thermal plasma torch for heating a glass body, comprising (a1) a main body provided with a plurality of ports from which a gas issues and (a2) a device for applying a high-frequency electric field to the gas fed into the main body and (b) a device for adjusting the flow rate of the gas fed into each port.
摘要翻译：玻璃加工方法根据工件和加工条件调节加热区域的范围，玻璃加工装置实施该方法。该方法包括用热等离子体焰炬加热玻璃体，其包括（a）主体，其设置有多个端口，气体从该端口发出，以及（b）用于将高频电场施加到气体馈送的装置进入主体。该方法包括以下步骤：（1）通过根据玻璃体的尺寸，加工条件或两者来控制进入每个端口的气体的流量来调节垂直于主体的中心轴的等离子体火焰的尺寸和（2）加热玻璃体。该装置包括：（a）用于加热玻璃体的热等离子体焰炬，包括（a1）设置有气体发生的多个端口的主体，以及（a2）用于将高频电场施加到送入主体的气体和（b）用于调节供给到每个端口的气体的流量的装置。

44. 发明授权

US06888669B2 Raman amplifier 有权
标题翻译：拉曼放大器
公开(公告)号：US06888669B2
公开(公告)日：2005-05-03
申请号：US10286864
申请日：2002-11-04
申请人： Masashi Onishi , Toshiaki Okuno
发明人： Masashi Onishi , Toshiaki Okuno
IPC分类号： G02B6/02 , G02F1/35 , H01S3/067 , H01S3/094 , H01S3/30 , H04B10/2507 , H04B10/2537 , H04B10/2557 , H04B10/2563 , H04B10/29 , H04B10/293 , H01S3/00
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/094003
摘要： A Raman amplifier applicable to a wavelength division multiplexing optical transmission system is proposed. The Raman amplifier, which can make good use of a wavelength range, comprises an optical fiber for Raman amplification and a pump light introducing means. The zero-dispersion wavelength of the optical fiber and the wavelength of the pump light are nearly equal. The wavelength of pump light is preferably in the range where the absolute magnitude of the chromatic dispersion of the optical fiber is less than 0.3 ps·nm−1·km−1. A range near a zero-dispersion wavelength cannot be utilized as a signal range because waveform deterioration of signal light occurs due to four wave mixing. This range can be utilized effectively as a wavelength range of exciting light for Raman amplification.
摘要翻译：提出了适用于波分复用光传输系统的拉曼放大器。可以充分利用波长范围的拉曼放大器包括用于拉曼放大的光纤和泵浦光引入装置。光纤的零色散波长和泵浦光的波长几乎相等。泵浦光的波长优选在光纤的色散的绝对幅度小于0.3ps.nm -1的范围内。靠近零色散波长的范围不能用作信号范围，因为由于四次波混合而发生信号光的波形恶化。该范围可以有效地用作拉曼放大的激发光的波长范围。

45. 发明授权

US06868213B2 Optical fiber and production method therefor 有权
标题翻译：光纤及其制作方法
公开(公告)号：US06868213B2
公开(公告)日：2005-03-15
申请号：US10121724
申请日：2002-04-15
申请人： Eisuke Sasaoka , Takemi Hasegawa , Masashi Onishi , Shinji Ishikawa
发明人： Eisuke Sasaoka , Takemi Hasegawa , Masashi Onishi , Shinji Ishikawa
IPC分类号： G02B6/02 , C03B37/15 , G02B6/032
CPC分类号： G02B6/02328 , C03B37/15 , C03B2203/16 , G02B6/02361 , G02B6/02366 , G02B6/02376 , G02B6/02385
摘要： The present invention provides an optical fiber which has a hollow portion extending along the axis and which reduces degradation of the optical characteristics, and a production method thereof. An optical fiber includes a hollow core portion, and a cladding portion which surrounds the hollow core portion. The refractive index of the hollow core portion is lower than that of the cladding portion. The hollow core portion is closed at both ends of the optical fiber so as to form sealed portions. The sealed portions are formed by, for example, heating the optical fiber and softening the cladding portion. This prevents foreign material and the like from entering the hollow core portion. Ferrules of optical connectors are attached to both end faces of the optical fiber.
摘要翻译：本发明提供一种光纤，该光纤具有沿轴线延伸的中空部分，并且减少了光学特性的劣化及其制造方法。光纤包括中空芯部分和围绕中空芯部分的包层部分。中空芯部的折射率低于包层部的折射率。中空芯部在光纤的两端封闭，形成密封部分。密封部分通过例如加热光纤并使包层部分软化而形成。这防止异物等进入中空芯部。光连接器的套圈连接到光纤的两个端面。

46. 发明授权

US06748152B2 Optical transmission system 有权
标题翻译：光传输系统
公开(公告)号：US06748152B2
公开(公告)日：2004-06-08
申请号：US10098172
申请日：2002-03-15
申请人： Yuji Kubo , Masashi Onishi , Takatoshi Kato
发明人： Yuji Kubo , Masashi Onishi , Takatoshi Kato
IPC分类号： G02B602
CPC分类号： H04B10/2916 , G02B6/02242 , G02B6/02271
摘要： The optical transmission system in accordance with the present invention is an optical transmission system in which an optical fiber transmission line is laid between a transmitting station and a receiving station, first and second optical couplers are provided on the optical fiber transmission line, a first Raman amplification pumping light source is connected to the first optical coupler, a second Raman amplification pumping light source is connected to the second optical coupler, the optical fiber transmission line Raman-amplifies signal light in S band when Raman amplification pumping light is supplied thereto while transmitting the signal light, and the optical fiber transmission line has a zero-dispersion wavelength of 1350 nm to 1440 nm and a cable cutoff wavelength of less than 1368 nm.
摘要翻译：根据本发明的光传输系统是一种光传输系统，其中在发射站和接收站之间铺设光纤传输线，第一和第二光耦合器设置在光纤传输线上，第一拉曼放大泵浦光源连接到第一光耦合器，第二拉曼放大泵浦光源连接到第二光耦合器，当传输拉曼放大泵浦光时，光纤传输线拉曼放大S波段中的信号光信号光和光纤传输线具有1350nm至1440nm的零色散波长和小于1368nm的电缆截止波长。

47. 再颁专利

USRE38086E1 Dispersion compensating fiber and optical transmission system including the same 有权
标题翻译：色散补偿光纤和光传输系统包括它们
公开(公告)号：USRE38086E1
公开(公告)日：2003-04-22
申请号：US09714615
申请日：2000-11-17
申请人： Masashi Onishi , Hiroo Kanamori , Masayuki Nishimura , Tomonori Kashiwada , Yasushi Koyano
发明人： Masashi Onishi , Hiroo Kanamori , Masayuki Nishimura , Tomonori Kashiwada , Yasushi Koyano
IPC分类号： G02B616
CPC分类号： G02B6/02261 , C03B37/014 , C03B2203/22 , C03B2203/36 , G02B6/02004 , G02B6/0228 , G02B6/02285 , G02B6/0281 , G02B6/0283 , G02B6/0286 , G02B6/03611 , G02B6/03627 , G02B6/03644 , G02B6/29377 , H01S3/06729 , H01S3/302
摘要： The present invention relates to a dispersion compensating fiber for improving a transmission system with it in total chromatic dispersion and dispersion slope in the 1.55 &mgr;m wavelength band. The dispersion compensating fiber according to the present invention is characterized by having the following characteristics for light in the 1.55 &mgr;m wavelength band: chromatic dispersion not less than −40 ps/km/nm and not more than 0 ps/km/nm; dispersion slope not less than −0.5 ps/km/nm2 and not more than −0.1 ps/km/nm2; transmission loss not more than 0.5 dB/km; polarization mode dispersion not more than 0.7 ps.km−½; mode field diameter not less than 4.5 &mgr;m and not more than 6.5 &mgr;m; cut-off wavelength not less than 0.7 &mgr;m and not more than 1.7 &mgr;m in the length of 2 m; and bending loss at the diameter of 20 mm, not more than 100 dB/m. The dispersion compensating fiber is optically connected with a dispersion shifted fiber as a compensated object at a ratio of appropriate lengths, which can improve the system including the dispersion compensating fiber in the total chromatic dispersion and dispersion slope of the system in the 1.55 &mgr;m band.
摘要翻译：本发明涉及一种用于改善传输系统的色散补偿光纤在1.55μm波长带中的总色散和色散斜率。根据本发明的色散补偿光纤的特征在于对于1.55μm波长带中的光具有以下特性：色散不小于-40ps / km / nm且不大于0ps / km / nm; 色散斜率不小于-0.5 ps / km / nm2，不大于-0.1 ps / km / nm2; 传输损耗不超过0.5 dB / km; 偏振模色散不大于0.7 ps.km-½; 模场直径不小于4.5μm，不大于6.5μm; 截止波长不小于0.7μm和不大于1.7μm，长度为2μm; 弯曲损耗为20mm，不大于100dB / m。色散补偿光纤以适当长度的比率与作为补偿对象的色散位移光纤光学连接，这可以改善包括色散补偿光纤在1.55mum带中的系统的总色散和色散斜率的系统。

48. 发明授权

US06502428B1 Manufacturing method of an optical fiber 失效
标题翻译：光纤的制造方法
公开(公告)号：US06502428B1
公开(公告)日：2003-01-07
申请号：US09698280
申请日：2000-10-30
申请人： Masashi Onishi , Kazuya Kuwahara , Katsuya Nagayama
发明人： Masashi Onishi , Kazuya Kuwahara , Katsuya Nagayama
IPC分类号： C03B3707
CPC分类号： G02B6/03666 , C03B37/0253 , C03B2203/18 , C03B2203/36 , C03B2205/40 , C03B2205/72 , G02B6/02271 , G02B6/0283 , G02B6/03627
摘要： A manufacturing method of an optical fiber, which enables to precisely manufacture the optical fiber having a desired chromatic dispersion, comprising: (1) preparing an optical fiber preform having a longitudinally uniform refractive index, (2) measuring the chromatic dispersion of a predetermined length of the optical fiber obtained at the beginning of the drawing, (3) according to the results of such measurement, estimating the chromatic dispersion characteristic of the optical fiber obtained by drawing the optical fiber preform, and commencing the drawing of the optical fiber preform. To achieve the target chromatic dispersion diameter of the optical fiber is determined according to the chromatic dispersion that is measured with respect to a predetermined length of an optical fiber obtained at the beginning of the drawing of an optical fiber preform. Then, the remainder of the optical fiber preform is drawn to produce an optical fiber having the desired chromatic dispersion.
摘要翻译：一种光纤制造方法，其能够精确地制造具有期望的色散的光纤，包括：（1）制备具有纵向均匀折射率的光纤预制棒，（2）测量预定长度的色散，（3）根据这种测量结果，估计通过拉制光纤预制棒而获得的光纤的色散特性，并开始拉伸光纤预制棒。根据在光纤预制件的绘制开始时获得的光纤的预定长度测量的色散来确定实现光纤的目标色散直径。然后，拉出光纤预制件的其余部分，以产生具有所需色散的光纤。

49. 发明授权

US06427044B1 Optical fiber 失效
标题翻译：光纤
公开(公告)号：US06427044B1
公开(公告)日：2002-07-30
申请号：US09585337
申请日：2000-06-02
申请人： Eiji Yanada , Yuichi Ohga , Masashi Onishi
发明人： Eiji Yanada , Yuichi Ohga , Masashi Onishi
IPC分类号： G02B622
CPC分类号： G02B6/03666 , C03B37/027 , C03B37/02745 , C03B37/032 , C03B2201/12 , C03B2201/31 , C03B2203/36 , C03B2205/06 , C03B2205/40 , C03C25/1062 , G02B6/02014 , G02B6/02257 , G02B6/02271 , G02B6/02395 , G02B6/03611 , G02B6/03627 , G02B6/03644
摘要： The present invention relates to an optical fiber comprising a structure which yields a low optical transmission loss even when doped with a high concentration of Ge element and is excellent in reliability for strength. The optical fiber according to the present invention comprises a core region whose maximum value &Dgr;max of relative refractive index difference with respect to silica glass non-intentionally doped with impurities is 0.8% or more, in its diameter direction, a cladding region comprising silica glass non-intentionally doped with impurities or silica glass doped with a predetermined amount of fluorine, and a hermetic coat mainly composed of carbon. In particular, the transmission loss &agr; at a wavelength of 1.55 &mgr;m and the maximum value &Dgr;max satisfy the relationship of: &agr;≦0.131×(&Dgr;max)2−0.214×(&Dgr;max)+0.284 in the optical fiber according to the present invention.
摘要翻译：本发明涉及一种光纤，其包括即使掺杂高浓度的Ge元素也能够获得低的光传输损失，并且强度可靠性优异的结构。根据本发明的光纤包括芯区，其相对折射率差的相对折射率差的最大值相对于未有意掺杂杂质的石英玻璃的直径方向为0.8％以上，包含二氧化硅玻璃非晶的包层区域 - 掺杂有预定量氟的杂质或二氧化硅玻璃以及主要由碳组成的气密涂层。特别地，在1.55μm波长的传输损耗α和最大值DELTAmax满足根据本发明的光纤中的关系：

50. 发明授权

US06413453B1 Motor-driven mold clamping device and mold clamping method 失效
标题翻译：电动模具夹紧装置和模具夹紧方法
公开(公告)号：US06413453B1
公开(公告)日：2002-07-02
申请号：US09335924
申请日：1999-06-18
申请人： Masashi Onishi
发明人： Masashi Onishi
IPC分类号： B29C4576
CPC分类号： B29C45/7653 , B29C45/661 , B29C2945/76013 , B29C2945/76083 , B29C2945/76224 , B29C2945/76505 , B29C2945/76525 , B29C2945/76595 , B29C2945/76702 , B29C2945/76869
摘要： A motor-driven mold clamping device includes a toggle mechanism for advancing and retracting a movable platen toward and away from a fixed platen, and a servo motor adapted to drive the toggle mechanism via a ball screw mechanism. The toggle mechanism, the movable platen, and the fixed platen are configured such that a mold clamping force is controlled with a knicking in the toggle mechanism being in a predetermined range such that the servo motor is driven with a current which is controlled to be at or near a rated current therefore, in order to maintain the mold clamping force. A method of controlling mold clamping force includes the steps of providing the toggle mechanism, and the servo motor as discussed above, and controlling the mold clamping force by appropriately configuring the knicking in the toggle mechanism to be in a predetermined range such that the servo motor is driven with a current which is at or near a rated current.
摘要翻译：一种电动模具夹紧装置，包括用于使可动压板朝向和远离固定压板前进和后退的肘节机构，以及适于经由滚珠丝杠机构驱动肘节机构的伺服电动机。肘节机构，可动压板和固定压板被构造成使得通过肘节机构中的跪在一预定范围内来控制合模力，使得伺服电动机被控制为处于或接近额定电流，以保持模具夹紧力。一种控制合模力的方法包括如上所述提供肘节机构和伺服电动机的步骤，通过将肘节机构中的踢脚适当地配置在预定范围内来控制合模力，使得伺服电动机用等于或接近额定电流的电流驱动。

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