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. 发明授权

US06766089B2 Low-dispersion optical fiber and optical transmission system using the low-dispersion optical fiber 失效
标题翻译：低色散光纤和光传输系统采用低色散光纤
公开(公告)号：US06766089B2
公开(公告)日：2004-07-20
申请号：US10662341
申请日：2003-09-16
申请人： Shinichi Arai , Ryuichi Sugizaki , Keiichi Aiso , Naoto Oyama , Jun Terada , Hisashi Koaizawa , Katsunori Inoue
发明人： Shinichi Arai , Ryuichi Sugizaki , Keiichi Aiso , Naoto Oyama , Jun Terada , Hisashi Koaizawa , Katsunori Inoue
IPC分类号： G02B602
CPC分类号： G02B6/02009 , G02B6/02014 , G02B6/02242 , G02B6/02257 , G02B6/02261 , G02B6/02271 , G02B6/0228 , G02B6/0286 , G02B6/03627 , G02B6/03633 , G02B6/03644 , G02B6/03666
摘要： A low-dispersion optical fiber provides both reduced chromatic dispersion in a used wavelength band and increased effective core area. The low-dispersion optical fiber is made by covering a center core (1) with a first side core (2), covering the first side core (2) with a second side core (3), and covering the second side core (3) with a cladding (5). When the maximum refractive index of the center core (1) is written n1, the minimum refractive index of the first side core (2) is written n2, the maximum refractive index of the second side core (3) is written n3 and the refractive index of the cladding (5) is written nc, then n1>n3>nc>n2 is satisfied. Relative refractive index differences &Dgr;1, &Dgr;2 and &Dgr;3 with respect to the cladding (5) of the maximum refractive index of the center core (1), the minimum refractive index of the first side core (2) and the maximum refractive index of the second side core (3) respectively are made 0.4%≦&Dgr;1≦0.7%, −0.30%≦&Dgr;2≦−0.05% and 0.2%≦&Dgr;3.
摘要翻译：低色散光纤在使用的波长带中提供减少的色散并增加有效核心区域。低分散光纤通过用第一侧芯（2）覆盖中心芯（1），用第二侧芯（3）覆盖第一侧芯（2）并覆盖第二侧芯（3））与包层（5）。当中心芯（1）的最大折射率被写入n1时，第一侧芯（2）的最小折射率被写为n2，第二侧芯（3）的最大折射率被写为n3，折射率将包层（5）的折射率写入nc，则满足n1> n3> nc> n2。相对于中心纤芯（1）的最大折射率的包层（5），第一侧芯（2）的最小折射率和第二侧芯的最大折射率的相对折射率差Δ1，Delta2和Delta3 侧芯（3）分别为0.4％<=Δ1<= 0.7％，-0.30％<=Δ2≤0.05％和0.2％<= DELTA3。

2. 发明授权

US06684018B2 Low-dispersion optical fiber and optical transmission system using the low-dispersion optical fiber 有权
标题翻译：低色散光纤和光传输系统采用低色散光纤
公开(公告)号：US06684018B2
公开(公告)日：2004-01-27
申请号：US09983616
申请日：2001-10-25
申请人： Shinichi Arai , Ryuichi Sugizaki , Keiichi Aiso , Naoto Oyama , Jun Terada , Hisashi Koaizawa , Katsunori Inoue
发明人： Shinichi Arai , Ryuichi Sugizaki , Keiichi Aiso , Naoto Oyama , Jun Terada , Hisashi Koaizawa , Katsunori Inoue
IPC分类号： G02B602
CPC分类号： G02B6/02009 , G02B6/02014 , G02B6/02242 , G02B6/02257 , G02B6/02261 , G02B6/02271 , G02B6/0228 , G02B6/0286 , G02B6/03627 , G02B6/03633 , G02B6/03644 , G02B6/03666
摘要： A low-dispersion optical fiber provides both reduced chromatic dispersion in a used wavelength band and increased effective core area. The low-dispersion optical fiber is made by covering a center core (1) with a first side core (2), covering the first side core (2) with a second side core (3), and covering the second side core (3) with a cladding (5). When the maximum refractive index of the center core (1) is written n1, the minimum refractive index of the first side core (2) is written n2, the maximum refractive index of the second side core (3) is written n3 and the refractive index of the cladding (5) is written nc, then n1>n3>nc>n2 is satisfied. Relative refractive index differences &Dgr;1, &Dgr;2 and &Dgr;3 with respect to the cladding (5) of the maximum refractive index of the center core (1), the minimum refractive index of the first side core (2) and the maximum refractive index of the second side core (3) respectively are made 0.4%≦&Dgr;1≧0.7%, −0.30%≦&Dgr;2≦−0.05% and 0.2%≦&Dgr;3.
摘要翻译：低色散光纤在使用的波长带中提供减少的色散并增加有效核心区域。低分散光纤通过用第一侧芯（2）覆盖中心芯（1），用第二侧芯（3）覆盖第一侧芯（2）并覆盖第二侧芯（3））与包层（5）。当中心芯（1）的最大折射率被写入n1时，第一侧芯（2）的最小折射率被写为n2，第二侧芯（3）的最大折射率被写为n3，折射率将包层（5）的折射率写入nc，则满足n1> n3> nc> n2。相对于中心纤芯（1）的最大折射率的包层（5），第一侧芯（2）的最小折射率和第二侧芯的最大折射率的相对折射率差Δ1，Delta2和Delta3 侧芯（3）分别为0.4％<=Δ1> = 0.7％，-0.30％<=Δ2≤0.05％和0.2％<= DELTA3。

3. 发明授权

US06404967B2 Optical fiber and optical transmission line using the same 有权
标题翻译：光纤和光传输线使用相同
公开(公告)号：US06404967B2
公开(公告)日：2002-06-11
申请号：US09760822
申请日：2001-01-17
申请人： Shinichi Arai , Ryuichi Sugizaki , Keiichi Aiso
发明人： Shinichi Arai , Ryuichi Sugizaki , Keiichi Aiso
IPC分类号： G02B602
CPC分类号： G02B6/03666 , G02B6/02019 , G02B6/02261 , G02B6/03644
摘要： The present invention provides an optical fiber which has negative dispersion and negative dispersion slope in a wavelength band in use, and can carry out single-mode operation in which distortion due to the non-linear phenomenon can be suppressed so as to be suitable for wavelength multiplexed optical transmissions. When the relative index differences of center core (1), first side core (2), second side core (3), and inner cladding (4) from the silica level are &Dgr;1, &Dgr;2, &Dgr;3, and &Dgr;4, l.7%≦&Dgr;1, &Dgr;2≦−0.3%, 0.25%≦&Dgr;3, and &Dgr;4
摘要翻译：本发明提供一种在使用的波长带中具有负色散和负色散斜率的光纤，并且可以执行单模式操作，其中可以抑制由于非线性现象引起的失真，从而适合于波长复用光传输。当二氧化硅水平的中心芯（1），第一侧芯（2），第二侧芯（3）和内包层（4）的相对折射率差为DELTA1，DELTA2，DELTA3和DELTA4时，为1.7％ <= DELTA1，DELTA2 <= - 0.3％，0.25％<= DELTA3和DELTA4 <0。此外，通过将中心纤芯1的直径a1除以第一侧芯2的直径a2而确定的值A设定为0.15 <= A <= 0.2，并且通过将直径a3 的第一侧芯3的直径a2设定为1

4. 发明授权

US07466479B2 Optical fiber for optical amplifier 有权
标题翻译：光放大器用光纤
公开(公告)号：US07466479B2
公开(公告)日：2008-12-16
申请号：US11030147
申请日：2005-01-07
申请人： Keiichi Aiso
发明人： Keiichi Aiso
IPC分类号： H01S3/00
CPC分类号： C03C13/04 , H01S3/06708 , H01S3/094003
摘要： By optimizing the refractive index profile, the absorption coefficient of a rare earth element doped optical fiber can be enlarged and nonlinear effect can be suppressed. Thus, according to the present invention, the optical fiber, which is suitable for wide band optical amplification, can be realized. Moreover, in the present invention, the optical fiber of W-shape profile comprising a core, the first cladding having a refractive index smaller than that of said core surrounding said core, and the second cladding having a refractive index smaller than that of said core and larger than that of said first cladding surrounding said first cladding is prepared and are suitable for the wide band optical amplification. That is, since in the rare earth element optical fiber of this W-shape profile, both the absorption coefficient of a rare earth element, and the absolute value of chromatic dispersion can be increased greatly as compared to the optical fiber of the conventional step index profile and nonlinear effect can be suppressed more efficiently, an optical fiber which is suitable for further wide band optical amplification, is realizable.
摘要翻译：通过优化折射率分布，可以扩大稀土元素掺杂光纤的吸收系数，并且可以抑制非线性效应。因此，根据本发明，可以实现适用于宽带光放大的光纤。此外，在本发明中，包括芯的W型轮廓的光纤，所述第一包层的折射率小于围绕所述纤芯的所述纤芯的折射率，所述第二包层的折射率小于所述芯的折射率并且比围绕所述第一包层的所述第一包层的尺寸大，并且适合于宽带光学放大。也就是说，由于在这种W形轮廓的稀土元素光纤中，稀土元素的吸收系数和色散的绝对值都可以与传统步长的光纤相比大大增加可以更有效地抑制轮廓和非线性效应，适用于进一步的宽带光放大的光纤是可实现的。

5. 发明授权

US6055353A Optical fiber for optical amplification and optical amplifier using the optical fiber 失效
标题翻译：用于光放大的光纤和使用光纤的光放大器
公开(公告)号：US6055353A
公开(公告)日：2000-04-25
申请号：US086465
申请日：1998-05-29
申请人： Keiichi Aiso
发明人： Keiichi Aiso
IPC分类号： G02B6/00 , H01S3/06 , H01S3/067 , H01S3/10 , G02B6/02
CPC分类号： H01S3/06708
摘要： The present invention provides an optical fiber for optical amplification used for an optical transmission system, for which the chromatic dispersion is controlled, and an optical amplifier in which the optical fiber for optical amplification is employed. The optical fiber according to the invention is such that the cladding has a lower refractive index than the core and is disposed so as to surround the core having a higher refractive index than that of the cladding, wherein the refractive index difference .DELTA. of the core with respect to the abovementioned cladding is from 0.4% to 1.9% and the diameter of the abovementioned core is from 4.2 to 5.0 .mu.m.
摘要翻译：本发明提供一种光放大用光纤，其用于光传输系统，其色散被控制，以及光放大器，其中采用光放大光纤。根据本发明的光纤使得包层的折射率低于芯部，并且被设置为围绕具有比包层的折射率更高的折射率的芯，其中芯的折射率差ΔTATA与相对于上述包层为0.4〜1.9％，上述芯的直径为4.2〜5.0μm。

6. 发明申请

US20120301610A1 METHOD OF PRODUCING GLASS PREFORM AND APPARATUS FOR PRODUCING THE SAME 审中-公开
标题翻译：生产玻璃预制件的方法及其制造方法
公开(公告)号：US20120301610A1
公开(公告)日：2012-11-29
申请号：US13525572
申请日：2012-06-18
申请人： Keiichi Aiso , Tetsuro Wada , Shinji Asao , Nobuaki Orita , Takeshi Yagi
发明人： Keiichi Aiso , Tetsuro Wada , Shinji Asao , Nobuaki Orita , Takeshi Yagi
IPC分类号： B05D1/12 , B05C19/04
CPC分类号： C03B37/01294
摘要： A method of producing a glass preform by depositing silica powder that contains silica particles on a starting material includes a transferring step, a disaggregating step, and a depositing step. The transferring step includes transferring the silica powder. The disaggregating step includes disaggregating and dispersing agglomerates of the silica particles contained in the silica powder while being transferred in the transferring step. The depositing step includes depositing the silica powder, which is transferred and is obtained by disaggregating and dispersing the agglomerates of the silica particles, on the starting material.
摘要翻译：通过在原料上沉积含有二氧化硅颗粒的二氧化硅粉末制造玻璃预制体的方法包括转印步骤，分解步骤和沉积步骤。转移步骤包括转移二氧化硅粉末。解聚步骤包括在转移步骤中转移二氧化硅粉末中包含的二氧化硅颗粒的附聚物的分散和分散。沉积步骤包括沉积二氧化硅粉末，其通过将二氧化硅颗粒的附聚物分解和分散而转移并获得在原料上。

7. 发明授权

US08233761B2 Optical fiber and optical waveguide 有权
标题翻译：光纤和光波导
公开(公告)号：US08233761B2
公开(公告)日：2012-07-31
申请号：US12793384
申请日：2010-06-03
申请人： Ryo Miyabe , Keiichi Aiso
发明人： Ryo Miyabe , Keiichi Aiso
IPC分类号： G02B6/032 , G02B6/02
CPC分类号： G02B6/02214 , G02B6/02366 , G02B6/02376 , G02B6/2551
摘要： An optical fiber includes a core region having a first refractive index and a cladding region having a second refractive index lower than the first refractive index on an outer circumference of the core region. The cladding region includes four holes formed to have a four-fold rotational symmetry with respect to a center axis around the core region in a longitudinal direction, such that a zero-dispersion wavelength is 900 nm to 1150 nm and a cutoff wavelength is equal to or shorter than 950 nm.
摘要翻译：光纤包括具有第一折射率的芯区域和在芯区域的外周上具有低于第一折射率的第二折射率的包层区域。包层区域包括四个孔，其形成为在纵向方向上相对于芯区域周围的中心轴线具有四重旋转对称，使得零色散波长为900nm至1150nm，截止波长等于或短于950nm。

8. 发明授权

US07362939B2 Optical fiber for long period grating, long period grating component and manufacturing method of the same 失效
标题翻译：光纤长周期光栅，长周期光栅元件及其制造方法相同
公开(公告)号：US07362939B2
公开(公告)日：2008-04-22
申请号：US11349871
申请日：2006-02-08
申请人： Toshiaki Tsuda , Yasuo Uemura , Keiichi Aiso , Takeshi Yagi , Yukio Niino , Kazuhiko Nishiyama , Hiroshi Kobayashi
发明人： Toshiaki Tsuda , Yasuo Uemura , Keiichi Aiso , Takeshi Yagi , Yukio Niino , Kazuhiko Nishiyama , Hiroshi Kobayashi
IPC分类号： G02B6/02 , G02B6/036 , G02B6/34
CPC分类号： G02B6/02095 , G02B6/02171 , G02B6/4492
摘要： This invention relates to an optical fiber for long period grating (LPG), LPG components, and manufacturing method of LPG used as a mode coupler, an optical filter, etc. The optical fiber for LPG comprises a core layer, a first cladding layer that surrounds said core layer and transmits the cladding modes, and a second cladding layer that surrounds said first cladding layer and confines the optical signal of the cladding mode within said first cladding layer. The LPG component comprises an optical fiber for LPG, a coating reinforcement to cover and reinforce said optical fiber for LPG. The manufacturing method of LPG comprises a step of preparation of an optical fiber, a step of constructing the LPG on a predetermined region in said core of said optical fiber by irradiating laser light on said region over a predetermined period corresponding to the LPG, on the predetermined part of said optical fiber, and a step which covers and reinforces said grating region.
摘要翻译：本发明涉及一种用于长周期光栅（LPG）的光纤，LPG部件以及用作模式耦合器的LPG的制造方法，滤光器等。用于LPG的光纤包括芯层，第一包层围绕所述芯层并透射包层模;以及第二覆层，其围绕所述第一包层，并将所述包层模式的光信号限制在所述第一包层内。 LPG组件包括用于LPG的光纤，用于覆盖和加强用于LPG的所述光纤的涂层加强件。 LPG的制造方法包括制造光纤的步骤，在所述光纤的所述芯部的规定区域上，在与所述LPG对应的规定时间内在所述区域上照射激光，在所述光纤的所述芯部的规定区域上，所述光纤的预定部分，以及覆盖并加强所述光栅区域的步骤。

9. 发明申请

US20070216993A1 Optical Fiber Laser Using Rare Earth-Added Fiber And Wide Band Light Source 审中-公开
标题翻译：使用稀土光纤和宽带光源的光纤激光器
公开(公告)号：US20070216993A1
公开(公告)日：2007-09-20
申请号：US10591665
申请日：2005-03-04
申请人： Keiichi Aiso , Masateru Tadakuma , Yuichi Takushima
发明人： Keiichi Aiso , Masateru Tadakuma , Yuichi Takushima
IPC分类号： H01S3/00
CPC分类号： H01S3/1112 , H01S3/06712 , H01S3/06725 , H01S3/06791
摘要： A fiber laser includes in a resonator: a normal dispersion optical fiber; an anomalous dispersion optical fiber; a rare earth-doped optical fiber as a gain medium; and a mode locking mechanism, in which at least the rare earth-doped optical fiber is included as the normal dispersion optical fiber, and a length of the rare earth-doped optical fiber is set shorter than that of the anomalous dispersion optical fiber.
摘要翻译：光纤激光器包括谐振器：正常色散光纤; 异常色散光纤; 作为增益介质的稀土掺杂光纤; 以及至少包含稀土掺杂光纤作为普通色散光纤的模式锁定机构，并且稀土掺杂光纤的长度被设定为短于异常色散光纤的长度。

10. 发明授权

US07826701B2 Optical fiber and optical waveguide 有权
标题翻译：光纤和光波导
公开(公告)号：US07826701B2
公开(公告)日：2010-11-02
申请号：US12187025
申请日：2008-08-06
申请人： Ryo Miyabe , Keiichi Aiso
发明人： Ryo Miyabe , Keiichi Aiso
IPC分类号： G02B6/032 , G02B6/02
CPC分类号： G02B6/02214 , G02B6/02366 , G02B6/02376 , G02B6/2551
摘要： An optical fiber includes a core region having a first refractive index and a cladding region having a second refractive index lower than the first refractive index on an outer circumference of the core region. The cladding region includes four holes formed to have a four-fold rotational symmetry with respect to a center axis around the core region in a longitudinal direction, such that a zero-dispersion wavelength is 900 nm to 1150 nm and a cutoff wavelength is equal to or shorter than 950 nm.
摘要翻译：光纤包括具有第一折射率的芯区域和在芯区域的外周上具有低于第一折射率的第二折射率的包层区域。包层区域包括四个孔，其形成为在纵向方向上相对于芯区域周围的中心轴线具有四重旋转对称，使得零色散波长为900nm至1150nm，截止波长等于或短于950nm。

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