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1. 发明申请

US20100150507A1 HOLEY FIBER 审中-公开
标题翻译： HOLEY纤维
公开(公告)号：US20100150507A1
公开(公告)日：2010-06-17
申请号：US12649388
申请日：2009-12-30
申请人： Masanori TAKAHASHI , Katsunori Imamura , Kazunori Mukasa , Takeshi Yagi
发明人： Masanori TAKAHASHI , Katsunori Imamura , Kazunori Mukasa , Takeshi Yagi
IPC分类号： G02B6/032
CPC分类号： G02B6/02009 , G02B6/02366
摘要： A holey fiber includes a core portion and a cladding portion positioned around a periphery of the core portion. The cladding portion includes 12 to 36 holes that are arranged circularly at a radius of 36 to 48 micrometers around a center of the core portion and that each have a hole diameter of 2.0 to 11.0 micrometers. At a wavelength of 1064 nanometers the holey fiber substantially performs a single-mode operation and has an effective core area equal to or greater than 1500 μm2.
摘要翻译：多孔纤维包括芯部和围绕芯部的周边定位的包层部分。包层部分包括12至36个孔，其围绕芯部的中心以36至48微米的圆周圆周布置，并且每个具有2.0至11.0微米的孔直径。在1064纳米的波长下，多孔光纤基本上进行单模操作，并且具有等于或大于1500μm2的有效芯面积。

2. 发明申请

US20110091176A1 HOLEY FIBERS 审中-公开
公开(公告)号：US20110091176A1
公开(公告)日：2011-04-21
申请号：US12938104
申请日：2010-11-02
申请人： Masanori TAKAHASHI , Katsunori Imamura , Kazunori Mukasa , Takeshi Yagi
发明人： Masanori TAKAHASHI , Katsunori Imamura , Kazunori Mukasa , Takeshi Yagi
IPC分类号： G02B6/032
CPC分类号： G02B6/02347 , G02B6/02019 , G02B6/02361 , G02B6/02366
摘要： A holey fiber with significantly large effective core area is provided. The holey fiber comprises a core portion and a cladding portion at the circumference of the core portion. The cladding portion has plurality of holes distributed to shape triangular lattices around the core portion; wherein d/Λ is less than or equal to 0.42, the diameter of the holey fiber is larger than or equal to 580 μm, an effective core area is larger than or equal to 15000 μm2 at 1064 nm and a confinement loss is less than or equal to 0.1 dB/m at 1064 nm; where d is the hole diameter in μm and Λ is a lattice constant of the triangular lattice in μm.

3. 发明申请

US20110026890A1 HOLEY FIBERS 审中-公开
公开(公告)号：US20110026890A1
公开(公告)日：2011-02-03
申请号：US12846113
申请日：2010-07-29
申请人： Masanori TAKAHASHI , Katsunori Imamura , Kazunori Mukasa , Takeshi Yagi
发明人： Masanori TAKAHASHI , Katsunori Imamura , Kazunori Mukasa , Takeshi Yagi
IPC分类号： G02B6/032
CPC分类号： G02B6/02347 , G02B6/02019 , G02B6/02361
摘要： A holey fiber with significantly large effective core area is provided.The holey fiber comprises a core portion and a cladding portion at the circumference of the core portion. The cladding portion has plurality of holes distributed to shape triangular lattices around the core portion; wherein d/Λ is less than or equal to 0.42, the diameter of the holey fiber is larger than or equal to 580 μm, an effective core area is larger than or equal to 15000 μm2 at 1064 nm and a confinement loss is less than or equal to 0.1 dB/m at 1064 nm; where d is the hole diameter in μm and Λ is a lattice constant of the triangular lattice in μm.
摘要翻译：提供了一种具有明显大的有效核心区域的多孔光纤。多孔纤维包括在芯部的圆周处的芯部分和包层部分。包层部分具有分布形成围绕芯部的三角形格子的多个孔; 其中d /Λ小于或等于0.42，多孔纤维的直径大于或等于580μm，有效核心面积在1064nm处大于或等于15000μm2，限制损耗小于或等于在1064nm处等于0.1dB / m; 其中d是以μm表示的孔直径，Λ是三角形晶格的晶格常数，单位为μm。

4. 发明申请

US20080063349A1 Optical fiber and optical transmission line and optical communication system including such optical fiber 审中-公开
标题翻译：光纤和光传输线以及包括这种光纤的光通信系统
公开(公告)号：US20080063349A1
公开(公告)日：2008-03-13
申请号：US11976780
申请日：2007-10-29
申请人： Naomi Kumano , Ryuichi Sugizaki , Kazunori Mukasa , Takeshi Yagi
发明人： Naomi Kumano , Ryuichi Sugizaki , Kazunori Mukasa , Takeshi Yagi
IPC分类号： G02B6/036
CPC分类号： G02B6/03688 , G02B6/02009 , G02B6/02028 , G02B6/02233 , G02B6/02238 , G02B6/02242 , G02B6/02271 , G02B6/02285 , G02B6/0281 , G02B6/03627 , G02B6/03644 , G02B6/03661 , G02B6/03677 , G02B6/29376 , H04B10/25253
摘要： Optical fibers to form an optical transmission line suitable for WDM transmission in a wide-spreading wavelength band, having the following characteristics and parameters: a dispersion in absolute value of 0.5 ps/nm/km to 9 ps/nm/km in a wavelength band of 1430 nm to 1625 nm, a dispersion slope in absolute value of 0.04 ps/nm2/km or less at a wavelength of 1550 nm, a mode field diameter of 7 μm or less at a wavelength of 1550 nm and a cable cutoff wavelength of less than 1430nm; core 11 surrounded by cladding 7, core 11 being at least two-layered (first layer 1 at the center and second layer 2 surrounding the first layer; relative refractive index of glass layer Δ1 with reference to the cladding being adjusted to not less than 0.6 but not more than 1.6%, relative refractive index of second layer Δ2 with reference to the cladding being adjusted to a negative value.
摘要翻译：用于形成适用于宽扩频波段中的WDM传输的光传输线的光纤，具有以下特性和参数：波长带中绝对值的偏差为0.5ps / nm / km至9ps / nm / km 为1430nm至1625nm，波长1550nm处的绝对值为0.04ps / nm 2 / km或更小的色散斜率，波长为10μm以下的模场直径为7μm以下 1550nm，电缆截止波长小于1430nm; 芯11由包层7包围，芯11为至少两层（中心为第一层1，围绕第一层为第二层2;玻璃层Delta 1相对于包层的相对折射率调整为不小于 0.6但不超过1.6％，相对于包层将第二层Delta 2的相对折射率调整为负值。

5. 发明授权

US07505659B2 Optical fiber and optical transmission line and optical communication system including such optical fiber 有权
标题翻译：光纤和光传输线以及包括这种光纤的光通信系统
公开(公告)号：US07505659B2
公开(公告)日：2009-03-17
申请号：US12213509
申请日：2008-06-20
申请人： Naomi Kumano , Ryuichi Sugizaki , Kazunori Mukasa , Takeshi Yagi
发明人： Naomi Kumano , Ryuichi Sugizaki , Kazunori Mukasa , Takeshi Yagi
IPC分类号： G02B6/00
CPC分类号： G02B6/03688 , G02B6/02009 , G02B6/02028 , G02B6/02233 , G02B6/02238 , G02B6/02242 , G02B6/02271 , G02B6/02285 , G02B6/0281 , G02B6/03627 , G02B6/03644 , G02B6/03661 , G02B6/03677 , G02B6/29376 , H04B10/25253
摘要： Optical fibers to form an optical transmission line suitable for WDM transmission in a wide-spreading wavelength band, having the following characteristics and parameters: a dispersion in absolute value of 0.5 ps/nm/km to 9 ps/nm/km in a wavelength band of 1430 nm to 1625 nm, a dispersion slope in absolute value of 0.04 ps/nm2/km or less at a wavelength of 1550 nm, a mode field diameter of 7 μm or less at a wavelength of 1550 nm and a cable cutoff wavelength of less than 1430 nm; core 11 surrounded by cladding 7, core 11 being at least two-layered (first layer 1 at the center and second layer 2 surrounding the first layer; relative refractive index of glass layer Δ1 with reference to the cladding being adjusted to not less than 0.6 but not more than 1.6%, relative refractive index of second layer Δ2 with reference to the cladding being adjusted to a negative value.
摘要翻译：用于形成适用于宽扩频波段中的WDM传输的光传输线的光纤，具有以下特性和参数：波长带中绝对值的偏差为0.5ps / nm / km至9ps / nm / km 为1450nm至1625nm，波长1550nm处的绝对值为0.04ps / nm 2 / km以下的色散斜率，波长1550nm的模场直径为7μm以下，电缆截止波长为小于1430nm; 芯11由包层7包围，芯11为至少两层（中心为第一层1，围绕第一层的第二层2;玻璃层Delta1相对于包层的相对折射率调整为不小于0.6 但不超过1.6％，相对于包层将第二层Delta2的相对折射率调整为负值。

6. 发明申请

US20080292257A1 Optical fiber and optical transmission line and optical communication system including such optical fiber 有权
标题翻译：光纤和光传输线以及包括这种光纤的光通信系统
公开(公告)号：US20080292257A1
公开(公告)日：2008-11-27
申请号：US12213509
申请日：2008-06-20
申请人： Naomi Kumano , Ryuichi Sugizaki , Kazunori Mukasa , Takeshi Yagi
发明人： Naomi Kumano , Ryuichi Sugizaki , Kazunori Mukasa , Takeshi Yagi
IPC分类号： G02B6/036
CPC分类号： G02B6/03688 , G02B6/02009 , G02B6/02028 , G02B6/02233 , G02B6/02238 , G02B6/02242 , G02B6/02271 , G02B6/02285 , G02B6/0281 , G02B6/03627 , G02B6/03644 , G02B6/03661 , G02B6/03677 , G02B6/29376 , H04B10/25253
摘要： Optical fibers to form an optical transmission line suitable for WDM transmission in a wide-spreading wavelength band, having the following characteristics and parameters: a dispersion in absolute value of 0.5 ps/nm/km to 9 ps/nm/km in a wavelength band of 1430 nm to 1625 nm, a dispersion slope in absolute value of 0.04 ps/nm2/km or less at a wavelength of 1550 nm, a mode field diameter of 7 μm or less at a wavelength of 1550 nm and a cable cutoff wavelength of less than 1430 nm; core 11 surrounded by cladding 7, core 11 being at least two-layered (first layer 1 at the center and second layer 2 surrounding the first layer; relative refractive index of glass layer Δ1 with reference to the cladding being adjusted to not less than 0.6 but not more than 1.6%, relative refractive index of second layer Δ2 with reference to the cladding being adjusted to a negative value.
摘要翻译：用于形成适用于宽扩频波段中的WDM传输的光传输线的光纤，具有以下特性和参数：波长带中绝对值的偏差为0.5ps / nm / km至9ps / nm / km 为1450nm至1625nm，波长1550nm处的绝对值为0.04ps / nm 2 / km以下的色散斜率，波长1550nm的模场直径为7μm以下，电缆截止波长为小于1430nm; 芯11由包层7包围，芯11为至少两层（中心为第一层1，围绕第一层的第二层2;玻璃层Delta1相对于包层的相对折射率调整为不小于0.6 但不超过1.6％，相对于包层将第二层Delta2的相对折射率调整为负值。

7. 发明申请

US20090252470A1 OPTICAL FIBERS AND OPTICAL TRANSMISSION SYSTEMS 有权
公开(公告)号：US20090252470A1
公开(公告)日：2009-10-08
申请号：US12429924
申请日：2009-04-24
申请人： Kazunori Mukasa
发明人： Kazunori Mukasa
IPC分类号： G02B6/036
CPC分类号： G02B6/03644 , G02B6/02266 , G02B6/03627
摘要： Optical fibers and optical transmission systems, which are capable of broadband and large capacity single-mode optical transmission, and have low macrobends are provided.The optical fiber made from pure silica comprising a core region, a cladding region at the circumference of the core region a coating layer made from a resin at the circumference of the cladding region, and having a cutoff wavelength of shorter than 1530 nm, and positive dispersion at 1550 nm, bending loss of less than 10 dB/m at a bending diameter of 20 mm, and an effective core area of 120 μm2.

8. 发明授权

US07085462B2 Optical fiber, optical fiber module and optical amplifier 失效
标题翻译：光纤，光纤模块和光放大器
公开(公告)号：US07085462B2
公开(公告)日：2006-08-01
申请号：US10309249
申请日：2002-12-04
申请人： Kazunori Mukasa
发明人： Kazunori Mukasa
IPC分类号： G02B6/02
CPC分类号： G02B6/0281 , G02B6/02004 , G02B6/02242 , G02B6/02261 , G02B6/03627 , G02B6/03644
摘要： An optical fiber whose value of a ratio of a dispersion to the dispersion slope ranges between 50 nm and 150 nm at the wavelength of 1590 nm. Also, a dispersion compensated optical fiber includes a depressed layer formed of at least one of a plurality of core layers covering the outer circumference of the center core. The depressed layer has −0.7% or less of a relative refractive index difference with the clad. The dispersion compensated optical fiber has the ratio of the dispersion to the dispersion slope falling within a range of between 30 nm and 80 nm at the wavelength of 1550 nm, or a dispersion value not larger than −20 ps/nm/km, a dispersion slope not larger than −0.05 ps/nm2/km, and an effective core cross sectional area Aeff falling within a range of between 8 and 13 μm2.
摘要翻译：在1590nm的波长处，色散与色散斜率的比值的值在50nm和150nm之间的光纤。此外，色散补偿光纤包括由覆盖中心芯的外周的多个芯层中的至少一个形成的凹陷层。凹陷层与包层的相对折射率差为-0.7％以下。色散补偿光纤的波长为1550nm时的色散与色散斜率的比率为30nm〜80nm，色散值为-20ps / nm / km以下，色散斜率不大于-0.05ps / nm 2 / km，有效芯横截面积A eff处于8和13μm之间的范围内。

9. 发明授权

US06879763B2 Reverse dispersion optical fiber and optical transmission line using reverse dispersion optical fiber 有权
标题翻译：反向色散光纤和光传输线使用反向色散光纤
公开(公告)号：US06879763B2
公开(公告)日：2005-04-12
申请号：US10186740
申请日：2002-07-02
申请人： Kazunori Mukasa
发明人： Kazunori Mukasa
IPC分类号： G02B6/028 , G02B6/036 , G02B6/22 , G02B6/16
CPC分类号： G02B6/02009 , G02B6/02238 , G02B6/02252 , G02B6/02285 , G02B6/0281 , G02B6/03644 , G02B6/29377
摘要： A reverse dispersion optical fiber having a small waveform distortion caused by non-linearity wherein an effective core area is made at least 50 μm2 and a dispersion at a wavelength of the 1.55 μm band is made not more than −10 ps/nm/km and a dispersion management optical transmission line having a small waveform distortion obtained by connecting a positive dispersion optical fiber and that reverse dispersion optical fiber in that order along a direction of signal transmission and having a total dispersion of substantially zero.
摘要翻译：具有由非线性引起的具有小的波形失真的反向色散光纤，其中有效核心区域至少为50mum2，而在1.55mum波段的波长处的色散不大于-10ps / nm / km，以及具有通过沿着信号传输方向依次连接正色散光纤和该反向色散光纤并具有基本为零的总色散而获得的小波形失真的色散管理光传输线。

10. 发明授权

US06810186B2 Optical transmission line 有权
公开(公告)号：US06810186B2
公开(公告)日：2004-10-26
申请号：US10781719
申请日：2004-02-20
申请人： Kazunori Mukasa
发明人： Kazunori Mukasa
IPC分类号： G02B622
CPC分类号： G02B6/02009 , G02B6/02004 , G02B6/02252 , G02B6/02261 , G02B6/02266 , G02B6/02271 , G02B6/02276 , G02B6/0228 , G02B6/02285 , G02B6/0281 , G02B6/03611 , G02B6/03627 , G02B6/03633 , G02B6/03644 , G02B6/29377 , H04B10/25253
摘要： An optical transmission line according to the present invention is an optical transmission line which is able to control both the waveform distortion due to the non-linearity phenomenon and the waveform distortion due to dispersion. The optical transmission line is formed by connecting, in series, the first optical fiber (8), of which the dispersion value in the set wavelength band within the 1.5 &mgr;m wavelength band is 6 to 14 ps/nm/km, and the second optical fiber (9), of which the dispersion value in said set wavelength band is −14 to −6 ps/nm/km. The dispersion slopes of the first optical fiber (8) and the second optical fiber (9) are of mutually opposite symbols. Light transmitted from an optical transmitter (11) enters the first optical fiber (8) and light which has been transmitted through the first optical fiber (8) enters the second optical fiber (9). The absolute value of the dispersion in the 1.5 &mgr;m wavelength band of each of the optical fibers (8) and (9) is set to be 6 ps/nm/km or more so as to control the four light wave mixture and said absolute value is set to be 14 ps/nm/km or less so as to control a local dispersion, in order to set at approximately zero, for the entire optical transmission line, both the dispersion value and the dispersion slope in said set wavelength band.

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