公开(公告)号：US07164830B2

公开(公告)日：2007-01-16

申请号：US11128209

申请日：2005-05-13

申请人： Jiro Hiroishi ,  Ryo Miyabe ,  Ryuichi Sugizaki ,  Naomi Kumano

发明人： Jiro Hiroishi ,  Ryo Miyabe ,  Ryuichi Sugizaki ,  Naomi Kumano

IPC分类号： G02B6/02 ,  G02B6/024

CPC分类号： G02B6/03666 ,  G02B6/02028 ,  G02B6/02242 ,  G02B6/024 ,  G02B6/0281 ,  G02B6/03627 ,  G02B6/03644 ,  G02F1/365

摘要： The present invention provides an optical fiber of a high nonlinear characteristic which has low dispersion values in a wide wavelength region in the vicinity of a wavelength of 1550 nm. An excellent optical signal processing apparatus is realized by using this optical fiber, such as an optical wavelength converter and a pulse compressor. The optical fiber has characteristics; a dispersion slope at the wavelength of 1550 nm of −0.01 to 0.01 ps/nm2/km, an absolute value of dispersion at the wavelength of 1550 nm of 10 ps/nm/km or less, and a nonlinear constant at the wavelength of 1550 nm of 30×10−10/W or more. A polarization retaining maintaining members are uniquely applied.

摘要翻译： 本发明提供一种高非线性特性的光纤，在波长1550nm附近的宽波长区域中具有低色散值。 通过使用光纤如光波长转换器和脉冲压缩器来实现优良的光信号处理装置。 光纤具有特性; 波长1550nm处的色散斜率为-0.01至0.01ps / nm 2 / km，波长1550nm处的色散的绝对值为10ps / nm / km或更小，以及 在1550nm波长处的非线性常数为30×10 -10 / W以上。 一种偏振保持元件是独特的。

公开(公告)号：US06766087B2

公开(公告)日：2004-07-20

申请号：US10262957

申请日：2002-10-03

申请人： Jiro Hiroishi ,  Naomi Kumano ,  Ryuichi Sugizaki

发明人： Jiro Hiroishi ,  Naomi Kumano ,  Ryuichi Sugizaki

IPC分类号： G02B600

CPC分类号： C03C13/04 ,  G02B6/02028 ,  G02B6/02242 ,  G02B6/0281 ,  G02B6/03627 ,  G02B6/105

摘要： Disclosed is a nonlinear dispersion-shifted optical fiber, wherein a charomatic dispersion at a wavelength of 1550 nm is equal to a set value required for optical signal processing utilizing a nonlinear phenomenon, a dispersion slope at a wavelength of 1550 nm falls within a range of 0.001 to 0.1 ps/nm2/km, a margin of fluctuation of the charomatic dispersion in a longitudinal direction of the optical fiber at a wavelength of 1550 nm falls within a range of 0.01 to 3 ps/nm/km, and a nonlinear constant n2/Aeff at a wavelength of 1550 nm is not smaller than 15×10−10/W.

摘要翻译： 公开了一种非线性色散位移光纤，其中在1550nm的波长下的混杂色散等于利用非线性现象的光信号处理所需的设定值，波长1550nm处的色散斜率落在 0.001〜0.1ps / nm 2 / km时，波长1550nm处的光纤的长度方向的混浊度的波动幅度在0.01〜3ps / nm / km的范围内，a 在1550nm波长处的非线性常数n2 / Aeff不小于15×10 -10 / W。

公开(公告)号：US20050213907A1

公开(公告)日：2005-09-29

申请号：US11128209

申请日：2005-05-13

申请人： Jiro Hiroishi ,  Ryo Miyabe ,  Ryuichi Sugizaki ,  Naomi Kumano

发明人： Jiro Hiroishi ,  Ryo Miyabe ,  Ryuichi Sugizaki ,  Naomi Kumano

IPC分类号： G02B6/02 ,  G02B6/024 ,  G02B6/028 ,  G02B6/036 ,  G02F1/365

CPC分类号： G02B6/03666 ,  G02B6/02028 ,  G02B6/02242 ,  G02B6/024 ,  G02B6/0281 ,  G02B6/03627 ,  G02B6/03644 ,  G02F1/365

摘要： The present invention provides an optical fiber of a high nonlinear characteristic which has low dispersion values in a wide wavelength region in the vicinity of a wavelength of 1550 nm. An excellent optical signal processing apparatus is realized by using this optical fiber, such as an optical wavelength converter and a pulse compressor. The optical fiber has characteristics; a dispersion slope at the wavelength of 1550 nm of −0.01 to 0.01 ps/nm2/km, an absolute value of dispersion at the wavelength of 1550 nm of 10 ps/nm/km or less, and a nonlinear constant at the wavelength of 1550 nm of 30×10−10/W or more. A polarization retaining maintaining members are uniquely applied.

摘要翻译： 本发明提供一种高非线性特性的光纤，在波长1550nm附近的宽波长区域中具有低色散值。 通过使用光纤如光波长转换器和脉冲压缩器来实现优良的光信号处理装置。 光纤具有特性; 波长1550nm处的色散斜率为-0.01至0.01ps / nm 2 / km，波长1550nm处的色散的绝对值为10ps / nm / km或更小，以及 在1550nm波长处的非线性常数为30×10 -10 / W以上。 一种偏振保持元件是独特的。

公开(公告)号：US20100326139A1

公开(公告)日：2010-12-30

申请号：US12875167

申请日：2010-09-03

申请人： Ryuichi SUGIZAKI ,  Naomi Kumano ,  Iwao Shimotakahara ,  Harumi Inaba ,  Takeshi Yagi ,  Tomoya Shimizu ,  Toshio Kurashima ,  Kazuhide Nakajima

发明人： Ryuichi SUGIZAKI ,  Naomi Kumano ,  Iwao Shimotakahara ,  Harumi Inaba ,  Takeshi Yagi ,  Tomoya Shimizu ,  Toshio Kurashima ,  Kazuhide Nakajima

IPC分类号： C03B37/012

CPC分类号： C03B37/01231 ,  C03B37/0122 ,  C03B37/01234 ,  C03B2203/14 ,  C03B2203/42

摘要： An optical fiber preform manufacturing method includes: supporting a drilling jig in a radial direction of a preform that is cylinder-shaped; moving the drilling jig in a longitudinal direction of the preform; and forming a plurality of slits each extending in the longitudinal direction and each directed from an outer side of the preform toward a center the preform, and a plurality of holes each extending in the longitudinal direction and each connecting with an end of one of the plurality of slits in a depth direction of the one of the plurality of slits.

摘要翻译： 一种光纤预制棒的制造方法，包括：在圆筒状的预成型件的径向上支撑钻孔夹具; 沿着预成型件的纵向方向移动钻具; 并且形成多个狭缝，每个狭缝沿长度方向延伸，每个狭缝从预成型件的外侧朝向预成型件的中心，以及多个孔，每个孔沿纵向延伸并且各自与多个孔中的一个连接 在所述多个狭缝中的一个狭缝的深度方向上的狭缝。

公开(公告)号：US08181487B2

公开(公告)日：2012-05-22

申请号：US12875167

申请日：2010-09-03

申请人： Ryuichi Sugizaki ,  Naomi Kumano ,  Iwao Shimotakahara ,  Harumi Inaba ,  Takeshi Yagi ,  Tomoya Shimizu ,  Toshio Kurashima ,  Kazuhide Nakajima

发明人： Ryuichi Sugizaki ,  Naomi Kumano ,  Iwao Shimotakahara ,  Harumi Inaba ,  Takeshi Yagi ,  Tomoya Shimizu ,  Toshio Kurashima ,  Kazuhide Nakajima

IPC分类号： C03B37/022

CPC分类号： C03B37/01231 ,  C03B37/0122 ,  C03B37/01234 ,  C03B2203/14 ,  C03B2203/42

摘要： An optical fiber preform manufacturing method includes: supporting a drilling jig in a radial direction of a preform that is cylinder-shaped; moving the drilling jig in a longitudinal direction of the preform; and forming a plurality of slits each extending in the longitudinal direction and each directed from an outer side of the preform toward a center the preform, and a plurality of holes each extending in the longitudinal direction and each connecting with an end of one of the plurality of slits in a depth direction of the one of the plurality of slits.

摘要翻译： 一种光纤预制棒的制造方法，包括：在圆筒状的预成型件的径向上支撑钻孔夹具; 沿着预成型件的纵向方向移动钻具; 并且形成多个狭缝，每个狭缝沿长度方向延伸，每个狭缝从预成型件的外侧朝向预成型件的中心，以及多个孔，每个孔沿纵向延伸并且各自与多个孔中的一个连接 在所述多个狭缝中的一个狭缝的深度方向上的狭缝。

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。

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。

公开(公告)号：US07519255B2

公开(公告)日：2009-04-14

申请号：US11665538

申请日：2006-09-22

申请人： Naomi Kumano ,  Ryuichi Sugizaki

发明人： Naomi Kumano ,  Ryuichi Sugizaki

IPC分类号： G02B6/36

CPC分类号： G02B6/03627 ,  G02B6/02019 ,  G02B6/02266 ,  G02B6/03611

摘要： An inner core has a first refractive index. An outer core having a second refractive index lower than the first refractive index is formed on outer circumference of the inner core. A cladding having a refractive index that is higher than the second refractive index and lower than the first refractive index is formed on outer circumference of the outer core. A diameter of the inner core is enlarged, the second refractive index is decreased, and a center core having a refractive index lower than the first refractive index is formed at a center of the inner core, to increase an effective core area while maintaining wavelength dispersion and bending loss.

摘要翻译： 内芯具有第一折射率。 在内芯的外圆周上形成具有低于第一折射率的第二折射率的外芯。 在外芯的外周形成具有比第二折射率高且低于第一折射率的折射率的折射率的包层。 内芯的直径扩大，第二折射率降低，并且在内芯的中心处形成折射率低于第一折射率的中心纤芯，以增加有效核心区域，同时保持波长色散 和弯曲损耗。

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。

公开(公告)号：US20080063348A1

公开(公告)日：2008-03-13

申请号：US11665538

申请日：2006-09-22

申请人： Naomi Kumano ,  Ryuichi Sugizaki

发明人： Naomi Kumano ,  Ryuichi Sugizaki

IPC分类号： G02B6/036

CPC分类号： G02B6/03627 ,  G02B6/02019 ,  G02B6/02266 ,  G02B6/03611

摘要： An inner core has a first refractive index. An outer core having a second refractive index lower than the first refractive index is formed on outer circumference of the inner core. A cladding having a refractive index that is higher than the second refractive index and lower than the first refractive index is formed on outer circumference of the outer core. A diameter of the inner core is enlarged, the second refractive index is decreased, and a center core having a refractive index lower than the first refractive index is formed at a center of the inner core, to increase an effective core area while maintaining wavelength dispersion and bending loss.

摘要翻译： 内芯具有第一折射率。 在内芯的外圆周上形成具有低于第一折射率的第二折射率的外芯。 在外芯的外周形成具有比第二折射率高且低于第一折射率的折射率的折射率的包层。 内芯的直径扩大，第二折射率降低，并且在内芯的中心处形成折射率低于第一折射率的中心纤芯，以增加有效核心区域，同时保持波长色散 和弯曲损耗。