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    Optical fiber, evaluation and fabrication method thereof
    4.
    发明申请
    Optical fiber, evaluation and fabrication method thereof 有权
    光纤，其评估及制造方法

    公开(公告)号：US20060013546A1

    公开(公告)日：2006-01-19

    申请号：US11178353

    申请日：2005-07-12

    申请人： Kazuhiko Kurusu ,  Hideya Moridaira ,  Yoshinori Ishida

    发明人： Kazuhiko Kurusu ,  Hideya Moridaira ,  Yoshinori Ishida

    IPC分类号： G02B6/02

    CPC分类号： C03C13/047 ,  C03C4/0042 ,  C03C25/607 ,  G02B6/02

    摘要： An optical fiber having a small increase in loss at a wavelength of approximately 1400 nm involved in a deuterium treatment is provided, and an evaluation method to decide whether an optical fiber is that having such a loss increase, and a fabrication method of an optical fiber having a small increase in such a loss are also provided. An optical fiber according to the present invention comprises a core composed of a silica glass doped with at least germanium and a cladding composed of a silica glass surrounding it. The optical fiber is exposed to an atmosphere containing hydrogen or deuterium to diffuse hydrogen molecules or deuterium molecules in the optical fiber, and after that, the outer periphery of the glass region of the optical fiber is etched to an outer diameter of 50 μm, and then the electron spin density of PORs is 1×1013 spins/g or less when the glass region is measured by the electron-spin resonance method.

    摘要翻译： 提供了涉及氘处理的波长约1400nm的损耗增加小的光纤，以及判断光纤是否具有这种损耗增加的评价方法，以及光纤的制造方法 也提供了这种损失的小幅增加。 根据本发明的光纤包括由至少掺杂锗的二氧化硅玻璃构成的芯和由围绕它的二氧化硅玻璃构成的包层。 将光纤暴露在含有氢或氘的气氛中以扩散光纤中的氢分子或氘分子，之后将光纤的玻璃区域的外周蚀刻到外径为50μm， 则当通过电子 - 自旋共振法测量玻璃面积时，POR的电子自旋密度为1×10 13个/ cm以下。

    Optical fiber and evaluation method thereof
    5.
    发明授权
    Optical fiber and evaluation method thereof 有权
    光纤及其评估方法

    公开(公告)号：US06944381B2

    公开(公告)日：2005-09-13

    申请号：US10411378

    申请日：2003-04-11

    申请人： Kazuhiko Kurusu ,  Hideya Moridaira ,  Masahide Kuwabara ,  Yoshinori Ishida

    发明人： Kazuhiko Kurusu ,  Hideya Moridaira ,  Masahide Kuwabara ,  Yoshinori Ishida

    IPC分类号： C03B37/027 ,  C03C25/60 ,  G02B6/02

    CPC分类号： C03C25/607 ,  C03B37/027 ,  C03B2205/42 ,  C03B2205/72 ,  G02B6/02

    摘要： An optical fiber characterized by a cutoff wavelength of 1310 nm or less, a transmission loss of 0.40 dB/km or less at the wavelength of 1385 nm before hydrogen ageing, a transmission loss of 0.40 dB/km or less in the wavelength range of 1310 nm to 1625 nm after hydrogen ageing, and an electron spin density of the Non-Bridging Oxygen Hole Center of 1×1013spins/g or less measured by the electron spin resonance method after the diameter of the optical fiber is made to be about 50 μm by etching in diluted hydrofluoric acid, that having high reliability of hydrogen-proof characteristic suitable for WDM transmission in 1310 nm to 1625 nm and the method of evaluating the optical fiber are offered.

    摘要翻译： 特征在于截止波长为1310nm以下的光纤，在氢老化前的1385nm波长的传输损耗为0.40dB / km以下，在1310的波长范围内的传输损耗为0.40dB / km以下 氢化老化后的nm至1625nm，并且通过电子自旋共振法测量的1×10 3个非桥接氧气孔中心的电子自旋密度/ g或更小，在光纤直径 通过在稀释的氢氟酸中蚀刻制成约50μm，具有适合于1310nm至1625nm的WDM透射的耐氢特性的可靠性高的可靠性以及评估光纤的方法。

    Optical fiber, evaluation and fabrication method thereof
    6.
    发明授权
    Optical fiber, evaluation and fabrication method thereof 有权
    光纤，其评估及制造方法

    公开(公告)号：US07164831B2

    公开(公告)日：2007-01-16

    申请号：US11178353

    申请日：2005-07-12

    申请人： Kazuhiko Kurusu ,  Hideya Moridaira ,  Yoshinori Ishida

    发明人： Kazuhiko Kurusu ,  Hideya Moridaira ,  Yoshinori Ishida

    IPC分类号： G02B6/02

    CPC分类号： C03C13/047 ,  C03C4/0042 ,  C03C25/607 ,  G02B6/02

    摘要： An optical fiber having a small increase in loss at a wavelength of approximately 1400 nm involved in a deuterium treatment is provided, and an evaluation method to decide whether an optical fiber is that having such a loss increase, and a fabrication method of an optical fiber having a small increase in such a loss are also provided. An optical fiber according to the present invention comprises a core composed of a silica glass doped with at least germanium and a cladding composed of a silica glass surrounding it. The optical fiber is exposed to an atmosphere containing hydrogen or deuterium to diffuse hydrogen molecules or deuterium molecules in the optical fiber, and after that, the outer periphery of the glass region of the optical fiber is etched to an outer diameter of 50 μm, and then the electron spin density of PORs is 1×1013 spins/g or less when the glass region is measured by the electron-spin resonance method.

    摘要翻译： 提供了涉及氘处理的波长约1400nm的损耗增加小的光纤，以及判断光纤是否具有这种损耗增加的评价方法，以及光纤的制造方法 也提供了这种损失的小幅增加。 根据本发明的光纤包括由至少掺杂锗的二氧化硅玻璃构成的芯和由围绕它的二氧化硅玻璃构成的包层。 将光纤暴露在含有氢或氘的气氛中以扩散光纤中的氢分子或氘分子，之后将光纤的玻璃区域的外周蚀刻到外径为50μm， 则当通过电子 - 自旋共振法测量玻璃面积时，POR的电子自旋密度为1×10 13个/ cm以下。

    Optical fiber and evaluation method thereof
    7.
    发明授权
    Optical fiber and evaluation method thereof 有权
    光纤及其评估方法

    公开(公告)号：US07142755B2

    公开(公告)日：2006-11-28

    申请号：US11132277

    申请日：2005-05-19

    申请人： Kazuhiko Kurusu ,  Hideya Moridaira ,  Masahide Kuwabara ,  Yoshinori Ishida

    发明人： Kazuhiko Kurusu ,  Hideya Moridaira ,  Masahide Kuwabara ,  Yoshinori Ishida

    IPC分类号： G02B6/02 ,  C03B37/07 ,  G01N21/00

    CPC分类号： C03C25/607 ,  C03B37/027 ,  C03B2205/42 ,  C03B2205/72 ,  G02B6/02

    摘要： An optical fiber characterized by a cutoff wavelength of 1310 nm or less, a transmission loss of 0.40 dB/km or less at the wavelength of 1385 nm before hydrogen ageing, a transmission loss of 0.40 dB/km or less in the wavelength range of 1310 nm to 1625 nm after hydrogen ageing, and an electron spin density of the Non-Bridging Oxygen Hole Center of 1×1013 spins/g or less measured by the electron spin resonance method after the diameter of the optical fiber is made to be about 50 μm by etching in diluted hydrofluoric acid, that having high reliability of hydrogen-proof characteristic suitable for WDM transmission in 1310 nm to 1625 nm and the method of evaluating the optical fiber are offered.

    摘要翻译： 特征在于截止波长为1310nm以下的光纤，在氢老化前的1385nm波长的传输损耗为0.40dB / km以下，在1310的波长范围内的传输损耗为0.40dB / km以下 氢化老化后的nm至1625nm，并且通过电子自旋共振法测量的1×10 3个非桥接氧气孔中心的电子自旋密度/ g或更小，在光纤直径 通过在稀释的氢氟酸中蚀刻制成约50μm，具有适合于1310nm至1625nm的WDM透射的耐氢特性的可靠性高的可靠性以及评估光纤的方法。

    Optical fiber and evaluation method thereof
    8.
    发明申请
    Optical fiber and evaluation method thereof 有权
    光纤及其评估方法

    公开(公告)号：US20050220430A1

    公开(公告)日：2005-10-06

    申请号：US11132277

    申请日：2005-05-19

    申请人： Kazuhiko Kurusu ,  Hideya Moridaira ,  Masahide Kuwabara ,  Yoshinori Ishida

    发明人： Kazuhiko Kurusu ,  Hideya Moridaira ,  Masahide Kuwabara ,  Yoshinori Ishida

    IPC分类号： C03B37/027 ,  C03C25/60 ,  G02B6/02

    CPC分类号： C03C25/607 ,  C03B37/027 ,  C03B2205/42 ,  C03B2205/72 ,  G02B6/02

    摘要： An optical fiber characterized by a cutoff wavelength of 1310 nm or less, a transmission loss of 0.40 dB/km or less at the wavelength of 1385 nm before hydrogen ageing, a transmission loss of 0.40 dB/km or less in the wavelength range of 1310 nm to 1625 nm after hydrogen ageing, and an electron spin density of the Non-Bridging Oxygen Hole Center of 1×1013 spins/g or less measured by the electron spin resonance method after the diameter of the optical fiber is made to be about 50 μm by etching in diluted hydrofluoric acid, that having high reliability of hydrogen-proof characteristic suitable for WDM transmission in 1310 nm to 1625 nm and the method of evaluating the optical fiber are offered.

    摘要翻译： 特征在于截止波长为1310nm以下的光纤，在氢老化前的1385nm波长的传输损耗为0.40dB / km以下，在1310的波长范围内的传输损耗为0.40dB / km以下 氢化老化后的nm至1625nm，并且通过电子自旋共振法测量的1×10 3个非桥接氧气孔中心的电子自旋密度/ g或更小，在光纤直径 通过在稀释的氢氟酸中蚀刻制成约50μm，具有适合于1310nm至1625nm的WDM透射的耐氢特性的可靠性高的可靠性以及评估光纤的方法。