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1. 发明专利

DE69824460D1 未知
公开(公告)号：DE69824460D1
公开(公告)日：2004-07-22
申请号：DE69824460
申请日：1998-02-13
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OHISHI YASUTAKE , MORI ATSUSHI , YAMADA MAKOTO , ONO HIROTAKA , KANAMORI TERUTOSHIC O NTT INTE , SHIMADA TOSHIYUKI
IPC分类号： A61F2/06 , A61F2/24 , C03C3/00 , C03C3/12 , C03C4/00 , C03C13/04 , G02B6/36 , G02B6/38 , G09B19/20 , H01S3/067 , H01S3/16 , H01S3/17 , H01S3/23 , H04B10/297 , H01S3/06
摘要： A tellurite glass as a glass material of optical fiber (104) and optical waveguide has a composition of 0 2 O 3 ≤ 20 (mole %), 0 ≤ Na 2 O ≤ 35 (mole %), 0 ≤ ZnO ≤ 35 (mole %), and 55 ≤ TeO 2 ≤ 90 (mole %). The tellurite glass allows an optical amplifier and a laser device that have broadband and low-noise characteristics. In a splicing structure of non silica-based optical fiber (as a first fiber) (301) and a silica-based optical fiber (as a second fiber) (302), optical axes (301a, 302a) of the first and second optical fibers (301, 302) are held at different angles θ 1 and θ 2 (θ 1 ≠θ 2 ) respectively from a vertical axis of a boundary surface between their spliced ends, and a relationship between the angles θ 1 and θ 2 satisfies Snell's law represented by an equation of sin θ 1 / sin θ 2 = n 2 / n 1 (where n 1 is a refractive index of the first optical fiber and n 2 is a refractive index of the second optical fiber) at the time of splicing the first and second optical fibers (301, 302).

2. 发明专利

DE69835466D1 未知
公开(公告)号：DE69835466D1
公开(公告)日：2006-09-14
申请号：DE69835466
申请日：1998-02-13
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OHISHI YASUTAKE , ONO HIROTAKA , MORI ATSUSHI , KANAMORI TERUTOSHI , YAMADA MAKOTO , SHIMADA TOSHIYUKI
IPC分类号： C03C3/12 , A61F2/06 , A61F2/24 , C03C3/00 , C03C4/00 , C03C13/04 , G02B6/36 , G02B6/38 , G09B19/20 , H01S3/06 , H01S3/067 , H01S3/16 , H01S3/17 , H01S3/23 , H04B10/297
摘要： A tellurite glass as a glass material of optical fiber (104) and optical waveguide has a composition of 0 2 O 3 ≤ 20 (mole %), 0 ≤ Na 2 O ≤ 35 (mole %), 0 ≤ ZnO ≤ 35 (mole %), and 55 ≤ TeO 2 ≤ 90 (mole %). The tellurite glass allows an optical amplifier and a laser device that have broadband and low-noise characteristics. In a splicing structure of non silica-based optical fiber (as a first fiber) (301) and a silica-based optical fiber (as a second fiber) (302), optical axes (301a, 302a) of the first and second optical fibers (301, 302) are held at different angles θ 1 and θ 2 (θ 1 ≠θ 2 ) respectively from a vertical axis of a boundary surface between their spliced ends, and a relationship between the angles θ 1 and θ 2 satisfies Snell's law represented by an equation of sin θ 1 / sin θ 2 = n 2 / n 1 (where n 1 is a refractive index of the first optical fiber and n 2 is a refractive index of the second optical fiber) at the time of splicing the first and second optical fibers (301, 302).

3. 发明专利

CA2593570A1 TELLURITE GLASS, OPTICAL AMPLIFIER, AND LIGHT SOURCE 未知
公开(公告)号：CA2593570A1
公开(公告)日：1998-08-14
申请号：CA2593570
申请日：1998-02-13
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： SHIMADA TOSHIYUKI , KANAMORI TERUTOSHI , ONO HIROTAKA , MORI ATSUSHI , YAMADA MAKOTO , OHISHI YASUTAKE
IPC分类号： G02B1/00 , G02B1/02 , G02B6/02 , G02B6/255 , H04B10/29

4. 发明专利

CA2229348A1 TELLURITE GLASS, OPTICAL AMPLIFIER, AND LIGHT SOURCE 未知
公开(公告)号：CA2229348A1
公开(公告)日：1998-08-14
申请号：CA2229348
申请日：1998-02-13
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MORI ATSUSHI , OHISHI YASUTAKE , YAMADA MAKOTO , ONO HIROTAKA , SHIMADA TOSHIYUKI , KANAMORI TERUTOSHI
IPC分类号： A61F2/06 , A61F2/24 , C03C3/00 , C03C3/12 , C03C4/00 , C03C13/04 , G02B6/36 , G02B6/38 , G09B19/20 , H01S3/067 , H01S3/16 , H01S3/17 , H01S3/23 , H04B10/297 , G02B1/00 , G02B6/16 , H04B10/17 , G02B6/255
摘要： A tellurite glass as a glass material of optical fiber and optical waveguide has a composition of 0

5. 发明专利

DK2919335T3 FORSTÆRKENDE OPTISK FIBER OG OPTISK FORSTÆRKER 未知
公开(公告)号：DK2919335T3
公开(公告)日：2018-05-22
申请号：DK13853089
申请日：2013-10-31
申请人： FUJIKURA LTD , UNIV OSAKA PREFECT PUBLIC CORP , NATIONAL UNIV CORPORATION SHIMANE UNIV , NIPPON TELEGRAPH & TELEPHONE
发明人： MATSUO SHOICHIRO , TAKENAGA KATSUHIRO , ICHII KENTARO , ONO HIROTAKA , TSUJIKAWA KYOUZOU , YAMADA MAKOTO , MASUDA HIROJI
IPC分类号： H01S3/067 , G02B6/02 , G02B6/036 , G02B6/04 , H01S3/094 , H01S3/23

6. 发明专利

DE60209048T8 未知
公开(公告)号：DE60209048T8
公开(公告)日：2007-04-05
申请号：DE60209048
申请日：2002-03-08
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MASUDA HIROJI , ONO HIROTAKA , SHIMIZU MAKOTO
IPC分类号： H01S3/30 , H01S3/094
摘要： The present invention relates to a white light source. This white light source comprises a plurality of amplified spontaneous emission light generating sections each comprising at least an active fiber. At least two of the amplified spontaneous emission light generating sections are connected together in series. The plurality of amplified spontaneous emission light generating sections generate amplified spontaneous emission lights having at least partially overlapping wavelength ranges. Furthermore, a white light source of the present invention includes amplified spontaneous emission light generating sections each comprising at least an active fiber. At least one of the amplified spontaneous emission light generating sections comprises a mirror. If the white light source includes a plurality of amplified spontaneous emission light generating sections, at least two of the plurality of amplified spontaneous emission light generating sections are connected together in series to generate amplified spontaneous emission lights having at least partially overlapping wavelength ranges.

7. 发明专利

DE69833283T2 未知
公开(公告)号：DE69833283T2
公开(公告)日：2006-08-10
申请号：DE69833283
申请日：1998-02-13
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OHISHI YASUTAKE , YAMADA MAKOTO , KANAMORI TERUTOSHI , MORI ATSUSHI , ONO HIROTAKA , SHIMADA TOSHIYUKI
IPC分类号： C03C3/12 , A61F2/06 , A61F2/24 , C03C3/00 , C03C4/00 , C03C13/04 , G02B6/36 , G02B6/38 , G09B19/20 , H01S3/06 , H01S3/067 , H01S3/16 , H01S3/17 , H01S3/23 , H04B10/297
摘要： A tellurite glass as a glass material of optical fiber (104) and optical waveguide has a composition of 0 2 O 3 ≤ 20 (mole %), 0 ≤ Na 2 O ≤ 35 (mole %), 0 ≤ ZnO ≤ 35 (mole %), and 55 ≤ TeO 2 ≤ 90 (mole %). The tellurite glass allows an optical amplifier and a laser device that have broadband and low-noise characteristics. In a splicing structure of non silica-based optical fiber (as a first fiber) (301) and a silica-based optical fiber (as a second fiber) (302), optical axes (301a, 302a) of the first and second optical fibers (301, 302) are held at different angles θ 1 and θ 2 (θ 1 ≠θ 2 ) respectively from a vertical axis of a boundary surface between their spliced ends, and a relationship between the angles θ 1 and θ 2 satisfies Snell's law represented by an equation of sin θ 1 / sin θ 2 = n 2 / n 1 (where n 1 is a refractive index of the first optical fiber and n 2 is a refractive index of the second optical fiber) at the time of splicing the first and second optical fibers (301, 302).

8. 发明公开

EP2919334A4 AMPLIFYING OPTICAL FIBER AND OPTICAL AMPLIFIER 审中-公开
标题翻译： VERSTÄRKENDEOPTISCHE FASER UND OPTISCHERVERSTÄRKER
公开(公告)号：EP2919334A4
公开(公告)日：2016-07-27
申请号：EP13852847
申请日：2013-10-31
申请人： FUJIKURA LTD , NIPPON TELEGRAPH & TELEPHONE , UNIV OSAKA PREFECT PUBLIC CORP , NAT UNIV CORP SHIMANE UNIV
发明人： MATSUO SHOICHIRO , TAKENAGA KATSUHIRO , ICHI I KENTARO , ONO HIROTAKA , TSUJIKAWA KYOUZOU , YAMADA MAKOTO , MASUDA HIROJI
IPC分类号： H01S3/067 , G02B6/02 , G02B6/036 , G02B6/04 , H01S3/091 , H01S3/094 , H01S3/23
CPC分类号： H01S3/06754 , G02B6/02042 , G02B6/03605 , G02B6/03611 , H01S3/06729 , H01S3/06733 , H01S3/06737 , H01S3/091 , H01S3/094007 , H01S3/2383
摘要： In the present invention, a plurality of cores (51) is disposed around the center axis of a first cladding (52) in the state in which a center axis distance is equal between cores adjacent to each other. The first cladding (52) has a two-layer structure formed of a solid inner layer (52A) passed through the center axis of the first cladding (52) and an outer layer (52B) enclosing the inner layer (52A) and the plurality of cores (51) with no gap. A refractive index n1 of the core (51) is provided higher than refractive indexes (n 2A ) and (n 2B ) of the inner layer (52A) and the outer layer (52B), the refractive indexes (n2A) and (n2B) of the inner layer (52A) and the outer layer (52B) are provided higher than a refractive index n3 of the second cladding 53, and the refractive index (n 2A ) of the inner layer (52A) is provided lower than the refractive index (n 2B ) of the outer layer (52B).
摘要翻译：在本发明中，在彼此相邻的芯之间的中心轴距离相等的状态下，在第一包层（52）的中心轴线附近设置多个芯（51）。第一包层（52）具有由穿过第一包层（52）的中心轴线的实心内层（52A）和包围内层（52A）的外层（52B）形成的双层结构，的芯部（51）。内层（52A）和外层（52B）的折射率（n2A）和（n2B）的折射率（n 2A）和（n 2B）的折射率（n2A）和（n2B）的内层（52A）和外层（52B）的折射率（n 2A）比第二包层53的折射率n3高，并且内层（52A）的折射率（n 2A）被设定为低于折射率（52B）的外表面（n 2B）。

9. 发明公开

EP2919335A4 AMPLIFYING OPTICAL FIBER AND OPTICAL AMPLIFIER 有权
标题翻译：增强光纤和光放大器
公开(公告)号：EP2919335A4
公开(公告)日：2016-08-03
申请号：EP13853089
申请日：2013-10-31
申请人： FUJIKURA LTD , NIPPON TELEGRAPH & TELEPHONE , UNIV OSAKA PREFECT PUBLIC CORP , NAT UNIV CORP SHIMANE UNIV
发明人： MATSUO SHOICHIRO , TAKENAGA KATSUHIRO , ICHII KENTARO , ONO HIROTAKA , TSUJIKAWA KYOUZOU , YAMADA MAKOTO , MASUDA HIROJI
IPC分类号： H01S3/067 , G02B6/02 , G02B6/036 , G02B6/04 , H01S3/094 , H01S3/23
CPC分类号： H01S3/06737 , G02B6/02042 , G02B6/036 , G02B6/03633 , G02B6/04 , H01S3/06733 , H01S3/06754 , H01S3/094007 , H01S3/2383
摘要： A plurality of cores 51 is disposed around the center axis of a first cladding 52 in a state in which an inter-core distance A of cores adjacent to each other is equal, a refractive index n 1 of the core 51 is provided higher than a refractive index n 2 of the first cladding 52, and the refractive index n 2 of the first cladding 52 is provided higher than a refractive index n 3 of a second cladding 53. Moreover, 5.8 ‰¤ ›/MFD(2»c/(»c + »op)) ‰¤ 8 is satisfied, where the inter-core distance is defined as A, a mode field diameter of the core is defined as MFD, a cutoff wavelength is defined as »c, and a wavelength of communication light incident on the core 51 is defined as »op.
摘要翻译：在彼此相邻的芯的芯间距离A相等的状态下，多个芯51围绕第一包层52的中心轴设置，芯51的折射率n 1比第一包层52的折射率n 2和第一包层52的折射率n 2被设置为高于第二包层53的折射率n 3。此外，5.8‰¤> / MFD（2»c /（ »c +»op））‰¤8，其中芯间距离定义为A，芯的模场直径定义为MFD，截止波长定义为»c，通信波长入射在芯51上的光被定义为»op。

10. 发明专利

CA2593570C TELLURITE GLASS, OPTICAL AMPLIFIER, AND LIGHT SOURCE 未知
公开(公告)号：CA2593570C
公开(公告)日：2008-12-02
申请号：CA2593570
申请日：1998-02-13
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： SHIMADA TOSHIYUKI , KANAMORI TERUTOSHI , OHISHI YASUTAKE , ONO HIROTAKA , MORI ATSUSHI , YAMADA MAKOTO
IPC分类号： G02B6/255 , G02B1/00 , G02B1/02 , G02B6/02 , H01S3/067 , H01S3/09 , H01S5/30 , H04B10/29
摘要： A tellurite glass as a glass material of optical fiber and optical waveguide has a composition of 0

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