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1. 发明授权

US5338607A 1.3 micrometer-band amplifying optical fiber preform 失效
标题翻译： 1.3微米带放大光纤预制棒
公开(公告)号：US5338607A
公开(公告)日：1994-08-16
申请号：US6340
申请日：1993-01-19
申请人： Hiromi Kawamoto , Yoshinori Kubota , Natsuya Nishimura , Akira Sakanoue
发明人： Hiromi Kawamoto , Yoshinori Kubota , Natsuya Nishimura , Akira Sakanoue
IPC分类号： C03B37/012 , C03B37/014 , C03C3/247 , C03C3/32 , C03C13/04 , G02B6/00 , G02F1/35 , H01S3/17 , B32B17/02
CPC分类号： C03C13/042 , C03C13/04 , C03B2201/50 , C03B2201/54 , C03B2201/82 , Y10T428/2929 , Y10T428/2938 , Y10T428/294 , Y10T428/2942 , Y10T428/2949 , Y10T428/2964
摘要： An optical fiber preform includes a core made from a fluoride glass which is doped with a rare earth, and a cladding surrounding the core. The cladding is made from one of an oxide glass and a fluoroxide glass. The core has a characteristic of amplification at 1.3 .mu.m-band. The cladding does not have absorption at 1.3 .mu.m-band. The preform is useful as a material for a fiber optical amplifier in optical communication systems.
摘要翻译：光纤预制件包括由掺杂有稀土的氟化物玻璃制成的芯和围绕芯的包层。包层由氧化物玻璃和氟氧化物玻璃之一制成。核心具有1.3微米波段的放大特性。包层在1.3微米带没有吸收。预成型件可用作光通信系统中的光纤放大器的材料。

2. 发明授权

US5308371A Method of forming fluoride glass fiber preform 失效
标题翻译：形成氟化玻璃纤维预制棒的方法
公开(公告)号：US5308371A
公开(公告)日：1994-05-03
申请号：US047522
申请日：1993-04-19
申请人： Hiromi Kawamoto , Yoshinori Kubota , Natsuya Nishimura , Akira Sakanoue
发明人： Hiromi Kawamoto , Yoshinori Kubota , Natsuya Nishimura , Akira Sakanoue
IPC分类号： C03B17/00 , C03B37/012 , C03B37/014 , C03C3/32 , G02B6/00 , C03B37/023
CPC分类号： C03B37/01274 , C03B37/01268 , C03B2201/82
摘要： A method of forming a fiber glass preform includes the steps of: (a) pouring a cladding glass into a mold; (b) pouring a core glass on a flat horizontal upper surface of the cladding glass so as to form a united glass body having the core glass and the cladding glass under a condition that viscosity of the cladding glass and viscosity of the core glass are adjusted to certain predetermined values respectively so that the core glass is separated from and placed on the cladding glass; (c) cooling the united glass body to solidify the same so that the cladding glass is deformed by contraction thereof so as to produce a depression at a top middle portion thereof and that the core glass is deformed so as to form a projected portion thereof to fill the depression therewith; (d) separating the united glass body into an upper portion and a lower portion comprising the projected portion of the core glass; and (e) extruding the lower portion of the united glass body so as to form the fiber glass preform.
摘要翻译：形成玻璃纤维预制棒的方法包括以下步骤：（a）将包层玻璃倒入模具中; （b）在包层玻璃的平坦的水平上表面上浇注芯玻璃，以在包层玻璃的粘度和芯玻璃的粘度被调节的条件下形成具有芯玻璃和包层玻璃的联合玻璃体分别达到某些预定值，使得芯玻璃与包层玻璃分离并放置在包层玻璃上; （c）冷却联合玻璃体以使其固化，使得包层玻璃通过收缩而变形，从而在其顶部中间部分产生凹陷，并且芯玻璃变形以形成其突出部分填充凹陷; （d）将玻璃体分离成包括芯玻璃的突出部分的上部和下部; 和（e）挤出组合玻璃体的下部以便形成玻璃纤维预制件。

3. 发明授权

US5684815A Upconversion laser material 失效
标题翻译：上转换激光材料
公开(公告)号：US5684815A
公开(公告)日：1997-11-04
申请号：US467679
申请日：1995-06-06
申请人： Kiyotaka Miura , Hiromi Kawamoto , Yoshinori Kubota , Natsuya Nishimura , Yasushi Kita
发明人： Kiyotaka Miura , Hiromi Kawamoto , Yoshinori Kubota , Natsuya Nishimura , Yasushi Kita
IPC分类号： H01S3/06 , H01S3/094 , H01S3/16 , H01S3/17
CPC分类号： H01S3/0602 , H01S3/094092 , H01S3/1603 , H01S3/163 , H01S3/17
摘要： An upconversion laser material includes a micro-sphere which is doped with an ion of a rare earth element and made of one selected from the group consisting of crystals and glasses. Thus, the micro-sphere achieves the light confinement therein and serves as a resonator. Therefore, the Q-value of the resonator becomes large. With this, it is possible to obtain the upconversion laser oscillation at room temperature.
摘要翻译：上转换激光材料包括掺杂有稀土元素的离子并由选自晶体和玻璃的一种制成的微球。因此，微球实现其中的光限制并且用作谐振器。因此，谐振器的Q值变大。由此，可以在室温下获得上变频激光振荡。

4. 发明授权

US06645893B2 Glass suitable for optical functional elements and process for producing same 失效
标题翻译：玻璃适用于光学功能元件及其制造方法
公开(公告)号：US06645893B2
公开(公告)日：2003-11-11
申请号：US09788663
申请日：2001-02-21
申请人： Kiyotaka Miura , Seiji Fujiwara , Takuya Teshima , Natsuya Nishimura , Yoshinori Kubota
发明人： Kiyotaka Miura , Seiji Fujiwara , Takuya Teshima , Natsuya Nishimura , Yoshinori Kubota
IPC分类号： C03C1400
CPC分类号： C03C14/006
摘要： A glass includes (a) a matrix containing a compound of at least one nonmetallic element; and (b) a particle selectively formed in the matrix. This particle is made of the at least one nonmetallic element. A process for producing such glass includes (a) providing a blank glass containing a compound of at least one nonmetallic element; (b) condensing a pulsed laser beam to a focal point in the blank glass such that a particle is selectively formed in the blank glass at a position corresponding to the focal point, the particle being made of the at least one nonmetallic element dissociated from the compound; and (c) moving the focal point in the blank glass to produce a pattern of the particle. The glass is suitable for optical functional elements.
摘要翻译：玻璃包括（a）含有至少一种非金属元素的化合物的基质; 和（b）在基质中选择性地形成的颗粒。该颗粒由至少一种非金属元素制成。制造这种玻璃的方法包括（a）提供含有至少一种非金属元素的化合物的坯料玻璃; （b）将脉冲激光束聚焦到坯料玻璃中的焦点，使得在对应于焦点的位置处，在坯料玻璃中选择性地形成颗粒，该颗粒由从至少一个非金属元素分离的至少一个非金属元素复合; 和（c）移动坯料玻璃中的焦点以产生颗粒的图案。该玻璃适用于光学功能元件。

5. 发明授权

US06261420B1 Process for producing amorphous material containing single crystal or polycrystal and material produced 失效
标题翻译：制造含有单晶或多晶的无定形材料和所生产的材料的方法
公开(公告)号：US06261420B1
公开(公告)日：2001-07-17
申请号：US09397122
申请日：1999-09-16
申请人： Yoshinori Kubota , Natsuya Nishimura
发明人： Yoshinori Kubota , Natsuya Nishimura
IPC分类号： C01B2500
CPC分类号： C03C10/00 , C03C23/0025 , C30B1/023 , C30B13/24
摘要： Pulsed light is irradiated to an amorphous base material, to produce therein one or more single crystals or polycrystals having nonlinear characteristic advantageous for light communication and laser technique. An external field such as electric field or magnetic field may be applied to the amorphous material, or a seed crystal or crystalline substrate may be used to promote crystallization from a contact interface between the amorphous material and the seed crystal or crystalline substrate.
摘要翻译：将脉冲光照射到非晶基材上，在其中制造具有有利于光通信和激光技术的非线性特性的一种或多种单晶或多晶体。诸如电场或磁场的外部场可以施加到非晶材料，或者可以使用晶种或晶体衬底来促进非晶材料和晶种或晶体衬底之间的接触界面的结晶。

6. 发明授权

US06198870B1 Optical waveguide and 1.5 &mgr;m-band optical amplifier using same 失效
标题翻译：光波导和1.5 mam波段光放大器使用相同
公开(公告)号：US06198870B1
公开(公告)日：2001-03-06
申请号：US08972944
申请日：1997-11-18
申请人： Yoshinori Kubota , Natsuya Nishimura
发明人： Yoshinori Kubota , Natsuya Nishimura
IPC分类号： H01S3067
CPC分类号： H01S3/06708 , H01S3/1608 , H01S3/1698
摘要： The invention relates to an optical waveguide having a core made of one member selected from halide glasses, chalcogenide glasses and oxyhalide glasses. This one member is doped with both of erbium and cerium. The invention further relates to a 1.5 &mgr;m-band optical amplifier having the optical waveguide for amplifying the light. Due to the doping of both erbium and cerium, it becomes possible to provide a highly efficient optical amplifier having low noise and wide band. With this, it becomes possible to construct an optical communication network having high credibility, high capacity and high speed.
摘要翻译：本发明涉及一种光波导，其具有由选自卤化物玻璃，硫族化物玻璃和卤氧化物玻璃的一种构件制成的芯。这一个元件掺杂有铒和铈。本发明还涉及一种具有用于放大光的光波导的1.5mam波段光放大器。由于铒和铈的掺杂，可以提供具有低噪声和宽带的高效光放大器。由此，可以构成具有高信誉，高容量，高速度的光通信网络。

7. 发明授权

US06534207B2 Process for producing amorphous material containing single crystal or polycrystal and material produced 失效
标题翻译：制造含有单晶或多晶的无定形材料和所生产的材料的方法
公开(公告)号：US06534207B2
公开(公告)日：2003-03-18
申请号：US09832992
申请日：2001-04-12
申请人： Yoshinori Kubota , Natsuya Nishimura
发明人： Yoshinori Kubota , Natsuya Nishimura
IPC分类号： B32B904
CPC分类号： C03C10/00 , C03C23/0025 , C30B1/023 , C30B13/24
摘要： Pulsed light is irradiated to an amorphous base material, to produce therein one or more single crystals or polycrystals having nonlinear characteristic advantageous for light communication and laser technique. An external field such as electric field or magnetic field may be applied to the amorphous material, or a seed crystal or crystalline substrate may be used to promote crystallization from a contact interface between the amorphous material and the seed crystal or crystalline substrate.
摘要翻译：将脉冲光照射到非晶基材上，在其中制造具有有利于光通信和激光技术的非线性特性的一种或多种单晶或多晶体。诸如电场或磁场的外部场可以施加到非晶材料，或者可以使用晶种或晶体衬底来促进非晶材料和晶种或晶体衬底之间的接触界面的结晶。

8. 发明授权

US06501596B1 1.4-1.52 &mgr;m-band optical amplifier 失效
标题翻译： 1.4-1.52毫米波长光放大器
公开(公告)号：US06501596B1
公开(公告)日：2002-12-31
申请号：US09987604
申请日：2001-11-15
申请人： Hiroyuki Inoue , Yoshinori Kubota , Natsuya Nishimura , Kiyotaka Miura , Takuya Teshima
发明人： Hiroyuki Inoue , Yoshinori Kubota , Natsuya Nishimura , Kiyotaka Miura , Takuya Teshima
IPC分类号： H01S300
CPC分类号： H01S3/06754 , H01S3/06766 , H01S3/0677 , H01S3/094096
摘要： The invention relates to a 1.4-1.52 &mgr;m-band optical amplifier. This optical amplifier includes (a) a first pumping source for a first pumping light in a wavelength range defined as being not less than 0.65 &mgr;m and being less than 0.77 &mgr;m; (b) a second pumping source for a second pumping light in a wavelength range of from 1.0 to 1.2 &mgr;m; (c) an optical multiplexer for combining said first and second pumping lights with a signal light, to produce a combined light; and (d) a light amplifying optical waveguide for amplifying said signal light by receiving said combined light, said optical waveguide comprising a core doped with Tm. The optical amplifier is highly efficient.
摘要翻译：本发明涉及一种1.4-1.52毫微微带宽光放大器。该光放大器包括：（a）用于第一泵浦光的第一泵浦光，其波长范围定义为不小于0.65μm，小于0.77μm; （b）在1.0-1.2μm波长范围内的第二泵浦光的第二泵浦源; （c）用于将所述第一和第二泵浦光与信号光组合以产生组合光的光学多路复用器; 以及（d）用于通过接收所述组合光来放大所述信号光的光放大光波导，所述光波导包括掺杂有Tm的芯。光放大器效率高。

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