公开(公告)号：US20120189262A1

公开(公告)日：2012-07-26

申请号：US13352644

申请日：2012-01-18

Applicant: Masaaki HIRANO ,  Tetsuya Haruna ,  Yoshiaki Tamura

Inventor： Masaaki HIRANO ,  Tetsuya Haruna ,  Yoshiaki Tamura

IPC: G02B6/00 ,  C03C13/04 ,  C03B37/012

CPC classification number: C03B37/01807 ,  C03B37/01853 ,  C03B2201/07 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  Y10T428/294

Abstract: An optical fiber preform includes a core portion, in which the core portion includes an alkali-metal-doped core glass portion doped with an alkali metal, the maximum concentration of oxygen molecules in the core portion is 30 mol ppb or more, and the average concentration of the alkali metal in the core portion is 5 atomic ppm or more. A method of manufacturing an optical fiber preform includes an alkali-metal-doping step of doping a pipe composed of silica-based glass with an alkali metal, an oxygen-molecule-doping step of doping the glass pipe with oxygen molecules, and a collapsing step of collapsing the glass pipe by heating the glass pipe, in which the optical fiber preform is manufactured.

Abstract translation: 光纤预制棒包括芯部，芯部包括掺杂有碱金属的碱金属掺杂的芯玻璃部分，芯部中的氧分子的最大浓度为30mol ppb以上，平均 芯部中的碱金属的浓度为5原子ppm以上。 制造光纤预制棒的方法包括：碱金属掺杂步骤，用碱金属掺杂由二氧化硅基玻璃构成的管，用氧分子掺杂玻璃管的氧分子掺杂步骤，以及塌陷 通过加热其中制造光纤预制棒的玻璃管来塌缩玻璃管的步骤。

公开(公告)号：US20120198891A1

公开(公告)日：2012-08-09

申请号：US13363652

申请日：2012-02-01

Applicant: Yoshiaki TAMURA ,  Masaaki HIRANO ,  Tetsuya HARUNA

Inventor： Yoshiaki TAMURA ,  Masaaki HIRANO ,  Tetsuya HARUNA

IPC: C03B37/075 ,  C03B37/012

CPC classification number: C03B37/01869 ,  C03B37/01228 ,  C03B37/01861 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50

Abstract: A method for producing an optical fiber preform according to the present invention includes a collapse step of collapsing a silica-based glass tube by heating with a heat source continuously traversed in the longitudinal direction of the glass tube to form a first glass rod to be formed into a core part or part of a core part of an optical fiber, the glass tube having an inner surface doped with an alkali metal, in which the glass tube has a maximum alkali metal concentration of 500 to 20,000 atomic ppm, a maximum chlorine concentration of 0 to 1000 atomic ppm, and a maximum fluorine concentration of 0 to 10,000 atomic ppm, and in which in the collapse step, the maximum temperature of the outer surface of the glass tube is 2000° C. to 2250° C., and the traverse speed of the heat source is 30 mm/min to 100 mm/min.

Abstract translation: 根据本发明的光纤预制件的制造方法包括：通过在沿着玻璃管的长度方向连续地横穿的热源进行加热使二氧化硅系玻璃管塌缩以形成第一玻璃棒的崩溃步骤 成为光纤的核心部分的核心部分或部分，玻璃管具有掺杂有碱金属的内表面，其中玻璃管具有最大的碱金属浓度为500至20,000原子ppm，最大氯浓度 0〜1000原子ppm，最大氟浓度为0〜10,000原子ppm，在塌陷工序中，玻璃管的外表面的最高温度为2000℃〜2250℃， 热源的横移速度为30mm / min〜100mm / min。

公开(公告)号：US20120263427A1

公开(公告)日：2012-10-18

申请号：US13441978

申请日：2012-04-09

Applicant: Masaaki HIRANO ,  Tetsuya Haruna ,  Yoshiaki Tamura

Inventor： Masaaki HIRANO ,  Tetsuya Haruna ,  Yoshiaki Tamura

IPC: G02B6/02

CPC classification number: G02B6/03644 ,  C03B37/01211 ,  C03B37/01228 ,  C03B37/0124 ,  C03B37/014 ,  C03B37/01807 ,  C03B37/01861 ,  C03B37/01869 ,  C03B37/027 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  C03B2203/22 ,  C03C13/045 ,  G02B6/02 ,  G02B6/02042 ,  G02B6/03605 ,  G02B6/03611 ,  G02B6/03627 ,  G02B6/03633 ,  G02B6/0365

Abstract: An optical fiber preform has a core portion having a first core portion including a central axis, a second core portion disposed around the first core portion, and a third core portion disposed around the second core portion. The first core portion contains 10 atomic ppm or more of an alkali metal and 10 to 600 atomic ppm of chlorine, the second core portion contains 10 atomic ppm or less of the alkali metal and 10 to 600 atomic ppm of chlorine, and the third core portion contains 10 atomic ppm or less of the alkali metal and 2,000 atomic ppm or more of chlorine. An optical fiber has a core region doped with an alkali metal and chlorine, wherein the minimum concentration of chlorine in the core region is 1,000 atomic ppm or more, and the average concentration of the alkali metal therein is 0.2 atomic ppm or more.

Abstract translation: 光纤预制件具有芯部，该芯部具有包括中心轴的第一芯部，围绕第一芯部设置的第二芯部，以及设置在第二芯部周围的第三芯部。 第一芯部包含10原子ppm以上的碱金属和10〜600原子ppm的氯，第二核部分含有10原子ppm以下的碱金属和10〜600原子ppm的氯，第三核 部分含有10原子ppm以下的碱金属和2,000原子ppm以上的氯。 光纤具有掺杂有碱金属和氯的芯区域，其中芯区域中的氯的最小浓度为1,000原子ppm以上，碱金属的平均浓度为0.2原子ppm以上。

公开(公告)号：US20110208878A1

公开(公告)日：2011-08-25

申请号：US13033641

申请日：2011-02-24

Applicant: Masaaki HIRANO ,  Kunihiko Nishiyama

Inventor： Masaaki HIRANO ,  Kunihiko Nishiyama

IPC: G06F3/00

CPC classification number: G06F13/385 ,  G06F12/02

Abstract: There is provided a semiconductor device having a reduced number of external terminals allocated for address input to receive access from outside, while realizing a high-speed response to an access from outside.The semiconductor device employs, in order to allow other external devices to directly access resources it possesses in its own address space, in an external interface circuit, external terminals which input a part of the address signal required for access from outside, a supplementary register which supplements the upper portion of address information that has been input from the external terminals, a mode register accessible from outside, and an address control circuit which generates an address signal to access the address space in a form based on information input from the external terminals, required supplementary information, and mode information of the mode register.

Abstract translation: 提供了一种半导体器件，其具有减少的用于地址输入的外部端子数量以从外部接收访问的外部端子，同时实现对来自外部的访问的高速响应。 半导体器件为了允许其他外部设备在其自己的地址空间中直接访问其外部接口电路中的资源，输入外部接入所需的部分地址信号的外部端子，附加寄存器 补充从外部端子输入的地址信息的上部，可从外部访问的模式寄存器，以及地址控制电路，其基于从外部端子输入的信息，生成形式地访问地址空间的地址信号， 所需的补充信息和模式寄存器的模式信息。

公开(公告)号：US20100236289A1

公开(公告)日：2010-09-23

申请号：US12789111

申请日：2010-05-27

Applicant: Tetsuya NAKANISHI ,  Masashi ONISHI ,  Tomoyuki YOKOKAWA ,  Masaaki HIRANO ,  Nobuyuki TAIRA

Inventor： Tetsuya NAKANISHI ,  Masashi ONISHI ,  Tomoyuki YOKOKAWA ,  Masaaki HIRANO ,  Nobuyuki TAIRA

IPC: C03C17/00

CPC classification number: C03B23/043 ,  C03B37/01242 ,  C03B37/01257 ,  C03B37/01815

Abstract: In a glass processing method according to the invention, in the case of performing chemical vapor deposition or diameter shrinkage of a substrate glass tube G by relatively moving a heating furnace 20 comprising a heating element 21 for annularly enclosing the circumference of the substrate glass tube in a longitudinal direction of the substrate glass tube G with respect to the substrate glass tube G in which an outer diameter is 30 mm or more and a wall thickness is 3 mm or more and is less than 15 mm and an ovality of the outer diameter is 1.0% or less using a glass processing apparatus 1, a temperature of at least one of the heating element 21 and the substrate glass tube G is measured and the amount of heat generation of the heating element 21 is adjusted based on the measured temperature.

公开(公告)号：US20080152294A1

公开(公告)日：2008-06-26

申请号：US11923269

申请日：2007-10-24

Applicant: Masaaki HIRANO ,  Masahiro YAMAGUCHI ,  Masaki TSURUGA

Inventor： Masaaki HIRANO ,  Masahiro YAMAGUCHI ,  Masaki TSURUGA

IPC: G02B6/00

CPC classification number: G02B6/4457

Abstract: A container for an optical fiber coil and an optical fiber module including the container is provided, wherein an excess length portion of a pigtail fiber is accommodated in the container and the remaining portion can be drawn out from the container. The container includes a first part for accommodating a coil having a functional optical fiber, and a second part disposed on an outer periphery side of the first part and windingly accommodating a pigtail fiber that is optically connected to the functional optical fiber. The second part has a gap that extends over the entirety of the outer periphery, and communicates with the exterior. The optical fiber module includes the container, the coil having the functional optical fiber accommodated in the first part of the container, and the pigtail fiber that is optically connected to the functional fiber and that has a portion windingly accommodated in the second part.

Abstract translation: 提供了一种用于光纤线圈的容器和包括容器的光纤模块，其中猪尾纤维的多余长度部分容纳在容器中，其余部分可以从容器中抽出。 容器包括用于容纳具有功能光纤的线圈的第一部分和设置在第一部分的外周侧上的第二部分，并且卷绕容纳与功能光纤光学连接的引出纤维。 第二部分具有在整个外周上延伸并与外部连通的间隙。 光纤模块包括容器，具有容纳在容器的第一部分中的功能光纤的线圈和光纤连接到功能性光纤并且具有卷绕在第二部分中的部分的尾纤光纤。