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1. 发明授权

US06705772B2 Optical fiber splicing method and optical fiber 有权
标题翻译：光纤拼接方法和光纤
公开(公告)号：US06705772B2
公开(公告)日：2004-03-16
申请号：US10161624
申请日：2002-06-05
申请人： Motonori Nakamura , Osamu Kasuu , Daisuke Yokota , Yuichi Ohga
发明人： Motonori Nakamura , Osamu Kasuu , Daisuke Yokota , Yuichi Ohga
IPC分类号： G02B6255
CPC分类号： G01N21/67 , G01N21/72
摘要： An optical fiber splicing method capable of fully reducing the splice loss at room temperature is provided. In the optical fiber splicing method in accordance with the present invention, respective end faces of optical fibers are fused together in a splicing step (S101). In a condition setting step (S102), a set value &agr;0 is set. Thereafter, a heating step (S103), a measuring step (S104), and a termination determining step (S105) are carried out repeatedly. In the heating step, a region including the fusion-spliced point is heated under a predetermined heating condition. In the measuring step, splice loss is measured. In the termination determining step, the splice loss &agr;n measured in the measuring step and the set value &agr;0 set in the condition setting step are compared with each other in terms of magnitude. If the splice loss &agr;n is not greater than the set value &agr;0, then it is determined that the alternation should be terminated, whereby the optical fiber connecting operation is terminated.
摘要翻译：提供能够完全降低室温下的接头损耗的光纤接合方法。在根据本发明的光纤拼接方法中，光纤的各个端面在拼接步骤中熔合在一起（S101）。在条件设定步骤（S102）中，设定设定值α0。此后，重复执行加热步骤（S103），测量步骤（S104）和终止确定步骤（S105）。在加热步骤中，在预定加热条件下加热包含熔接点的区域。在测量步骤中，测量接头损耗。在终止确定步骤中，在测量步骤中测量的拼接损耗色差和在条件设置步骤中设置的设置值α0在幅度方面彼此进行比较。如果接头损失字母不大于设定值α0，则确定应该终止交替，从而终止光纤连接操作。

2. 发明申请

US20080107385A1 Optical Fiber And Manufacturing Method Thereof 有权
标题翻译：光纤及其制造方法
公开(公告)号：US20080107385A1
公开(公告)日：2008-05-08
申请号：US10556946
申请日：2004-05-18
申请人： Yuichi Ohga , Masashi Onishi , Osamu Kasuu , Shuichiro Kato , Toru Adachi , Takashi Sasaki , Masaaki Hirano
发明人： Yuichi Ohga , Masashi Onishi , Osamu Kasuu , Shuichiro Kato , Toru Adachi , Takashi Sasaki , Masaaki Hirano
IPC分类号： G02B6/02 , C03B37/027
CPC分类号： C03B37/01228 , C03B37/01211 , C03B37/01231 , C03B37/01248 , C03B37/02754 , Y02P40/57
摘要： A core rod is inserted into a cladding pipe, moisture in a space between the core rod and the cladding pipe is removed, and an optical fiber is drawn while the space is connected to a dry-gas atmosphere and/or being decompressed and while the core rod and the cladding pipe are being unified with each other. Alternatively, the core rod is inserted into the cladding pipe, and an optical fiber is drawn from one end while moisture on the surface of the core rod and the internal surface of the cladding pipe is being removed. Accordingly, a high quality optical fiber is manufactured with good productivity.
摘要翻译：将芯棒插入包层管中，去除芯棒和包层管之间的空间中的水分，并且在空间连接到干燥气体气氛和/或减压的同时拉出光纤，同时芯棒和包层管彼此统一。或者，将芯棒插入到包层管中，并且从一端抽出光纤，同时除去芯棒的表面和包层管的内表面上的水分。因此，以高生产率制造高品质的光纤。

3. 发明授权

US07486862B2 Optical fiber and manufacturing method thereof 有权
标题翻译：光纤及其制造方法
公开(公告)号：US07486862B2
公开(公告)日：2009-02-03
申请号：US10556946
申请日：2004-05-18
申请人： Yuichi Ohga , Masashi Onishi , Osamu Kasuu , Shuichiro Kato , Toru Adachi , Takashi Sasaki , Masaaki Hirano
发明人： Yuichi Ohga , Masashi Onishi , Osamu Kasuu , Shuichiro Kato , Toru Adachi , Takashi Sasaki , Masaaki Hirano
IPC分类号： G02B6/02 , C03B37/023
CPC分类号： C03B37/01228 , C03B37/01211 , C03B37/01231 , C03B37/01248 , C03B37/02754 , Y02P40/57
摘要： A core rod is inserted into a cladding pipe, moisture in a space between the core rod and the cladding pipe is removed, and an optical fiber is drawn while the space is connected to a dry-gas atmosphere and/or being decompressed and while the core rod and the cladding pipe are being unified with each other. Alternatively, the core rod is inserted into the cladding pipe, and an optical fiber is drawn from one end while moisture on the surface of the core rod and the internal surface of the cladding pipe is being removed. Accordingly, a high quality optical fiber is manufactured with good productivity.
摘要翻译：将芯棒插入包层管中，去除芯棒和包层管之间的空间中的水分，并且在空间连接到干燥气体气氛和/或减压的同时拉出光纤，同时芯棒和包层管彼此统一。或者，将芯棒插入到包层管中，并且从一端抽出光纤，同时除去芯棒的表面和包层管的内表面上的水分。因此，以高生产率制造高品质的光纤。

4. 发明授权

US06324871B1 Process for producing optical fiber preform 有权
标题翻译：生产光纤预制棒的工艺
公开(公告)号：US06324871B1
公开(公告)日：2001-12-04
申请号：US09709321
申请日：2000-11-13
申请人： Motonori Nakamura , Yuichi Ohga , Toshio Danzuka
发明人： Motonori Nakamura , Yuichi Ohga , Toshio Danzuka
IPC分类号： C03B2000
CPC分类号： C03B37/0142 , C03B2207/36 , C03B2207/52 , C03B2207/62 , C03B2207/70 , Y02P40/57
摘要： In a process for producing an optical fiber preform, a starting member and a glass synthesizing burner are reciprocated relative to each other so that fine glass particles synthesized with the burner are deposited layer by layer on the starting member, and a heating power of the glass synthesizing burner in a nonsteady outside diameter portion at either end of the soot preform is adjusted to control the temperature of the nonsteady outside diameter portion at either end against local elevation. The starting member is formed of a transparent glass rod that is held within a vessel and rotatable about its own axis, the burner is fitted on a lateral side of the vessel at right angles to the rotating axis of the starting member and is movable towards or away from the starting member.
摘要翻译：在制造光纤预制件的过程中，起始构件和玻璃合成燃烧器相对于彼此往复运动，使得在燃烧器上合成的细微玻璃颗粒逐层沉积在起始构件上，并且玻璃的加热功率在烟灰预制件的任一端的不稳定的外径部分中合成燃烧器被调节以控制任一端的不稳定的外径部分的温度抵抗局部升高。起始构件由保持在容器内并可围绕其自身的轴线旋转的透明玻璃棒形成，燃烧器以与起始构件的旋转轴线成直角的方式装配在容器的横向侧上，并且可朝着或远离起始成员。

5. 发明授权

US07143608B2 Burner for synthesizing glass particles and method for producing porous glass body 有权
公开(公告)号：US07143608B2
公开(公告)日：2006-12-05
申请号：US10791826
申请日：2004-03-04
申请人： Tadashi Enomoto , Yuichi Ohga , Nobuya Akaike , Haruhiko Aikawa , Takashi Matsuo , Motonori Nakamura
发明人： Tadashi Enomoto , Yuichi Ohga , Nobuya Akaike , Haruhiko Aikawa , Takashi Matsuo , Motonori Nakamura
IPC分类号： C03B19/06
CPC分类号： C03B37/0142 , C03B19/106 , C03B19/1423 , C03B2207/06 , C03B2207/08 , C03B2207/20 , C03B2207/22 , C03B2207/36 , C03B2207/40 , C03B2207/42 , Y02P40/57
摘要： A concentric multi-tubular burner for synthesizing glass particles having a center port group constituted by a combination of jet ports of raw material gas, combustible gas and oxygen gas, wherein an outer wall of the oxygen gas jet port in the center port group protrudes more toward a burner head than an inner wall of the oxygen gas jet port. The flow rate of oxygen gas jetted from the oxygen gas jet port of the center port group is controlled to be in a proper range.

6. 发明授权

US06748769B2 Method of producing glass particles deposit 失效
标题翻译：生产玻璃颗粒沉积物的方法
公开(公告)号：US06748769B2
公开(公告)日：2004-06-15
申请号：US09995857
申请日：2001-11-29
申请人： Toshihiro Ooishi , Yuichi Ohga , Yoshio Yokoyama , Motonori Nakamura
发明人： Toshihiro Ooishi , Yuichi Ohga , Yoshio Yokoyama , Motonori Nakamura
IPC分类号： C03B37014
CPC分类号： C03B37/0142 , C03B2207/52 , C03B2207/66 , C03B2207/70 , Y02P40/57
摘要： A plurality of glass particle synthesizing burners are disposed opposite to a rotating starting rod. The starting rod and the glass particle synthesizing burners are relatively reciprocally moved to each other in parallel to the axial direction, so that glass particles synthesized by the burners are sequentially deposited on the surface of the starting rod. The movement is stopped and restarted repeatedly once or more than once during one reciprocal movement.
摘要翻译：多个玻璃颗粒合成燃烧器与旋转起始杆相对设置。起始杆和玻璃粒子合成燃烧器相对于轴向平行地相互往复移动，使得由燃烧器合成的玻璃颗粒依次沉积在起始杆的表面上。在一个往复运动期间，运动被重复停止并重复重启一次或多次。

7. 发明授权

US06550985B2 Method of splicing two optical fibers 有权
标题翻译：拼接两根光纤的方法
公开(公告)号：US06550985B2
公开(公告)日：2003-04-22
申请号：US09845495
申请日：2001-05-01
申请人： Motonori Nakamura , Yuichi Ohga
发明人： Motonori Nakamura , Yuichi Ohga
IPC分类号： G02B6255
CPC分类号： G02B6/2551 , G02B6/2552
摘要： Two optical fibers to be spliced are prepared, coatings of resin are removed from end portions of the respective optical fibers to expose glass fibers, the glass fibers are aligned to each other, an a fusion step is carried out to heat the end faces of the glass fibers to cause fusion thereof to form a fusion-spliced portion. After that, an additive-diffusing step is carried out to diffuse an additive added in the glass fibers around the fusion-spiced portion, by a heat treatment around the fusion-spliced portion, by a heat treatment around the fusion-spliced portion at a first temperature of not less than 800° C. nor more than 1500° C. Further after the additive-diffusing step, a thermal-strain-removing step is carried out to remove thermal strain by a heat treatment of a wider region than heated regions in the fusion splice step and in the additive-diffusing step of the fusion-spliced portion, at a temperature of not less than 500° C. nor more than 1200° C.
摘要翻译：准备待接合的两根光纤，从各光纤的端部去除树脂涂层，露出玻璃纤维，玻璃纤维彼此对准，进行熔融步骤，以加热玻璃纤维引起其熔合以形成熔接部分。之后，通过在熔融部分周围的热处理，通过在熔融部分周围的热处理，在熔融加工的部分周围进行热处理，进行添加剂扩散步骤，使加入到熔融加工部分的玻璃纤维中的添加剂扩散第一温度不低于800℃，也不超过1500℃。此外，在添加剂扩散步骤之后，进行热应变去除步骤以通过比加热区域更宽的区域的热处理来除去热应变在融合接合步骤和熔融部分的添加剂扩散步骤中，在不低于500℃，不超过1200℃的温度下

8. 发明授权

US06895783B2 Method of producing optical fiber preform 有权
标题翻译：生产光纤预制棒的方法
公开(公告)号：US06895783B2
公开(公告)日：2005-05-24
申请号：US09956867
申请日：2001-09-21
申请人： Toshihiro Ohishi , Yuichi Ohga , Motonori Nakamura
发明人： Toshihiro Ohishi , Yuichi Ohga , Motonori Nakamura
IPC分类号： C03B37/018 , C03B8/04 , C03B37/014 , G02B6/00
CPC分类号： C03B37/01486 , C03B37/0142 , C03B2207/52 , C03B2207/66 , C03B2207/70 , Y02P40/57
摘要： A plurality of glass particles synthesizing burners are arranged at a predetermined burner interval opposite to a rotating starting rod. The starting rod and the glass particles synthesizing burners are relatively parallely reciprocally moved, and the soot deposition is conducted. A reciprocating speed v(mm/minute), axis rotating speed r (rpm), and burner interval L (mm) are set so that a value A expressed by the expression A=(r/v)×L is in a range 40≧A≧8.
摘要翻译：合成燃烧器的多个玻璃颗粒以与旋转起始杆相反的预定燃烧器间隔布置。合成燃烧器的起始杆和玻璃颗粒相对平行地往复移动，并进行烟灰沉积。设定往复速度v（mm /分钟），轴转速r（rpm）和燃烧器间隔L（mm），使得由表达式A =（r / v）×L表示的值A在40> = A> = 8。

9. 发明授权

US06889529B2 Method of manufacturing optical fiber preform 有权
标题翻译：制造光纤预制棒的方法
公开(公告)号：US06889529B2
公开(公告)日：2005-05-10
申请号：US09983624
申请日：2001-10-25
申请人： Toshihiro Ooishi , Yuichi Ohga , Yoshio Yokoyama , Motonori Nakamura
发明人： Toshihiro Ooishi , Yuichi Ohga , Yoshio Yokoyama , Motonori Nakamura
IPC分类号： G02B6/00 , C03B37/014 , C03B37/07 , B05D1/10
CPC分类号： C03B37/0142 , C03B37/01493 , C03B2207/36 , C03B2207/52 , C03B2207/66 , C03B2207/70 , Y02P40/57
摘要： A method for producing an optical fiber preform is provided in which the variation of the outer diameter in the longitudinal direction is minimized and a target quantity of glass is accumulated as a whole. Based on a predetermined relationship between three variables: the outer diameter of a starting rod being a first variable, the outer diameter of an optical fiber preform a second variable, and the timing for ending the glass particles depositing process a third variable, the starting rod and burners are subjected to relative reciprocating movement so as to deposit glass particles on the starting rod until the timing for ending the depositing process, and then the resulting deposit body is vitrified. The third variable may be the traverse velocity, the glass particles deposition time, or the weight of a soot glass deposit body.
摘要翻译：提供了一种光纤预制棒的制造方法，其中，使长径方向的外径变化最小化，玻璃的目标量整体上累积。基于三个变量之间的预定关系：起始杆的外径为第一变量，光纤预制件的外径为第二变量，以及用于结束玻璃颗粒沉积过程的第三变量的定时，起始杆并对燃烧器进行相对往复运动，以将玻璃颗粒沉积在起始杆上直到结束沉积过程的时刻，然后使所得的沉积体被玻璃化。第三个变量可以是横穿速度，玻璃颗粒沉积时间或烟灰玻璃沉积体的重量。

10. 发明授权

US06837077B2 Method for producing soot body 有权
标题翻译：生产烟灰体的方法
公开(公告)号：US06837077B2
公开(公告)日：2005-01-04
申请号：US10247514
申请日：2002-09-20
申请人： Motonori Nakamura , Toshihiro Ooishi , Yuichi Ohga
发明人： Motonori Nakamura , Toshihiro Ooishi , Yuichi Ohga
IPC分类号： C03B8/04 , C03B20/00 , C03B37/014 , C03B37/018
CPC分类号： C03B37/01413 , C03B37/0142 , C03B2207/36 , C03B2207/52 , C03B2207/66 , C03B2207/70 , Y02P40/57
摘要： Three or more glass particle synthesizing burners are arranged to be opposed to a rotating glass rod. The glass rod and the glass particle synthesizing burners are reciprocated in parallel and relatively to deposit glass particles synthesized by the burners on the surface of the glass rod, thereby producing a soot body. The glass particle synthesizing conditions of the burners arranged at both ends are changed to have a greater deposition amount of glass particles per unit time in part or all of its movement range than other burners.
摘要翻译：三个或更多个玻璃颗粒合成燃烧器被布置成与旋转的玻璃棒相对。玻璃棒和玻璃颗粒合成燃烧器平行往复运动并相对于在玻璃棒的表面上沉积由燃烧器合成的玻璃颗粒，从而产生烟灰体。布置在两端的燃烧器的玻璃颗粒合成条件被改变为具有比其他燃烧器的部分或全部移动范围更大的玻璃颗粒的每单位时间的沉积量。

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