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.

公开(公告)号：US06725690B2

公开(公告)日：2004-04-27

申请号：US09952502

申请日：2001-09-14

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： C03B37018

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.

公开(公告)号：US5763081A

公开(公告)日：1998-06-09

申请号：US738841

申请日：1996-10-28

申请人： Yuichi Ohga ,  Shinji Ishikawa ,  Tadashi Enomoto

发明人： Yuichi Ohga ,  Shinji Ishikawa ,  Tadashi Enomoto

IPC分类号： G02B6/00 ,  C03B37/027 ,  C03C3/06 ,  C03C13/04 ,  G02B6/02 ,  B32B9/00 ,  B29D11/00

CPC分类号： C03C13/045 ,  C03B37/027 ,  C03C3/06 ,  G02B6/02 ,  C03B2201/12 ,  C03B2201/31 ,  Y02P40/57 ,  Y10T428/2933 ,  Y10T428/2962 ,  Y10T428/2964

摘要： A glass body for optical fiber containing GeO.sub.2 --SiO.sub.2 glass in a core portion thereof, in which the GeO.sub.2 --SiO.sub.2 glass has an absorbance at 5.16 eV of at least 1/mm but not higher than 2.5/mm or in which concentration of Ge.sup.2+ contained in the GeO.sub.2 --SiO.sub.2 glass substantially lies within the range of 1.1.times.10.sup.-9 to 2.8.times.10.sup.-9 mol/mm.sup.3 as calculated by the following general equation: A=.epsilon..sub.5.16ev .multidot.C.sub.(Ge2+) .multidot.1 wherein A is absorbance which is expressed by A=-log T (T being transmittance) and normalized per 1 mm of optical path length, C.sub.(Ge2+) is Ge.sup.2+ concentration, .epsilon..sub.5.16ev is absorption coefficient (1/mol/cm), and 1 is optical path length.

摘要翻译： 在其核心部分中含有GeO 2 -SiO 2玻璃的光纤玻璃体，其中GeO 2 -SiO 2玻璃在5.16eV处的吸光度为至少1 / mm但不高于2.5 / mm或其中含有Ge2 +的浓度 在GeO2-SiO2玻璃中基本上在1.1×10 -9至2.8×10 -9 mol / mm 3的范围内，通过以下通式计算：A =ε5.16evxC（Ge2 +）x1其中A是由A表示的吸光度 = -log T（T为透射率），每1mm光程长度标准化，C（Ge2 +）为Ge2 +浓度，ε为5.16ev为吸收系数（1 / mol / cm），1为光程长度。

公开(公告)号：US06845636B2

公开(公告)日：2005-01-25

申请号：US09943418

申请日：2001-08-31

申请人： Takashi Yamazaki ,  Takashi Kogo ,  Yuichi Ohga ,  Tadashi Enomoto

发明人： Takashi Yamazaki ,  Takashi Kogo ,  Yuichi Ohga ,  Tadashi Enomoto

IPC分类号： G02B6/00 ,  C03B37/014 ,  C03B37/012

CPC分类号： C03B37/0146 ,  Y10S65/90

摘要： A dehydration and consolidation furnace and a dehydration and consolidation method in which gas in a chamber does not leak to a furnace body room and gas in a furnace body room does not leak into a chamber is provided. A furnace of one embodiment of this invention has first muffle tube 3 and second muffle tube 4. The second muffle tube 4 is arranged coaxially around the first muffle tube 3. An optical fiber preform is arranged in this furnace. During the dehydration and consolidation process the pressure of the intermediate room 10 is set lower than a pressure inside the first muffle tube and outside the second muffle tube, and a gas supply and exhaust of the intermediate room 10 are performed independent of the gas supply and exhaust of the first muffle tube and a furnace body room.

摘要翻译： 提供了一种脱水和固结炉以及室内的气体不会泄漏到炉体室并且在炉体室中的气体不会泄漏到室中的脱水和固化方法。 本发明的一个实施例的炉子具有第一马弗管3和第二马弗管4。第二马弗管4同轴地布置在第一马弗管3的周围。光纤预制件布置在该炉中。 在脱水和固结过程中，中间室10的压力被设定为低于第一马弗管内部和第二马弗管外部的压力，中间室10的供气和排气独立于气体供应和 第一马弗管和炉体室的排气。

公开(公告)号：US06490078B2

公开(公告)日：2002-12-03

申请号：US09809301

申请日：2001-03-16

申请人： Tadashi Enomoto ,  Masahiro Takagi ,  Yuichi Ohga ,  Motoki Kakui ,  Shinji Ishikawa ,  Masakazu Shigehara ,  Shinji Endo

发明人： Tadashi Enomoto ,  Masahiro Takagi ,  Yuichi Ohga ,  Motoki Kakui ,  Shinji Ishikawa ,  Masakazu Shigehara ,  Shinji Endo

IPC分类号： G02B634

CPC分类号： H01S3/06708 ,  H01S3/06716 ,  H01S3/06729 ,  H01S3/06754

摘要： The present invention relates to an OFA having a high signal gain, easily manufactured, having a high mechanical strength, having a small splice loss with respect to other optical fibers, and rarely encountering the occurrence of noise at a signal wavelength. The OFA according to the present invention has a function of amplifying signals propagating therethroug by pumping light supplied thereto, and comprises, at least, a core region, an inner cladding region provided on the periphery of the core region, an outer cladding region provided on the periphery of the inner cladding region, and one or more node coupling gratings. An element for signal amplification is added to at least the core region. The core region has a structure ensuring a core mode with respect to the signals, while the inner cladding region has a structure ensuring a multi-mode with respect to the pumping light. Each of the mode coupling gratings passes core mode signals therethrough, and induces a mode coupling between the inner cladding mode and the core mode with respect to the pumping light.

摘要翻译： 本发明涉及具有高机械强度，易于制造的具有高信号增益，相对于其它光纤具有小的接合损耗，并且很少遇到在信号波长处的噪声的发生的OFA。 根据本发明的OFA具有通过泵送供给到其上的光来传播传播的信号的功能，并且至少包括芯区域，设置在芯区域周围的内包层区域，设置在芯区域 内包层区域的周边，以及一个或多个节点耦合光栅。 用于信号放大的元件至少加到核心区域。 芯区域具有确保相对于信号的芯模式的结构，而内包层区域具有确保相对于泵浦光的多模式的结构。 每个模式耦合光栅通过芯模信号，并且相对于泵浦光在内包层模式和芯模之间引起模耦合。

公开(公告)号：US06807823B2

公开(公告)日：2004-10-26

申请号：US10298924

申请日：2002-11-19

申请人： Yuichi Ohga ,  Tadashi Enomoto

发明人： Yuichi Ohga ,  Tadashi Enomoto

IPC分类号： C03C306

CPC分类号： C03C23/0025 ,  C03B19/1423 ,  C03B19/1453 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2207/30 ,  C03B2207/32 ,  C03B2207/36 ,  C03B2207/70 ,  C03C3/06 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2201/23 ,  C03C2203/54

摘要： A process for producing fluorine-containing glass. An SiO2 soot is synthesized by hydrolyzing SiCl4. The soot is heated in a chlorine-compound-free atmosphere containing a fluorine compound gas to form a fluorine-containing silica glass. The glass contains not more than 10 ppm OH group, not more than 10 ppm Cl, and not less than 1,000 ppm F. The concentration ratio of F/Cl is 10,000 or more.

摘要翻译： 含氟玻璃的制造方法。 通过水解SiCl4合成SiO 2烟炱。 烟灰在含氟化合物气体的无氯化合物的气氛中加热，形成含氟二氧化硅玻璃。 该玻璃含有不超过10ppm的OH基团，不超过10ppm的Cl，且不小于1,000ppm F.F / Cl的浓度比为10,000以上。

公开(公告)号：US06997016B2

公开(公告)日：2006-02-14

申请号：US10796052

申请日：2004-03-10

申请人： Tomomi Moriya ,  Masashi Onishi ,  Kazuyuki Sohma ,  Masaaki Hirano ,  Eiji Yanada ,  Tadashi Enomoto

发明人： Tomomi Moriya ,  Masashi Onishi ,  Kazuyuki Sohma ,  Masaaki Hirano ,  Eiji Yanada ,  Tadashi Enomoto

IPC分类号： C03B23/26 ,  C03B23/045

CPC分类号： C03B37/01254 ,  C03B19/1469 ,  C03B23/045 ,  C03B23/0493 ,  C03B23/0496 ,  Y02P40/57

摘要： Stress exerted on an inner or outer circumferential side of a glass tube 6 is controlled when a glass material 3 is heated and softened by a heating element 41 provided around the glass material 3 and a piercing plug 31 is relatively pressed into a softened region of the glass material 3 to thereby form the glass material 3 into the glass tube 6 gradually. For example, the control of the stress can be carried out by controlling an internal or external pressure of the glass tube 6. As a result, the deformation of the glass tube 6 just after piercing is prevented so that the glass tube 6 can be obtained with high quality. It is also possible to solve the problem that cracks may occur easily at the time of reheating because of residual stress distribution after cooling.

摘要翻译： 当玻璃材料3被设置在玻璃材料3周围的加热元件41加热和软化时，控制施加在玻璃管6的内周侧或外周侧上的应力，并且穿孔塞31被相对地压入到 玻璃材料3，从而逐渐将玻璃材料3形成到玻璃管6中。 例如，可以通过控制玻璃管6的内部或外部压力来进行应力的控制。 结果，防止刚刚穿刺之后的玻璃管6的变形，从而能够以高质量获得玻璃管6。 也可以解决由于冷却后的残余应力分布而在再加热时容易发生裂纹的问题。

公开(公告)号：US06580854B1

公开(公告)日：2003-06-17

申请号：US09615955

申请日：2000-07-13

申请人： Tadashi Enomoto ,  Shinji Ishikawa ,  Masakazu Shigehara ,  Michiko Harumoto

发明人： Tadashi Enomoto ,  Shinji Ishikawa ,  Masakazu Shigehara ,  Michiko Harumoto

IPC分类号： G02B634

CPC分类号： G02B6/0219 ,  G02B6/02095 ,  G02B6/02142 ,  G02B6/02147

摘要： In an optical waveguide grating in an optical fiber having a cladding region around a core region, a periodic refractive index distribution is existed in a predetermined area of the core region along the optical axis. The core region has a composition of GeO2—P2O5—SiO2 based glass, for example, whereas the cladding region is made of SiO2, and the co-doping ratio in the core region is adjusted, so as to lower the temperature dependence of characteristics. The doping amount of P2O5 in the core region is preferably {fraction (1/15)} to 1 times, more preferably 0.6 to 1 times that of GeO2.

摘要翻译： 在具有围绕芯区域的包层区域的光纤中的光波导光栅中，周期性折射率分布存在于沿着光轴的芯区域的预定区域中。 核心区域例如具有GeO 2 -P 2 O 5 -SiO 2基玻璃的组成，而包层区域由SiO 2制成，并且调整芯部区域中的共掺杂比，以降低特性的温度依赖性。 核心区域中的P2O5的掺杂量优选为GeO 2的1/15〜1倍，更优选为0.6〜1倍。

公开(公告)号：US5321297A

公开(公告)日：1994-06-14

申请号：US910147

申请日：1992-07-16

申请人： Tadashi Enomoto

发明人： Tadashi Enomoto

IPC分类号： G02B3/00 ,  H01L27/14 ,  H01L27/146 ,  H01L31/0216 ,  H01L31/0232 ,  H04N5/225 ,  H04N5/335 ,  H04N5/359 ,  H04N5/369 ,  H01L29/78 ,  H01L23/29 ,  H01L25/04

CPC分类号： H01L31/02162 ,  H01L27/14627 ,  H01L31/0232 ,  H04N5/2253

摘要： Light is directed to each photosensitive section by independently adjusting the curvature or thickness of each light converging lens above the photosensitive section, irrespective of the shape of a photosensitive element (photosensitive section), i.e., irrespective of the shape having a longer side in the row direction than the side in the column direction. Specifically, a strip layer is formed above a plurality of photosensitive sections, disposed in a row direction. Light converging lenses are formed on each strip layer to obtain a desired curvature or thickness.

摘要翻译： PCT No.PCT / JP91 / 01567 Sec。 371日期：1992年7月16日 102（e）日期1992年7月16日PCT 1991年11月15日PCT PCT。 出版物WO92 / 09105 日期：1992年5月29日。无论感光元件（感光部分）的形状如何，通过独立地调节光敏部分上方的每个聚光透镜的曲率或厚度来指向每个感光部分。即，不管具有 行方向的长边比列方向的一侧长。 具体地说，在沿行方向配置的多个感光部上形成带状层。 在每个条带层上形成会聚透镜以获得所需的曲率或厚度。

公开(公告)号：US09120694B2

公开(公告)日：2015-09-01

申请号：US14129673

申请日：2012-06-13

申请人： Tadashi Enomoto ,  Iwao Okazaki ,  Takashi Yamazaki ,  Masatoshi Hayakawa

发明人： Tadashi Enomoto ,  Iwao Okazaki ,  Takashi Yamazaki ,  Masatoshi Hayakawa

IPC分类号： C03B37/029 ,  H05B3/62 ,  F27B17/00 ,  C03B37/012

CPC分类号： C03B37/029 ,  C03B37/01257 ,  C03B2205/63 ,  F27B17/00 ,  H05B3/62 ,  H05B2203/025

摘要： The present invention provides a glass preform heating furnace in which the occurrence of arching is suppressed. The glass preform heating furnace is equipped with a susceptor (3); a slit heater (4); an insulator; and a furnace body, wherein, in the case that the space between the slit heater (4) and the susceptor or between the slit heater (4) and the conductive member closest to the slit heater is D, that the maximum value of the electric field in this space is E1, that the number of the slits in the slit heater is N, that the slit width of the slit heater is S, and that the maximum value of the electric field in the slit space is E2, the values of D, N and S are set so that E1≧E2 is established.

摘要翻译： 本发明提供一种玻璃预制件加热炉，其中抑制拱起的发生。 玻璃预制件加热炉配有基座（3）; 狭缝加热器（4）; 绝缘体 炉体，其中，狭缝加热器（4）与基座之间或狭缝加热器（4）与最靠近狭缝加热器的导电部件之间的间隔为D的情况下，电极的最大值 在该空间中的场为E1，狭缝加热器中的狭缝数为N，狭缝加热器的狭缝宽度为S，狭缝空间中的电场的最大值为E2， D，N，S被设定为使E1≥220成立。