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：US06563984B1

公开(公告)日：2003-05-13

申请号：US09504898

申请日：2000-02-16

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

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

IPC分类号： G02B626

CPC分类号： G02B6/02095

摘要： The present invention relates to a long-period grating device which eliminates only a desirable wavelength of core-mode light in a wavelength band in use from 1525 nm to 1610 nm. The long-period grating device according to the present invention comprises an optical fiber provided with a core region and a cladding region, whereas a long-period grating whose refractive index changes with a period &Lgr; in the advancing direction of light is provided in the core region, wherein the period &Lgr; is set such that the absolute value of a loss peak due to mode coupling concerning a refractive index modulation component with a period &Lgr;/(2n+1) (n=1, 2, 3, 4) is 0.2 dB or less in the wavelength band in use.

摘要翻译： 本发明涉及一种长周期光栅器件，其仅消除了使用中的1525nm至1610nm的波长范围内的核心光的理想波长。 根据本发明的长周期光栅装置包括设置有芯区域和包层区域的光纤，而在光的前进方向上折射率随周期LAMBD变化的长周期光栅设置在芯 区域，其中周期LAMBD被设置为使得由于与周期LAMBD /（2n + 1）（n = 1,2,3,4）的折射率调制分量的模式耦合的损耗峰值的绝对值为0.2 dB或更小的波长带。

公开(公告)号：US06785444B2

公开(公告)日：2004-08-31

申请号：US10129276

申请日：2002-10-01

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

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

IPC分类号： G02B634

CPC分类号： G02B6/021 ,  G02B6/02095 ,  G02B6/03633

摘要： An optical fiber grating device 1 is a device in which a long period grating 14 is formed in a core region 11 of an optical fiber 10 consisting of the core region 11 having a refractive index n1 and an outside diameter 2a, a first cladding region 12 surrounding the core region 11 and having a refractive index n2 and an outside diameter 2b, and a second cladding region 13 surrounding the first cladding region 12 and having a refractive index n3 and an outside diameter 2c. There is a magnitude relation of n1>n2>n3 among the refractive index n1 of the core region 11, the refractive index n2 of the first cladding region 12, and the refractive index n3 of the second cladding region 13, a relative refractive index difference &Dgr;n2 of the first cladding region 12 to the second cladding region 13 is not less than 0.5%, and a thickness (c−b) of the second cladding region 13 with respect to a transmission loss peak wavelength &lgr; is in a range of not less than &lgr; nor more than 10&lgr;.

摘要翻译： 光纤光栅装置1是在由具有折射率n1和外径2a的纤芯区域11构成的光纤10的芯部区域11中形成长周期光栅14的装置，第一包层区域12 围绕芯区域11并具有折射率n2和外径2b，以及围绕第一包层区域12并具有折射率n3和外径2c的第二包层区域13。 在芯区域11的折射率n1，第一包层区域12的折射率n2和第二包层区域13的折射率n3之间存在n1> n2> n3的大小关系，相对折射率差 第一包层区域12到第二包层区域13的Deltan2不小于0.5％，第二包层区域13相对于透射损耗峰值波长λ的厚度（cb）在不小于λ的范围内 也不超过10lambda。

公开(公告)号：US06487340B2

公开(公告)日：2002-11-26

申请号：US09903763

申请日：2001-07-13

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

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

IPC分类号： G02B634

CPC分类号： G02B6/02095 ,  G02B6/03633 ,  G02B6/03666 ,  G02B6/14 ,  G02B6/266

摘要： The present invention relates to an optical fiber grating element having structure enabling more precise design and fabrication, a production method thereof, and an optical fiber filter including the same. The optical fiber grating element according to the present invention comprises a multi-mode optical fiber having a first core region of a refractive index n1, a second core of a refractive index n2 provided on a periphery of the first core region, and a cladding region of a refractive index n3 provided on a periphery of the second core region, and having a cutoff wavelength regarding to LP02-mode light on the longer wavelength side than a wavelength band in use. A long-period grating for selectively coupling the fundamental LP01-mode light of a predetermined wavelength in the wavelength band I use to LP0m (m≧2)-mode light is provided in a predetermined region of the first core region.

摘要翻译： 本发明涉及具有能够进行更精确的设计和制造的结构的光纤光栅元件及其制造方法以及包括该光纤光栅的光纤滤波器。 根据本发明的光纤光栅元件包括具有折射率n1的第一纤芯区域和设置在第一纤芯区域周围的折射率n2的第二纤芯的多模光纤，以及包覆区域 设置在第二纤芯区域的周围的折射率n3，并且在比使用的波长带更长的波长侧具有关于LP02模式光的截止波长。 在第一核心区域的预定区域中提供用于将波长带I中使用的预定波长的基本LP01模式光选择性地耦合到LP0m（m> = 2）模式光的长周期光栅。

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：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：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：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。

公开(公告)号：US09136156B2

公开(公告)日：2015-09-15

申请号：US13599082

申请日：2012-08-30

申请人： Tadashi Enomoto ,  Mitsuhiro Tachibana ,  Haruhiko Furuya ,  Kentaro Oshimo

发明人： Tadashi Enomoto ,  Mitsuhiro Tachibana ,  Haruhiko Furuya ,  Kentaro Oshimo

IPC分类号： C23C16/00 ,  H01L21/687 ,  H01L21/67 ,  C23C16/455

CPC分类号： H01L21/68764 ,  C23C16/455 ,  C23C16/45506 ,  C23C16/45551 ,  H01L21/6719 ,  H01L21/68771

摘要： A substrate processing apparatus includes a processing chamber; process areas each of which supplies a reaction gas; a turntable that rotates to cause a substrate to pass through the process areas; a gas nozzle provided in one of the process areas; a separating area that supplies a separation gas to separate atmospheres of the process areas; and a cover part configured to cover the gas nozzle and cause the reaction gas supplied from the gas nozzle to remain around the gas nozzle. The cover part includes an upstream side wall, a downstream side wall, and an upper wall. The cover part also includes a guide surface configured to guide the separation gas to flow over a lower part of the upstream side wall to a space above the upper wall. The distance between the gas nozzle and the upstream side wall is greater than or equal to 8 mm.

摘要翻译： 基板处理装置包括处理室; 处理区域各自提供反应气体; 旋转以使基底通过处理区域的转盘; 设置在所述处理区域之一中的气体喷嘴; 分离区域，其供应分离气体以分离处理区域的气氛; 以及盖部，其构造成覆盖所述气体喷嘴，并且使从所述气体喷嘴供给的反应气体保持在所述气体喷嘴周围。 盖部包括上游侧壁，下游侧壁和上壁。 盖部分还包括引导表面，该引导表面构造成引导分离气体在上游侧壁的下部流动到上壁上方的空间。 气体喷嘴与上游侧壁之间的距离大于或等于8mm。