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1. 发明专利

JP2006323028A OPTICAL FIBER SHEET AND ITS MANUFACTURING METHOD 审中-公开
公开(公告)号：JP2006323028A
公开(公告)日：2006-11-30
申请号：JP2005144711
申请日：2005-05-17
申请人： SUMITOMO ELECTRIC INDUSTRIES , NTT ADVANCED TECH KK , NEC CORP , HITACHI CHEMICAL CO LTD , HIROSE ELECTRIC CO LTD
发明人： SAITO KAZUTO , OMURA MAKI , IBARAKI OSAMU , KINOSHITA MASAO , MASUDA HIROSHI , SUZUKI SHUJI
IPC分类号： G02B6/00
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber sheet which is capable of excluding the security of an excessive slack by improving the workability of connection by a connector and permits the miniaturization and makes high density wiring possible, and to provide a manufacturing method of the optical fiber sheet. SOLUTION: Optical fibers 11 are inserted into fiber holes 31 of the connectors 30 and are connected by the connectors to top end parts 12a of extension parts 12 extended from outer peripheral parts 21 of sheet members 20, 20 which hold and fix the optical fibers 11 therebetween in the state of allowing covers 11b to remain without removing the resin covers 11b of the optical fibers 11. COPYRIGHT: (C)2007,JPO&INPIT

2. 发明专利

JP2006323027A CONNECTION METHOD OF OPTICAL FIBER 审中-公开
公开(公告)号：JP2006323027A
公开(公告)日：2006-11-30
申请号：JP2005144710
申请日：2005-05-17
申请人： SUMITOMO ELECTRIC INDUSTRIES , NTT ADVANCED TECH KK , NEC CORP , HITACHI CHEMICAL CO LTD , HIROSE ELECTRIC CO LTD
发明人： SAITO KAZUTO , OMURA MAKI , IBARAKI OSAMU , KINOSHITA MASAO , MASUDA HIROSHI , SUZUKI SHUJI
IPC分类号： G02B6/255 , G02B6/26
摘要： PROBLEM TO BE SOLVED: To provide a connection method of optical fiber capable of connecting optical fibers by themselves, in which not only core diameter but also numerical aperture (NA) are different from each other, with a low connection loss. SOLUTION: When connecting the optical fibers 10, 11 by themselves, both connection surfaces 10a, 11a are abutted and thermally welded, wherein the heating of both connection surfaces is performed so as to cause a dopant in the core 12 of the optical fiber 10 of the side having larger NA to diffuse into a clad 13. As the result, the NAs of the both optical fibers 10, 11 can be approximated each other and, therefore, the optical fibers 10, 11 having numerical aperture (NA) different from each other can be connected by themselves with a low connection loss. COPYRIGHT: (C)2007,JPO&INPIT

3. 发明专利

JP2015179267A 光コネクタフェルール审中-公开
公开(公告)号：JP2015179267A
公开(公告)日：2015-10-08
申请号：JP2015038918
申请日：2015-02-27
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： OMURA MAKI , NAKAMURA TAKAYUKI , FUJIKI TAKAO , SANO TOMOMI
IPC分类号： G02B6/40
摘要：【課題】光コネクタ間の接続損失の増大を抑制し得る光コネクタフェルールを提供する。【解決手段】前端2b、後端、上面2a、及び下面を有する光コネクタフェルールであって、上面2aに開口する窓25と、前端2bと窓25との間を第1方向に沿って貫通しており、前端2b側の細径部分22bと窓25側の太径部分22aとを含む複数のファイバ孔22と、太径部分22aのそれぞれから第1方向に沿って延び、第1方向に交差する第3方向に開口を有する複数のファイバ溝23と、を備え、複数のファイバ孔22は、下面側において、第1方向及び第3方向に交差する第2方向に並ぶ第1ファイバ孔列22Aと、上面2a側において第2方向に並ぶ第2ファイバ孔列22Bと、を含み、第2ファイバ孔列22Bにおける太径部分22aは、第1ファイバ孔列22Aにおける太径部分よりも長い。【選択図】図2

4. 发明专利

JP2015179266A 光コネクタフェルール审中-公开
公开(公告)号：JP2015179266A
公开(公告)日：2015-10-08
申请号：JP2015038915
申请日：2015-02-27
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： OMURA MAKI , NAKAMURA TAKAYUKI , SANO TOMOMI
IPC分类号： G02B6/40
摘要：【課題】接続損失の増大を抑制し得る光コネクタフェルールを提供する。【解決手段】前端2b、後端2c、上面2a、及び下面2dを有する光コネクタフェルール2であって、上面2aに開口する窓25と、前端2bと窓25との間を第1方向に沿って貫通しており、前端2b側の細径部分と窓25側の太径部分とを含む複数のファイバ孔22と、太径部分のそれぞれから第1方向に沿って延び、第1方向に直交する第2方向に開口を有する複数のファイバ溝23と、を備え、開口の幅が、太径部分の直径よりも小さく、ファイバ溝23の深さが、太径部分の半径よりも小さい。【選択図】図1

5. 发明专利

JP2003255159A METHOD AND APPARATUS FOR MANUFACTURING OPTICAL WAVEGUIDE TYPE DIFFRACTION GRATING ELEMENT, AND THE OPTICAL WAVEGUIDE TYPE DIFFRACTION GRATING ELEMENT 审中-公开
公开(公告)号：JP2003255159A
公开(公告)日：2003-09-10
申请号：JP2002057646
申请日：2002-03-04
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： MURASHIMA KIYOTAKA , HASHIMOTO TAKESHI , SHIBATA TOSHIKAZU , INOUE SUSUMU , OMURA MAKI , MOBARA MASAICHI
IPC分类号： G02B5/18 , G02B6/02 , G02B6/036 , G02B6/10 , G02B6/16
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus which can easily manufacture an optical waveguide diffraction grating with desired optical characteristics. SOLUTION: A light source 11 outputs light (refractive index variation inducing light A) of the wavelength which induces refractive index variation in a photosensitive area of an optical fiber 20. The light source 11 outputs the refractive index variation inducing light A along an axis (z) and a mirror 12 reflects and outputs the refractive index variation inducing light A along the axis (x). A stage 13 moves the mirror 12 along the axis (z). A phase grating mask 14 has a phase grating formed on one surface of a quartz glass flat plate and is arranged in parallel to a yz plane. Irradiation of the optical fiber 20 with the refractive index variation inducing light A is scanned along the axis (z) and swung along an axis (y). The position of incidence of the refractive index variation inducing light A on the phase grating mask 14 moves so as to draw a zigzag track. COPYRIGHT: (C)2003,JPO

6. 发明专利

JP2002214455A PHASE GRATING MASK, METHOD FOR MANUFACTURING OPTICAL WAVEGUIDE TYPE DIFFRACTION GRATING ELEMENT, AND OPTICAL WAVEGUIDE TYPE DIFFRACTION GRATING ELEMENT 失效
公开(公告)号：JP2002214455A
公开(公告)日：2002-07-31
申请号：JP2001006651
申请日：2001-01-15
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： MURASHIMA KIYOTAKA , OMURA MAKI
IPC分类号： G02B6/122 , G02B5/18 , G02B6/02 , G02B6/10
摘要： PROBLEM TO BE SOLVED: To provide a method, etc., for manufacturing an optical waveguide type diffraction grating element having multiple reflection wavelengths at low cost and with good reproducibility. SOLUTION: A phase grating mask 1 used for this manufacturing method has phase gratings formed respectively in N mutually isolated areas 11An (n=1 to 5) on a 1st surface 11 of a flat plate 10 made of quartz glass. On the 1st surface 11, the areas 11An (n=1 to 5) where the phase gratings are formed and flat areas 11Bn (n=0 to 5) where no phase grating is formed are present alternately in the (x)-axis direction. In the areas 11An (n=1 to 5), the thickness in the (z)-axis direction changes in a cycle of 2Lg along the (x) axis, thereby forming the phase gratings.

7. 发明专利

JP2001318243A MANUFACTURING DEVICE AND MANUFACTURING METHOD FOR FIBER GRATING 失效
公开(公告)号：JP2001318243A
公开(公告)日：2001-11-16
申请号：JP2000135862
申请日：2000-05-09
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： MORIYA TOMOMI , INOUE SUSUMU , HASHIMOTO TAKESHI , OMURA MAKI
IPC分类号： G02B5/18 , G02B6/02 , G02B6/10 , G02B6/16
摘要： PROBLEM TO BE SOLVED: To prevent an optical fiber from being irradiated again with a stray light after the optical fiber is irradiated and to prevent the optical fiber or a phase grating from being stuck by fine metal powder generated at a light terminating end, when the side surface of the optical fiber is irradiated with a ultraviolet-ray interference pattern. SOLUTION: This device is provided with an irradiation optical system for forming a fiber grating 4a in the optical fiber 4, by irradiating the optical fiber 4 which is held by a holder 5 with the ultraviolet ray interference pattern 3 and the light trailing end 6 for attenuating the irradiating light which traverses the inside of the optical fiber and the irradiating light passing through the vicinity of the optical fiber. The light trailing end 6 is a member having plural tip end parts of an acute angle forming plural parallel edges and is arranged within a casing body 7, having a window 7c consisting of ultraviolet ray transmitting glass in the side irradiated by the light.

8. 发明专利

JP2001318241A DEVICE FOR MANUFACTURING OPTICAL WAVEGUIDE GRATING 失效
公开(公告)号：JP2001318241A
公开(公告)日：2001-11-16
申请号：JP2000136258
申请日：2000-05-09
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： MORIYA TOMOMI , INOUE SUSUMU , HASHIMOTO TAKESHI , OMURA MAKI
IPC分类号： G02B6/02 , G02B6/10
摘要： PROBLEM TO BE SOLVED: To easily attach and detach a diffraction grating and also to correctly and easily position it. SOLUTION: In a device for manufacturing an optical waveguide grating, which is provided with placing means 1, 2 on which a photosensitive optical waveguide 6 is placed, the diffraction grating 3 is provided on the photosensitive optical waveguide 6 and diffracts irradiating light, having a wavelength generating the change of a refractive index to the optical waveguide 6, and a grating holder 4 is provided for holding the diffraction grating 3. At least two guide pins 5 which are provided detachably in the placing means 1, 2 and at least two engaging grooves 1d, 2d are provided on the surface facing the optical waveguide 6 of the grating holder 4 and are respectively engaged with the guide pins 5.

9. 发明专利

JP2000266944A MANUFACTURE OF OPTICAL FIBER AND PLANE OPTICAL WAVEGUIDE WITH DIFFRACTION GRATING 失效
公开(公告)号：JP2000266944A
公开(公告)日：2000-09-29
申请号：JP6938299
申请日：1999-03-16
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： OMURA MAKI , INOUE SUSUMU , TSUNODA TATSUYA , SAKAI KAZUAKI
IPC分类号： G02B6/122 , G02B6/10
摘要： PROBLEM TO BE SOLVED: To prevent adhesion of organic decomposition products, dusts or the like on a grating face of a phase grating used in forming a diffraction grating in an optical fiber or a plane optical waveguide. SOLUTION: In a manufacturing method of such an optical fiber with a diffraction grating that the diffraction grating is formed in a part in the longitudinal direction of the optical fiber 1, the optical fiber 1 including a photosensitive dopant in the core is placed linearly, and a phase grating 2 is arranged in parallel therewith, and an ultraviolet-ray transmission glass board 3 is arranged between the phase grating 2 and the optical fiber 1, in parallel with the phase grating 2 and the optical fiber 1. Then, an ultraviolet ray 4a is irradiated to the phase grating 2 from the side, where the optical fiber 1 is not arranged, of the phase grating 2, and by interference light of the ultraviolet ray 4a passing through the phase grating 2 and the ultraviolet-ray transmission glass board 3, a refractive index of the photosensitive dopant included in the core of the optical fiber 1 is changed to form a diffraction grating in the optical fiber 1. In the case of this plane optical waveguide, the plane optical waveguide is arranged on the position of the optical fiber 1, so that the face thereof becomes parallel to the diffraction grating 2, and the diffraction grating 2 is formed on a straight line part of the core.

10. 发明专利

JP2003107268A OPTICAL FIBER AND OPTICAL FIBER TYPE FILTER 审中-公开
公开(公告)号：JP2003107268A
公开(公告)日：2003-04-09
申请号：JP2001297480
申请日：2001-09-27
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： TARU TOSHIKI , ISHIKAWA SHINJI , MOBARA MASAICHI , OMURA MAKI
IPC分类号： G02B6/00 , G02B6/02 , G02B6/036 , G02B6/10 , G02B6/22
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber which has a small transmission loss and is easy to manufacture and to provide an optical fiber type filter which has a small polarization dependent loss and has a low reflection factor and a narrow band. SOLUTION: An optical fiber 10 for use in an optical fiber type filter 1 is provided with an inner core area 11 which includes the center of the optical axis and does not have photosensitivity, an outer core area 12 which surrounds the inner core area 11 and has photosensitivity, and an optical clad area 13 which surrounds the outer core area 12 and has photosensitivity, and the element Cl is added to the inner core area 11. Refractive indexes higher than those of the optical clad area 13 and a physical clad area 14 are given to the inner core area 11 and the outer core area 12. Refractive index modulation is not formed in the inner core area 11 but is formed in the outer core area 12 and the optical clad area 13, within a certain range 15 in the lengthwise direction of the optical fiber 10, and a grid surface of the refractive index modulation is inclined to the optical axis.

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