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151. 发明专利

JPH09318844A PRODUCTION OF MULTI-FIBER OPTICAL CONNECTOR FERRULE 失效
公开(公告)号：JPH09318844A
公开(公告)日：1997-12-12
申请号：JP15745296
申请日：1996-05-30
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SAKAI KAZUAKI , ISHIDA HIDETOSHI , KAKII TOSHIAKI
IPC分类号： G02B6/38 , G02B6/40
摘要： PROBLEM TO BE SOLVED: To make it possible to two-dimensionally form optical fiber holes and to package these holes at the same external shape sizes as the external shape sizes of a one-dimensional array type and at double density by providing both upper and lower molds of metal molds with pin positioning mechanisms for forming the holes, respectively positioning pins for forming the optical fiber holes arrayed in two steps and fixing these pins to each other by means of spacers. SOLUTION: Both of the upper mold 17 and the lower mold 11 are provided with the pin positioning mechanisms 13, 13' for forming the holes. The pins 5, 5' for forming the optical fiber holes are arrayed in the two steps in the direction where the centers of the pins 6, 6' for footing the guide holes are coupled. The upperstep pins 5' are positioned by the pin positioning mechanism 13 of the upper mold 17 and the lower-step pins 5 by the pin positioning mechanism 13 of the lower mold 11. The pins 5, 5' are fixed by means of the spacers 7 disposed between the pins of the upper and lower steps. As a result, the optical connector ferrule which has the same external shape sizes as the external shape sizes of the optical connector ferrule of the one-dimensional array type, allows the vertical two-dimensional formation of the optical fiber holes in the regions held by the guide holes at both ends of the optical connector ferrule and have the twice packaging density is produced.

152. 发明专利

JPH09311249A MULTI-FIBER OPTICAL CONNECTOR 失效
公开(公告)号：JPH09311249A
公开(公告)日：1997-12-02
申请号：JP12872096
申请日：1996-05-23
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SAKAI KAZUAKI , ISHIDA HIDETOSHI , KAKII TOSHIAKI
IPC分类号： G02B6/40
摘要： PROBLEM TO BE SOLVED: To provide a multi-fiber optical connector which is formed by two- dimensionally arranging optical fibers on the end face of the optical connector, is capable of bringing the optical fibers into strong contact with each other and well executing PC (physical contact) coupling even if pressing force is not increased. SOLUTION: Two pieces of guide pins are fitted into a ferrule 11 to be inserted with an optical fiber ribbon 12 having the plural optical fibers. The optical fibers are two-dimensionally arranged across a segment connecting the centers between both guide pin holes 13, 13 of the ferrule 11 to be respectively fitted with the respective guide pins, by which the optical fibers 14 are attachably and detachably connected. The distance between the centers of the optical fibers at both ends in the direction orthogonal with the segment connecting the centers of both guide pin holes 13, 13 is confined to

153. 发明专利

JPH08338926A OPTICAL FIBER ARRAY 失效
公开(公告)号：JPH08338926A
公开(公告)日：1996-12-24
申请号：JP1884394
申请日：1994-01-20
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： ISHIDA HIDETOSHI
IPC分类号： G02B6/40 , G02B6/42
摘要： PURPOSE: To eliminate the need for parallel movement in a longitudinal direction and alignment in a rotating direction around the two axes orthogonal with the longitudinal direction at the time of alignment and to dispense with the alignment of only the X, Y directions and X-Y plane by polishing the end face of a metallic sleeve simultaneously with the end face of an optical fiber array, thereby constituting the optical fiber array. CONSTITUTION: An optical fiber positioning member 2 is composed of two sheets of plates, upper and lower, for clamping optical fibers 1 in a sandwich form. The inner side of the metallic sleeve 3 enclosing this optical fiber positioning member 2 is sealed and fixed by solder together with the optical fibers 1 and the positioning member 2 at the end face. The metallic sleeve 3 is so polished as to be made flush with the optical fiber plane over the entire periphery at the end face of the optical fiber array. The polished end face of the metallic sleeve 3 is made to form a butt surface at the time of positioning and fixing the optical fiber array to the other parts, for example, LD array, lens array, etc., of an optical parallel transmission optical module.

154. 发明专利

JPH08179149A OPTICAL FIBER ARRAY 失效
公开(公告)号：JPH08179149A
公开(公告)日：1996-07-12
申请号：JP33466894
申请日：1994-12-20
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： ISHIDA HIDETOSHI , OGAWA SHINJI , KAKII TOSHIAKI
IPC分类号： G02B6/24 , G02B6/40
摘要： PURPOSE: To reduce the internal strain of an optical fiber while maintaining array structure airtight by fixing optical fibers only nearby an optical fiber array end surface with solder a specific length, and fixing them behind it with an organic adhesive. CONSTITUTION: A V groove for positioning and fixing an optical fiber is formed in at least one of array plates 4 and 5. The optical fiber is fixed in the V groove, fixed with solder 6 nearby an array tip, and fixed behind it with the organic adhesive 7 like an epoxy adhesive with superior heat resistance. In this case, it is essential that the solder fixation length from the array tip is

155. 发明专利

JPH07325234A OPTICAL CONNECTOR FERRULE 失效
公开(公告)号：JPH07325234A
公开(公告)日：1995-12-12
申请号：JP14388894
申请日：1994-06-01
申请人： SUMITOMO ELECTRIC INDUSTRIES , NIPPON TELEGRAPH & TELEPHONE
发明人： TAMEKUNI YOSHIAKI , UEDA TOMOHIKO , HONSHIYO MAKOTO , YAMANISHI TORU , ISHIDA HIDETOSHI , TSUCHIYA ICHIRO , NAGASAWA SHINJI
IPC分类号： G02B6/36 , G02B6/38 , G02B6/40
摘要： PURPOSE:To provide an optical connector ferrule in which deformation due to moisture absorption and swelling of a molded resin part and deformation due to hardening and thermal shrinkage of a molded resin during molding are suppressed. CONSTITUTION:This optical connector ferrule is produced by molding a resin. A reinforcing member 10 which has a face parallel to at least one face of the ferrule and does not prevent formation of guide pin holes 2 and optical fiber guide holes 3 is integrally molded in the inside of the ferrule to obtain the optical connector ferrule.

156. 发明专利

JPH07209558A PARALLEL TRANSMISSION MODULE AND ITS MANUFACTURE 失效
公开(公告)号：JPH07209558A
公开(公告)日：1995-08-11
申请号：JP1882494
申请日：1994-01-20
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： ISHIDA HIDETOSHI , OGAWA SHINJI , KAKII TOSHIAKI
IPC分类号： G02B6/42 , G02B6/04 , G02B6/30 , H01L31/0232 , H01L33/08 , H01L33/48 , H01L33/00
摘要： PURPOSE:To improve sealing performance by positioning an optical fibers on both its end surfaces by the upper and lower plates of an optical fiber guide substrate and fixing the optical fiber, upper and lower plates, and a flange part in one body with a fixing agent. CONSTITUTION:This parallel transmission module has a module internal coupling end surface which is at a module end part and couples with an optical system in the module and an external connector coupling end surface which couples with an external optical connector, and also has a guide pin groove at least on the external connector coupling end surface, and metallic flanges 3 are provided on the outer peripheries of the upper and lower plates 14 and 15 on the side of the module internal coupling end surface. The optical fiber 1 is positioned on its both end surfaces by the lower plate 15 and upper plate 14 of the optical fiber substrate, and the optical fiber 1, upper and lower plates 14 and 15, and metallic flanges 3 are fixed in one body by a hermetic seal member 6 such as solder and low-fusion-point glass.

157. 发明专利

JPH07209555A OPTICAL FIBER AND FITTING METHOD THEREFOR 失效
公开(公告)号：JPH07209555A
公开(公告)日：1995-08-11
申请号：JP1310594
申请日：1994-01-12
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： ISHIDA HIDETOSHI , OGAWA SHINJI , KAKII TOSHIAKI
IPC分类号： G02B6/36 , G02B6/42
摘要： PURPOSE:To makes hermetic sealing perfect and to facilitate end surface polishing by positioning a metallic sleeve, which is provided in the outer peripheral part of an optical fiber array, slightly behind an optical fiber array end surface. CONSTITUTION:An optical fiber 1 is inserted into the fiber V groove hole 3 formed of a fiber V groove 2 formed in a lower plate 5 and an upper plate 4, and the optical fiber 1 is clamped while sandwiched between upper and lower plates 4 and 5 as an optical fiber positioning member. Further, the metallic sleeve 6 is provided on the outer periphery of the optical fiber positioning member and this metallic sleeve 6 serves as a flange for welding or soldering fixation. The metallic sleeve 6 is positioned slightly behind the fiber array end surface, and sealed and fixed by soldering at the sleeve tip together with the optical fiber 1 and positioning member. Even the metallic sleeve 3 can, therefore, be sealed by being dipped in a solder tank, so the sealing operation is securely and easily performed.

158. 发明专利

JPH07168051A OPTICAL FIBER COUPLER AND ITS MANUFACTURE 失效
公开(公告)号：JPH07168051A
公开(公告)日：1995-07-04
申请号：JP34356793
申请日：1993-12-15
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： KOBAYASHI TAKEHITO , ISHIDA HIDETOSHI , SHITOMI TATSUHIKO , YOKOMACHI YUKIHIRO , ISHIGURO YOICHI
IPC分类号： G02B6/28
摘要： PURPOSE:To provide an optical fiber coupler which is easy to be connected to a measuring system, an optical part, etc., and has excellent storability. CONSTITUTION:An optical fiber fixing groove and a guide pin fixing groove 12 are formed in both end parts of a lower part case 8 and the center part is caved to form a caved middle part 14. The optical fiber fixing groove is precisely positioned against the guide pin fixing groove 12. A coupler part formed by heating and extending a multicore fiber 16 is mounted on the optical fiber fixing groove and, together with an upper part case 9, it is stuck to and fixed in the fiber fixing groove. Then, the multicore fiber 16 extended outward from the case main body is cut at the position near the end face of the case and the end face is polished to give an optical fiber coupler. The case itself becomes a connector.

159. 发明专利

JPH07168050A OPTICAL FIBER COUPLER AND ITS MANUFACTURE 失效
公开(公告)号：JPH07168050A
公开(公告)日：1995-07-04
申请号：JP34356693
申请日：1993-12-15
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： KOBAYASHI TAKEHITO , ISHIDA HIDETOSHI , SHITOMI TATSUHIKO , YOKOMACHI YUKIHIRO , ISHIGURO YOICHI
IPC分类号： G02B6/28
摘要： PURPOSE:To provide an optical fiber coupler which can form a connector part by itself. CONSTITUTION:A multicore fiber 1 whose cores 2 are arranged in (m) rows and (n) of cores of which in one row are put in a common clad 3 is used. A V-shaped groove 4 which matches with a guide pin 5 is formed in side faces of the multicore fiber 1 and its end faces are polished. Both end faces of the multicore fiber 1 are installed in an extending stage and while being heated at the center part by a burner 6, the fiber is extended. The center part of the multicore fiber 1 is extended and optically coupled state is produced between cores and a coupler part 7 is formed. During that time, a connector for monitoring is connected with one end part of the multicore fiber 1 and the dividing ratio is measured by a light source and a power meter. The end part of the completed coupler is formed to be a connector and can be connected to an optical connector for connection.

160. 发明专利

JPH07168048A MANUFACTURE OF OPTICAL FIBER COUPLER AND MELTING AND EXTENDING FURNACE 失效
公开(公告)号：JPH07168048A
公开(公告)日：1995-07-04
申请号：JP34356593
申请日：1993-12-15
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： YOKOMACHI YUKIHIRO , SHITOMI TATSUHIKO , KOBAYASHI TAKEHITO , ISHIGURO YOICHI , ISHIDA HIDETOSHI
IPC分类号： G02B6/255 , G02B6/287 , G02B6/40
摘要： PURPOSE:To manufacture optical fiber couplers which are easy to be connected to a monitorying system excellent in storability and easy to be formed into modules. CONSTITUTION:Multicore connectors 4, 5 are attached to both ends of a proper length of a tape fiber 1 and the resulting tape fiber is installed in an extending stage. A part of a coating is removed to form a coating removed part 3 and the extending stage is moved down and inserted into a melting and extending furnace 6. Neighboring optical fiber core wires are inserted two by two into the grooves of the melting and extending furnace 6 and heated and extended to form coupler parts. By means of the multicore connectors 4, 5, connection to a light source and a monitoring system having a power meter can be achieved and dividing ratio can be measured.

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