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1. 发明专利

JP2002258076A WAVEGUIDE TYPE OPTICAL MULTIPLEXING/BRANCHING DEVICE 失效
公开(公告)号：JP2002258076A
公开(公告)日：2002-09-11
申请号：JP2001056147
申请日：2001-03-01
申请人： HITACHI CABLE
发明人： NAMISE HIDEKI , TAKASUGI SATORU , OUCHI SATORU
IPC分类号： G02B6/30 , G02B6/12
摘要： PROBLEM TO BE SOLVED: To provide a polarized plane maintaining waveguide type optical multiplexing/branching device which does not impair the mass-productivity even if the number of wavelengths increases. SOLUTION: A second optical waveguide element 13 having such an extent of a specific refractive index difference as matching the mode field diameter of a polarized plane maintaining optical fiber 10 is inserted between the polarized plane maintaining optical fiber 10 and a first optical waveguide element 14 having a high refractive index difference, and also an optical circuit is formed in the second optical waveguide element 13 so that the core interval of the waveguide is widened from the input side 17 toward the output side 18.

2. 发明专利

JP2002107557A INTERLEAVE OPTICAL MULTIPLEXER/DEMULTIPLEXER 失效
公开(公告)号：JP2002107557A
公开(公告)日：2002-04-10
申请号：JP2000299108
申请日：2000-09-27
申请人： HITACHI CABLE
发明人： NAMISE HIDEKI , TAKASUGI SATORU , UETSUKA NAOTO
IPC分类号： G02B6/12
摘要： PROBLEM TO BE SOLVED: To provide an interleave optical multiplexer/demultiplexer capable of obtaining prescribed demultiplexing wavelength characteristics even if an environmental temperature is changed. SOLUTION: The distribution of a surface temperature of a heater 8 is uniformized by sticking and fixing a thin plate 11 having high heat conductivity onto the surface of the heater 8. Also, the distribution of the surface temperature of the heater 8 is uniformized by controlling so that the heat conductivity of a resin used in adhesion between the heater 8 and the thin plate 11 is >=0.92 W/m.k and the viscosity is

3. 发明专利

JP2001033643A WAVEGUIDE TYPE OPTICAL MODULE 失效
公开(公告)号：JP2001033643A
公开(公告)日：2001-02-09
申请号：JP20560899
申请日：1999-07-21
申请人： HITACHI CABLE
发明人： TAKASUGI SATORU , KAJIYAMA SHINICHI , NAMISE HIDEKI
IPC分类号： G02B6/122
摘要： PROBLEM TO BE SOLVED: To prevent the heat generated in a heater from being transferred to the whole of a tray to raise the heat efficiency and attain the reduction in power consumption and shortening of temperature-raising time by providing an opening in the tray for setting and fixing a waveguide element. SOLUTION: An array waveguide grating optical circuit is constituted in a waveguide element 1. A temperature sensor 9 is set on the waveguide element 1. The waveguide element 1 is fixed to a tray through a heat conductive adhesive. A heater 4 is fixed to the reverse side of the tray 2 through a heat conductive adhesive. The tray 2 is fixed to a package 6 by a base seat 5, and a heat insulating material 7 is filled in the space part between the tray 2 and the package 6. Opening parts 3 are provided in two positions around the part within the tray 2 where the heater 4 is adhered and the part within the waveguide element 1 where the array waveguide grating optical circuit (the part requiring temperature control) is adhered.

4. 发明专利

JP2000131539A WAVEGUIDE TYPE OPTICAL MODULE 失效
公开(公告)号：JP2000131539A
公开(公告)日：2000-05-12
申请号：JP30046098
申请日：1998-10-22
申请人： HITACHI CABLE
发明人： TAKASUGI SATORU , KAJIYAMA SHINICHI , NAMISE HIDEKI
IPC分类号： G02B6/12 , G02B6/34
摘要： PROBLEM TO BE SOLVED: To provide a waveguide type optical module hardly being affected by temp. change. SOLUTION: In this optical module, since resistance heaters 3a and 3b and temp. sensors 4a and 4b are formed on the same surface of the clad surface of a waveguide element 1, the temp. difference of the resistance heaters 3a and 3b, the temp. sensors 4a and 4b and an array waveguide type grating optical circuit 9, etc., is reduced. Further, since the heaters 3a and 3b and the temp. sensors 4a and 4b are formed by a semiconductor process, fine positional adjustment is possible, and further, the temp. differences of respective parts are reduced.

5. 发明专利

JPH1195057A OPTICAL FIBER BRANCHING PART, AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH1195057A
公开(公告)日：1999-04-09
申请号：JP25456697
申请日：1997-09-19
申请人： HITACHI CABLE
发明人： KAJIYAMA SHINICHI , TAKASUGI SATORU
IPC分类号： G02B6/28
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber branching part and manufacture thereof capable of reducing part items to be assembled into a small size. SOLUTION: This optical fiber branching part has a branching part 5 to branch plural optical fibers 1 respectively for a tape fiber arranged with the plural optical fibers 1 in parallel, a box 9 to store the branching part 5, and a resin molding 3 to cover the peripheral part of the box 9 with a prescribed thickness and to cover both ends of the box 9. The resin molding 3 in both end sides of the box 9 forms elastic members 2 extending integratedly on the tape fiber and the optical fibers. A resin such as an adhesive 4 or a potting agent is favorably filled inside the box 9 to bring the tape fiber and the branching part 5 in the box 9 into close contact in the condition they are buried with the resin. In manufacturing method, the resin molding 3 of a prescribed thickness is provided in the peripheral part of the box 9 by an insertion molding method with the box 9 as a core, and the elastic members 2 integrated on the tape fiber and the optical fiber 1 are formed in the both end sides of the box 9.

6. 发明专利

JPH1164697A FIBER CORD SEPARATING PART OF MULTIPLE COATED OPTICAL FIBER RIBBON 失效
公开(公告)号：JPH1164697A
公开(公告)日：1999-03-05
申请号：JP22652797
申请日：1997-08-22
申请人： HITACHI CABLE
发明人： TAKASUGI SATORU , KAJIYAMA SHINICHI , SHIDA MASAYUKI
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To make it possible to enhance the strength of a separating part, to improve a temp. characteristic and to make handling easy even if the number of coated fibers increases by exposing the coated fiber ribbon of the separating part, separating the coated fiber ribbon to one piece each, fixing the coated fibers to a package base, packing an adhesive into the internal space thereof and adhering and fixing the coated fibers. SOLUTION: The required length of a protective tube 2 for the coated fiber ribbon is removed to expose the coated optical fiber 1. This coated optical fiber 1 is separated to four pieces of single core coated optical fibers 3. Four pieces of the separated single core coated optical fibers 3 are protected by putting the protective tubes 4 for the single core optical fibers respectively thereon. These fibers are installed on the package base 8 and the silicone based adhesive 7 is poured into the internal space 13 of the package base 8. The coated optical fiber 1 and four pieces of the separated single core coated optical fibers 3, etc., are adhered and fixed in the package base 8 by this adhesive 7. Finally, a package cover 9 is attached with screws 10.

7. 发明专利

JPH10160960A OPTICAL MODULE 失效
公开(公告)号：JPH10160960A
公开(公告)日：1998-06-19
申请号：JP32392296
申请日：1996-12-04
申请人： HITACHI CABLE
发明人： SHIDA MASAYUKI , TAKASUGI SATORU
IPC分类号： G02B6/30
摘要： PROBLEM TO BE SOLVED: To provide an optical module with high reliability. SOLUTION: When a waveguide element 2 is fixed with a reference wall 6 for element fixation and two front and rear stoppers 10a and 10b, the fixation position of the waveguide element 2 is restricted, so neither projection from the permissible range of the fixation position nor the breaking of the optical fiber 11 due to vibration is caused, so that the reliability is improved. When the part of the optical fiber 1 where its coating is removed is coated with resin 15, the coating-removed part of the optical fiber 1 is protected, so the optical fiber 1 is never flawed while mounted and the optical fiber is never broken in a proof test, so that the reliability is improved. When the waveguide element 2 is adhered and fixed to a pedestal 16 at a part other than a waveguide array part 8, the waveguide array part 8 is not fixed to the pedestal 16, so stress applied to the pedestal 16 is not applied to the waveguide array part 8 to prevent optical characteristics from varying, thereby improving the reliability.

8. 发明专利

JPH09101430A OPTICAL MODULE 失效
公开(公告)号：JPH09101430A
公开(公告)日：1997-04-15
申请号：JP25798495
申请日：1995-10-04
申请人： HITACHI CABLE
发明人： SHIDA MASAYUKI , TAKASUGI SATORU , KUROSAWA YOSHINORI , TAKEYA NORIAKI
IPC分类号： G02B6/30
摘要： PROBLEM TO BE SOLVED: To make a waveguide substrate tolerant of a large external shock by providing 2nd pedestals for waveguide substrate fixation for fixing the lengthwise end part of a waveguide substrate. SOLUTION: Plate type fixation bases 2a and 2b are formed at both end parts of a long-plate type package 1 and the waveguide substrate 3 is mounted at their center part. This waveguide substrate 3 branches incident light from an optical fiber 4 to respective optical fibers 5. The optical fibers 4 and 5 are fixed to the fixation bases 2a and 2b. A pedestal 15 for waveguide substrate fixation is arranged at the center part of the waveguide substrate 3 and a nonmetal elastic body 16 which functions as an adhesive is interposed between the pedestal 15 and waveguide substrate 3. At both the end parts of the waveguide substrate 3, pedestals 7a and 17b for waveguide substrate fixation are installed so that the end parts of the waveguide substrate 3 are mounted with margin.

9. 发明专利

JPH06347646A COATED FIBER SEPARATING TOOL OF RIBBON TYPE MULTIPLE OPTICAL FIBER 失效
公开(公告)号：JPH06347646A
公开(公告)日：1994-12-22
申请号：JP13767593
申请日：1993-06-08
申请人： HITACHI CABLE
发明人： TAKEYA NORIAKI , TERAOKA TATSUO , KUROSAWA YOSHINORI , TAKASUGI SATORU , SAKAMOTO TAKESHI
IPC分类号： G02B6/00 , G02B6/44 , H02G1/12
摘要： PURPOSE:To provide a tool particularly suitable for separating coated fibers of a ribbon type multiple optical fiber by shearing. CONSTITUTION:(1) The coated fiber separating tool is composed of a pair of shearing blade parts 22, 23 for shearing the ribbon type multiple optical fiber 11 and a separating member 14 for tearing the pantly sheared ribbon type multiple optical fiber 11 in the axial direction. (2) The coated fiber separating tool is composed of a pair of rotary shearing rollers respectively having stepped grooves for shearing the ribbon type multiple optical fiber 11 and an upper structural body and lower structural body for supporting these shearing rollers so as to make the rollers separable from each other.

10. 发明专利

JPH05181021A METHOD AND DEVICE FOR REMOVING COATING FOR OPTICAL FIBER 失效
公开(公告)号：JPH05181021A
公开(公告)日：1993-07-23
申请号：JP16192
申请日：1992-01-06
申请人： HITACHI CABLE
发明人： TAKASUGI SATORU , SASAKI KOJI , ABE HIDEKAZU
IPC分类号： B26D3/08 , G02B6/00 , H02G1/12
摘要： PURPOSE:To prevent the glass of an optical fiber from being flawed by pulling a cut coating layer in a longitudinal direction on the end side of the optical fiber, thereby removing the coating layer. CONSTITUTION:The entire layer or a part of the coating layer is lanced and cut by cutting blades 1, 2 and the cut coating layer is held by holding blades 6, 7 provided on the end side of the optical fiber 3 and is pulled in the longitudinal direction of the optical fiber 3, by which the coating layer is removed. This device is constituted of the cutting blades 1, 2 which lance the entire layer or a part of the coating layer and cut the coating layer and the holding blades 6, 7 which hold the cut coating layer, pull and remove the coating layer in the longitudinal direction of the optical fiber 3 and are provided on the end side of the optical fiber 3. As a result, the soft layer between the cutting blades and the holding blades eventually remains even if the coating layer is lanced down to the soft layer.

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