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31. 发明专利

JP2004118105A Optical coupler, manufacturing method therefor, and optical fiber circuit using the same 审中-公开
公开(公告)号：JP2004118105A
公开(公告)日：2004-04-15
申请号：JP2002284368
申请日：2002-09-27
申请人： Kyocera Corp , 京セラ株式会社
发明人： SAKURAI HIROKI , OKUDA MICHITAKA
IPC分类号： G02B6/287
摘要： PROBLEM TO BE SOLVED: To provide a mounting structure for an optical coupler, which has a short mounting length and has no problems on reliability. SOLUTION: In an optical coupler which has a plurality of optical fibers fused and stretched to branch or multiplex/demultiplex incident light, fused and stretched parts are fixedly mounted on a support body like a curved surface, and fibers for input/output are wound and fixed on the support body. COPYRIGHT: (C)2004,JPO

32. 发明专利

JP2003287645A Fiber array type optical component 有权
标题翻译：光纤阵列光纤组件
公开(公告)号：JP2003287645A
公开(公告)日：2003-10-10
申请号：JP2002089647
申请日：2002-03-27
申请人： Kyocera Corp , 京セラ株式会社
发明人： OKUDA MICHITAKA , SAKURAI HIROKI
IPC分类号： G02B6/287
摘要： PROBLEM TO BE SOLVED: To provide a fiber array type optical component which is small-sized and reliable. SOLUTION: The fiber array type optical component which uses a plurality of fibers as an input/output part is characterized in that an area where a protection coating at a protection coating end part of an intermediate protection coating removal part of each fiber is removed by partial plane processing or plane tilt processing is carried out over the entire circumference is provided and then clads of respective fibers are brought nearly into close contact from the border part between the protection coating part and clad part. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供小型且可靠的光纤阵列型光学部件。解决方案：使用多根纤维作为输入/输出部件的光纤阵列型光学部件的特征在于，每个光纤的中间保护涂层去除部分的保护涂层端部的保护涂层为在整个圆周上进行部分平面加工或平面倾斜加工而去除，然后各个纤维的夹层几乎与保护涂层部分和包层部分之间的边界部分紧密接触。版权所有（C）2004，JPO

33. 发明专利

JP2003248134A OPTICAL FIBER COUPLER AND METHOD OF MANUFACTURING THE SAME 审中-公开
公开(公告)号：JP2003248134A
公开(公告)日：2003-09-05
申请号：JP2002048666
申请日：2002-02-25
申请人： KYOCERA CORP
发明人： SAKURAI HIROKI , OKUDA MICHITAKA
IPC分类号： G02B6/287
摘要： PROBLEM TO BE SOLVED: To provide a mounting structure whose mounting length is short and which has no reliability problems. SOLUTION: This is an optical fiber coupler 6 which combines plural or more number of optical waveguides, and which branches or multiplexes and demultiplexes an incident light. When an angle between two arbitrary optical fibers 10 and 20 which are branched from a fusion extended part in the center is given as θ, it satisfies 2°≤θ≤10°. COPYRIGHT: (C)2003,JPO

34. 发明专利

JP2003149488A FIBER TYPE OPTICAL COMPONENT, OPTICAL MODULE USING THE SAME, OPTICAL FIBER AMPLIFIER, AND ASE LIGHT SOURCE 审中-公开
公开(公告)号：JP2003149488A
公开(公告)日：2003-05-21
申请号：JP2002019543
申请日：2002-01-29
申请人： KYOCERA CORP
发明人： OKUDA MICHITAKA , TAKEI YUSUKE
IPC分类号： G02B6/287
摘要： PROBLEM TO BE SOLVED: To provide a fiber type optical component which has a function capable of removing unneeded light and flattening output light and is easily handled with low loss. SOLUTION: This fiber type optical component is configured by bringing a plurality of optical fibers into close contact with one another in parallel, forming a fusing and extending part for multiplexing and demultiplexing propagated light by heating and extending the optical fibers locally, and defining one optical fiber among the plurality of optical fibers at both ends as a fiber for input and output.

35. 发明专利

JP2000105325A OPTICAL FIBER COLLIMATOR AS WELL AS OPTICAL MODULE AND OPTICAL AMPLIFIER USING THE SAME 失效
公开(公告)号：JP2000105325A
公开(公告)日：2000-04-11
申请号：JP27690398
申请日：1998-09-30
申请人： KYOCERA CORP
发明人： OKUDA MICHITAKA , YASUJIMA HIROMI
IPC分类号： H01S3/06 , G02B6/32 , H01S3/067
摘要： PROBLEM TO BE SOLVED: To lessen loss and reduce a size by decreasing the juncture points in an optical amplifier. SOLUTION: An optical fiber collimator 1 is constituted by holding one end of a rare earth added optical fiber 3 in a ferrule 5 and providing the end of this ferrule 5 with a lens 2 for making the light transmitted from this rare earth added optical fiber 3 to parallel light beams. This collimator is used as the optical amplifier. The mode field diameter at the end of the rare earth added optical fiber 3 is preferably expanded.

36. 发明专利

JPH0921608A FARADAY ROTARY MIRROR 失效
公开(公告)号：JPH0921608A
公开(公告)日：1997-01-21
申请号：JP17180695
申请日：1995-07-07
申请人： KYOCERA CORP
发明人： FURUKATA YUKIKO , OKUDA MICHITAKA , SHIGEOKA YOSHIYUKI
IPC分类号： G01B9/02 , G01B11/00 , G02B6/00
摘要： PROBLEM TO BE SOLVED: To reduce the number of parts and restrict connection loss to be small by tightly bonding confronting faces of a core-magnified fiber held to a ferrule and the ferrule to a total reflection mirror film of a Faraday rotor via an optical adhesive. SOLUTION: Contact end faces of a ferrule 3 and a core-magnified fiber 2 held to the ferrule 3 to a Faraday rotor 4 are ground to be flat. When a Faraday rotary mirror 10 is used in a Faraday interferometer, a plurality of fibers 2 are set and, a reference fiber of the Faraday interferometer and a sensor fiber for detecting an external force are respectively connected to the fibers 2. A double refraction in the reference fiber and sensor fiber is thus compensated, thereby, an output of the Faraday interferometer is stabilized. Confronting face between the fiber 2 and a total reflection mirror film 5 of the rotor 4 is held in tight contact with each other via an optical adhesive 7. For example, a photosetting adhesive or the like that is transparent and has a refractive index close to that of a core of the fiber 2 is used as the adhesive 7.

37. 发明专利

JPH08286082A COUPLING STRUCTURE OF SEMICONDUCTOR LASER AND OPTICAL FIBER 失效
公开(公告)号：JPH08286082A
公开(公告)日：1996-11-01
申请号：JP9232595
申请日：1995-04-18
申请人： KYOCERA CORP
发明人： OKUDA MICHITAKA
IPC分类号： G02B6/42
摘要： PURPOSE: To make it possible to easily work a spherically pointed fiber for coupling a laser beam and to reduce a cost by polishing the end of the optical fiber to a triangular prism or quadrangular or higher polygonal prisms peaking at the core part of the end face. CONSTITUTION: The front end of the optical fiber 1a is rotated 90 deg. each in the state of inclining the optical fiber at a prescribed angle of α/2 from the polishing plane and is polished total four times, by which the front end of the optical fiber 1a is worked to the quadrangular prism shape. The front end of the optical fiber 1b is otherwise rotated 20 deg. each in the state of inclining the optical fiber at a prescribed angle of α/2 from the polishing plane and is polished total three times, by which the front end of the optical fiber 1b is worked to the triangular prism shape. The essential requirement is the polygonal prism shape peaking at the center of the core and to polish the front end at the number of times necessary for obtaining the necessary polygonal prism shape. A focal position is settable by the angle α of the vertex of the triangular shape constituting the side faces of the polygonal prism. The coupling structure having a shorter focal length and larger NA is obtained as α is larger.

38. 发明专利

JPH07321391A OPTICAL FIBER AMPLIFIER 失效
公开(公告)号：JPH07321391A
公开(公告)日：1995-12-08
申请号：JP11510494
申请日：1994-05-27
申请人： KYOCERA CORP
发明人： OKUDA MICHITAKA
IPC分类号： G02F1/35 , H01S3/06 , H01S3/07 , H01S3/10 , H01S3/17
摘要： PURPOSE:To realize a highly efficient inexpensive optical fiber amplifier having reduced number of components. CONSTITUTION:An Er doped fiber (c) is connected, at the opposite ends thereof, with first and second optical multiplexer/demultiplexers (a), (b) to constitute a ring. The first optical multiplexer/demultiplexer (a) receives lights having substantially same wavelength from excitation light sources WP1, WP2 and used for forward/reverse excitation whereas the second optical multiplexer/ demultiplexer (b) is used for inputting/outputting a signal.

39. 发明专利

JPH0618743A OPTICAL BRANCH COUPLER 失效
公开(公告)号：JPH0618743A
公开(公告)日：1994-01-28
申请号：JP19591392
申请日：1992-06-30
申请人： KYOCERA CORP
发明人： OKUDA MICHITAKA
IPC分类号： G02B6/28
摘要： PURPOSE:To obtain an optical branch coupler capable of shortening a stretching length, increasing the strength and also having a wide band. CONSTITUTION:Optical fibers 10 and 20 provided with core enlargement parts 30 and 40 are prepared, and the coupler is produced by welding and stretching the core enlargement parts 30 and 40 of the optical fibers 10 and 20 each other. Since the core enlargement parts 30 and 40 of the optical fibers 10 and 20 are welded and stretched, the coupling of both parts is started earlier, so that a stretching distance to the position having a necessary branching ratio is shortened in accordance with the starting of the coupling, and a narrow diameter part can be thickened.

40. 发明专利

JPH04225302A FIBER TYPE OPTICAL ISOLATOR 失效
公开(公告)号：JPH04225302A
公开(公告)日：1992-08-14
申请号：JP41423990
申请日：1990-12-26
申请人： KYOCERA CORP
发明人： OKUDA MICHITAKA
IPC分类号： G02B6/00
摘要： PURPOSE:To reduce the number of parts, to facilitate assembly and to make an optical isolator light in weight and low-priced by constituting the optical isolator only of an optical fiber consisting of a core and a clad. CONSTITUTION:Many fiber modules 10 obtained by providing the core 2 in the clad 8 are prepared. This fiber module 10 is constituted so that the diameter of the core 2 of the end face 3 on an incident side on which light is made incident may be enlarged. By successively and consecutively fusing the end faces of many fiber modules 10 on the side where the diameter of the core is enlarged and on the side where it is not enlarged, the fiber type optical isolator 1 is constituted.

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