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1. 发明专利

JP2005321447A Photonic crystal fiber and method for processing terminal thereof 有权
标题翻译：光电晶体纤维及其端子处理方法
公开(公告)号：JP2005321447A
公开(公告)日：2005-11-17
申请号：JP2004137325
申请日：2004-05-06
申请人： Mitsubishi Cable Ind Ltd , 三菱電線工業株式会社
发明人： YAMATORI SHINYA , HACHIWAKA MASAYOSHI , TANAKA MASATOSHI
IPC分类号： G02B6/00 , G02B6/02 , G02B6/024 , G02B6/10 , G02B6/17
摘要： PROBLEM TO BE SOLVED: To prevent the propagation mode of light on the terminal-processed end from falling into disorder in an optical fiber having a plurality of kinds of pores of different diameters. SOLUTION: The photonic crystal fiber is provided with a core 1, a clad part 2 which is disposed around the core 1 and has a large number of pores 4b, 4c extended in the optical fiber axis direction, arranged in a crystal form, and an overclad part 3 formed around the clad part 2. The pores 4b, 4c comprise the first pores and the second pores having a larger diameter than that of the first pores. Edges of the pores are closed at least on an end of the photonic crystal fiber. Length L1 in the optical fiber axis direction between the closed first ends and the closed second ends is 50 μm or less. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了防止终端加工端的光的传播模式在具有多种不同直径的孔的光纤中变得无序。解决方案：光子晶体光纤设置有芯1，包层部分2，其布置在芯1周围并且具有大量沿光纤轴方向延伸的孔4b，4c，以晶体形式布置以及围绕包层部分2形成的外包层3。孔4b，4c包括第一孔，第二孔具有比第一孔更大的直径。孔隙的边缘至少在光子晶体光纤的一端封闭。闭合的第一端和闭合的第二端之间的光纤轴方向的长度L1为50μm以下。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005515417A Symmetric decrease polarized light optic gyroscope 审中-公开
公开(公告)号：JP2005515417A
公开(公告)日：2005-05-26
申请号：JP2003560475
申请日：2002-12-16
申请人：ハネウェル・インターナショナル・インコーポレーテッド
发明人：カリスゼック，アンドリュー , スザフラニック，ボグダン , ランゲ，チャールズ
IPC分类号： G01C19/72 , G02B6/024 , G02B6/17
CPC分类号： G01C19/721
摘要：単一モード（ＳＭ）ファイバループに結合された偏光維持（ＰＭ）ファイバのほぼ同一の第１のファイバセグメントおよび第２のファイバセグメントを有する減偏光子を含む光ファイバジャイロスコープ（ＦＯＧ）。第１のＰＭファイバセグメントは、それが接続されるセクションの偏光の主軸間において、約３５°から５５°の角度を有するスプライスを介して１つに接続されたファイバのセクションを含む。同様に、第２のＰＭファイバセグメントは、それが接続されるセクションの偏光の主軸間において、約３５°から５５°の角度を有するスプライスを介して１つに接続されたファイバのセクションを含む。各ファイバセクションの長さは、ＳＭファイバループの熱的対称性および機械的対称性を維持するように選択される。

3. 发明专利

JP2004264439A Polarization keeping optical fiber 审中-公开
公开(公告)号：JP2004264439A
公开(公告)日：2004-09-24
申请号：JP2003053339
申请日：2003-02-28
申请人： Mitsubishi Cable Ind Ltd , 三菱電線工業株式会社
发明人： SUZUKI AKIHITO , KOYANAGI SHIGEKI
IPC分类号： G02B6/032 , G02B6/02 , G02B6/024 , G02B6/255 , G02B6/17
CPC分类号： G02B6/02338 , G02B6/02333 , G02B6/02347 , G02B6/02357 , G02B6/02371 , G02B6/024 , G02B6/2551
摘要： PROBLEM TO BE SOLVED: To reduce connection loss when connected to another optical fiber by fusion while maintaining a polarization keeping characteristic and an optical amplification characteristic. SOLUTION: A photonic crystal fiber 10 confining the light in an optical propagation region 14 inside a multi-hole part 16 is used as the polarization keeping optical fiber. A 1st additive (erbium) consisting of a rare earth element and a 2nd additive (germanium) for making the refractive index larger than that of the optical propagation region 14 are added to a core part formed inside the optical propagation region 14. The cross sectional form of the core part 12 is elliptic. COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2004246091A Polarization maintaining optical fiber and its manufacturing method 审中-公开
标题翻译：极化维护光纤及其制造方法
公开(公告)号：JP2004246091A
公开(公告)日：2004-09-02
申请号：JP2003036049
申请日：2003-02-14
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： MIKAWA IZUMI , KUROKAWA KENJI , TAJIMA KATSUSUKE , NAKAJIMA KAZUHIDE , SHU TAKESHI
IPC分类号： G02B6/02 , C03B37/012 , C03B37/02 , G02B6/024 , G02B6/10 , G02B6/17
CPC分类号： C03B37/01217 , C03B37/01231 , C03B2203/12 , C03B2203/16 , C03B2203/30
摘要： PROBLEM TO BE SOLVED: To provide a polarization maintaining optical fiber which can easily be manufactured without requiring a dedicated manufacturing line. SOLUTION: The polarization maintaining optical fiber 10 comprises a core 11 as its center part and a clad 12 around it and has such a characteristic that the core 11 has a relatively larger refractive index than the clad 12, and a void 13 bored in the core 11 is made to be rectangular. COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：提供一种在不需要专用生产线的情况下容易制造的偏振保持光纤。解决方案：偏振保持光纤10包括芯11作为其中心部分，围绕其包围12，并且具有使芯11具有比包层12相对更大的折射率的特性，并且空隙13钻孔在芯11中被制成矩形。版权所有（C）2004，JPO＆NCIPI

5. 发明专利

JP2004205811A Polarization beam splitter 有权
公开(公告)号：JP2004205811A
公开(公告)日：2004-07-22
申请号：JP2002374806
申请日：2002-12-25
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： OUCHI YASUHIRO
IPC分类号： G02B6/024 , G02B6/287 , G02B6/17
摘要： PROBLEM TO BE SOLVED: To provide a polarization beam splitter which has superior characteristics of all of light resistance, long-period stability, a price, production machinability, etc. SOLUTION: The polarization beam splitter 10 is so configured that the output of a polarization holding optical fiber coupler 11 of a precedent stage is inputted to polarization holding optical fiber couplers 12a and 12b of a trailing stage. Specially, the polarization optical fiber couplers 11, 12a, and 12b having different center wavelengths of extinction ratios are preferably connected in stages. Polarization holding optical fibers constituting the polarization holding optical fiber couplers 11, 12a, and 12b are preferably such that a concentric circle of a core or a clad does neither touches a stressing section nor includes the stressing section in it and the maximum diameter is ≥20 μm. Further, the polarization holding optical fiber constituting the polarization holding optical couplers 11, 12a, and 12b are preferably PANDA type optical fibers or bow-tie type optical fibers. COPYRIGHT: (C)2004,JPO&NCIPI

6. 发明专利

JP2004067438A Method of manufacturing optical fiber 有权
公开(公告)号：JP2004067438A
公开(公告)日：2004-03-04
申请号：JP2002228336
申请日：2002-08-06
申请人： Mitsubishi Cable Ind Ltd , Nippon Telegr & Teleph Corp , 三菱電線工業株式会社 , 日本電信電話株式会社
发明人： YAMATORI SHINYA , SUZUKI AKIHITO , FUJITA MORIYUKI , KAWANISHI SATOKI , SUZUKI KAZUNOBU , KUBOTA HIROKAZU
IPC分类号： G02B6/00 , C03B37/012 , G02B6/024 , G02B6/17
CPC分类号： C03B37/01211 , C03B37/01217 , C03B2201/31 , C03B2201/32 , C03B2203/31
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing an optical fiber by which the optical fiber used as a polarizer is inexpensively and simply manufactured. SOLUTION: A core rod 3 formed by doping Ge on the center axis of a quartz pipe 2 is arranged and an optical attenuation rod 4, 4 formed by doping Al which is an optical attenuating material on both sides in a high concentration is arranged. An optical fiber preform 1 is formed by packing a clad rod 5 into the residual part of holes of the quartz pipe 2. The optical Fiber is the polarizer emitting polarized light in the oscillation direction vertical in the figure. COPYRIGHT: (C)2004,JPO

7. 发明专利

JP2004048542A Polarization mode dispersion suppressing and transmitting device 审中-公开
公开(公告)号：JP2004048542A
公开(公告)日：2004-02-12
申请号：JP2002205286
申请日：2002-07-15
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： ITO TOSHIO , SATOU RIEKO , SUZUKI YASUHIRO
IPC分类号： G02B6/024 , G02F1/01 , G02F1/35 , H04B10/2507 , H04B10/2569 , H04J14/00 , H04J14/02 , H04B10/02 , G02B6/17 , H04B10/18
摘要： PROBLEM TO BE SOLVED: To compensate the polarization mode dispersion of a wavelength multiplexing optical pulse even when the wavelength multiplexing optical pulse is inputted. SOLUTION: A polarization mode dispersion suppressing and transmitting device 500 is configured of an optical fiber 501 and an optical fiber 527 for applying polarization mode dispersion, and arranged at the input stage of a polarization mode dispersion suppressing device 550. The polarization dispersion mode of the polarization mode dispersion suppressing and transmitting device 500 increases/decreases in a B(nm) cycle on a wavelength axis. A wavelength band A(nm) of each of inputted wavelength multiplexing optical pulses 502 and 524 to 526 is made larger than the B (for example, 5 times or more). When the optical pulses 502 and 524 to 526 having the wide wavelength bands are inputted to the wavelength mode dispersion suppressing and transmitting device 500, the whole polarization mode dispersion is averaged so as to be set as a fixed value(which is almost 0). COPYRIGHT: (C)2004,JPO

8. 发明专利

JP3478633B2 Optical fiber polarimetric riser and a method of manufacturing the same 失效
公开(公告)号：JP3478633B2
公开(公告)日：2003-12-15
申请号：JP6812095
申请日：1995-03-27
申请人：多摩川精機株式会社
发明人：道彦三村
IPC分类号： G02B6/024 , G02B6/02 , G02B6/10 , G02B6/17

9. 发明专利

JP2003525193A 失效
公开(公告)号：JP2003525193A
公开(公告)日：2003-08-26
申请号：JP2001563441
申请日：2000-06-13
IPC分类号： G02B6/24 , C03B37/012 , C03B37/075 , G02B6/024 , G02B6/10 , G02B6/36 , G02B6/17

10. 发明专利

JP2003222740A POLARIZATION RETENTION PHOTONIC CRYSTAL FIBER 审中-公开
公开(公告)号：JP2003222740A
公开(公告)日：2003-08-08
申请号：JP2002019529
申请日：2002-01-29
申请人： MITSUBISHI CABLE IND LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： TANAKA MASATOSHI , YAMATORI SHINYA , FUJITA MORIYUKI , KAWANISHI SATOKI , SUZUKI KAZUNOBU , KUBOTA HIROKAZU
IPC分类号： G02B6/00 , G02B6/02 , G02B6/024 , G02B6/10 , G02B6/17
摘要： PROBLEM TO BE SOLVED: To provide a polarization retention photonic crystal fiber that can easily discriminate a polarization surface by observation using a microscope. SOLUTION: Since a pair of pores 4b that oppose each other by sandwiching a core 1 in six pores 4a and 4b adjacent to the core 1 has a diameter larger than the other four pores 4a, a polarization retention photonic crystal fiber 10 has a polarization-retaining function. The section of a cladding section 2 comprising a number of pores 4a and 4b at the periphery of the core 1 is in a diamond shape. Therefore, the maximum width of the cladding section 2 observed from the side of the fiber 10 appears each time when the fiber 10 is rotated by 180°, and the minimum width also appears in the similar manner. Since the width directions of the maximum and minimum widths coincide with the polarization direction of the polarization surface, the direction of the polarization surface of the polarization retention photonic crystal fiber 10 can be discriminated by microscope observation from the side of the fiber 10. COPYRIGHT: (C)2003,JPO

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