专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2007322599A Optical device 审中-公开
标题翻译：光学装置
公开(公告)号：JP2007322599A
公开(公告)日：2007-12-13
申请号：JP2006151168
申请日：2006-05-31
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SHIRAISHI TAKASHI , HASEGAWA SATORU , DOI MASAHARU , TANAKA KAZUHIRO
IPC分类号： G02F1/035
CPC分类号： G02F1/0356
摘要： PROBLEM TO BE SOLVED: To provide an optical device which can effectively prevent deterioration in performance due to a characteristic of a reversed polarization region with respect to the optical device having the reversed polarization region.
SOLUTION: Optical waveguides A, B of a Mach-Zehnder optical modulator are usually formed on -Z surface which is a non-reversed polarization region. When a signal electrode 11 and a ground electrode 10 are disposed asymmetrically on two waveguides, however, chirp signals are undesirably produced in output light and, therefore, these electrodes are symmetrically disposed on the two waveguides. For effective optical modulation, it is necessary to partially reverse the polarization of a substrate on which an optical waveguide exists. By reversed polarization, the optical waveguide is formed on +Z surface. On the +Z surface, however, charges are accumulated and the performance of the optical modulator is adversely affected because of unstable spontaneous polarization on the reversed polarization region and, therefore, a conductive amorphous layer is formed on the surface of the reversed polarization region.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供一种能够有效地防止由于具有反向偏振区域的反偏振区域的特性而导致的性能劣化的光学装置。解决方案：马赫 - 策德尔光调制器的光波导A，B通常形成在非反相偏振区域的-Z表面上。然而，当信号电极11和接地电极10非对称地布置在两个波导上时，在输出光中不期望地产生线性调频信号，因此这些电极对称地设置在两个波导上。为了有效的光调制，需要部分地反转存在光波导的基板的偏振。通过反向偏振，光波导形成在+ Z表面上。然而，在+ Z表面上，由于反向偏振区域上的自发极化不稳定，因此积累了电荷并且光调制器的性能受到不利影响，因此在反向偏振区域的表面上形成导电非晶层。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2007302717A Sulfonated aromatic polyimide, electrolyte membrane and solid state electrolyte for fuel cell, and fuel cell 审中-公开
标题翻译：磺化芳族聚酰胺，电解质膜和固体电解质燃料电池和燃料电池
公开(公告)号：JP2007302717A
公开(公告)日：2007-11-22
申请号：JP2006129667
申请日：2006-05-08
申请人： Fujitsu Ltd , Yamaguchi Univ , 国立大学法人山口大学 , 富士通株式会社
发明人： YOSHINO MAKOTO , OKAMOTO KENICHI , CHIN SHINPEI , TANAKA KAZUHIRO
IPC分类号： C08G73/10 , H01B1/06 , H01M8/02 , H01M8/10
CPC分类号： Y02E60/523
摘要： PROBLEM TO BE SOLVED: To provide a sulfonated aromatic polyimide excellent in proton conductivity and waterproof property, and having a high heat resistance and durability, an electrolyte membrane and a solid electrolyte for a fuel cell containing the same, and the fuel cell. SOLUTION: This sulfonated aromatic polyimide has at least a structural unit expressed by general formula (1) and a structural unit expressed by general formula (2). COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供质子传导性和防水性优异，耐热性和耐久性高的磺化芳香族聚酰胺，包含该电解质膜和固体电解质的燃料电池，以及燃料电池。解决方案：该磺化芳族聚酰亚胺至少具有由通式（1）表示的结构单元和由通式（2）表示的结构单元。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2007248944A Optical modulator 有权
标题翻译：光学调制器
公开(公告)号：JP2007248944A
公开(公告)日：2007-09-27
申请号：JP2006073926
申请日：2006-03-17
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SUGIYAMA MASAKI , TANAKA KAZUHIRO
IPC分类号： G02F1/035
CPC分类号： G02F1/0356 , G02F2201/122 , G02F2203/25
摘要： PROBLEM TO BE SOLVED: To provide an optical modulator with simple structure by which extension of a modulation band and suppression of wavelength chirp are attained at the same time.
SOLUTION: The optical modulator modulates light propagated on the optical waveguide 10 by forming a Mach-Zehnder type optical waveguide 10 on a substrate 1 having an electrooptic effect, providing a signal electrode 21 and a ground electrode 22 along a pair of branching waveguides 13a, 13b of the optical waveguide 10 and applying an electric signal S to the signal electrode 21. At the time, a first area A and a second area B are set in a mutual action part of the light and the electric signal S, polarization reversal areas R
A , R
B are formed in respective areas and an arrangement pattern of the signal electrode 21 is determined so that the directions of modulation in respective areas are reversed.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有简单结构的光调制器，通过该光调制器可以同时实现调制带的延伸和波长啁啾的抑制。解决方案：光调制器通过在具有电光效应的基板1上形成马赫 - 曾德尔型光波导10来调制在光波导10上传播的光，沿着一对分支提供信号电极21和接地电极22 光波导10的波导13a，13b，并向信号电极21施加电信号S.此时，第一区域A和第二区域B设置在光和电信号S的相互作用部分中，在相应的区域中形成极化反转区域R A ，并且确定信号电极21的布置图案，使得各区域中的调制方向相反。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2005202426A Wavelength splitting device 有权
标题翻译：波长分割设备
公开(公告)号：JP2005202426A
公开(公告)日：2005-07-28
申请号：JP2005051627
申请日：2005-02-25
申请人： Fujitsu Ltd , 富士通株式会社
发明人： TANAKA KAZUHIRO , NAKAGAWA KOJI , YAMAZAKI YOSUKE , TABUCHI HARUHIKO
IPC分类号： G02B6/12
摘要： PROBLEM TO BE SOLVED: To provide a wavelength splitting device which can reduce insertion loss of light by providing a structure capable of inserting and holding a filter vertically to a waveguide. SOLUTION: In the wavelength splitting device, a 1st waveguide, a 2nd waveguide and a 3rd waveguide are formed on a waveguide substrate and further an insertion groove for inserting a wavelength selection filter which reflects light of a first wavelength to the second waveguide and guides light of a second wavelength to the third waveguide, is provided. The wavelength selection filter is inserted in the insertion groove and the wavelength selection filter is pushed to a wall surface of the insertion groove by a wedge further inserted into the insertion groove. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够通过提供能够将滤波器垂直地插入并保持在波导上的结构来减少光的插入损耗的波长分离装置。解决方案：在波长分离装置中，在波导基板上形成第一波导，第二波导和第三波导，并且还具有用于将将第一波长的光反射到第二波导的波长选择滤波器的插入槽并且向第三波导引导第二波长的光。波长选择滤光器插入插入槽中，并且波长选择滤光器通过进一步插入到插入槽中的楔子被推到插入槽的壁表面。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2010066663A Optical device and optical transmitter 审中-公开
标题翻译：光学器件和光学发射器
公开(公告)号：JP2010066663A
公开(公告)日：2010-03-25
申请号：JP2008234601
申请日：2008-09-12
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SUGIYAMA MASAKI , TANAKA KAZUHIRO
IPC分类号： G02F1/035
CPC分类号： G02F1/2255
摘要： PROBLEM TO BE SOLVED: To improve a device scale and power consumption and to generate QAM signals. SOLUTION: The optical device is provided with multivalue modulation parts 25 and 26 for performing mutually independent multivalue modulation for input light, and one multivalue modulation part 25 includes an inner side Mach-Zehnder waveguide 25a having two inner side arm waveguides 25ab and 25ac, and two signal electrodes 25b-1 and 25b-2 for supplying the electric field for supplying interaction with light propagated through the inner side Mach-Zehnder waveguide. The inner side Mach-Zehnder waveguide or the signal electrodes are provided with even number of pieces of crossing parts where a pair of the inner side arm waveguide and the signal electrode for supplying the electric field for giving the interaction is mutually replaced, and a polarization inversion area 11 is formed in the light propagation area of the inner side arm waveguide in which at least one of the crossing parts is a boundary. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提高设备规模和功耗，并产生QAM信号。解决方案：光学装置设置有用于对输入光进行相互独立的多值调制的多值调制部分25和26，并且一个多值调制部分25包括具有两个内侧臂波导25ab的内侧马赫 - 曾德波导25a和 25ac和两个信号电极25b-1和25b-2，用于提供与通过内侧Mach-Zehnder波导传播的光的相互作用的电场。内侧Mach-Zehnder波导或信号电极设置有偶数个交叉部分，其中一对内侧臂波导和用于提供用于给予相互作用的电场的信号电极被相互替代，并且极化反转区域11形成在内侧臂波导的光传播区域中，其中至少一个交叉部分是边界。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2010139572A Polarization conversion device and polarization multiplexing modulator 有权
标题翻译：极化转换器件和极化多重调制器
公开(公告)号：JP2010139572A
公开(公告)日：2010-06-24
申请号：JP2008313622
申请日：2008-12-09
申请人： Fujitsu Ltd , 富士通株式会社
发明人： DOI MASAHARU , TANAKA KAZUHIRO
IPC分类号： G02B6/14 , G02B6/12 , G02F1/035
CPC分类号： G02B6/2726 , G02B6/2773 , G02F1/0353 , G02F2001/0139
摘要： PROBLEM TO BE SOLVED: To effectively prevent deterioration of polarization extinction ratio of output light in a reflection type polarization conversion device. SOLUTION: The polarization conversion device converts the polarization state of light input to a first waveguide 2, that is, TE/TM mode of light, and outputs the same from the first waveguide 2. The light in the TM mode input to the first waveguide 2 is passed twice through a 1/4 wave plate 20 while being propagated through a connection waveguide 4 to be converted to the TE mode (a mode conversion part), and input to a polarization beam splitter 10. The polarization beam splitter 10 splits the input light into the TE mode light and the TM mode light, and the TE mode light is output to the first waveguide 2 (a polarization splitting part). COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：有效地防止反射型偏振转换装置中的输出光的偏振消光比的劣化。解决方案：偏振转换装置将光输入的偏振态转换为第一波导2，即TE / TM光模，并从第一波导2输出。TM模式中的光输入到第一波导2在通过连接波导4传播通过1/4波片20的同时通过两次以转换为TE模式（模式转换部分），并输入到偏振分束器10.偏振分束器 10将输入光分解成TE模式光和TM模式光，TE模式光被输出到第一波导2（偏振分离部分）。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2008070648A Waveguide type optical device and its manufacturing method 有权
标题翻译：波导型光学器件及其制造方法
公开(公告)号：JP2008070648A
公开(公告)日：2008-03-27
申请号：JP2006249866
申请日：2006-09-14
申请人： Fujitsu Ltd , 富士通株式会社
发明人： TANAKA KAZUHIRO , DOI MASAHARU
IPC分类号： G02B6/122 , G02B6/13
CPC分类号： G02B6/126 , G02B6/13 , G02B2006/12109 , G02B2006/12116
摘要： PROBLEM TO BE SOLVED: To reduce coupling loss of guiding light even in a structure with a groove formed in a waveguide, and to prevent an auxiliary plate from peeling from a substrate, with respect to a waveguide type optical device and a manufacturing method thereof in which a functional thin film is inserted in the groove straddling over a waveguide layer formed on the substrate. SOLUTION: The waveguide type optical device includes: a substrate 12A on which a waveguide 13 is formed; a machining auxiliary plate 16A which is joined onto the substrate 12A with an adhesive 17; and a thin film inserting groove 14 which is formed from the machining auxiliary plate 16A over to the substrate 12A in a manner of cutting the waveguide 13 and which is designed to insert the functional thin film 15. In this optical device, the machining auxiliary plate 16A is made of a material having nearly the same thermal expansion coefficient and refractive index as the substrate 12A. Also, assuming that, at the formation position of the machining auxiliary plate 16A, ΔW is a distance between the machining auxiliary plate 16A and the waveguide 13 and that λ is a frequency of light propagating the waveguide 13, the distance ΔW is set at 0≤ΔW≤0.08×λ. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使在波导管中形成的槽的结构中，也可以减少引导光的耦合损耗，并且防止辅助板从基板上剥离，相对于波导型光学器件和制造其功能薄膜插入跨越形成在基板上的波导层的沟槽中。解决方案：波导型光学器件包括：形成有波导13的基板12A; 用粘合剂17接合到基板12A上的加工辅助板16A; 以及由加工辅助板16A形成的薄膜插入槽14，以切割波导13的方式插入到基板12A上，并且被设计成插入功能薄膜15.在该光学装置中，加工辅助板 16A由具有与衬底12A几乎相同的热膨胀系数和折射率的材料制成。此外，假设在加工辅助板16A的形成位置，ΔW为加工辅助板16A与波导管13的距离，λ为传播波导管13的光的频率，距离ΔW被设定为0 ≤ΔW≤0.08×λ。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2000171668A FERRULE ASSEMBLY AND OPTICAL MODULE 失效
公开(公告)号：JP2000171668A
公开(公告)日：2000-06-23
申请号：JP35053598
申请日：1998-12-09
申请人： FUJITSU LTD
发明人： NOBUHARA HIROYUKI , NAKAGAWA KOJI , TANAKA KAZUHIRO
IPC分类号： G02B6/36 , G02B6/30 , G02B6/38 , G02B6/42
摘要： PROBLEM TO BE SOLVED: To obtain a receptacle type optical module suitable for cost reduction and miniaturization by providing a ferrule which has a throughhole, and an optical fiber which is fixedly inserted into the throughhole, and also providing the ferrule with a notched flat part in the manner that the optical fiber inserted into the throughhole is half exposed. SOLUTION: A hemihedrally notched ferrule assembly 16 contains a ferrule 18 which has a throughhole 20 and a bare optical fiber 22 which is fixedly inserted into the throughhole 20. The ferrule 18 is provided with a notched flat part 24 in the maner that the optical fiber 22 inserted into the throughhole 20 is half exposed. The notched flat part 24 with a part of the ferrule 18 notched is first formed and, in this state, the bare optical fiber 22 is inserted into the throughhole 20. The hemihedrally notched ferrule assembly 16 is turned over, the bare optical fiber 22 is inserted into a V-groove 14 so that one end 22a of the optical fiber 22 can be butted to one end of the core 10 of an optical waveguide, and then, the assembly 16 is stuck to a silicone substrate 6 at the notched flat part 24.

9. 发明专利

JPH11119064A OPTICAL TRANSMISSION TERMINAL DEVICE 失效
公开(公告)号：JPH11119064A
公开(公告)日：1999-04-30
申请号：JP28509997
申请日：1997-10-17
申请人： FUJITSU LTD
发明人： SASAKI MASAMI , TANAKA KAZUHIRO , YAMAZAKI YOSUKE , NAKAGAWA KOJI , MIURA KAZUNORI
IPC分类号： G02B6/30 , G02B6/42 , H01S5/00 , H01S3/18
摘要： PROBLEM TO BE SOLVED: To provide the optical transmission terminal device which is less expensive and highly reliable by providing an optical module mounted on a printed wiring board, a connecting means for the printed wiring board and a feed electrode, an optical fiber connector housing which enables connection with a 2nd optical fiber, etc. SOLUTION: An optical component mount substrate is formed of silicon, and on its top surface a groove for holding a ferrule and a bare fiber is formed by anisotropic etching. An optical module 2 is fixed at a specific position on the printed wiring board 26 by using an epoxy-based adhesive, etc. Feed electrodes 12 and 14 of the optical module 2 are connected to a wiring pattern 28 on the printed wiring board 26 by metal wires 30 and 32. Then silicone resin 34 is applied covering the optical coupling part between a photoelectric converting element 10 and an optical fiber and the electric connection part by the metal wires 30 and 32 and then cured by needed heating. Further, an optical fiber connector housing 36 is fitted to the optical module 2.

10. 发明专利

JPH1140823A PHOTODETECTOR MODULE 失效
公开(公告)号：JPH1140823A
公开(公告)日：1999-02-12
申请号：JP22595897
申请日：1997-08-22
申请人： FUJITSU LTD
发明人： NORIMATSU MASAAKI , YAMAMOTO NAOKI , MIURA KAZUNORI , TANAKA KAZUHIRO , NAKAGAWA KOJI
IPC分类号： G02B6/42 , H01L31/0232 , H01L31/0352 , H01L31/105 , H01L31/18
摘要： PROBLEM TO BE SOLVED: To reduce the capacitance of a photodetector and to enhance its operating speed by a method, wherein a light beam radiated form an optical waveguide is reflected by the first slope of a photodetector substrate, and it is reflected totally by its second slope so as to be incident nearly vertically on a light-receiving part. SOLUTION: A first slope 76 is formed to be an angle, at which a light beam 86 radiated from an end face 84a of an optical waveguide 85, is refracted to a second optical path 90 from a first optical path 88 with reference to the main face of a support substrate 44. A second slope 78 is formed to be at an angle, at which the light beam 86 refracted by the first slope 76 is reflected to a third optical path 93 from the second optical path 90. Consequently, even if the light beam 86 radiated from the end face 84a of the optical waveguide 84 is diffused a little, it is incident nearly vertically on a light-receiving part 72. As a result, the dislocation of the optical beam 86 due to the manufacturing precision of a photodetector 46A can be reduced, and the area of the light- receiving part 72 is reduced. As a result, the capacitance of the photodetector 46A can be suppressed low, and its response characteristic is enhanced.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式