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1. 发明专利

JP2001235691A OPTICAL SWITCH 失效
公开(公告)号：JP2001235691A
公开(公告)日：2001-08-31
申请号：JP2000044487
申请日：2000-02-22
申请人： HITACHI LTD , HITACHI CABLE
发明人： HORINO MASAYA , KAJIYAMA SHINICHI , HAJIKAWA SATORU
IPC分类号： G02B26/08
摘要： PROBLEM TO BE SOLVED: To provide an optical switch is capable of always efficiently switching routes of light by suppressing the occurrence of insertion loss and reflected return light regardless of a change in an environmental temperature. SOLUTION: Photoconductive cores 41 and 44 of the optical switch are previously offset by as much as an offset quantity Δy calculated by Δy=z.tan(sin-1(c1 sinθ)-θ) when the refractive indices of these cores are defined as c1, the refractive index of air as c0, the polishing angle of an optical fiber end face as θand the distance between the input core 41 and the output core 44 as (z).

2. 发明专利

JP2005107552A Optical switch and its waveguide manufacturing method 有权
标题翻译：光开关及其波导制造方法
公开(公告)号：JP2005107552A
公开(公告)日：2005-04-21
申请号：JP2005001446
申请日：2005-01-06
申请人： Hitachi Cable Ltd , Hitachi Ltd , 日立電線株式会社 , 株式会社日立製作所
发明人： HORINO MASAYA , KAJIYAMA SHINICHI , HAJIKAWA SATORU
IPC分类号： G02B26/08
摘要： PROBLEM TO BE SOLVED: To ease the assembling process of an optical switch in which generation of insertion loss and reflection returning light beams is suppressed regardless of the changes in environmental temperature and an optical path is always switched in an effective manner. SOLUTION: The optical switch is provided with a base 19, an input side waveguide chip 2 and an output side waveguide chip 4 which are provided on the base, an input side silicon block 3 which is provided on the input side waveguide chip, an output side silicon block 5 which is provided on the output side waveguide chip. The end faces of the input side waveguide chip and the output side waveguide chip, which face each other, have an angle that is greater than 0 degree with respect to the vertical direction to the surface of the base. The input side silicon block and the output side silicon block are not arranged in the vertical direction with respect to the surface of the base in the gap between the input side waveguide chip and the output side waveguide chip. Thus, observation can be made from the top of the gap between the input side waveguide chip and the output side waveguide chip to ease the assembling process of the optical switch. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了简化不管环境温度变化而抑制插入损耗和反射返回光束的产生的光开关的组装过程，并且始终以有效的方式切换光路。解决方案：光开关设置有设置在基座上的基座19，输入侧波导芯片2和输出侧波导芯片4，输入侧硅块3设置在输入侧波导芯片输出侧硅块5，其设置在输出侧波导芯片上。彼此面对的输入侧波导芯片和输出侧波导芯片的端面相对于基板的表面的垂直方向具有大于0度的角度。输入侧硅块和输出侧硅块在输入侧波导芯片和输出侧波导芯片之间的间隙中相对于基板的表面没有布置在垂直方向上。因此，可以从输入侧波导芯片和输出侧波导芯片之间的间隙的顶部进行观察，以便于光开关的组装处理。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2002023077A OPTICAL SWITCH FOR OPTICAL FIBER 失效
公开(公告)号：JP2002023077A
公开(公告)日：2002-01-23
申请号：JP2000204854
申请日：2000-07-06
申请人： HITACHI CABLE , HITACHI LTD
发明人： KAJIYAMA SHINICHI , HAJIKAWA SATORU , KUROSAWA MASAAKI , HORINO MASAYA
IPC分类号： G02B6/40 , G02B26/08
摘要： PROBLEM TO BE SOLVED: To provide an optical switch, with which switching operation for the optical axis of an optical fiber is facilitated, the optical axes of the optical fibers are surely matched and switching reproducibility for the optical axis of the optical fiber is satisfactory. SOLUTION: This device is provided with a central yoke 4 having a permanent magnet 5, main body 3 of yoke having exciting coils 7a and 7b and two both terminal yokes 6a and 6b, two actuators 8a and 8b, movable block 9 of magnetic substance installed between them and sucked by the permanent magnet, guide block 10 having an optical fiber mounting groove 12a housed in the movable block for mounting an optical fiber 11a for optical path switching and pin holes 13a and 13b and fixed stand 14 having guide pins 15a and 15b to be inserted to the pin holes for helping the slide of the movable block, each of pin holes permits only the horizontal movement of the guide block while holding the guide pin between two sides, the movable block is driven orthogonally with the optical axis by controlling two actuators, and the optical path is switched by moving the optical fiber for optical path switching mounted on the guide block.

4. 发明专利

JP2006275705A Device and method for compensating temperature characteristic of photoreception element 审中-公开
标题翻译：补偿光电元件温度特性的装置及方法
公开(公告)号：JP2006275705A
公开(公告)日：2006-10-12
申请号：JP2005094063
申请日：2005-03-29
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： ITO MASANORI , HAJIKAWA SATORU , OGURA AKIRA
IPC分类号： G01J1/44 , H01L31/10
摘要： PROBLEM TO BE SOLVED: To provide a device for compensating a temperature characteristic of a light receiving element capable of detecting precisely light intensity over a wide range by the light receiving element, and capable of compensating the temperature characteristic of the light receiving element. SOLUTION: In this device 1 provided with the light receiving element 2 in an optical path of an optical module, for monitoring the light intensity of a light signal transmitted through the optical path, by the light receiving element element 2, for regulating the light intensity of the light signal on the basis of a light receiving element output detected by the light receiving element 2, and for compensating the temperature characteristic of the light receiving element 2, a temperature characteristic curve indicating a relationship between the light receiving element output and the light intensity of the light signal is found preliminarily in every ambient temperature of the light receiving element 2, a temperature characteristic data is prepared on the basis thereof to be stored in a control means 5, the light intensity of the light signal is regulated referring to the temperature characteristic data on the basis of the light receiving element output and the ambient temperature of the light receiving element 2, by the control means 5, when operating the optical module, and the temperature characteristic of the light receiving element 2 is compensated also therein. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于补偿能够通过光接收元件在宽范围内精确地检测光强的光接收元件的温度特性的装置，并且能够补偿光接收元件的温度特性。解决方案：在光学模块的光路中设置有光接收元件2的装置1中，用于监视通过光路传输的光信号的光强度，由光接收元件2调节基于由光接收元件2检测到的受光元件输出的光信号的光强度，以及用于补偿光接收元件2的温度特性的温度特性曲线，表示光接收元件输出并且在光接收元件2的每个环境温度下预先找到光信号的光强度，基于该温度特性数据准备存储在控制装置5中，对光信号的光强度进行调节参考基于光接收元件输出的温度特性数据和环境温度控制装置5中的光接收元件2在操作光学模块时，还补偿了光接收元件2的温度特性。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2005321711A Variable optical attenuator 审中-公开
标题翻译：可变光学衰减器
公开(公告)号：JP2005321711A
公开(公告)日：2005-11-17
申请号：JP2004141235
申请日：2004-05-11
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： SATO SHINOBU , HAJIKAWA SATORU , OGURA AKIRA
IPC分类号： G02F1/01
摘要： PROBLEM TO BE SOLVED: To suppress cost increase due to optical fiber connection in a variable optical attenuator connected in series and to provide a variable optical attenuator having high attenuation characteristics with low power consumption. SOLUTION: In the variable optical attenuator comprising the variable optical attenuator bodies 12, 14, which are constructed by using a phase modulator made of an optical waveguide type Mach Zehnder interferometer and a thin film heater 15, connected in series, the variable optical attenuator is constructed by mounting a reflection member 5 between the variable optical attenuator bodies 12, 14 connected in series, and making light outputted from one of the variable optical attenuator body 12 be reflected on the reflection member 5 and be inputted to the other variable optical attenuator body 14. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：为了抑制串联连接的可变光衰减器中的光纤连接造成的成本增加，并提供具有低功耗的高衰减特性的可变光衰减器。解决方案：在包括可变光衰减器体12,14的可变光衰减器中，其通过使用由光波导型马赫策德干涉仪构成的相位调制器和薄膜加热器15构成，串联连接，变量光衰减器通过将反射构件5安装在串联连接的可变光衰减体12,14之间并使从可变光衰减器体12之一输出的光在反射构件5上反射并输入到另一变量光衰减器体14.版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2002268023A VARIABLE LIGHT WAVELENGTH MULTIPLEXER DEMULTIPLEXER 失效
公开(公告)号：JP2002268023A
公开(公告)日：2002-09-18
申请号：JP2001065287
申请日：2001-03-08
申请人： HITACHI CABLE
发明人： ISHIKAWA HIROSHI , OKAWA MASAHIRO , MARU KOICHI , HAJIKAWA SATORU , TAMURA TSUNASATO
IPC分类号： G02B6/12 , G02F1/01
摘要： PROBLEM TO BE SOLVED: To provide a variable light wavelength multiplexer demultiplexer which has small power consumption and can have its wavelength range widely varied. SOLUTION: The temperature of all the waveguides of a waveguide array 5 can be varied at a time over a wide temperature range by electrifying a heater film 11 provided on the waveguide array 5. Multiplexing and demultiplexing characteristics of this multiplexer demultiplexer depend upon the optical path length difference between adjacent waveguides and the optical path length difference is controlled by the temperature of the waveguide array 5 through the refractive index of the waveguides. Consequently, multiplexing and demultiplexing characteristics can be varied with the electric power supplied to the heater film 11.

7. 发明专利

JP2004309747A Optical variable attenuator 审中-公开
公开(公告)号：JP2004309747A
公开(公告)日：2004-11-04
申请号：JP2003102524
申请日：2003-04-07
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： SATO SHINOBU , HAJIKAWA SATORU , TAKASUGI SATORU
IPC分类号： G02F1/01
摘要： PROBLEM TO BE SOLVED: To provide a multichannel integration type optical variable attenuator which has a low polarization-dependent loss. SOLUTION: The optical variable attenuator 1 has an optical waveguide element 3, where optical variable attenuating circuits 2a to n attenuating and outputting inputted light are formed, mounted in a package 44, and highly heat conductive members 5a and 5b are provided between the optical waveguide element 3 and package 44 while divided into at least two or more parts. COPYRIGHT: (C)2005,JPO&NCIPI

8. 发明专利

JP2004151671A Waveguide type variable optical attenuator 有权
公开(公告)号：JP2004151671A
公开(公告)日：2004-05-27
申请号：JP2003115502
申请日：2003-04-21
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： CHIBA TAKASHI , TAKASUGI SATORU , HAJIKAWA SATORU , UETSUKA NAOTO
IPC分类号： G02B6/00 , G02B6/12 , G02F1/01 , G02F1/225
CPC分类号： G02F1/225 , G02F1/0147 , G02F2001/0113 , G02F2203/48
摘要： PROBLEM TO BE SOLVED: To provide a waveguide type variable optical attenuator which stops the increase in polarization dependent loss dispersion according as the attenuation rate increases, which can acquire attenuation rate of 30dB or more by this, and which suppresses the power consumption. SOLUTION: Even when the difference of the attenuation rate (PLD: polarization dependent loss dispersion) occurs between a vertical polarization and a horizontal polarization in a channel waveguide 5a in a first symmetric Mach-Zehnder optical circuit 10a, the horizontal / vertical ingredients are exchanged by a polarization maintaining fiber 12, and income into a second symmetric Mach-Zehnder optical circuit 10b. As the difference of the attenuation rate occurs in the second symmetric Mach-Zehnder optical circuit 10b as well, the PDL occurred in the first symmetric Mach-Zehnder optical circuit 10a is offset in the second symmetric Mach-Zehnder optical circuit 10b. COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2003149610A WAVEGUIDE TYPE OPTICAL VARIABLE ATTENUATOR 审中-公开
公开(公告)号：JP2003149610A
公开(公告)日：2003-05-21
申请号：JP2001345948
申请日：2001-11-12
申请人： HITACHI CABLE
发明人： HAJIKAWA SATORU , TAKASUGI SATORU
IPC分类号： G02F1/01
摘要： PROBLEM TO BE SOLVED: To provide a waveguide type optical variable attenuator capable of accurately controlling light attenuation quantity regardless of the fluctuation of a heater resistance value due to a long-term operation. SOLUTION: This waveguide type optical variable attenuator having an optical circuit composed of a Y branch having two arm waveguides 23A and 23B or a Mach-Zehnder optical interferometer circuit, and thin film heaters 25A and 25B provided in one or both of the arm waveguides 23A and 23B for heating the arm waveguides 23A and 23B so as to change the refractive index of the arm waveguides 23A and 23B, is provided with a power control power supply 29 which is connected to either the thin film heater 25A or 25B, controls voltage and applies the controlled voltage to the thin film heaters 25A and 25B so as to make a power value fed to the thin film heaters 25A and 25B to be a desired value.

10. 发明专利

JP2013235113A Dicing method for optical waveguide with cover lid 审中-公开
标题翻译：具有盖子的光波导的方法
公开(公告)号：JP2013235113A
公开(公告)日：2013-11-21
申请号：JP2012107005
申请日：2012-05-08
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： TAKASUGI SATORU , ARAI HIDEAKI , GOTO RYOHEI , HAJIKAWA SATORU
IPC分类号： G02B6/13 , B24B27/06
摘要： PROBLEM TO BE SOLVED: To provide a dicing method for an optical waveguide with a cover lid by which the time required for dicing can be shortened while the quality of wafer dicing is maintained.SOLUTION: In a dicing method for an optical waveguide with a cover lid produced by sticking a cover lid 73 onto the surface of a wafer 70 with an optical waveguide 72 formed, the same dicing street 92 is subjected to dicing a plurality of number of times.
摘要翻译：要解决的问题：提供一种具有盖盖的光波导的切割方法，由此可以缩短切割所需的时间，同时保持晶片切割的质量。解决方案：在具有盖的光波导的切割方法中通过将盖盖73粘贴在形成有光波导72的晶片70的表面上而产生的盖子，对相同的切割街道92进行多次切割。

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