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1. 发明授权

US07088875B2 Optical modulator 有权
标题翻译：光调制器
公开(公告)号：US07088875B2
公开(公告)日：2006-08-08
申请号：US10872404
申请日：2004-06-22
申请人： Masaki Sugiyama , Yumi Nakazawa, legal representative
发明人： Tadao Nakazawa, deceased
IPC分类号： G02F1/035
CPC分类号： G02F1/2255
摘要： An object of the invention is to provide a Mach-Zehnder type optical modulator that can reduce wavelength chirp occurring in a modulated light, and also can reduce an optical loss with a small sized configuration. To this end, according to the present Mach-Zehnder type optical modulator, in a configuration where optical waveguides and a coplanar electrode are formed on a substrate having an electro-optical effect, a polarization inversed region is formed in a part of an interaction portion of the substrate, and a signal electrode is arranged above one of parallel waveguides in a polarization inversed region and is arranged above the other parallel waveguide in a non-inversed region. Furthermore, a surface area of the substrate positioned on both sides of each of the parallel waveguides is lowered to provide a ridge structure section, and a buffer layer is formed on a ridge side face thereof.
摘要翻译：本发明的目的是提供一种可以减少在调制光中发生的波长啁啾的马赫 - 曾德尔型光调制器，并且还可以以小尺寸配置减少光学损耗。为此，根据本发明的Mach-Zehnder型光学调制器，在具有电光效应的基板上形成光波导和共面电极的结构中，在相互作用部分的一部分中形成偏振反转区域并且信号电极被布置在偏振反转区域中的平行波导之上，并且布置在非反相区域中的另一平行波导的上方。此外，位于每个平行波导的两侧的基板的表面积降低，以提供脊结构部分，并且在其脊侧面上形成缓冲层。

2. 发明授权

US07476038B2 Optical device module 有权
标题翻译：光器件模块
公开(公告)号：US07476038B2
公开(公告)日：2009-01-13
申请号：US10805481
申请日：2004-03-22
申请人： Yoichi Oikawa , Hirofumi Aota , Kazuaki Akimoto , Hideyuki Miyata , Yumi Nakazawa, legal representative
发明人： Tadao Nakazawa
IPC分类号： G02B6/00 , G02B6/44
CPC分类号： G02B7/008 , G02F1/116 , G02F2203/60
摘要： An optical device module includes an optical device, a soaking unit fixed to one surface of the optical device, a heating/cooling unit fixed to one surface of the soaking unit, a heat-insulating unit fixed to one surface of the heating/cooling unit, and a package that houses the optical device, the soaking unit, the heating/cooling unit, and the heat-insulating unit and to which the heat-insulating unit is fixed. The heating/cooling unit heats the optical device using self-generated heat or cools the optical device via the soaking unit.
摘要翻译：光学装置模块包括光学装置，固定在光学装置的一个表面上的均热单元，固定在均热单元的一个表面上的加热/冷却单元，固定在加热/冷却单元的一个表面上的绝热单元以及容纳光学器件，均热单元，加热/冷却单元和隔热单元并且绝热单元被固定到其上的封装。加热/冷却单元使用自发热加热光学装置，或通过均热单元冷却光学装置。

3. 发明授权

US07155072B2 Optical modulator 有权
标题翻译：光调制器
公开(公告)号：US07155072B2
公开(公告)日：2006-12-26
申请号：US11086370
申请日：2005-03-23
申请人： Masaki Sugiyama , Masaharu Doi , Yumi Nakazawa, legal representative
发明人： Tadao Nakazawa, deceased
IPC分类号： G02F1/035
CPC分类号： G02F1/2255 , G02F2001/212 , G02F2201/34
摘要： In relation to an optical modulator (e.g., an RZ optical modulator) formed from a plurality of Mach-Zehnder optical modulators, in an attempt to make the optical modulator compact and realize a low drive voltage, the optical modulator is formed by comprising a plurality of Mach-Zehnder optical modulators, each including a substrate exhibiting an electro-optical effect, an optical waveguide formed on the substrate, and electrodes formed in the vicinity of the optical waveguide. The plurality of Mach-Zehnder optical modulators are arranged on the substrate and connected into multistage.
摘要翻译：关于由多个马赫 - 曾德尔光调制器形成的光调制器（例如，RZ光调制器），为了使光调制器紧凑并实现低驱动电压，光调制器通过包括多个的Mach-Zehnder光学调制器，每个包括表现出电光效应的衬底，形成在衬底上的光波导和形成在光波导附近的电极。多个Mach-Zehnder光学调制器布置在基板上并连接到多级。

4. 发明授权

US07151866B2 Optical device module 有权
标题翻译：光器件模块
公开(公告)号：US07151866B2
公开(公告)日：2006-12-19
申请号：US10807520
申请日：2004-03-24
申请人： Yoichi Oikawa , Hirofumi Aota , Kazuaki Akimoto , Hideyuki Miyata , Yumi Nakazawa, legal representative
发明人： Tadao Nakazawa, deceased
IPC分类号： G02B6/12
CPC分类号： G02F1/125
摘要： An optical device module includes an optical device with a plurality of electrodes disposed at predetermined positions, a substrate disposed oppositely to the optical device and with wiring patterns for connecting to the electrodes, and a wiring which connects the electrodes to the wiring patterns.
摘要翻译：光学装置模块包括具有设置在预定位置的多个电极的光学装置，与光学装置相对设置的基板和用于连接到电极的布线图案，以及将电极连接到布线图案的布线。

5. 发明授权

US07095559B2 Variable optical delay circuit 失效
标题翻译：可变光延迟电路
公开(公告)号：US07095559B2
公开(公告)日：2006-08-22
申请号：US11086395
申请日：2005-03-23
申请人： Shinji Taniguchi , Tadao Nakazawa, deceased , Yumi Nakazawa, legal representative , Masaharu Doi
发明人： Shinji Taniguchi , Tadao Nakazawa, deceased , Yumi Nakazawa, legal representative , Masaharu Doi
IPC分类号： G02B27/28 , G02F1/03
CPC分类号： G02F1/0136 , G02F2201/20
摘要： In a variable optical delay circuit to be used for compensation for polarization mode dispersion of an optical signal and for other purposes, there are provided a first birefringent member, a second birefringent member and a variable optical rotator interposed between the first birefringent member and the second birefringent member for varying a polarization state of light outputted from the first birefringent member. The birefringent members and the variable optical rotator are disposed on the same optical axis, and the optical axis of each of the birefringent members is set to perpendicularly intersect a traveling direction of inputted light. Therefore, by varying the optical rotation angle of the variable optical rotator, an arbitrary delay quantity corresponding thereto is obtainable in a continuous (analog-like) fashion without undergoing spatial separation between polarization components of the inputted light and varying the intensity (loss) of each of the polarization components.
摘要翻译：在用于光信号的偏振模色散补偿的可变光延迟电路中，为了其他目的，提供了一种第一双折射元件，第二双折射元件和插入第一双折射元件与第二双折射元件之间的可变光旋转器双折射构件，用于改变从第一双折射构件输出的光的偏振状态。双折射元件和可变光旋转器设置在相同的光轴上，并且每个双折射元件的光轴被设定为与输入光的行进方向垂直相交。因此，通过改变可变光旋转器的光旋转角度，可以以连续（类似方式）的方式获得与其相对应的任意延迟量，而不会在输入光的偏振分量之间经历空间分离并改变输入光的强度（损耗）每个偏振分量。

6. 发明授权

US07302121B2 Optical device and drive voltage supply device 失效
标题翻译：光器件和驱动电源
公开(公告)号：US07302121B2
公开(公告)日：2007-11-27
申请号：US11085210
申请日：2005-03-22
申请人： Yumi Nakazawa, legal representative , Hiroshi Miyata , Yukito Tsunoda
发明人： Tadao Nakazawa, deceased
IPC分类号： G02F1/335 , G02F1/295 , G02F1/01 , G02B6/00
CPC分类号： G02F1/0353 , G02F2201/124
摘要： The present invention is directed toward an optical device and a drive voltage supply device, which prevent occurrence of a DC drift and enable stable selection of light of desired wavelength without deteriorating a filtering characteristic. The optical device comprises a substrate having an electrooptical effect; an optical waveguide formed in this substrate; a plurality of comb electrode pairs which are arranged side by side along the optical waveguide, can apply an electric field for said electrooptical effect, and are formed from respective pairs of comb electrodes; and drive voltage supply means capable of supplying a drive voltage to said comb electrode pairs such that the voltage changes with time.
摘要翻译：本发明涉及一种光学装置和驱动电压供应装置，其防止DC漂移的发生，并且能够稳定地选择所需波长的光，而不会降低滤波特性。光学装置包括具有电光效应的基板; 在该衬底中形成的光波导; 沿着光波导并排布置的多个梳状电极对可以对所述电光效应用电场，并由各对梳状电极形成; 以及驱动电压供给装置，其能够向所述梳状电极对提供驱动电压，使得电压随时间而变化。

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