公开(公告)号：JP2008250258A

公开(公告)日：2008-10-16

申请号：JP2007095118

申请日：2007-03-30

Applicant: Sumitomo Osaka Cement Co Ltd ,  住友大阪セメント株式会社

Inventor： OIKAWA SATORU ,  ICHIKAWA JUNICHIRO ,  KANEHARA YUUKI ,  YAMANE YUJI

IPC: G02F1/035

CPC classification number: G02F1/0356 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/12 ,  G02F2202/07 ,  G02F2202/20

Abstract: PROBLEM TO BE SOLVED: To provide an optical control device capable of realizing speed matching between microwaves and light waves and impedance matching of the microwave, reducing the drive voltage and capable of achieving impedance matching between a signal line, such as a coaxial cable introducing the microwaves into an optical modulator and a control electrode in the optical modulator.
SOLUTION: In the optical control device having a thin plate having electro-optical effects and 10 μm or smaller thickness, an optical waveguide formed on the thin plate and a control electrode for controlling light passing through the optical waveguide, the control electrode comprises first and second electrodes disposed across the thin plate; the first electrode has a coplanar type electrode comprising at least a signal electrode and a ground electrode; and the second electrode has at least a ground electrode and is configured to apply an electric field to the optical waveguide cooperatively with the signal electrode of the first electrode in a modulation region part and is configured so as to have no electrode, at least at a lower part of the signal electrode of the first electrode in a signal input/output part.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：为了提供能够实现微波和光波之间的速度匹配以及微波的阻抗匹配的光学控制装置，降低驱动电压并且能够实现诸如同轴的信号线之间的阻抗匹配 电缆将微波引入光调制器和光调制器中的控制电极。 解决方案：在具有电光效应和10μm或更小厚度的薄板的光学控制装置中，形成在薄板上的光波导和用于控制通过光波导的光的控制电极，控制电极 包括横跨薄板设置的第一和第二电极; 所述第一电极具有至少包括信号电极和接地电极的共面型电极; 并且所述第二电极具有至少一个接地电极，并且被配置为在调制区域部分中与所述第一电极的信号电极协作地向所述光波导施加电场，并且被配置为不具有至少在 信号输入/输出部分中的第一电极的信号电极的下部。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008250081A

公开(公告)日：2008-10-16

申请号：JP2007092750

申请日：2007-03-30

Applicant: Sumitomo Osaka Cement Co Ltd ,  住友大阪セメント株式会社

Inventor： OIKAWA SATORU ,  ICHIKAWA JUNICHIRO ,  KANEHARA YUUKI

IPC: G02F1/035

CPC classification number: G02F1/0356 ,  G02F1/0316 ,  G02F1/0327 ,  G02F1/2255 ,  G02F2201/12 ,  G02F2202/07

Abstract: PROBLEM TO BE SOLVED: To provide an optical control device of high modulation efficiency, capable of achieving speed matching between microwaves and light waves and impedance matching of the microwaves, and moreover, capable of reducing a driving voltage.
SOLUTION: In the optical control device having a thin plate having electro-optical effects and 10 μm or smaller thickness, an optical waveguide formed on the thin plate, and a control electrode for controlling the light passing through the optical waveguide, the control electrode comprises a first electrode and a second electrode disposed across the thin plate; the first electrode has a coplanar type electrode comprising at least a first signal electrode and a ground electrode; and the second electrode has at least a second signal electrode. Modulation signals whose amplitudes are reversed to each other are input to the first signal electrode of the first electrode and the second signal electrode of the second electrode so as to cooperatively apply an electric field to the optical waveguide.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种高调制效率的光控制装置，能够实现微波与光波之间的速度匹配以及微波的阻抗匹配，而且能够降低驱动电压。 解决方案：在具有电光效应和10μm或更小厚度的薄板的光控制装置中，形成在薄板上的光波导和用于控制通过光波导的光的控制电极， 控制电极包括跨过薄板设置的第一电极和第二电极; 所述第一电极具有至少包括第一信号电极和接地电极的共面型电极; 并且第二电极具有至少第二信号电极。 将幅度相反的调制信号输入到第一电极的第一信号电极和第二电极的第二信号电极，以便协同地向光波导施加电场。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008116865A

公开(公告)日：2008-05-22

申请号：JP2006302327

申请日：2006-11-08

Applicant: National Institute For Materials Science ,  National Institute Of Information & Communication Technology ,  Sumitomo Osaka Cement Co Ltd ,  住友大阪セメント株式会社 ,  独立行政法人情報通信研究機構 ,  独立行政法人物質・材料研究機構

Inventor： ICHIKAWA JUNICHIRO ,  HIKUMA KAORU ,  YAMAMOTO FUTOSHI ,  OIKAWA SATORU ,  MORI SHINGO ,  KURIMURA SUNAO ,  KITAMURA KENJI ,  KAWANISHI TETSUYA ,  TSUCHIYA MASAHIRO ,  IZUTSU MASAYUKI

IPC: G02F1/03

CPC classification number: G02F1/035 ,  G02F2001/212 ,  G02F2201/18 ,  G02F2202/20

Abstract: PROBLEM TO BE SOLVED: To provide a nested modulator wherein circuit disposition of modulation electrodes including signal electrodes is simplified and reduction of driving voltage can be attained.
SOLUTION: In the nested modulator which includes a substrate 20 comprising a material having an electrooptical effect, an optical waveguide formed on the substrate and the modulation electrodes modulating an optical wave guided in the optical waveguide, and wherein the optical waveguide has a main Mach-Zehnder type waveguide 1 and sub Mach-Zehnder type waveguides 2 and 3 provided to two branched waveguides of the main Mach-Zehnder type waveguide and the modulation electrodes are provided to sub branched waveguides of the sub Mach-Zehnder type waveguides, polarization inversion regions 46 and 47 are formed at a part of the sub branched waveguide of each sub Mach-Zehnder type waveguide and the modulation electrodes are formed of the signal electrodes and grounded electrodes and disposed so as to make the signal electrodes 41 and 44 branched from respective single introduction signal electrodes 40 and 43 act on the two sub branched waveguides of the respective sub Mach-Zehnder type waveguides.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种嵌套调制器，其中简化了包括信号电极的调制电极的电路布置，并且可以实现驱动电压的降低。 解决方案：在包括基片20的嵌套式调制器中，包括具有电光效应的材料，形成在基片上的光波导和调制电极，调制在光波导中引导的光波，并且其中光波导具有 主马赫 - 曾德尔型波导1和主马赫 - 曾德尔型波导2和3设置在主马赫 - 曾德尔型波导的两个分支波导和调制电极上，设置在次马赫 - 曾德尔型波导的分支波导中，极化 反向区域46和47形成在每个子马赫 - 曾德尔型波导的子分支波导的一部分处，并且调制电极由信号电极和接地电极形成，并且被布置成使信号电极41和44从 相应的单个引入信号电极40和43作用在相应的子马赫 - 曾德尔型wav的两个子分支波导上 eguides。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007271694A

公开(公告)日：2007-10-18

申请号：JP2006094050

申请日：2006-03-30

Applicant: Sumitomo Osaka Cement Co Ltd ,  住友大阪セメント株式会社

Inventor： SAKUMA MITSURU ,  ICHIKAWA JUNICHIRO

IPC: G02B6/122 ,  G02B6/13

Abstract: PROBLEM TO BE SOLVED: To provide an optical wave guide element and its manufacturing method which can directly connect the block to the surface of a substrate, without degrading the properties of the optical wave guide and is superior in massproductivity, at low cost. SOLUTION: This optical wave guide element has a substrate 1 mounting an optical wave guide 2 on its surface to guide light wave, and a block 4 provided at an edge of this substrate to cover at least some of the optical wave guides. This substrate and the block are directly connected and the surface of the block in contact with the substrate is polished aslant, and is directed toward the end of the substrate. Preferably, the edge of the substrate is a light input or the output surface of the optical wave guide element, and the gradient δ of the polished surface of the substrate to the optical wave guides is 1/1,000 to 1/10,000. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 解决的问题：提供一种可以将块直接连接到基板的表面的光波导元件及其制造方法，而不会降低光波导的性质，并且以低成本具有优异的批量生产性 。 解决方案：该光波导元件具有在其表面上安装光波导2以引导光波的基板1，以及设置在该基板的边缘处以覆盖至少一些光波导的块4。 将该基板和块直接连接，将与基板接触的块的表面抛光抛光，并朝向基板的端部。 优选地，基板的边缘是光波导元件的光输入或输出表面，并且基板的抛光表面与光波导的梯度δ为1 / 1,000至1 / 10,000。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007264522A

公开(公告)日：2007-10-11

申请号：JP2006092824

申请日：2006-03-30

Applicant: Sumitomo Osaka Cement Co Ltd ,  住友大阪セメント株式会社

Inventor： KONDO KATSUTOSHI ,  ICHIKAWA JUNICHIRO

IPC: G02B6/30 ,  G02B6/02 ,  G02B6/12

Abstract: PROBLEM TO BE SOLVED: To prevent unnecessary light from entering a clad part surrounding a core for guiding light. SOLUTION: On the end face 13 of an optical fiber 10, a light shielding layer 14 that absorbs or reflects light of a prescribed wavelength is provided. This light shielding layer 14 is formed in a region excluding the core 11 and its nearby clad 12 part. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了防止不必要的光进入围绕芯的包层部分以引导光。 解决方案：在光纤10的端面13上设置吸收或反射规定波长的光的遮光层14。 该遮光层14形成在除了芯11及其附近的包层12部分之外的区域中。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007256534A

公开(公告)日：2007-10-04

申请号：JP2006079742

申请日：2006-03-22

Applicant: Sumitomo Osaka Cement Co Ltd ,  住友大阪セメント株式会社

Inventor： YAMAMOTO FUTOSHI ,  ICHIKAWA JUNICHIRO

IPC: G02F1/035

Abstract: PROBLEM TO BE SOLVED: To provide an optical control element wherein a control voltage is instantaneously less varied by preventing a bias jump phenomenon, and to provide a manufacturing method thereof.
SOLUTION: The optical control element including a substrate having an electro-optical effect, a piezoelectric effect, or a pyroelectric effect and an electrode for controlling an optical wave propagated in the substrate is installed in an enclosure, and the enclosure is filled with gas having a higher insulating property than dry nitrogen. It is preferable that the gas filled in the enclosure contain arc-extinguishing gas.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种光控制元件，其中控制电压通过防止偏压跳跃现象瞬间变化较小，并提供其制造方法。 解决方案：包括具有电光效应，压电效应或热电效应的基板的光控制元件和用于控制在基板中传播的光波的电极安装在外壳中，并且外壳被填充 具有比干燥氮更高的绝缘性的气体。 填充在外壳中的气体最好包含灭弧气体。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007122038A

公开(公告)日：2007-05-17

申请号：JP2006264544

申请日：2006-09-28

Applicant: Sumitomo Osaka Cement Co Ltd ,  住友大阪セメント株式会社

Inventor： FUJINO TETSUYA ,  YAMAMOTO FUTOSHI ,  JINRIKI TAKASHI ,  SUGAMATA TORU ,  ICHIKAWA JUNICHIRO

IPC: G02F1/03

Abstract: PROBLEM TO BE SOLVED: To provide an optical control device which suppresses growth of abnormal grains in an electrode for control formed by plating even when a buffer layer does not exist or the buffer layer is thin such as a laminated crystalline substrate, has broadband characteristics and in which temperature characteristics and substrate damages are improved. SOLUTION: In the optical control device in which the electrode 11 for control is formed on the crystalline substrate 1 having an electrooptic effect by electrolytic plating, at least one layer of a growth suppression layer 10 of electrode orientation, etc. is provided between the crystalline substrate and the electrode for control. In addition, in the growth suppression layer of the electrode orientation, etc., at least one material selected from Ga, Mo, W, Ta, Si, Ti, Cr, Ni-Cr, nitrides or acid nitrides of these materials is used. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 解决的问题：为了提供一种光控制装置，其抑制即使不存在缓冲层也不形成缓冲层，或层叠结晶性基板等的缓冲层，通过电镀形成的控制用电极中的异常晶粒生长，具有 宽带特性，其中温度特性和基板损伤得到改善。 解决方案：在其中通过电解电镀具有电光效应的晶体衬底1上形成用于控制的电极11的光学控制装置中，提供至少一层电极取向等的生长抑制层10 在晶体衬底和用于控制的电极之间。 此外，在电极取向等的生长抑制层中，使用这些材料中的选自Ga，Mo，W，Ta，Si，Ti，Cr，Ni-Cr，氮化物或酸性氮化物中的至少一种材料。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2007101642A

公开(公告)日：2007-04-19

申请号：JP2005288277

申请日：2005-09-30

Applicant: Sumitomo Osaka Cement Co Ltd ,  住友大阪セメント株式会社

Inventor： ICHIOKA MASAYUKI ,  ICHIKAWA JUNICHIRO

IPC: G02F1/03

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing an optical modulator in which inspection of a substrate and state measurement in and after a polishing stage can accurately be performed when the optical modulator using a substrate made into a thin plate is manufactured and damage to the substrate can be suppressed when the substrate is detached from a polishing tool. SOLUTION: The method for manufacturing the optical modulator having the thin plate which is formed of the substrate 1 having electrooptical effect and ≤50 μm thick, an optical waveguide formed on the top or reverse surface of the thin plate, and modulation electrodes for modulating a light wave propagated in the optical waveguide includes: a reflective film forming stage of forming a reflective film 10 on one surface of the substrate; the polishing stage of polishing the substrate surface where the reflective film is not formed; and an inspection and measurement stage of irradiating the polished surface side with light A in or after the polishing stage, and inspecting the substrate and also measuring the state of the substrate by using reflected light C from the reflective film. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种制造光调制器的方法，其中制造使用制成薄板的基板的光学调制器制造时的基板的检查和在研磨阶段之后和之后的状态测量可以被精确地执行 并且当基板从抛光工具脱离时，可以抑制对基板的损伤。 解决方案：制造具有由具有电光效应且≤50μm厚的基板1形成的薄板的光调制器的方法，形成在薄板的顶表面或反面上的光波导和调制电极 用于调制在光波导中传播的光波包括：反射膜形成阶段，在基片的一个表面上形成反射膜10; 对不形成反射膜的基板表面进行研磨的研磨阶段; 以及在抛光阶段或之后用光A照射抛光表面侧的检查和测量阶段，并且通过使用来自反射膜的反射光C来检查基板并且还测量基板的状态。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006243523A

公开(公告)日：2006-09-14

申请号：JP2005061101

申请日：2005-03-04

Applicant: National Institute For Materials Science ,  Sumitomo Osaka Cement Co Ltd ,  住友大阪セメント株式会社 ,  独立行政法人物質・材料研究機構

Inventor： YAMAMOTO FUTOSHI ,  KONDO KATSUTOSHI ,  ICHIKAWA JUNICHIRO ,  NAKAMURA MASARU ,  KURIMURA SUNAO ,  TAKEGAWA SHUNJI ,  KITAMURA KENJI

IPC: G02F1/03

CPC classification number: G02B6/1342

Abstract: PROBLEM TO BE SOLVED: To provide an optical element of high quality, which suppresses a rise in refractive index of a substrate surface when impurities are thermally diffused in a crystal substrate made of lithium niobate crystal of constant-ratio composition or made by doping the crystal with Mg, or when the crystal substrate is heat-treated in order to recover machining strain, and has superior productivity and optical characteristics, and also to provide its manufacturing method. SOLUTION: The manufacturing method for the optical element, which includes a stage of forming an impurity layer on the lithium niobate single crystal substrate of substantially constant-ratio composition and a diffusion stage of diffusing impurities in the impurity layer in at least a portion of the lithium niobate single crystal substrate of substantially constant-ratio composition, is characterized in that the diffusion stage is carried out in an atmosphere where gas of ≤0°C in dew-point temperature is introduced at a diffusion temperature of 1,000 to 1,200°C. The heat treatment is carried out, preferably, in a diffusion time of 3 to 24 hours. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种高质量的光学元件，当杂质在由恒比率组成的铌酸锂晶体制成的晶体衬底中热扩散时，抑制衬底表面的折射率升高，或由 用Mg掺杂晶体，或者当晶体基板进行热处理以回收加工应变时，并且具有优异的生产率和光学特性，并且还提供其制造方法。 解决方案：光学元件的制造方法，其包括在基本上恒定比例的组成的铌酸锂单晶衬底上形成杂质层的步骤和将杂质层中的杂质扩散至少一个 基本上恒定比例的组合物的铌酸锂单晶衬底的一部分的特征在于，扩散阶段在空气中进行，其中在0℃至1200℃的扩散温度下，在露点温度下加入≤0℃的气体 C。 热处理优选在3〜24小时的扩散时间内进行。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005300905A

公开(公告)日：2005-10-27

申请号：JP2004116842

申请日：2004-04-12

Applicant: Sumitomo Osaka Cement Co Ltd ,  Tokyo Univ Of Agriculture & Technology ,  住友大阪セメント株式会社 ,  国立大学法人東京農工大学

Inventor： KUROKAWA TAKASHI ,  HIKUMA KAORU ,  MORI SHINGO ,  ICHIKAWA JUNICHIRO

IPC: G02B6/12 ,  G02F1/035 ,  G02F2/02

Abstract: PROBLEM TO BE SOLVED: To provide a producing apparatus producing a balanced multiple wavelength optical frequency comb from multiple wavelength light including a plurality of light waves having wavelengths different from each other using an optical waveguide type modulator. SOLUTION: The producing apparatus producing the balanced multiple wavelength optical frequency comb has a substrate, an optical modulator having a waveguide for multiple wavelength light and an electrode for modulation, and light reflection film bodies provided at incident and emitting ends of the optical modulator. In the optical waveguide, a plurality (m) of optical waveguide parts for making a plurality (m) of light waves having wavelengths λ 1 , λ 2 , ..., λ m different from each other incident are formed, these waveguide parts have effective refractive indices substantially equal to each other and optical path lengths L 1 , L 2 , ..., L m thereof are set so that free spectral spaces FSR 1 , FSR 2 , ..., FSR m corresponding to the plurality of light waves which are made incident are made nearly equal to the integer multiple not less than one time of the minimum value thereof. The light reflection film provided at the light incidence end passes through the total light waves and reflects total light reflected from the light emission end, the light reflection film body provided at the light emission end reflects and passes through the total light waves from the light incident end and the optical frequency comb of each light wave is produced in good balance in the optical wave guide part. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 解决的问题：提供一种使用光波导型调制器从包括多个彼此不同波长的光的多波长光产生平衡多波长光频梳的制造装置。 ＆lt; P＆gt;解决方案：制造平衡多波长光频梳的制造装置具有基板，具有多波长光波导的光调制器和用于调制的电极，以及设置在光学器件的入射和发射端的光反射膜体 调制器。 在光波导中，多个（m）个光波导部件用于制造具有波长λ 1 ，λ 2 的多个（m） 形成彼此不同的λ m ，这些波导部分具有基本相等的有效折射率，光路长度L 1 < SB>，...，L m 设定为使得空闲频谱空间FSR 1，FSR 2，...，FSR < 使与入射的多个光波对应的SB> m 几乎等于其最小值的一倍的整数倍。 设置在光入射端的光反射膜通过总光波并反射从发光端反射的总光，设置在发光端的光反射膜体反射并穿过来自光入射的总光波 在光波导部分中平衡地产生每个光波的光频梳。 版权所有（C）2006，JPO＆NCIPI