公开(公告)号：EP2133733B1

公开(公告)日：2017-09-20

申请号：EP08739204.9

申请日：2008-03-28

Applicant: Sumitomo Osaka Cement Co., Ltd.

Inventor： OIKAWA, Satoshi ,  ICHIKAWA, Junichiro ,  KINPARA, Yuhki

IPC: G02F1/035 ,  G02F1/225

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

公开(公告)号：EP2477021A1

公开(公告)日：2012-07-18

申请号：EP09848940.4

申请日：2009-09-07

Applicant: National Institute of Information and Communication Technology ,  Sumitomo Osaka Cement Co., Ltd.

Inventor： KAWANISHI, Tetsuya ,  CHIBA, Akito ,  ICHIKAWA, Junichiro ,  SUDO, Masaaki

IPC: G01M11/00 ,  G02F1/035

CPC classification number: G02B6/29355 ,  G02F1/225 ,  G02F2001/212 ,  G02F2203/69

Abstract: A method for evaluating a characteristic of, especially, each of Mach-Zehnder interferometers (MZIs) of an optical modulator. The method includes a step of measuring the intensity of the output of the optical modulator containing MZIs and a step of evaluating a characteristic of each MZI by using the sideband. The output intensity measuring step is the one of measuring the intensity S n,k of the sideband signal contained in the output light from the optical modulator. The characteristic evaluating step is the one of evaluating a characteristic of the MZI k by using the S n,k .

Abstract translation: 性评价的特性的方法，特别是爱，每个光调制器的马赫 - 曾德干涉仪（MZI）的。 该方法包括：测量所述光学调制器含有MZI的输出，并通过使用边带评估每个MZI的特性的步骤的强度的步骤。 输出强度测量步骤是测量强度S n中，包含在来自所述光调制器的输出光的边带信号的k的一个。 特性判定步骤是通过使用S N，K的评价MZI K的特性的一个。

公开(公告)号：EP2141532A1

公开(公告)日：2010-01-06

申请号：EP08739186.8

申请日：2008-03-28

Applicant: Sumitomo Osaka Cement Co., Ltd.

Inventor： OIKAWA, Satoshi ,  ICHIKAWA, Junichiro ,  KINPARA, Yuhki

IPC: G02F1/035

CPC classification number: G02F1/0356 ,  G02F1/2255 ,  G02F2202/20 ,  G02F2202/42

Abstract: A light control element is provided with a thin board having electro-optical effects; an optical waveguide formed on the thin board; and a control electrode for controlling light that passes through the optical waveguide. The light control element performs speed matching between a microwave signal applied to the control electrode and the light, impedance matching of the microwaves, reduction of a driving voltage and high speed operation. In the control electrode of the light control element, a signal electrode and a grounding electrode are arranged on an upper side of the thin board, and on a lower side of the thin board, a second electrode including the grounding electrode is arranged, through a low refractive index layer entirely formed in the length direction of the signal electrode, with a width wider than that of the signal electrode.

Abstract translation: 光控元件设置有具有电光效应的薄板; 形成在薄板上的光波导; 以及用于控制通过光波导的光的控制电极。 光控制元件执行施加到控制电极的微波信号与光之间的速度匹配，微波的阻抗匹配，降低驱动电压和高速操作。 在光控制元件的控制电极中，信号电极和接地电极设置在薄板的上侧，并且在薄板的下侧，包括接地电极的第二电极通过 低折射率层，其整体形成在信号电极的长度方向上，宽度大于信号电极的宽度。

公开(公告)号：EP2071388A1

公开(公告)日：2009-06-17

申请号：EP07828740.6

申请日：2007-09-28

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： KINPARA, Yuhki ,  ICHIKAWA, Junichiro ,  OIKAWA, Satoshi

IPC: G02F1/035

CPC classification number: G02F1/0356 ,  G02F1/0316 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/127

Abstract: To provide a light control device which is possible to realize a velocity matching between a microwave and an optical wave or an impedance matching of the microwaves even though a signal path having a high impedance of 70 Ω or more, and is possible to reduce a driving voltage.
The light control device having an electro-optical effect includes a thin plate 1 having a thickness of 10 µm or less, an optical waveguide 2 formed in the thin plate, and a controlling electrode for controlling light which passes through the optical waveguide, wherein the controlling electrode includes a first electrode and a second electrode which are disposed so as to interpose the thin plate, wherein the first electrode has a coplanar type electrode which includes at least a signal electrode 4 and a grounding electrode 5 (51), wherein the second electrode includes at least a grounding electrode 54 and is configured so as to apply an electric field to the optical waveguide in corporation with the signal electrode of the first electrode, and wherein the signal electrode of the first electrode includes a branched signal path in which at least one signal path is branched into two or more in the middle of the path.

Abstract translation: 为了提供能够实现微波和光波之间的速度匹配或微波的阻抗匹配的光控制装置，即使具有70Ω以上的高阻抗的信号路径，并且可以减少驱动 电压。 具有电光效应的光控制装置包括厚度为10μm以下的薄板1，形成在薄板中的光波导2，以及用于控制通过光波导的光的控制电极，其中， 控制电极包括设置成插入薄板的第一电极和第二电极，其中第一电极具有至少包括信号电极4和接地电极5（51）的共面型电极，其中第二电极 电极至少包括接地电极54，并且被配置为与第一电极的信号电极一起对光波导施加电场，并且其中第一电极的信号电极包括分支信号路径，其中在 至少一个信号路径在路径的中间分支为两个或更多个。