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    Mach-Zehnder optical-waveguide interferometer
    2.
    发明公开
    Mach-Zehnder optical-waveguide interferometer 审中-公开
    Mach-Zehnder'sches干涉仪，beruhend auf einem optischen Wellenleiter

    公开(公告)号：EP2639631A1

    公开(公告)日：2013-09-18

    申请号：EP13171824.9

    申请日：2011-03-23

    申请人： Fujitsu Optical Components Limited

    发明人： Sugiyama, Masaki

    IPC分类号： G02F1/035 ,  G02F1/313 ,  G02B6/122 ,  G02B6/125

    CPC分类号： G02F1/035 ,  G02F1/2255 ,  G02F1/3132 ,  G02F1/3137

    摘要： A Mach-Zehnder optical modulator (100) formed in a substrate ((10) and comprising a curved waveguide (11), which has a first end and a second end, and a branch portion (12) that is coupled to the second end of the curved waveguide (11), wherein the curved waveguide (11) comprises a low refraction index portion (18) having an effective refraction index lower than that of the rest of the curved waveguide (11), the low refraction index portion (18) being provided from an intermediate part of the curved waveguide (11) between the first end and the second end.

    摘要翻译： 形成在基板（10）中并且包括弯曲波导（11）的马赫 - 策德尔光调制器（100），其具有第一端和第二端，以及分支部分（12），其耦合到第二端 ，其中所述弯曲波导（11）包括具有比所述弯曲波导（11）的其余部分的有效折射率低的低折射率部分（18），所述低折射率部分（18） ）从第一端和第二端之间的弯曲波导（11）的中间部分提供。

    LOW SWITCHING VOLTAGE, FAST TIME RESPONSE DIGITAL OPTICAL SWITCH
    3.
    发明公开
    LOW SWITCHING VOLTAGE, FAST TIME RESPONSE DIGITAL OPTICAL SWITCH 有权
    具有低开关电压和更快的响应数字光开关

    公开(公告)号：EP2183643A1

    公开(公告)日：2010-05-12

    申请号：EP07827640.9

    申请日：2007-08-14

    申请人： Selex Sistemi Integrati S.P.A.

    发明人： PIERNO, Luigi ,  DISPENZA, Massimiliano

    IPC分类号： G02F1/313 ,  G02F1/03

    CPC分类号： G02F1/3137 ,  G02F1/0316 ,  G02F2201/07 ,  G02F2203/21

    摘要： Disclosed herein is a digital electro-optical switch (1) comprising: - an electro-optical substrate (3); - a Y-shaped optical waveguide (2) formed in the substrate (3) and including an input branch (4) configured to be connected to an input optical waveguide, and two output branches (5) configured to be connected to respective output optical waveguides; and - electrically conductive electrodes (6, 7) formed on the substrate (3) and including an inner electrode (7) arranged between the output branches (5), substantially at a branching area of the optical waveguide (2), and two outer electrodes (6) arranged outside the output branches (5), on opposite sides of the inner electrode (7), the outer electrodes (6) being electrically operable to make the electro-optical switch (1) operative between a first switching state wherein transmission of optical energy is enhanced between the input branch (4) and a first one of the output branches (5), and substantially inhibited in a second one of the output branches (5), and a second switching state wherein transmission of optical energy is enhanced between the input branch (4) and the second output branch (5), and substantially inhibited in the first output branch (5); and - an optically transparent, electrically conductive film (9) arranged between each electrode (6, 7) and the substrate (3).

    OPTICAL DEVICE, OPTICAL DEVICE MANUFACTURING METHOD, AND OPTICAL INTEGRATED DEVICE
    8.
    发明公开
    OPTICAL DEVICE, OPTICAL DEVICE MANUFACTURING METHOD, AND OPTICAL INTEGRATED DEVICE 有权
    光学组件，方法用于光学元件和集成的光学元件

    公开(公告)号：EP1662284A1

    公开(公告)日：2006-05-31

    申请号：EP04733957.7

    申请日：2004-05-19

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： HAMADA, Hidenobu

    IPC分类号： G02B6/28 ,  G02B6/12 ,  G02F1/313

    CPC分类号： G02F1/3136 ,  G02B6/138 ,  G02B6/2813 ,  G02B6/30 ,  G02B6/4214 ,  G02B2006/12095 ,  G02F1/3137 ,  G02F2001/217

    摘要： In a multi-mode interference waveguide (MMI) of a sheet shape spreading in the length direction and the width direction, the length of the multi-mode interference waveguide is set to such a length that the unique mode interferes in the length direction, thereby reducing the coupling loss when inputting/outputting the signallight. The multi-mode interference waveguide has a maximum refraction factor portion in the thickness direction and has such a refraction factor distribution that the refraction factor is reduced as departing from the maximum refraction factor portion. Thus, it is possible to suppress mode dispersion in the thickness direction of the multi-mode interference waveguide and obtain a high transmission rate in the order of 10 Gb/s.

    摘要翻译： 以片材形状在长度方向和宽度方向扩展的多模干涉（MMI），所述多模干涉波导的长度被设置为搜索的长度做的唯一模式的长度方向波导干涉，从而 减少了耦合损耗。当输入/输出铃声信号光。 所述多模干涉波导具有在厚度方向上的最大折射因子部分和审查折射系数分布做的折射因子被减小从最大折射因子部分的情况。 因此，能够抑制模色散在多模干涉波导的厚度方向，并获得在10 Gb / s的量级的高传输速率。

    Methods and devices to minimize the optical loss when multiplexing optical signals from a plurality of tunable laser sources
    9.
    发明公开
    Methods and devices to minimize the optical loss when multiplexing optical signals from a plurality of tunable laser sources 审中-公开
    的方法和设备，以最小化的可调激光源复用的光损耗

    公开(公告)号：EP1603261A1

    公开(公告)日：2005-12-07

    申请号：EP05016705.5

    申请日：2002-11-26

    申请人： E.I. du Pont de Nemours and Company

    发明人： Daou, Fadi ,  El-Dada, Louay

    IPC分类号： H04J14/02 ,  H04B10/155 ,  G02F1/313

    CPC分类号： G02F1/3137 ,  G02B6/12007 ,  G02F1/0147 ,  H04J14/02

    摘要： Methods of minimizing optical loss when combining signals from a plurality of laser sources. The method involves disposing a 2 × 1 Y-branch optical waveguide on a substrate, wherein the Y-branch consists of two converging input branches and a single output branch, each input branch being provided with an independent heating means proximate thereto. The method further comprises inputting an optical signal to one of the input branches and simultaneously inputting a second optical signal to the other of the branches, actuating one or both of the heaters, adjusting the degree of heating in each of the heaters in order to adjust the relative intensity of the introduced optical signals to achieve a desired ratio, and directing the resetting output signal into at least one optical fiber.

    摘要翻译： 最小化光损失。当从激光源的多元组合信号的方法。 该方法涉及在基片上设置2×1 Y分支光波导，worin该Y分支两个会聚的分支输入的besteht和单个输出分支，每个输入分支被在独立的加热设置有于此接近。 该方法还包括输入关于光信号到输入分支中的一个，并且同时输入的第二光信号中的另一个分支中，致动一个或两个加热器，调节加热程度在每个加热器，以调节 介绍了光信号的相对强度，以实现所希望的比例，并且重置输出信号引导到至少一个光纤。