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    Semiconductor optical switch and array of the same
    1.
    发明公开
    Semiconductor optical switch and array of the same 失效
    Optischer Halbleiterschalter和Schaltermatrise。

    公开(公告)号：EP0380983A2

    公开(公告)日：1990-08-08

    申请号：EP90101120.5

    申请日：1990-01-19

    申请人： HITACHI, LTD.

    发明人： Inoue, Hiroaki ,  Uomi, Kazuhisa ,  Ishida, Koji

    IPC分类号： G02F1/313 ,  H04Q3/52 ,  G02F1/29 ,  G02F1/015

    CPC分类号： G02F1/3138 ,  H01S5/50 ,  H04Q11/0005 ,  H04Q2011/0015 ,  H04Q2011/0041 ,  H04Q2011/0052

    摘要： A semiconductor optical switch and an optical switch array for use in an optical logic circuit, photonic switching, OEIC, etc., wherein a light amplifying means (102) is provided on a bypass waveguide (101) that connects a plurality of optical waveguides (109), thereby enabling improvement of the light crosstalk and the light propagation loss. In particular, ac­cording to the arrangement of the present invention that a light amplifying means (102) is provided in addition to a de­flecting portion (110), no noise component is amplified and therefore the SN ratio is markedly increased.

    摘要翻译： 一种用于光逻辑电路，光子切换，OEIC等的半导体光开关和光开关阵列，其中在连接多个光波导的旁路波导（101）上设置有光放大装置（102） 109），从而能够改善光串扰和光传播损耗。 特别地，根据本发明的装置，除了偏转部分（110）之外还设置有光放大装置（102），不会噪声分量被放大，因此SN比显着增加。

    Optical switch
    2.
    发明公开
    Optical switch 失效

    公开(公告)号：EP0233011A3

    公开(公告)日：1989-07-19

    申请号：EP87300718.1

    申请日：1987-01-28

    申请人： HITACHI, LTD.

    发明人： Tada, Kunio ,  Inoue, Hiroaki ,  Okada, Yoshitaka ,  Matsumura, Hiroyoshi

    IPC分类号： G02F1/015 ,  G02F1/31

    CPC分类号： G02F1/3138

    摘要： An optical switch has a semiconductor waveguide region (2) formed on a substrate (1), with a cladding region (3) on a projection of the waveguide region (2). By controlling the fields applied to electrodes (4, 5, 6) on the substrate (1), the waveguide region (2), and the cladding region (3), the injection and extraction of carriers into and from the waveguide region can be controlled. It is found that the carriers can be removed rapidly through the electrodes (4, 5, 6) and this causes the switch to turn off very rapidly.

    Optical switch
    3.
    发明公开
    Optical switch 失效
    光开关

    公开(公告)号：EP0233011A2

    公开(公告)日：1987-08-19

    申请号：EP87300718.1

    申请日：1987-01-28

    申请人： HITACHI, LTD.

    发明人： Tada, Kunio ,  Inoue, Hiroaki ,  Okada, Yoshitaka ,  Matsumura, Hiroyoshi

    IPC分类号： G02F1/015 ,  G02F1/31

    CPC分类号： G02F1/3138

    摘要： An optical switch has a semiconductor waveguide region (2) formed on a substrate (1), with a cladding region (3) on a projection of the waveguide region (2). By controlling the fields applied to electrodes (4, 5, 6) on the substrate (1), the waveguide region (2), and the cladding region (3), the injection and extraction of carriers into and from the waveguide region can be controlled. It is found that the carriers can be removed rapidly through the electrodes (4, 5, 6) and this causes the switch to turn off very rapidly.

    摘要翻译： 一种光开关具有形成在衬底（1）上的半导体波导区域（2），在波导区域（2）的投影上具有包层区域（3）。 通过控制施加到衬底（1），波导区域（2）和包层区域（3）上的电极（4,5,6）的场，载波注入和从波导区域注入可以是 受控。 发现载流子可以通过电极（4,5,6）迅速去除，这导致开关非常迅速地关断。

    Optical device
    6.
    发明公开
    Optical device 失效
    Optische Einrichtung。

    公开(公告)号：EP0348158A2

    公开(公告)日：1989-12-27

    申请号：EP89306235.6

    申请日：1989-06-20

    申请人： HITACHI, LTD.

    发明人： Inoue, Hiroaki ,  Ogawa, Kensuke ,  Ishida, Koji

    IPC分类号： G02F1/37 ,  G02F1/35

    CPC分类号： B82Y20/00 ,  G02F1/01708 ,  G02F1/3556 ,  G02F1/377

    摘要： An optical device has multilayer films (1) formed by periodically laminating a number of layers each comprising at least two kinds of optical crystal thin films (f n , g n ) having different refractive indices onto a substrate (3). The multilayer films (1) include a semiconductor material having a large non-linear optical coefficient as a composing material and have the artificial optical anisotropy. Since the multilayer films (1) of the optical device have the large non-­linear coefficient and the optical anisotropy, the non-­linear phenomenon such as second-harmonic generation or the like can be efficiently caused.

    摘要翻译： 光学器件具有通过周期性地层叠多个层而形成的多层膜（1），每个层包含至少两种具有不同折射率的光学晶体薄膜（fn，gn）到基板（3）上。 多层膜（1）包括具有大的非线性光学系数作为组成材料并具有人造光学各向异性的半导体材料。 由于光学器件的多层膜（1）具有大的非线性系数和光学各向异性，因此可以有效地引起二次谐波产生等非线性现象。

    Optical device
    7.
    发明公开
    Optical device 失效
    光学器件

    公开(公告)号：EP0348158A3

    公开(公告)日：1991-09-11

    申请号：EP89306235.6

    申请日：1989-06-20

    申请人： HITACHI, LTD.

    发明人： Inoue, Hiroaki ,  Ogawa, Kensuke ,  Ishida, Koji

    IPC分类号： G02F1/37 ,  G02F1/35

    CPC分类号： B82Y20/00 ,  G02F1/01708 ,  G02F1/3556 ,  G02F1/377

    摘要： An optical device has multilayer films (1) formed by periodically laminating a number of layers each comprising at least two kinds of optical crystal thin films (f n , g n ) having different refractive indices onto a substrate (3). The multilayer films (1) include a semiconductor material having a large non-linear optical coefficient as a composing material and have the artificial optical anisotropy. Since the multilayer films (1) of the optical device have the large non-­linear coefficient and the optical anisotropy, the non-­linear phenomenon such as second-harmonic generation or the like can be efficiently caused.

    摘要翻译： 一种光学器件具有多层膜（1），所述多层膜（1）通过周期性地层叠包括具有不同折射率的至少两种光学晶体薄膜（fn，gn）的多个层到衬底（3）上而形成。 多层膜（1）包括具有大的非线性光学系数作为构成材料并具有人造光学各向异性的半导体材料。 由于光学器件的多层膜（1）具有大的非线性系数和光学各向异性，所以可以有效地引起诸如二次谐波产生等的非线性现象。

    Optical device
    10.
    发明公开
    Optical device 失效
    光学装置

    公开(公告)号：EP0275554A3

    公开(公告)日：1990-01-10

    申请号：EP87119308.2

    申请日：1987-12-29

    申请人： HITACHI, LTD.

    发明人： Inoue, Hiroaki ,  Katsuyama, Toshio ,  Matsumura, Hiroyoshi ,  Sakano, Shinji ,  Nakamura, Hitoshi

    IPC分类号： G02F1/01 ,  G02F1/29 ,  G02F1/015

    CPC分类号： B82Y20/00 ,  G02F1/0126 ,  G02F1/01716

    摘要： An optical device having a material (21) exhibi­tive of an optical rectification effect is disclosed. The optical device utilizes direct current polariza­tion which is induced in the material (21) by control light (25). The induction of the direct current polarization in the material by the control light(25) changes the refractive index and absorption spectrum of the material (21). This is based on the so-called electrooptic effect and Franz-Keldysh effect. The present invention provides the optical device accord­ing to which external incident light (23) can be modu­lated at high speed with the control light (25) by utilizing the change of the refractive index or the change of the absorption spectrum.