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    Waveguide type optical external modulator
    31.
    发明授权
    Waveguide type optical external modulator 失效
    波导型光学外部调制器

    公开(公告)号：US5815609A

    公开(公告)日：1998-09-29

    申请号：US706532

    申请日：1996-09-04

    Applicant: Atsushi Toyohara

    Inventor： Atsushi Toyohara

    IPC: G02F1/035 ,  G02F1/225 ,  G02B6/126

    CPC classification number: G02F1/035 ,  G02F1/225 ,  G02F2201/07

    Abstract: A waveguide type optical device includes a lithium niobate substrate, a Ti diffused waveguide formed in the substrate, an electrode formed on the waveguide for applying an electric field to the waveguide, a first buffer layer made of SiO.sub.2 and formed as a film between the electrode and the waveguide, and a second buffer layer made of Si and formed as a film in a region including at least part of the waveguide above the first buffer layer.

    Abstract translation: 波导型光学器件包括铌酸锂衬底，在衬底中形成的Ti扩散波导，在波导上形成用于向波导施加电场的电极，由SiO 2制成的第一缓冲层，并且在电极 和波导，以及由Si制成的第二缓冲层，并且在包括位于第一缓冲层上方的波导的至少一部分的区域中形成为膜。

    Dielectric optical waveguide device
    33.
    发明授权
    Dielectric optical waveguide device 失效
    介质光波导器件

    公开(公告)号：US5598490A

    公开(公告)日：1997-01-28

    申请号：US459459

    申请日：1995-06-02

    Applicant: Hironao Hakogi ,  Takashi Yamane

    Inventor： Hironao Hakogi ,  Takashi Yamane

    IPC: G02B6/12 ,  G02F1/035 ,  G02F1/05 ,  G02F1/21 ,  G02F1/225

    CPC classification number: G02F1/035 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/07

    Abstract: An insulating buffer layer of SiO.sub.2 is formed on a substrate of LiNbO.sub.3 crystal in which optical waveguides are formed, and a semiconducting film of Si is formed on the buffer layer. An insulating diffusion suppressing layer of SiO.sub.2 is formed on the semiconducting film, and a pair of electrodes of Au are located on the diffusion suppressing layer. The formation of silicide by solid-phase diffusion of the electrodes into the semiconducting film can be prevented by the diffusion suppressing layer.

    Abstract translation: 在形成光波导的LiNbO 3晶体的衬底上形成SiO 2绝缘缓冲层，在缓冲层上形成Si半导体膜。 在半导体膜上形成有SiO 2的绝缘扩散抑制层，Au的一对电极位于扩散抑制层上。 通过扩散抑制层可以防止电极通过固相扩散到半导体膜中而形成硅化物。

    Waveguide-type optical device
    34.
    发明授权
    Waveguide-type optical device 失效
    波导型光学器件

    公开(公告)号：US5479552A

    公开(公告)日：1995-12-26

    申请号：US294302

    申请日：1994-08-23

    Applicant: Naoki Kitamura ,  Hiroshi Nishimoto

    Inventor： Naoki Kitamura ,  Hiroshi Nishimoto

    IPC: G02B6/13 ,  G02F1/035 ,  G02F1/225 ,  G02F1/313 ,  G02B6/12

    CPC classification number: G02F1/035 ,  G02F1/225 ,  G02F1/3132 ,  G02F1/3136 ,  G02F1/3137 ,  G02F2201/07 ,  G02F2203/21

    Abstract: In a waveguide-type optical device, two optical waveguides are formed in a substrate of LiNbO.sub.3 or LiTaO.sub.3. On the substrate and the two waveguides, a blocking layer is formed to block a diffusion of Li ions from the substrate. On the blocking layer, a buffer layer made from SiO.sub.2 is formed. Each of the electrodes, from which operation voltages are supplied, covers each coupling part of the two optical waveguides, respectively, via the blocking layer and the buffer layer.

    Abstract translation: 在波导型光学器件中，在LiNbO 3或LiTaO 3的衬底中形成两个光波导。 在衬底和两个波导上，形成阻挡层以阻挡Li离子从衬底的扩散。 在阻挡层上形成由SiO 2制成的缓冲层。 供给工作电压的电极中的每一个分别经由阻挡层和缓冲层覆盖两个光波导的每个耦合部分。

    Dielectric optical waveguide device
    35.
    发明授权
    Dielectric optical waveguide device 失效
    介质光波导器件

    公开(公告)号：US5473711A

    公开(公告)日：1995-12-05

    申请号：US190478

    申请日：1994-02-02

    Applicant: Hironao Hakogi ,  Takashi Yamane

    Inventor： Hironao Hakogi ,  Takashi Yamane

    IPC: G02B6/12 ,  G02F1/035 ,  G02F1/05 ,  G02F1/21 ,  G02F1/225

    CPC classification number: G02F1/035 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/07

    Abstract: An insulating buffer layer of SiO.sub.2 is formed on a substrate of LiNbO.sub.3 crystal in which optical waveguides are formed, and a semiconducting film of Si is formed on the buffer layer. An insulating diffusion suppressing layer of SiO.sub.2 is formed on the semiconducting film, and a pair of electrodes of Au are located on the diffusion suppressing layer. The formation of silicide by solid-phase diffusion of the electrodes into the semiconducting film can be prevented by the diffusion suppressing layer.

    Abstract translation: 在形成光波导的LiNbO 3晶体的衬底上形成SiO 2绝缘缓冲层，在缓冲层上形成Si半导体膜。 在半导体膜上形成有SiO 2的绝缘扩散抑制层，Au的一对电极位于扩散抑制层上。 通过扩散抑制层可以防止电极通过固相扩散到半导体膜中而形成硅化物。

    High-speed external modulator
    36.
    发明授权
    High-speed external modulator 失效
    高速外部调制器

    公开(公告)号：US5339369A

    公开(公告)日：1994-08-16

    申请号：US965191

    申请日：1992-10-23

    Applicant: Samuel Hopfer ,  Yosef Shani

    Inventor： Samuel Hopfer ,  Yosef Shani

    IPC: G02B6/12 ,  G02F1/035 ,  G02F1/225

    CPC classification number: G02B6/12004 ,  G02F1/0356 ,  G02F1/2255 ,  G02F2201/07 ,  G02F2201/127

    Abstract: An improved high-speed external optical modulator, modulated by RF waves, which velocity matches the RF waves with the optical waves is disclosed. The apparatus includes a lithium niobate substrate on which is formed an optical waveguide, electrically floating electrodes, a low dielectric buffer layer and electrodes carrying the modulating RF energy.

    Abstract translation: 公开了一种由RF波调制的改进的高速外部光学调制器，其速度与RF波与光波匹配。 该装置包括铌酸锂基板，其上形成有光波导，电浮动电极，低介电缓冲层和承载调制RF能量的电极。

    Optical switch having a phase change region therein
    38.
    发明授权
    Optical switch having a phase change region therein 失效
    其中具有相变区域的光开关

    公开(公告)号：US5016958A

    公开(公告)日：1991-05-21

    申请号：US307059

    申请日：1989-02-07

    Applicant: Bruce L. Booth

    Inventor： Bruce L. Booth

    IPC: G02B6/12 ,  G02B6/122 ,  G02B6/125 ,  G02B6/28 ,  G02F1/01 ,  G02F1/065 ,  G02F1/313

    CPC classification number: G02B6/1221 ,  G02B6/125 ,  G02B6/2821 ,  G02F1/065 ,  G02F1/3136 ,  G02B2006/12145 ,  G02F1/0147 ,  G02F2201/07 ,  G02F2202/022

    Abstract: An optical switch for switching light from one leg of an optical circuit to another leg is characterized by an arrangement for altering the index of refraction of one of the legs with respect to the other leg. This results in a disparity in light velocity and a change in phase relationship for the light being propagated through the legs. When the legs are brought into a coupling region, there occurs a predetermined transfer of light from one leg to the other, depending upon the magnitude of the alteration in phase relationship between the light propagated in the legs.

    Abstract translation: 用于将来自光路的一条腿的光切换到另一条腿的光学开关的特征在于用于相对于另一条腿改变一条腿的折射率的装置。 这导致光速度的差异以及通过腿传播的光的相位关系的变化。 当腿部进入联接区域时，根据在腿部中传播的光线之间的相位关系变化的大小，发生预定的一次从一条腿到另一条腿的转移。

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