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    Wide band and low driving voltage optical modulator with an improved dielectric buffer layer
    112.
    发明授权
    Wide band and low driving voltage optical modulator with an improved dielectric buffer layer 失效
    宽带和低驱动电压光调制器，具有改进的介质缓冲层

    公开(公告)号：US6021232A

    公开(公告)日：2000-02-01

    申请号：US854704

    申请日：1997-05-12

    Applicant: Rangaraj Madabhushi

    Inventor： Rangaraj Madabhushi

    IPC: G02F1/035 ,  G02F1/225

    CPC classification number: G02F1/0356 ,  G02F1/2255 ,  G02F2201/07

    Abstract: An optical modulator has a dielectric buffer layer extending over an optical waveguide and extending under an electrode which applies an electric field through the dielectric buffer layer to the optical waveguide for causing the optical waveguide to vary in refractive index profile in linear-proportion to an intensity of the electric field thereby causing a phase shift of a light which is on propagation in the optical waveguide, wherein the dielectric buffer layer varies in thickness whereby an overlap integral of a profile of the electric field and an optical mode field profile at a thinner portion of the dielectric buffer layer is larger than that at a thicker portion of the dielectric buffer layer, and whereby a difference of an effective microwave refractive index from an optical refractive index at the thicker portion is smaller than that at the thinner portion.

    Abstract translation: 光调制器具有在光波导上延伸并在电极下方延伸的介电缓冲层，该电极通过介电缓冲层向光波导施加电场，使光波导与折射率分布呈线性比例变化 的电场，从而引起在光波导中传播的光的相移，其中介质缓冲层的厚度变化，由此电场的轮廓和光模场分布在较薄部分的重叠积分 介电缓冲层的厚度大于介质缓冲层的较厚部分时，有效微波折射率与较厚部分的光折射率的差小于较薄部分的折射率差。

    Optical modulation system
    113.
    发明授权
    Optical modulation system 失效
    光调制系统

    公开(公告)号：US5815610A

    公开(公告)日：1998-09-29

    申请号：US810557

    申请日：1997-03-03

    Applicant: Yuichi Tokano ,  Ryoji Muramatsu ,  Takanobu Tanabe ,  Tsugio Takeda

    Inventor： Yuichi Tokano ,  Ryoji Muramatsu ,  Takanobu Tanabe ,  Tsugio Takeda

    IPC: G02F1/225 ,  G02F1/035

    CPC classification number: G02F1/2255 ,  G02F1/225 ,  G02F2001/212 ,  G02F2201/07 ,  G02F2202/07 ,  G02F2203/20 ,  G02F2203/21

    Abstract: A system comprises a substrate 4, an incident optical waveguide 5 formed on the substrate for receiving a light beam incident thereto, two phase-shift optical waveguides 6 formed on the substrate 4 to be branched from the incident optical waveguide 4 for varying a phase of a transmitted light beam in response to an electric field intensity, an outgoing optical waveguide 7 formed on the substrate 4 to join the phase-shift optical waveguides 6. At least one of the phase-shift optical waveguides 6 has a reversely polarized portion 8 reversely polarized. A light transmission film may be formed at one or a plurality of portions on the phase-shift optical waveguides 6. A buffer layer 14 may be formed on a part on or in the vicinity of the phase-shift optical waveguides 6. A transparent substance film for imparting a stress to one of the phase-shift optical waveguides 6 may be formed on a part or a whole of a portion without the buffer layer 14. A stress imparting member may be formed to impart a stress to a part of one of the phase-shift optical waveguides 6. A light irradiation unit 26 may be formed to irradiate a light beam onto a part or a whole of one of the phase-shift optical waveguides 6.

    Abstract translation: 系统包括基板4，形成在基板上用于接收入射光束的入射光波导5，形成在基板4上的两个相移光波导6，以从入射光波导4分支，以改变相位 响应于电场强度的透射光束，形成在基板4上以连接相移光波导6的出射光波导7.至少一个相移光波导6具有反向偏振部分8 偏振。 透光膜可以在相移光波导6上的一个或多个部分处形成。缓冲层14可以形成在相移光波导6上或附近的部分上。透明物质 可以在没有缓冲层14的部分或全部上形成用于向相移光波导6中的一个施加应力的膜。可以形成应力赋予构件以向其中的一个的一部分施加应力 相移光波导6.可以形成光照射单元26，以将光束照射到一个相移光波导6的一部分或全部上。

    Waveguide-type optical control device
    114.
    发明授权
    Waveguide-type optical control device 失效
    波导型光控制装置

    公开(公告)号：US5661830A

    公开(公告)日：1997-08-26

    申请号：US560680

    申请日：1995-11-20

    Applicant: Hiroshi Nishimoto

    Inventor： Hiroshi Nishimoto

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

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

    Abstract: Disclosed is an optical control device which has a substrate with a pyroelectric effect; optical waveguides formed on the surface of the substrate; a pair of electrodes formed near the optical waveguides; a film layer formed between the substrate and the electrodes; and conductive film which covers near the electrodes and has a conductivity higher than that of the film layer; wherein the conductive film has a plurality of insulating portions between the electrodes.

    Abstract translation: 公开了具有热电效应的基板的光控制装置， 形成在基板表面上的光波导; 在光波导附近形成一对电极; 形成在所述基板和所述电极之间的膜层; 和覆盖在电极附近并具有高于膜层电导率的导电性的导电膜; 其中所述导电膜在所述电极之间具有多个绝缘部分。

    Optical waveguide device
    116.
    发明授权
    Optical waveguide device 失效
    光波导器件

    公开(公告)号：US5404412A

    公开(公告)日：1995-04-04

    申请号：US996684

    申请日：1992-12-24

    Applicant: Minoru Seino ,  Tadao Nakazawa ,  Takashi Yamane ,  Yoshinobu Kubota ,  Masaharu Doi ,  Kunio Sugeta ,  Teruo Kurahashi

    Inventor： Minoru Seino ,  Tadao Nakazawa ,  Takashi Yamane ,  Yoshinobu Kubota ,  Masaharu Doi ,  Kunio Sugeta ,  Teruo Kurahashi

    IPC: G02B6/12 ,  G02F1/01 ,  G02F1/035 ,  G02B5/174

    CPC classification number: G02F1/035 ,  G02F1/0123 ,  G02F2201/07 ,  G02F2203/21

    Abstract: This invention aims at providing an optical waveguide device capable of stably operating for an extended period of time. The optical waveguide device comprises an optical waveguide path formed inside a surface of an electro-optical substrate, a buffer layer formed on the optical waveguide path, and a driving electrode for impressing an electric field so as to change a refractive index of the optical waveguide path, wherein the buffer layer is made of a transparent dielectric or insulator of a mixture between silicon dioxide and an oxide of at least one element selected from the group consisting of the metal elements of the Groups III to VIII, Ib and IIb of the Periodic Table and semiconductor elements other than silicon, or a transparent dielectric or insulator of an oxide between silicon and at least one of the metal elements and semiconductor elements described above.

    Abstract translation: 本发明的目的在于提供能够长时间稳定运行的光波导装置。 光波导装置包括形成在电光基板的表面内的光波导路径，形成在光波导路径上的缓冲层，以及用于施加电场以驱动光波导的折射率的驱动电极 路径，其中所述缓冲层由二氧化硅和至少一种元素的氧化物之间的混合物的透明电介质或绝缘体制成，所述至少一种元素选自元素周期表III-VIII，Ib和IIb族的金属元素 除了硅之外的表格和半导体元件，或硅与至少一个上述金属元件和半导体元件之间的氧化物的透明电介质或绝缘体。

    Optical fiber device
    117.
    发明授权
    Optical fiber device 失效
    光纤设备

    公开(公告)号：US5345545A

    公开(公告)日：1994-09-06

    申请号：US115687

    申请日：1993-09-03

    Applicant: Takafumi Uemiya ,  Naota Uenishi

    Inventor： Takafumi Uemiya ,  Naota Uenishi

    IPC: G02B6/02 ,  G02B6/12 ,  G02B6/122 ,  G02B6/13 ,  G02B6/24 ,  G02F1/37 ,  G02F1/383

    CPC classification number: G02B6/12002 ,  B82Y30/00 ,  G02B6/1221 ,  G02B6/13 ,  G02F1/383 ,  G02B2006/12038 ,  G02B6/241 ,  G02F2201/07

    Abstract: An optical fiber device comprising an optical fiber comprising a core made of an organic crystal and a cladding made of glass, the device generating second harmonics of a laser light that has been launched into the core, the device further comprising a buffer layer on at least one end faces of the optical fiber, and a water barrier layer on the surface of the buffer layer, the buffer layer being such that the organic crystal of the core is not dissolved therein.

    Abstract translation: 一种光纤装置，包括由有机晶体制成的芯和由玻璃制成的包层的光纤，所述器件产生已经发射到芯中的激光的二次谐波，该装置还至少包括缓冲层 光纤的一个端面和缓冲层的表面上的阻水层，缓冲层使得芯的有机晶体不溶解。

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