利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

24 条记录 (耗时 0.018 秒)

    Electro-optic devices, including modulators and switches
    1.
    发明授权
    Electro-optic devices, including modulators and switches 失效
    电光设备，包括调制器和开关

    公开(公告)号：US07088874B2

    公开(公告)日：2006-08-08

    申请号：US10671165

    申请日：2003-09-25

    申请人： Valerio Pruneri ,  Michele Belmonte ,  Massimo Orio

    发明人： Valerio Pruneri ,  Michele Belmonte ,  Massimo Orio

    IPC分类号： G02F1/035

    CPC分类号： G02F1/2255 ,  G02F1/3558 ,  G02F2001/212 ,  G02F2201/122 ,  G02F2201/127

    摘要： An electro-optical device capable of modulating the amplitude or phase of an optical output in response to an electrical data or control signal, or of switching it, has reduced frequency-dependence and a better combination of operating voltage and bandwidth. It comprises a body of electro-optically active material, waveguides for passing light through the body, and electrodes for applying an electric field with a frequency in the microwave region to the body, and its transverse geometry is such as to maintain adequate phase velocity matching between optical and microwave frequencies. There is a discontinuity in either the body or at least one of the electrodes such that the direction of the electro-optic effect is reversed for a portion of the length of the device at or near its downstream end.The result of such a discontinuity (in combination with phase velocity matching) is that the device operates in three successive zones: in the upstream zone, desirable phase change is induced for all frequencies in the bandwidth of the device; in the middle zone, desirable phase change is induced for frequencies in the upper part of the bandwidth, but phase change in the lower frequencies becomes excessive; while in the downstream zone, there is no significant phase change in the higher frequencies but the excess change at lower frequencies is reversed.

    摘要翻译： 能够响应于电数据或控制信号调制光输出的幅度或相位或者对其进行切换的电光装置具有降低的频率依赖性和更好的组合工作电压和带宽。 它包括一个电光活性材料体，用于使光通过本体的波导和用于将微波区域中频率的电场施加到身体的电极，并且其横向几何形状保持足够的相速度匹配 在光学和微波频率之间。 在主体或至少一个电极中存在不连续性，使得在其下游端处或其下游端处的器件的长度的一部分，电光效应的方向被反转。

    ELECTRO-OPTICAL DEVICE
    2.
    发明申请
    ELECTRO-OPTICAL DEVICE 有权
    电光器件

    公开(公告)号：US20060198581A1

    公开(公告)日：2006-09-07

    申请号：US11070931

    申请日：2005-03-03

    申请人： Michele Belmonte ,  Valerio Pruneri

    发明人： Michele Belmonte ,  Valerio Pruneri

    IPC分类号： G02F1/035

    CPC分类号： G02F1/0316 ,  G02F1/035

    摘要： Accordingly, a preferred embodiment of the present invention comprises an electro-optical device having an optical waveguide that includes two optical pathways, wherein the optical waveguide is embedded within the substrate. A bias electrode layer is formed on the surface of the substrate. A buffer layer is formed on at least a portion of the bias electrode layer and the surface of the substrate. An RF electrode layer is formed on the buffer layer. A bias-tee electrically couples the bias electrode layer and the RF electrode layer.

    摘要翻译： 因此，本发明的优选实施例包括具有光波导的电光装置，该光波导包括两个光路，其中光波导嵌入基板内。 在基板的表面上形成偏置电极层。 在偏置电极层的至少一部分和基板的表面上形成缓冲层。 在缓冲层上形成RF电极层。 偏置电路将偏置电极层和RF电极层电耦合。

    Electro-optical device
    3.
    发明授权
    Electro-optical device 有权
    电光装置

    公开(公告)号：US07127128B2

    公开(公告)日：2006-10-24

    申请号：US11070931

    申请日：2005-03-03

    申请人： Michele Belmonte ,  Valerio Pruneri

    发明人： Michele Belmonte ,  Valerio Pruneri

    IPC分类号： G02F1/035 ,  G02B6/10

    CPC分类号： G02F1/0316 ,  G02F1/035

    摘要： Accordingly, a preferred embodiment of the present invention comprises an electro-optical device having an optical waveguide that includes two optical pathways, wherein the optical waveguide is embedded within the substrate. A bias electrode layer is formed on the surface of the substrate. A buffer layer is formed on at least a portion of the bias electrode layer and the surface of the substrate. An RF electrode layer is formed on the buffer layer. A bias-tee electrically couples the bias electrode layer and the RF electrode layer.

    摘要翻译： 因此，本发明的优选实施例包括具有光波导的电光装置，该光波导包括两个光路，其中光波导嵌入基板内。 在基板的表面上形成偏置电极层。 在偏置电极层的至少一部分和基板的表面上形成缓冲层。 在缓冲层上形成RF电极层。 偏置电路将偏置电极层和RF电极层电耦合。

    Method and structure of electric field poling of Ti indiffused LiNbO3 substrates without the use of grinding process
    5.
    发明申请
    Method and structure of electric field poling of Ti indiffused LiNbO3 substrates without the use of grinding process 有权
    Ti不扩散LiNbO3基板的电场极化方法和结构，无需使用研磨工艺

    公开(公告)号：US20050281523A1

    公开(公告)日：2005-12-22

    申请号：US10871298

    申请日：2004-06-19

    申请人： Valerio Pruneri ,  Federico Lucchi ,  Paolo Vergani

    发明人： Valerio Pruneri ,  Federico Lucchi ,  Paolo Vergani

    IPC分类号： C30B31/02 ,  G02B6/12 ,  G02B6/134 ,  G02B6/10

    CPC分类号： G02B6/1342 ,  G02B2006/1204

    摘要： A method and structure are disclosed with a simplified approach for fabricating a LiNbO3 wafer with Ti indiffusion wafeguide on the surface that is domain inverted. The method involves indiffusing Ti into LiNbO3 with a predefined temperature and time indiffusion range, a Li enriched and dry oxygen atmosphere, which allows making optical waveguides on the z− crystal face without any significant domain inversion occurring on the z+ face of the crystal. This allows for subsequent poling without the need of any additional removal of the thin domain inverted layer which would otherwise appear on the z+ face. Even in instance where a thin domain inversion layer is formed, it is insufficient thick to prevent poling, eliminating the need for the grinding process.

    摘要翻译： 公开了一种简单的方法，用于在畴反转的表面上制造具有Ti扩散阱导向器的LiNbO 3晶片。 该方法包括以预定的温度和时间扩散范围（Li富集和干氧气氛）将Ti掺杂到LiNbO 3 N 3中，这允许在z-晶面上形成光波导而没有任何明显的畴反转发生在 晶体的z +面。 这允许随后的极化，而不需要任何额外去除否则将出现在z +面上的薄域反转层。 即使在形成薄的域反转层的情况下，也不足以防止极化，从而不需要研磨过程。

    Coplanar integrated optical waveguide electro-optical modulator
    6.
    发明授权
    Coplanar integrated optical waveguide electro-optical modulator 有权
    共平面集成光波导电光调制器

    公开(公告)号：US06760493B2

    公开(公告)日：2004-07-06

    申请号：US10185772

    申请日：2002-06-28

    申请人： Valerio Pruneri ,  Antonino Nespola

    发明人： Valerio Pruneri ,  Antonino Nespola

    IPC分类号： H01S300

    CPC分类号： G02F1/225 ,  G02F2201/126

    摘要： A coplanar integrated optical waveguide electro-optical modulator comprises a substrate (1) of an electro-optic material, at least two optical waveguides (41, 42) integrated in the substrate in correspondence of a surface (71) thereof, and an electrode system (80, 90, 100; 80, 90, 900; 12-15; 120, 130, 140, 150, 160, 170) arranged on the surface for applying a modulating electric field to the waveguides suitable for causing a modulation of a refractive index of the two waveguides in a device modulation region (50). The waveguides are formed, for at least a section thereof (411, 421) in the device modulation region, in respective substrate regions (61, 62) which have electro-optic coefficients of opposite sign along an axis transversal to the waveguide sections, so that a modulating electric field of same direction and orientation in the waveguide sections causes refractive index modulations of opposite sign in the waveguide sections. Chirp-free coplanar waveguide modulators and single-drive double coplanar strip modulators can thus be obtained.

    摘要翻译： 共面的一体化光波导电光调制器包括电光材料的基片（1），至少两个与其表面（71）对应的基片中的光波导（41,42）和电极系 （80,90,100; 80,90,900; 12-15; 120,130,140,​​150,160,170），其布置在所述表面上，用于向所述波导施加调制电场，所述调制电场适于引起折射 器件调制区域（50）中的两个波导的折射率。 在器件调制区域的至少一部分（411,421）上，在沿着与波导部分横向的轴线具有相反符号的电光系数的各个衬底区域（61,62）中形成波导，因此 在波导部分中相同方向和取向的调制电场在波导部分中导致相反符号的折射率调制。 因此可以获得无啁啾共面波导调制器和单驱动双共面条带调制器。