Enhanced performance mode converter
    1.
    发明申请
    Enhanced performance mode converter 有权
    增强性能模式转换器

    公开(公告)号:US20060067634A1

    公开(公告)日:2006-03-30

    申请号:US10951610

    申请日:2004-09-29

    摘要: An optical mode converter comprising a slow wave electrode structure and including Schottky barriers for preventing an accumulation of free carriers in the optical waveguide region of the converter. The Schottky barriers are also used for suppressing higher order modes in the waveguide. Low refractive index insulators are used to allow efficient driving of the device without hindering the impedance or the microwave index of the optical mode converter. Two-photon absorption processes are eliminated through the use of a waveguide semiconductor material having a bandgap of at least twice the photon energy of the light beam propagating through the optical mode converter.

    摘要翻译: 一种光模式转换器,包括慢波电极结构并且包括用于防止转换器的光波导区域中的自由载流子积聚的肖特基势垒。 肖特基势垒也用于抑制波导中的高阶模式。 使用低折射率绝缘体来允许器件的有效驱动,而不会阻碍光学模式转换器的阻抗或微波指数。 通过使用波导半导体材料来消除双光子吸收过程,所述波导半导体材料具有通过光学模式转换器传播的光束的光子能量的至少两倍的带隙。

    Passive method and apparatus for inducing mode conversion
    2.
    发明申请
    Passive method and apparatus for inducing mode conversion 有权
    用于诱导模式转换的被动方法和装置

    公开(公告)号:US20060067603A1

    公开(公告)日:2006-03-30

    申请号:US10950483

    申请日:2004-09-28

    IPC分类号: G02B6/10

    CPC分类号: G02B6/126

    摘要: A waveguide for use in polarization mode converters and polarization modulators using extrinsic strain to prerotate the principal axes and control birefringence is disclosed herein. The invention relates to the orienting of principal propagation axes in an optical waveguide by pre-stressing the waveguide, using an extrinsic stress, to re-orient the principal propagation axes from an unstressed orientation to a substantially ideal orientation. The waveguide is preferably stressed by an extrinsic strain inducer which applies a shear force to the waveguide to induce anisometry in the waveguide structure.

    摘要翻译: 本文公开了用于偏振模式转换器的波导和使用外部应变来预旋转主轴和控制双折射的偏振调制器。 本发明涉及通过使用外在应力预应力波导将主传播轴从无应力取向重新定向到基本上理想的取向来定向光波导中的主传播轴。 优选地,波导通过向波导施加剪切力以在波导结构中引起不等式的外部应变诱导器受到应力。

    Method and apparatus for enhancing the extinction ratio in mode converters
    3.
    发明申请
    Method and apparatus for enhancing the extinction ratio in mode converters 有权
    用于提高模式转换器消光比的方法和装置

    公开(公告)号:US20060067604A1

    公开(公告)日:2006-03-30

    申请号:US10951611

    申请日:2004-09-29

    IPC分类号: G02B6/00

    摘要: A method and apparatus for optimizing a non-ideal, real mode converter to substantially achieve the performance of an ideal mode converter. The method consists of optimizing the input linear polarization to the mode converter to balance the power in the principal modes of the mode converter at the output of the mode converter. This has the effect of maximizing the orthogonality of the output polarization states of the mode converter. The present invention also provides an electro-optical mode converter with means to adjust the orientation of the input polarization state to substantially balance the power in the principal modes at the output of the converter. In the case of an intensity modulator, the output polarization state can also be adjusted to maximize mode conversion and extinction ratio.

    摘要翻译: 一种用于优化非理想的实模式转换器以基本上实现理想模式转换器的性能的方法和装置。 该方法包括优化模式转换器的输入线性极化,以平衡模式转换器输出端的模式转换器主模式的功率。 这具有使模式转换器的输出极化状态的正交性最大化的效果。 本发明还提供了一种电光模式转换器,其具有调整输入偏振状态的取向以在转换器的输出处基本平衡主模式中的功率的装置。 在强度调制器的情况下,还可以调节输出偏振状态以最大化模式转换和消光比。

    Method and apparatus for improving frequency response in mode converters
    4.
    发明申请
    Method and apparatus for improving frequency response in mode converters 有权
    用于改善模式转换器中的频率响应的方法和装置

    公开(公告)号:US20060067599A1

    公开(公告)日:2006-03-30

    申请号:US10953461

    申请日:2004-09-30

    IPC分类号: G02F1/035

    CPC分类号: G02F1/0356 G02F2203/20

    摘要: A semiconductor based electro-optic modulator comprising a capacitively coupled ground allowing for DC biasing of the modulator and a pre-distortion circuit for alleviating RF skin effect and for increasing bandwidth of modulator. Electrical components and functions of modulator partly located on an alumina pane. Reduction of thermally-induced stresses by connecting modulator ground to package ground via alumina pane is also disclosed.

    摘要翻译: 一种基于半导体的电光调制器,其包括允许调制器的DC偏置的电容耦合地,以及用于减轻RF趋肤效应和增加调制器带宽的预失真电路。 调制器的电气部件和功能部分位于氧化铝窗上。 还公开了通过将调制器接地连接到通过氧化铝窗格包装接地来减少热诱导应力。