Input light coupler using a pattern of dielectric contrast distributed in at least two dimensions
    2.
    发明授权
    Input light coupler using a pattern of dielectric contrast distributed in at least two dimensions 有权
    使用至少二维分布的介电对比度图案的输入光耦合器

    公开(公告)号:US06574383B1

    公开(公告)日:2003-06-03

    申请号:US09845811

    申请日:2001-04-30

    IPC分类号: G02B626

    CPC分类号: B82Y20/00 G02B6/1225

    摘要: An input light-coupling device comprising a dielectric layer containing a pattern of dielectric contrast distributed in at least two dimensions. The pattern of dielectric contrast, which may or may not be periodic, is designed to facilitate coupling to the dielectric layer of electromagnetic radiation. The electromagnetic radiation may be propagating within a surrounding medium of lower dielectric constant than that of said dielectric layer, input at directions including normal incidence from which light cannot typically couple to the dielectric layer without the presence of the pattern of dielectric contrast. The input light may constitute an optical signal propagating in an optical fiber or in free space. Light that is in-coupled may be directed in as many directions as dictated by the symmetry of the pattern of dielectric contrast. The dielectric layer may contain output waveguides surrounding the input coupling structure. The light coupling structure may be fabricated in a dielectric layer separated from a high-dielectric substrate by a low-dielectric layer to avoid losses of the input signal to the substrate. A mirror comprising either a reflective material or alternating layers of high and low dielectric material may be disposed between the low-dielectric layer and the substrate to enhance the total input coupling to the dielectric layer containing the input coupling structure.

    摘要翻译: 一种输入光耦合装置,包括包含至少二维分布的介电对比度图案的电介质层。 电介质对比度图案可以是或可以不是周期性的,以便于耦合到电磁辐射的电介质层。 电磁辐射可以在比所述介电层的介电常数低的周围介质中传播,在包括法向入射的方向上输入,光不能典型地耦合到电介质层而不存在介电对比度图案。 输入光可以构成在光纤中或在自由空间中传播的光信号。 耦合的光可以沿着介电对比度图案的对称性所指示的方向指向。 电介质层可以包含围绕输入耦合结构的输出波导。 光耦合结构可以通过低电介质层在与高电介质衬底分离的电介质层中制造,以避免输入到衬底的信号的损失。 包括反射材料或高介电材料和低介电材料的交替层的反射镜可以设置在低介电层和衬底之间,以增强与包含输入耦合结构的介电层的总输入耦合。

    Tunable add/drop filter using side-coupled resonant tunneling
    4.
    发明授权
    Tunable add/drop filter using side-coupled resonant tunneling 失效
    使用侧耦合谐振隧道的可调加/减滤波器

    公开(公告)号:US06424763B1

    公开(公告)日:2002-07-23

    申请号:US09698305

    申请日:2000-10-27

    IPC分类号: G02B642

    摘要: A tunable electromagnetic field frequency filter having an input waveguide which carries a signal including at least one desired frequency, and an output waveguide. A resonator-system is coupled to the input and output waveguides and is operable for the selective transfer of the at least one desired frequency to the output waveguide. The resonator-system supports at least two system modes, and includes at least three reflectors with at least two different reflectivity spectra. At least one of the reflectivity spectra is tuned such that at least two of the system-modes have substantially the same frequency when the transfer occurs substantially.

    摘要翻译: 一种具有输入波导的可调谐电磁场频率滤波器,其输入包括至少一个期望频率的信号和输出波导。 谐振器系统耦合到输入和输出波导,并且可操作用于将至少一个期望频率选择性地传送到输出波导。 谐振器系统支持至少两个系统模式,并且包括具有至少两个不同反射率光谱的至少三个反射器。 至少一个反射光谱被调谐,使得至少两个系统模式在基本上发生转印时具有基本相同的频率。

    Semiconductor-based broadband modulators
    5.
    发明授权
    Semiconductor-based broadband modulators 失效
    基于半导体的宽带调制器

    公开(公告)号:US07680383B1

    公开(公告)日:2010-03-16

    申请号:US12198307

    申请日:2008-08-26

    IPC分类号: G02B6/10 H01L21/00

    摘要: An optical modulator is provided. The optical modulator includes a ridge-shaped active region comprising a plurality of alternating high and low index layers. The ridge-shaped active region is used to confine a selective optical mode for optical modulation. A plurality of oxidized layers positioned so as to confine the selective optical mode in the middle region of the ridge-shaped active region. The oxidized layers enable the optical modulator to withstand high operating voltages both in reverse and forward bias without concern of breakdown or carrier loss.

    摘要翻译: 提供了一种光调制器。 该光学调制器包括一个包括多个交替的高和低折射率层的脊状有源区。 脊形有源区域用于限制用于光学调制的选择性光学模式。 多个氧化层被定位成将选择性光学模式限制在脊状有源区的中间区域。 氧化层使得光学调制器能够在反向和正向偏压下承受高工作电压,而不考虑击穿或载波损耗。

    SEMICONDUCTOR-BASED BROADBAND MODULATORS
    7.
    发明申请
    SEMICONDUCTOR-BASED BROADBAND MODULATORS 失效
    基于半导体的宽带调制器

    公开(公告)号:US20100054656A1

    公开(公告)日:2010-03-04

    申请号:US12198307

    申请日:2008-08-26

    IPC分类号: G02F1/295 G02F1/00

    摘要: An optical modulator is provided. The optical modulator includes a ridge-shaped active region comprising a plurality of alternating high and low index layers. The ridge-shaped active region is used to confine a selective optical mode for optical modulation. A plurality of oxidized layers positioned so as to confine the selective optical mode in the middle region of the ridge-shaped active region. The oxidized layers enable the optical modulator to withstand high operating voltages both in reverse and forward bias without concern of breakdown or carrier loss.

    摘要翻译: 提供了一种光调制器。 该光学调制器包括一个包括多个交替的高和低折射率层的脊状有源区。 脊形有源区域用于限制用于光学调制的选择性光学模式。 多个氧化层被定位成将选择性光学模式限制在脊状有源区的中间区域。 氧化层使得光学调制器能够在反向和正向偏压下承受高工作电压,而不考虑击穿或载波损耗。