Optical splitter/coupler and optical communication system

    公开(公告)号:US07450788B1

    公开(公告)日:2008-11-11

    申请号:US11809657

    申请日:2007-06-01

    CPC classification number: G02B6/2813 G02F1/3136 G02F2001/217 G02F2201/06

    Abstract: An optical splitter/coupler has: a multimode waveguide having an electrooptic effect, and propagating light in a multimode; one incident waveguide propagating light in a single mode, and inputting the light to the multimode waveguide; one pair of emitting waveguides guiding-out, in a single mode, lights which have propagated-in through the multimode waveguide; at least one pair of individual electrodes provided so as to be positioned in vicinities of respective side edges on one surface of the multimode waveguide; and a ground electrode provided on another surface, wherein the multimode waveguide has a length such that 3(n+1) bright spots arise at a central portion and at both side edge portions due to incident light, the individual electrodes are provided at positions corresponding to an upstream-most one pair of the bright spots, and the emitting waveguides are connected to positions corresponding to a downstream-most one pair of the bright spots.

    Tunable wavelength optical transmission module
    133.
    发明申请
    Tunable wavelength optical transmission module 有权
    可调波长光传输模块

    公开(公告)号:US20060078257A1

    公开(公告)日:2006-04-13

    申请号:US11120751

    申请日:2005-05-02

    Abstract: Disclosed herein is a tunable wavelength optical transmission module, the wavelength of which can be tuned over the wide wavelength region of a C band and which can be implemented at a low price and, thus, can be applied to an optical network terminal. Bragg gratings having different grating periods are arranged in parallel or series and the temperatures of Bragg grating regions are then controlled, so that the wavelength of an optical signal can be tuned over a wide wavelength range through the small variation in temperature.

    Abstract translation: 这里公开了一种可调波长光传输模块,其波长可以在C波段的宽波长区域上调谐,并且可以以低价格实现,并且因此可以应用于光网络终端。 具有不同光栅周期的布拉格光栅被平行或串联布置,然后控制布拉格光栅区域的温度,使得光信号的波长可以通过较小的温度变化在宽波长范围内调谐。

    SYSTEM, METHOD, AND COMPUTER PROGRAM PRODUCT FOR STRUCTURED WAVEGUIDE INCLUDING INTRA/INTER CONTACTING REGIONS
    134.
    发明申请
    SYSTEM, METHOD, AND COMPUTER PROGRAM PRODUCT FOR STRUCTURED WAVEGUIDE INCLUDING INTRA/INTER CONTACTING REGIONS 审中-公开
    用于结构化波导的系统,方法和计算机程序产品,包括内部/内部联系区域

    公开(公告)号:US20050213864A1

    公开(公告)日:2005-09-29

    申请号:US10906260

    申请日:2005-02-11

    Abstract: Disclosed is an apparatus and method including a semiconductor substrate including a waveguide having a guiding region and one or more bounding regions coupled to the guiding region; a first PN junction disposed in the substrate and coupled to one or more of the one or more bounding regions; and dopant atoms disposed within the semiconductor substrate at the PN junction. An alternate embodiment includes a memory device, having a waveguide having a guiding region for propagating a radiation signal; an influencer, coupled to the waveguide, for controlling a characteristic of the radiation signal propagating in the waveguide between a first mode and a second mode; and a latching layer, coupled to the guiding region and responsive to the influencer, for retaining the characteristic of the radiation signal for a memory cycle.

    Abstract translation: 公开了一种包括半导体衬底的装置和方法,所述半导体衬底包括具有引导区域和耦合到所述引导区域的一个或多个界限区域的波导; 第一PN结,其布置在所述衬底中并且耦合到所述一个或多个边界区域中的一个或多个; 以及在PN结处设置在半导体衬底内的掺杂剂原子。 替代实施例包括存储器件,其具有波导,该波导具有用于传播辐射信号的引导区域; 耦合到波导的影响器,用于控制在第一模式和第二模式之间在波导中传播的辐射信号的特性; 以及锁存层,耦合到引导区域并且响应于影响者,用于保持用于存储器周期的辐射信号的特性。

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