Electrode, termination for reduced local heating in an optical device
    11.
    发明授权
    Electrode, termination for reduced local heating in an optical device 有权
    电极,用于在光学装置中减少局部加热的终端

    公开(公告)号:US06654534B1

    公开(公告)日:2003-11-25

    申请号:US09709646

    申请日:2000-11-13

    CPC classification number: G02F1/025 G02F2201/07 G02F2203/21

    Abstract: An optical device, such as an electro-absorption modulator, has a waveguide formed onto a base. Electrodes adjacent the waveguide are used to selectively apply an electric field to the device in order to control the passage of light through the device. To prevent overheating of the device in a region near the point of optical entry, the electrode, which acts as a thermal conduit to dissipate heat from the waveguide is extended over the region. To prevent undesirable electrical contact between the electrode and the region, the normally electrically conducting contact layer between the electrode and the waveguide is removed in that region and replaced by an isolation dielectric.

    Abstract translation: 诸如电吸收调制器的光学器件具有形成在基底上的波导。 与波导相邻的电极用于选择性地将电场施加到装置,以便控制光通过装置的通过。 为了防止在光入口附近的区域中的器件的过热,用作热导管以散发来自波导的热的电极在该区域上延伸。 为了防止电极和区域之间不期望的电接触,在该区域中去除电极和波导之间的正常导电接触层,并由隔离电介质代替。

    Electro-optic modulator with continuously adjustable chirp
    12.
    发明授权
    Electro-optic modulator with continuously adjustable chirp 有权
    具有连续可调啁啾的电光调制器

    公开(公告)号:US06650458B1

    公开(公告)日:2003-11-18

    申请号:US10254594

    申请日:2002-09-26

    CPC classification number: G02F1/225 G02F2201/126 G02F2203/25

    Abstract: An electro-optic modulator having a continuously adjustable chirp is provided. Optical signals input into the electro-optic modulator are divided into portions which are phase modulated in opposite senses, one portion imparted with a positive chirp and the other with a negative chirp. Variable couplers are used to adjust (by way of adjusting their coupling ratios) the amount of power allocated between the optical signals contributing to the positive chirp and the power of signals contributing to the negative chirp so that when the optical signals are combined an optical signal with an adjustable chirp is produced.

    Abstract translation: 提供具有连续可调啁啾的电光调制器。 输入到电光调制器中的光信号被分成相反的相位调制的部分,一部分赋予正的啁啾声,另一部分被赋予负的啁啾声。 可变耦合器用于调整(通过调整它们的耦合比)在有助于正线性调频脉冲的光信号和分配给负啁啾的信号的功率之间分配的功率量,使得当光信号被组合时,光信号 产生可调啁啾声。

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