Flexible circuit design for improved laser bias connections to optical subassemblies
    31.
    发明授权
    Flexible circuit design for improved laser bias connections to optical subassemblies 有权
    灵活的电路设计,用于改进与光学组件的激光偏置连接

    公开(公告)号:US07526207B2

    公开(公告)日:2009-04-28

    申请号:US10687107

    申请日:2003-10-16

    CPC classification number: H01S5/0427 H01S5/02248 H05K1/147 H05K1/189

    Abstract: A flexible circuit used in connecting driver circuitry with an optical assembly of a transceiver. The flexible circuit includes one or more first transmission lines that enable modulated signals to be delivered from the driver circuitry to the optical assembly. Electrically connected to the one or more first transmission lines are one or more second transmission lines that connect a bias current source to the optical assembly. By connecting the second transmission lines to the first transmission lines at a distal end of the first transmission lines, the flexible circuit assists in reducing the voltage needed to operate the optical assembly of the transceiver and reduces the bias voltage used to bias the modulated signals.

    Abstract translation: 用于将驱动器电路与收发器的光学组件连接的柔性电路。 柔性电路包括使得调制信号能够从驱动器电路传送到光学组件的一个或多个第一传输线。 电连接到一个或多个第一传输线是将偏置电流源连接到光学组件的一个或多个第二传输线。 通过将第二传输线连接到第一传输线的远端处的第一传输线,柔性电路有助于降低操作收发器的光学组件所需的电压并且减小用于偏置调制信号的偏置电压。

    High efficiency active matching electro-optic transducer driver circuit operable with low supply voltages
    33.
    发明授权
    High efficiency active matching electro-optic transducer driver circuit operable with low supply voltages 有权
    高效率主动匹配电光传感器驱动电路,可在低电源电压下工作

    公开(公告)号:US06965722B1

    公开(公告)日:2005-11-15

    申请号:US11075212

    申请日:2005-03-08

    CPC classification number: G02F1/0327

    Abstract: An optical transmitter and/or a constituent electro-optic transducer driver that performs active matching. The transducer driver performs active matching using a voltage step down through one base-emitter bipolar transistor, followed by a step up approach through the base-emitter of another bipolar transistor, thereby allowing for lower supply voltages. Furthermore, the voltage drop across the source resistor is minimal by using an operation amplifier in a feedback configuration, thereby further encouraging operability with low supply voltages. The electro-optic transducer driver is also beneficial in that it has high AC-coupling efficiency of the modulation current to the electro-optic transducer, may operate at high speeds with reduced jitter.

    Abstract translation: 执行主动匹配的光发射器和/或组成电光换能器驱动器。 传感器驱动器通过一个基极 - 发射极双极晶体管的电压降低来执行有源匹配,然后通过另一个双极晶体管的基极 - 发射极进行升压逼近,从而允许更低的电源电压。 此外,通过使用反馈配置中的运算放大器,源电阻器两端的电压降最小,从而进一步鼓励低电源电压下的可操作性。 电光换能器驱动器也是有益的,因为它具有对电光换能器的调制电流的高AC耦合效率,可以在抖动较小的情况下高速运行。

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