| 摘要 |
Modulator driver for driving an electro-optical modulator in a high-speed optical communications system. In accordance with aspects of the present invention, a modulator driver is presented comprising an active signal splitter providing a first pair and a second pair of differential output signals, each pair of differential output signals input to a separate variable delay circuit, each variable delay circuit in turn feeding an output buffer, whereby one signal from each output buffer is used as an output drive signal, and the other signal from each output buffer is input to a phase processor which is used to actively control said variable delay circuits, whereby the circuit architecture is compatible with compact, monolithic fabrication requiring a minimal amount of external components for operation. Other methods and apparatus are presented.
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