| 摘要 |
<p>An ultra-fast electrooptic analog-to-digital converter is described. The A/D converter includes an electrooptic modulator that generates a modulated light beam from an incident light beam in response to an applied modulation signal. An optical demultiplexer is positioned to receive the modulated light beam. The optical input of a respective one of a plurality of photodetectors is optically coupled to a respective one of a plurality of demultiplexed modulated light beams. Each of the plurality of photodetectors generates an electrical signal in response to an intensity of the demultiplexed modulated light beam that is coupled to its optica l input. A plurality of charge comparitors compares electrical signals generated in response to the intensities of the demultiplexed modulated light beam to a reference signal. The output of eachof the plurality of charge comparitors generates a digital representation of the incident light beam.</p> |
