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Chip-Sized Digital Optical Synthesizer to Aim for Routine Terabit-per-second CommunicationsWashington DC (SPX) Apr 30, 2014 In the 1940s, researchers learned how to precisely control the frequency of microwaves, which enabled radio transmission to transition from relatively low-fidelity amplitude modulation (AM) to high-fidelity frequency modulation (FM). This accomplishment, called microwave frequency synthesis, brought about many advanced technologies now critical to the military, such as wireless communications, radar, electronic warfare, atomic sensors and precise timing. Today, optical communications employ techni ... read more |
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