Abstract
In this paper, theoretical model on phase noise in self-heterodyning
optical system for mmW generation is proposed. Phase noise is impacted by
optical path difference between both optical tones and laser source
coherence time, but also by RF generators phase noise. Phase noise
measurements of the mmW signal and RF sources have been realized to discuss
the validity of the model. Based both on the theoretical approach and on the
phase noise characterizations, an error vector magnitude (EVM) model is
developed to quantify the impact of the optical self-heterodyning output
phase noise on up-converted broadband digital signal (ECMA 387
standard).
© 2012 IEEE
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