Phase Modulation is a modulation technique used in telecommunications and signal processing to encode information in the phase of a carrier wave. In phase modulation, the instantaneous phase of the carrier signal is varied in proportion to the instantaneous amplitude of the modulating signal (the message signal).
In this manuscript, we propose and experimentally demonstrate a dispersion-controlled optoelectronic oscillator with phase only modulator at 18 GHz. The generated microwave signal has a phase noise of −108 dBc/Hz at 10 kHz offset frequency and the integrated timing jitter is calculated to be 16.2 fs (1 kHz to 100 MHz) and 20 fs (1kHz to Nyquist).
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