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A frequency-multiplying radio frequency (RF) source based on the optoelectronic oscillator (OEO) with low phase noise has been proposed and experimentally demonstrated. With the optical carrier suppression process, the frequency quadrupling can be achieved by biasing the intensity modulators at the minimum transmission point simultaneously inside and outside the OEO loop. In the proof-of-concept experiment,...
A MHz-level optical filtering is achieved by frequency conversion pair between optical and radio carriers as well as electronic filtering. Narrow linewidth lasing is then obtained with 20kHz 20-dB linewidth and 65-dB side-mode suppression ratio.
A novel wideband radio frequency phase stabilized downlink transmission and optical domain down-conversion scheme is proposed. The achieved stability of the intermediate frequency is ∼1.8×10−12τ−1/2 after transferring through 30km optical fiber.
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