Abstract
We report a novel all-optical approach to generate a binary phase-coded microwave signal based on a cross-polarization modulation effect in a highly nonlinear fiber. The carrier frequency of the binary phase-coded microwave signal is widely tunable. Moreover, the precise phase shift of the microwave signal is independent of the optical power of the control beam. The proposed approach is theoretically analyzed and experimentally verified. For a proof-of-concept demonstration, the binary phase-coded microwave signals with a carrier frequency of 20 GHz at a coding rate of and with a carrier frequency of 30 GHz at a coding rate of are experimentally generated. The pulse compression capability of the system is also evaluated. The measured and simulated results fit well with each other.
© 2014 Optical Society of America
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