Abstract
This paper describes an analytical model of an injection-synchronized single-loop optoelectronic oscillator (OEO) under the influence of radio frequency (RF) interfering signal to study the performance of the system considering only the phase perturbation imposed by the RF injection signal. We derive the phase dynamic equation of the system, which is used to derive compact expression for the lock-range and investigates the influence of interfering signal on the lock-range considering both weak and strong interfering signal strength. We provide formula for the lock-range of the OEO under RF injection-locking in the presence of interfering signal, to reach the steady-state. It is shown that the injection-synchronized OEO under the influence of strong interfering signal exhibits frequency jump phenomena. The experimental results corroborating the theoretical findings are given.
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