Output characterization of a fiber optic parametric oscillator based on multiple four-wave mixing.
The output characteristics of a fiber optic parametric oscillator (FOPO) based on multiple four-wave mixing (multi-FWM) processes are investigated numerically and demonstrated experimentally. The theoretical model of a FOPO based on multi-FWM processes is presented. It is proved that the output signal starts to saturate when the high-order parametric products are generated in the multi-FWM processes of FOPOs. Moreover, a higher output power of the idler (i.e., the first-order parametric product) is achieved. On the other hand, the pump power is proved to be a key factor that significantly influences the output of the FOPO.