The effect of pump parameters on dual-pump fiber optical parametric amplifier

Abstract

The impact of pump parameters on dual-pump (2-P) fiber optical parametric amplifier (FOPA) is investigated. The four-wave model of coupled amplitude equations with fiber losses and pump depletion are solved numerically for the calculation of the parametric gain. Simulation results indicate that an increase in pump powers does not only enhances the parametric gain but also flattening the amplification bandwidth. Moreover, separating the pumps wavelengths further from each other can also improve the flatness of the bandwidth. Besides that, the parametric gain flatness can be improved when the separation between the pump central wavelength and zero-dispersion wavelength is small. In essence, the optimal performance of 2-P FOPA can be achieved when the pump parameters are carefully tailored.

Investigation Of Dual-Pump Fiber Optical Parametric Amplifier Performance Driven by Energy Transfer Between Four-Wave Mixing Process

“…To optimize p   , p   was varied from 11.25nm to 41.25nm with an increment of 10nm, while c  and other parameters were fixed as given in Table 1. Figure 9 tells as p   increases, the reduction of gain at the central wavelength is significantly increased too, but gain at wavelength far from the central wavelength is flattened similar to [14].  − which has an impact on gain performance [21].…”

“…Also, researchers [19] show an improvement of the bandwidth of FOPA using Photonic Crystal Fiber (PCF) if high order dispersion up to 6  was considered. Thus, to determine the impact of higher-order dispersion on 2p-FOPA with HNL-DSF, 6 variations of higherorder dispersion were simulated while other parameters follow Table 1 [14]. As portrayed in Figure 3, when 2  is positive,   is positive, that is why it gives poor gain as shown in Figure 2.…”

“…Othman [14] examined the effect of pump parameters on 2p FOPA using HNL-DSF. The reported that high pump power increase gain and flatness of gain especially far from the central wavelength.…”

Linear pulse propagation with high-order dispersion

“…Though rigorous, it is difficult to acquire physical intuition from these results that leads to simple estimates and deep understanding. High-order dispersion is important in broad band parametric amplification [4,[11][12][13][14][15][16], where dispersion of up to 6th order was considered [15,16]. It is particularly important in supercontinuum generation, where dispersion of up to 7th [17,18] and even 10th order have been considered [3].…”