We study the temporal and spectral oscillation originated from the interference between the fluorescence (FL) and spontaneous parametric four-wave mixing (SP-FWM) signals. The FL and SP-FWM are generated from different phases of Eu³⁺ or Pr³⁺ doped YPO₄ under the nonlinear SP-FWM process. We discuss and compare the spectral interfering oscillations and self-Rabi oscillations controlled via multiple phase transitions (hexagonal-phase and mixed-phase) of Eu³⁺: YPO₄ and Pr³⁺: YPO₄. The coexistence mechanism of interference and self-oscillations in time domain is also investigated. Further, we discuss the cross-Rabi oscillation in correlated light beams, which evolves from FL signal (having Sinc profile) to SP-FWM (having Cosine profile) in the hybrid signal regime. Based on these results, we have realized wavelength division multiplexing, and temporal amplifier with the temporal interference being controlled by the gate position, and frequency detuning. Our experimental results provide a technique to achieve higher channel equalization ratio about 85%.

我们研究了由荧光（FL）和自发参量四波混合（SP-FWM）信号之间的干扰引起的时间和光谱振荡。FL和SP-FWM是在非线性SP-FWM过程中从Eu ³⁺或Pr ³⁺掺杂的YPO _4的不同相生成的。我们讨论并比较了通过Eu ³⁺：YPO ₄和Pr ³⁺：YPO _4的多个相变（六相和混合相）控制的光谱干扰振荡和自Rabi振荡。还研究了时域干扰和自激振荡的共存机制。此外，我们讨论了相关光束中的交叉拉比振荡，它在混合信号方式下从FL信号（具有Sinc轮廓）演变为SP-FWM（具有余弦轮廓）。基于这些结果，我们实现了波分复用和时间放大器，其中时间干扰由门位置控制，并且频率失谐。我们的实验结果提供了一种实现约85％的更高通道均衡比的技术。