Spatial and temporal control of squeezed optical signals by interference

I. V. Sokolov, M. E. Alferieff

I. V. Sokolov

I. V. Sokolov

Utsab Khadka, Yanpeng Zhang, Blake Anderson +1 more

Spatial and temporal interferences between four-wave mixing and six-wave mixing signals are observed by using phase-control between these nonlinear optical processes in a four-level atomic system. Atomic coherence is the key to observe such phenomenon.

Algis S. Piskarskas, A. Stabinis, A. Yankauskas

Yanpeng Zhang, Utsab Khadka, Blake Anderson +1 more

Using phase control between four-wave mixing (FWM) and six-wave mixing (SWM) channels in a four-level atomic system, we demonstrate temporal and spatial interferences between these two nonlinear optical processes. Efficient and coexisting FWM and SWM signals are produced in the same electromagnetically induced transparency window via atomic coherence. The temporal interference has a femtosecond time scale corresponding to the optical transition frequency. Such studies of intermixing between different order nonlinear optical processes with a controllable phase delay can have important applications in high-precision measurements, coherence quantum control, and quantum information processing.