Figure 2
From: Decoupling Frequencies, Amplitudes and Phases in Nonlinear Optics
An input spectrum (a) is frequency doubled in a nonlinear crystal (NC) via (b) Time domain Nonlinear Optics (TNO) and via (c) Frequency domain Nonlinear Optics (FNO). (b) The experimental SH spectrum obtained by TNO (blue curve) shows a smooth function without the initial central hole. In FNO (c), the experimentally obtained SH spectrum at the output of the 4 f setup (blue curve) exhibits the same shape as the input spectrum.
