A theoretical study of parametric processes near the electron cyclotron resonance region in tokamak plasmas is presented. Parametric dispersion relations, including finite wave length of the driver pump, of principal and harmonic parametric excitations, are given. The problem of primary and secondary decays including their temporal and spatial growth rates is studied. In the nonlinear phase of ...

Abstract Low loss microresonators have revolutionised nonlinear and quantum optics over the past decade. In particular, with second order, chi(2), nonlinearity advantages of broad spectral tunability low power frequency conversion. Recent observations highlighted that parametric conversion in chi(2) is accompanied by stepwise changes signal idler frequencies. Therefore, a better understanding m...