Multiple-μJ mid-IR supercontinuum generation in quadratic nonlinear crystals

Octave-spanning supercontinuum generation in a silicon-rich nitride waveguide

“…The frequency dependence of the effective mode area was modeled as shown in [17]. A constant propagation loss was used, and noise was included as a half-photon per temporal mode in the input, modeling quantum vacuum fluctuations in the Wigner representation [18]. An extended NAEE model was used to include the Raman effect [19], which empirically included the Si-N asymmetric stretching mode centered at 410 cm −1 [20], having a broadband 70 cm −1 linewidth and a relative Raman strength f R 0.2, both typical values for amorphous materials.…”