Question

Under what conditions does the full nonlinear laser model reduce to the cubic nonlinear laser model?

Answer 1

By constraining the Modal Displacement and Modal Force can cause reduction of a full nonlinear laser model to cubic nonlinear laser model.

Explanation:

The displacement of emitted photons which are nonlinear produces full nonlinear laser (model), but we can condition the modes on the displacement or traveled distance of these photons i,e, Modal Displacement, we can reduce full nonlinear to Cubic nonlinear using 3D constraints.

Similarly, using Modal Forces, which makes laser photons to concise in driven dimensions such as cubic, planar etc.