All-optical poling is based on the excitation of nonlinear molecules u
sing dual-frequency beams. The process is optimized at a molecular lev
el when the molecules are resonantly excited. From the point of view o
f frequency conversion applications, this raises the question of devic
e transparency to the frequency-converted output. In order to treat th
is efficiency transparency tradeoff, we recently developed a simple mo
del accounting for all the observable parameters. The model permits a
good prediction of the poling dynamics. Its self-consistency permits t
he description of all the known all-optical poling schemes. In particu
lar, analysis of the parameters of the model permits the identificatio
n of new strategies towards the realization of stable and transparent
phase-matched materials for frequency conversion. Some preliminary exp
erimental results are presented in this respect.