  We develop a simple and efficient theoretical model to understand the quantum
properties of broadband continuous variable quantum teleportation. We show
that, if stated properly, the problem of multimode teleportation can be
simplified to teleportation of a single effective mode that describes the input
state temporal characteristic. Using that model, we show how the finite
bandwidth of squeezing and external noise in the classical channel affect the
output teleported quantum field. We choose an approach that is especially
relevant for the case of non-Gaussian non-classical quantum states and we
finally back-test our model with recent experimental results.
