that the components can be modeled reasonably well with slowly varying envelopes, but of course it has the disadvantage of needing to keep track of a large number of components.

In experiments like those of Sali et.al. [@Sali-MTHM-2004ol; @Sali-KNMHTM-2005pra], the Raman transition is driven near-resonantly by a pair of intense pump pulses about 100fs long; compared to the transition frequency of about 130THz, the spectra of each pump pulse (and hence the generated sidebands) are relatively narrow. This means that a multi-component model is still not unreasonable, even if numerical considerations might demand that the arrays used to store these spectra overlap in frequency space. However, if we were to move to shorter pump pulses, or to a single (much shorter) pump pulse with enough bandwidth to efficiently excite the transition, we would reach the regime where the “teeth” from the spectral comb significantly overlap. At this point, not only would we be forced to move from an SVEA (Slowly Varying Envelope Approximation) solution of the field propagation to a more accurate Generalized Few-cycle Envelope Approximation (GFEA) [@Kinsler-N-2003pra; @Kinsler-FCPP], but the utility of multiple field components becomes questionable. In this regime it can be advantageous to treat the field as 