We consider theoretically a new class of superlattices consisting of alternating layers of quasi-one-dimensional (Q1D) conducting polymers. Although both compositional and doping superlattices are possible, we consider only the doping superlattices in detail here. In particular, we first obtain expressions for the two-dimensional density of electrons and holes in a solitonic as well as a polaronic doping superlattice. Next, we use these quantities to discuss the optical absorption coefficient, α(ω), and the photoconductive response of these Q1D superlattices. Due to the presence of non-linear excitations such as solitons and polarons in doped conducting polymers, the optical absorption arises not only from the usual interband transition, but also from the transitions involving localized levels in the Peierls energy gap. The absorption coefficient is a tunable quantity for the Q1D superlattices, since the effective band gap can be tailored to suit the radiaiton wavelength of interest. Finally, we describe certain means of experimentally measuring α(ω) for photon energies smaller than the Peierls gap and discuss the novel features, including the device applications of Q1D superlattices and related modulated structures.