The superposition of a weak continuous wave to a train of ultra-short pulses propagating in an optical single-mode fibre can lead to strong interactions between the two co-propagating signals. These interactions result in considerable modifications of the propagated pulse spectrum. A systematic investigation of the dependence of these modifications on various input signal and fibre parameters is presented. It has been found that cw power levels typically 106times lower than the respective pulse peak power are strong enough to induce pronounced modifications in the output pulse spectrum. © 1994.
Schütz, J., Onishchukov, G. I., Hodel, W., & Weber, H. P. (1994). Experiments on the co-propagation of ultra-short pulses with continuous wave radiation through optical fibres. Optics Communications, 111(3–4), 403–416. https://doi.org/10.1016/0030-4018(94)90481-2