Opt Lett. 1989 Jan 15;14(2):125-7. doi: 10.1364/ol.14.000125.
Optics letters
R Wolfson, K J Druhl
PMID: 19749844 DOI: 10.1364/ol.14.000125
An internal phase-shift mechanism can lead to the amplification of Raman solitons even in the presence of coherence decay and detuning. We study here the case of a Raman medium with strong ac Stark shift by using both analytical and numerical methods. Our results also suggest the possibility of propagating stable transient Raman solitons in optical fibers.