The possibility of providing long-term storage of a binary sequence of pulses circulating in a fiber loop is discussed. The regeneration of the sequence is achieved by a fiber logic gate based on stimulated Raman scattering. Estimations show that a possible pulse repetition rate of 10<sup>10</sup> Hz for the stimulated-Raman-scattering gate operation can be expected for an average pump power of 1 W. The circulation of the binary sequence of 100-ps pulses was observed during 10 min in a loop 870 m long. It corresponds to more than 10<sup>6</sup> round trips around the loop.
© 1997 Optical Society of America
E. A. Kuzin, J. Sànchez-Mondragon, V. A. Vysloukh, M. A. Meneses, V. I. Belotitskii, and V. V. Spirin, "Long-term storage of a bit stream of pulses by stimulated Raman scattering," J. Opt. Soc. Am. B 14, 1345-1350 (1997)