| Abstract: | The results of a study of the energy, temporal, and spectral characteristics of glass-fiber neodymium laser are presented. It is shown that the short-lived color centers (SCC) lead to generation of regular giant pulses, to a lowering of the superluminescence field intensity, and to an increase of the lasing efficienty in the Q-switching regime. The kinetics of the emission of a neodymium laser containing SCC in the active elements is studied. Problems encountered in obtaining a mode-locking regime in a glass-fiber laser are discussed. It is shown that the lasing spectrum consists of narrow spectral lines randomly distributed in a frequency interval up to 250–300 cm–1.Quantum Radiophysics Division, Lebedev Physics Institute. Translated from Preprint No. 91 of the Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow, 1990. |
