Direct evidence for laser reabsorption as initial cause for self-pulsing in three-level fibre lasers |
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Authors: | Jackson SD |
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Affiliation: | Opt. Fibre Technol. Centre, Sydney Univ., NSW; |
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Abstract: | The temporal characteristics of a standing wave Tm/sup 3+/-doped silica fibre laser are presented. For uni-directional pumping, the output displays the well-known self-pulsation phenomenon, but with bidirectional pumping, a significant increase in the laser stability is observed. A longitudinally uniform population inversion is shown to be of paramount importance to the stability of three-level lasers. |
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