, Volume 17, Issue 4, pp 385-387
Date: 31 Jul 2010

48.8 km Ultralong Erbium fiber laser in active mode-locking operation

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By the use of installed fibers inside the city we demonstrated a 48.8 km ultralong Erbium-doped fiber laser in modelocking regime with repetition rate varying from 1–10 GHz. The shortest pulse duration of 42 ps at 2.5 GHz was obtained by optimization of intracavity dispersion.