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Summary form only given. Actively and harmonically mode-locked fiber ring lasers have been studied intensively because they can generate high-repetition-rate and transform-limited short pulses. However, their typical cavity length is 10-100 m, and the corresponding order of harmonics is 500-5000 for 10 GHz mode locking, which results in unstability due to the external perturbation and the large supermode noise. Use of an intracavity Fabry-Perot interferometer has been proposed to avoid the supermode noise. In this paper, we demonstrate stable active mode-locking operation at 10 GHz of a 10 mm-long erbium:ytterbium (Er/sup 3+/:Yb/sup 3+/) fiber Fabry-Perot laser (FFPL) in a ring cavity configuration.
Date of Conference: 11-11 May 2001