Abstract
We demonstrate a fundamentally mode-locked Yb-fiber laser with 3 GHz repetition rate and pulse duration. The laser incorporates two enabling technologies: a 1 cm heavily Yb-doped phosphate glass fiber as the gain medium and a high-dispersion () output coupler to manage cavity dispersion. The oscillator self-starts and generates up to 53 mW average power.
© 2012 Optical Society of America
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