Abstract
High repetition rate pulsed fiber laser in 1μm is an attractive and novel source for optical transmission systems, since ytterbium-doped fiber (YDF) has the potential to provide broad gain spectrum and high optical conversion efficiency in this regime. Previous works in this area have explored the wavelength range above 1050 nm. In this paper, we focus more on the shorter wavelength band which is closer to the peak of the emission cross section of YDF at around 1030 nm. A 10-GHz harmonically mode-locked all-fiber laser is demonstrated. A pulse train with a pulsewidth of around 13 ps and wavelength tunable from 1023.5 nm to 1053.3 nm is achieved. The side-mode suppression ratio is more than 50 dB without any stabilization techniques.
© 2011 Optical Society of America
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