Abstract
A compact single-frequency fiber laser based on a high-power semiconductor optical amplifier (SOA) has been proposed and demonstrated with over wavelength tuning range. The inhomogeneous gain-broadening feature of the SOA and the unpumped ytterbium-doped fiber-based saturable absorber contribute to the single longitudinal mode lasing of the fiber laser. The maximum output power can be obtained with the optical signal to noise ratio larger than . Stable single-frequency operation can be maintained more than with negligible power fluctuations and low relative intensity noise.
© 2009 Optical Society of America
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