Abstract
We report on a tunable ytterbium-doped fiber laser bridging the gap from three-level lasing around 980 nm to true four-level lasing at 1066 nm. Wavelength-locking and -tuning was achieved by an external volume-Bragg grating (VBG). Results are compared with a numerical analysis based on a spectrally resolved rate equation analysis.
© 2011 Optical Society of America
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