Experimental study of a symmetrically-pumped distributed feed-back Erbium-doped fiber laser with a tunable phase shift

We report an experimental study of a symmetricallypumped distributed feed‐back (DFB) Erbium‐doped fiber laser (EFL) with a tunable phase shift induced in the center of the laser cavity. The tunable phase shift is produced using a magnetostrictive transducer. We demonstrate that lasing is observed in...

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Bibliographic Details
Published in:Laser physics letters 2008-05, Vol.5 (5), p.357-360
Main Authors: Barmenkov, Yu.O., Kir'yanov, A.V., Pérez-Millán, P., Cruz, J.L., Andrés, M.V.
Format: Article
Language:English
Subjects:
distributed feed-back
Erbium-doped fiber laser
Erbium‐doped fiber laser
distributed feed‐back
tunable phase shift
tunable phase shift
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Summary:We report an experimental study of a symmetricallypumped distributed feed‐back (DFB) Erbium‐doped fiber laser (EFL) with a tunable phase shift induced in the center of the laser cavity. The tunable phase shift is produced using a magnetostrictive transducer. We demonstrate that lasing is observed in our experimental arrangement at any value of the phase shift that is owing to a noticeable birefringence induced by the latter. The laser wavelength is shown to periodically change with increasing pump power due to the fiber heating, which stems from the Stokes loss, the excited state absorption and Auger up‐conversion in Erbium, and high thermal expansion coefficient of the magnetostrictive transducer. (© 2008 by Astro Ltd., Published exclusively by WILEY‐VCH Verlag GmbH & Co. KGaA)
ISSN:1612-2011
1612-202X
DOI:10.1002/lapl.200710120