Linearly polarized all-fiber laser using a short section of highly polarizing microstructured fiber

A linearly polarized all‐fiber erbium laser is presented in this work. The polarization selective element consists on a piece of a single‐mode, polarizing microstructured fiber, which is placed within the laser cavity. The microstructured fiber shows a regular lattice of air‐holes, in which four hol...

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Bibliographic Details
Published in:Laser physics letters 2008-02, Vol.5 (2), p.135-138
Main Authors: Delgado-Pinar, M., Díez, A., Cruz, J.L., Andrés, M.V.
Format: Article
Language:English
Subjects:
microstructured fiber
polarization properties
polarized fiber laser
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Summary:A linearly polarized all‐fiber erbium laser is presented in this work. The polarization selective element consists on a piece of a single‐mode, polarizing microstructured fiber, which is placed within the laser cavity. The microstructured fiber shows a regular lattice of air‐holes, in which four holes next to the core were enlarged. This fiber shows a polarization dependent loss of 16 dB/m around 1550 nm. The laser cavity presents different losses for each polarization and, as a consequence, a highly polarized emission is obtained. The polarization ratio of the emitted power was in excess of 20 dB. (© 2007 by Astro Ltd., Published exclusively by WILEY‐VCH Verlag GmbH & Co. KGaA)
ISSN:1612-2011
1612-202X
DOI:10.1002/lapl.200710100