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Proceedings Paper

Monolithic narrow linewidth polarization-maintaining thulium fiber laser using femtosecond laser written fiber Bragg gratings
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Paper Abstract

We have demonstrated an all-fiber thulium laser system that, without any intracavity polarizing elements or freespace components, yielded a stable polarization extinction ratio (PER) of ~18 dB. The system is based on singlemode polarization-maintaining silica fiber and its cavity is formed from each a high and low reflectivity femtosecond laser written fiber Bragg grating resonant at 2054 nm. The output of the fiber is not only highly polarized, but maintains a narrow linewidth of 78 pm at its maximum output power of 5.24 W. The high PER without any polarizing elements in the cavity is of great interest and makes the systems useful for spectral beam combining and other applications which require polarization dependent optical elements.

Paper Details

Date Published: 25 May 2011
PDF: 6 pages
Proc. SPIE 8039, Laser Technology for Defense and Security VII, 80390H (25 May 2011); doi: 10.1117/12.885989
Show Author Affiliations
Christina C. C. Willis, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Joshua D. Bradford, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
R. Andrew Sims, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Lawrence Shah, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Martin Richardson, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Jens Thomas, Friedrich-Schiller-Univ. Jena (Germany)
Ria G. Becker, Friedrich-Schiller-Univ. Jena (Germany)
Christian Voigtländer, Friedrich-Schiller-Univ. Jena (Germany)
Andreas Tünnermann, Friedrich-Schiller-Univ. Jena (Germany)
Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)
Stefan Nolte, Friedrich-Schiller-Univ. Jena (Germany)
Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)


Published in SPIE Proceedings Vol. 8039:
Laser Technology for Defense and Security VII
Mark Dubinskii; Stephen G. Post, Editor(s)

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