Comparison of silica-based materials and fibers in side- and end-pumped fiber lasers

Andreas Langner; Gerhard Schötz; Mario Such; Volker Reichel; Stephan Grimm; Martin Leich; Sonja Unger; Johannes Kirchhof; Björn Wedel; Volker Krause; Georg Rehmann

doi:10.1117/12.808218

19 February 2009 Comparison of silica-based materials and fibers in side- and end-pumped fiber lasers

Andreas Langner, Gerhard Schötz, Mario Such, Volker Reichel, Stephan Grimm, Martin Leich, Sonja Unger, Johannes Kirchhof, Björn Wedel, Volker Krause, Georg Rehmann

Author Affiliations +

Proceedings Volume 7195, Fiber Lasers VI: Technology, Systems, and Applications; 71950Q (2009) https://doi.org/10.1117/12.808218
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

We have developed a production process for rare earth doped bulk silica to fulfill the demand of such material for fiber laser applications. In contrast to the standard techniques such as a combination of MCVD (modified chemical vapor deposition) and solution doping, our novel technology is based on a granulate process that enables novel ultra large mode area fiber designs (XLMA) with active core diameters above 100 μm as well as larger batch sizes. Several Yb-doped fibers with two different fiber designs were manufactured and successfully tested in both side- and end-pumped fiber laser setups. Both fiber designs have been compared to similar MCVD fibers. The influence of the material composition on the photodarkening properties has been investigated.

Citation Download Citation

Andreas Langner, Gerhard Schötz, Mario Such, Volker Reichel, Stephan Grimm, Martin Leich, Sonja Unger, Johannes Kirchhof, Björn Wedel, Volker Krause, and Georg Rehmann "Comparison of silica-based materials and fibers in side- and end-pumped fiber lasers", Proc. SPIE 7195, Fiber Lasers VI: Technology, Systems, and Applications, 71950Q (19 February 2009); https://doi.org/10.1117/12.808218

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