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Thermo-optical properties of air-clad photonic crystal fiber lasers in high power operation

: Limpert, J.; Schreiber, T.; Liem, A.; Nolte, S.; Zellmer, H.; Peschel, T.; Guyenot, V.; Tünnermann, A.

Quarles, G.J. ; IEEE Lasers and Electro-Optics Society; Optical Society of America -OSA-, Washington/D.C.:
Advanced solid-state photonics. Proceedings Volume : Oral and poster presentations from the 2004 OSA Topical Meeting on Advanced Solid-State Photonics, held in Santa Fe, New Mexico, February 1 - 4, 2004
Washington, DC: OSA, 2004 (Trends in optics and photonics series 94)
ISBN: 1-557-52771-7
Topical Meeting on Advanced Solid State Photonics (ASSP) <2004, Santa Fe/NM>
Conference Paper
Fraunhofer IOF ()

We report on the investigation of the thermo-optical behavior of air-clad ytterbium-doped large-mode-area photonic crystal fiber lasers. Analytical and numerical models are applied to calculate the heat distribution and induced stresses in a microstructured fiber. The results are compared to conventional double-clad fiber lasers and design guidelines are provided to ensure maximum heat dissipation and scalability to power levels of several kWs.