Modal properties of photonic crystal fiber for high-power two micron fiber laser systems

C. Jollivet; T. T. Alkeskjold; L. Leick; P. Kadwani; R. A. Sims; L. Shah; M. C. Richardson; R. Amezcua Correa; A. Schülzgen

doi:10.1117/12.921585

7 May 2012 Modal properties of photonic crystal fiber for high-power two μm fiber laser systems

C. Jollivet, T. T. Alkeskjold, L. Leick, P. Kadwani, R. A. Sims, L. Shah, M. C. Richardson, R. Amezcua Correa, A. Schülzgen

Author Affiliations +

Proceedings Volume 8381, Laser Technology for Defense and Security VIII; 838105 (2012) https://doi.org/10.1117/12.921585
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

Optical fibers that support single mode operation while achieving large mode areas are key elements for scaling up optical powers and pulse energies of fiber lasers. Here we report on a study of the modal properties of a new-generation of polarization maintaining large-mode-area photonic crystal fibers based on the spectrally and spatially resolved (S²) imaging technique. A fiber designed for Tm fiber laser system single mode operation in the 2μm spectral range is demonstrated for coiling diameters smaller than 40cm. At shorter wavelengths in the 1.3μm range, efficient higher order mode suppression requires tide coiling to about 20cm diameters.

Citation Download Citation

C. Jollivet, T. T. Alkeskjold, L. Leick, P. Kadwani, R. A. Sims, L. Shah, M. C. Richardson, R. Amezcua Correa, and A. Schülzgen "Modal properties of photonic crystal fiber for high-power two μm fiber laser systems", Proc. SPIE 8381, Laser Technology for Defense and Security VIII, 838105 (7 May 2012); https://doi.org/10.1117/12.921585

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