Numerical modelling of pump absorption in coiled and twisted double-clad fiber: a prospect for tandem pumped fiber laser

GRÁBNER, M., NITHYANANDAN, K., PETERKA, P., KOŠKA, P., HONZÁTKO, P., JASIM, A. Numerical modelling of pump absorption in coiled and twisted double-clad fiber: a prospect for tandem pumped fiber laser. In: KALLI, K, BUNGE, CA, eds. Proceedings of SPIE. Micro-Structured and Specialty Optical Fibres VI. Vol. 11355. BELLINGHAM: SPIE, 2020, č. článku 113550W. ISBN 978-1-5106-3483-1. ISSN 0277-786X. E-ISSN 1996-756X. Available: doi: 10.1117/12.2557230.