Comparative study of light propagation and single-mode operation in large-mode area fibers designed for 2-μm laser applications Clémence Jollivet Bryce Samson Lasse Leick Lawrence Shah Martin Richardson Axel Schülzgen Downloaded From: http://opticalengineering.spiedigitallibrary.org/ on 09/11/2014 Terms of Use: http://spiedl.org/terms