Abstract
The fabrication of few-mode Cr-doped double-clad crystalline fiber (FMCDCF) using a multiple core tuning process is demonstrated for the first time. The FMCDCF exhibited a core diameter of 2 ± 0.6 μm and a V-value of 3.77 to ensure the few-mode characteristics.
© 2011 Optical Society of America
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