Translator Disclaimer
11 March 2016 Highly efficient Yb-free Er-La-Al doped ultra-low Na large mode area single-trench fiber laser
Author Affiliations +
Abstract
We demonstrate a 60μm core diameter single-trench Yb free Er-La-Al doped fiber having 0.038 ultra-low-NA, using conventional MCVD process in conjunction with solution doping process. Numerical simulations ensure an effective single mode, the effective area varies from 1,820μm2 to 1,960μm2 for different thicknesses of trenches and resonant rings. This fiber has been fabricated with conventional fabrication process, which can dramatically reduce the fabrication cost, hence suitable for mass production. Moreover, all solid structure ensures easy cleaving and splicing. Experimental measurements demonstrate a robust effective single mode operation. Furthermore, this fiber in 4%-4% laser cavity shows a record efficiency of 46% with respect to absorbed power.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Deepak Jain, Shaiful Alam, Yongmin Jung, Pranabesh Barua, Martin N. Velazquez, and Jayanta K. Sahu "Highly efficient Yb-free Er-La-Al doped ultra-low Na large mode area single-trench fiber laser", Proc. SPIE 9728, Fiber Lasers XIII: Technology, Systems, and Applications, 97280W (11 March 2016); https://doi.org/10.1117/12.2211336
PROCEEDINGS
6 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT


Back to Top