US Army Research Laboratory Directed Energy Internship Program 2014 Final Report

Report No. ARL-TN-0711
Authors: Jeffrey O White
Date/Pages: November 2015; 38 pages
Abstract: This technical note is the final report for the 2014 Directed Energy Internship program at the US Army Research Laboratory. Six interns were mentored by 4 government employees. The projects included 1) a comparison of traditional erbium (Er):silica (SiO2) optical fiber to designs using Er: alumina (Al2O3) nanoparticles, 2) chirped seed amplification in a 1.6-kW ytterbium (Yb) fiber amplifier, 3) custom components for a 100-W Er amplifier, and 4) performance of coherent beam combining and power usage in fiber laser arrays with high fill-factor output. Three reports written by the interns are included as Appendices A through C. A report on the third project was published separately as ARL-TN-0672.
Distribution: Approved for public release
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Last Update / Reviewed: November 1, 2015