| Literature DB >> 28381016 |
Hyunjun Kim, Randall S Hay, Sean A McDaniel, Gary Cook, Nicholas G Usechak, Augustine M Urbas, Kathleen N Shugart, HeeDong Lee, Ali H Kadhim, Dean P Brown, Benjamin Griffin, Geoff E Fair, Randall G Corns, Santeri A Potticary, Frank K Hopkins, Kent L Averett, David E Zelmon, Triplicane A Parthasarathy, Kristin A Keller.
Abstract
A polycrystalline 1.5% Ho: YAG fiber with a diameter of 31 µm was prepared. Surface roughness from grain boundary grooving was reduced by polishing, which decreased the fiber scattering coefficient from 76 m<sup>-1</sup> to 35 m<sup>-1</sup>. Lasing tests were done on this fiber with a SF57 Schott glass cladding. Lasing was confirmed by spectrum narrowing with threshold pump power lower than 500 mW and a slope efficiency of 7%. To our knowledge, this is the first lasing demonstration from a small diameter polycrystalline ceramic fiber.Entities:
Year: 2017 PMID： 28381016 DOI： 10.1364/OE.25.006725
Source DB: PubMed Journal: Opt Express ISSN： 1094-4087 Impact factor: 3.894