Virginia TechXu, YongWang, AnboHeflin, James R.Liu, Z. W.2014-04-162014-04-162007-05-01Xu, Yong; Wang, Anbo; Heflin, James R.; et al., "Proposal and analysis of a silica fiber with large and thermodynamically stable second order nonlinearity," Appl. Phys. Lett. 90, 211110 (2007); http://dx.doi.org/10.1063/1.27404720003-6951http://hdl.handle.net/10919/47404The authors propose a general approach that can produce a silica fiber with large and thermodynamically stable second order nonlinearity. They estimate that it is possible to achieve second harmonic generation efficiency of more than 10% in such a nonlinear fiber with a length of a few hundred microns. By maintaining a high degree of spatial symmetry, the proposed nonlinear fiber can naturally generate polarization entangled photon pairs, a physical object of enormous significance for quantum information technology. (c) 2007 American Institute of Physics.application/pdfenIn Copyright2nd-harmonic generationGlassArticle - Refereedhttp://scitation.aip.org/content/aip/journal/apl/90/21/10.1063/1.2740472https://doi.org/10.1063/1.2740472