Kazansky, P.G., Dong, L. and Russell, P.St.J.
High second-order nonlinearities in poled silicate fibers
Optics Letters, 19, (10), . (doi:10.1364/OL.19.000701).
Effective quadratic nonlinearities are high as 0.2 pm/V are reported for the first time to our knowledge in poled germanosilicate fibers. This value is ~200 time higher than previously achieved in these fibres. The presence of Ge is found to enhance the efficacy of both thermal (in combination with OH doping) and electron-beam poling in silica.
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