Abstract
In the wavelength-division multiplexing network, high-performance optical wavelength converters are desired. This article will report very stable second harmonic generation by using tellurite glasses, second harmonic generation comparison in glass materials, and time-dependent change of second harmonic generation. We obtained 9 times larger second harmonic generation using TeO2 (60 mol%)–WO3 (30 mol%)–Bi2O3 (10 mol%) than using TeO2 (60 mol%)–WO3 (30 mol%)–PbO (10 mol%) glass. This value corresponds to 4.6 times higher than d11 constant of Y-cut quartz (0.4 pm/V). We have succeeded permanent poling by measurement of time-dependent change of second harmonic generation because there could not be found second harmonic generation intensity change after 6 months of poling at room temperature, and there was no decay of second harmonic generation intensity after 4 h of heating at 100°C.
Published Version
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