Second-harmonic generation in UV-poled germanosilicate glass

Takumi Fujiwara, Masahide Takahashi, Akira J. Ikushima

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


Large second-harmonic generation (SHG) in a germanosilicate glass, induced by electrical poling with ultraviolet (UV)-irradiation at 193 nm, is reported. A large SHD coefficient, d, exceeding d22 of LiNbO3 was induced. An anisotropic refractive index is observed, which is a direct evidence of inversion-symmetry breaking. The `UV-excited poling' is one of the promising ways to obtain a novel photonics glass with an appreciable second-order nonlinearity, comparable to that in crystals. Quantitative measurements are still necessary to understand the basic mechanisms of induced nonlinearity.

Original languageEnglish
Pages (from-to)119-122
Number of pages4
JournalIEE Conference Publication
Issue number448 /2
Publication statusPublished - 1997
EventProceedings of the 1997 11th International Conference on Integrated Optics and Optical Fibre Communications and 23rd European Conference on Optical Communications, IOOC-ECOC'97. Part 2 (of 5) -
Duration: 1997 Sept 221997 Sept 25


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