Raman spectra of germanosilicate core fibers before and after UV irradiation were investigated. Significant changes of the Raman spectra after irradiation indicate transformation of the glass structure. A possible interpretation of the observed changes is proposed.
© 1997 Optical Society of America
E. M. Dianov, V. G. Plotnichenko, V. V. Koltashev, Yu.N. Pyrkov, N. H. Ky, H. G. Limberger, and R. P. Salathe, "UV-irradiation-induced structural transformation of germanoscilicate glass fiber," Opt. Lett. 22, 1754-1756 (1997)