Waveguide formation in niobium tellurite glasses by pico- and femtosecond laser pulses

Authors obtained a temporal and permanent refractive index change in niobium tellurite glasses by using ps- and fs-pulses, resp. A He-Ne laser beam was guided by a line waveguide structure drawn by the fs-pulses, indicating positive refractive index change. It is suggested that the refractive index...

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Bibliographic Details
Published in:Journal of non-crystalline solids 2003-10, Vol.326-327, p.472-475
Main Authors: Tokuda, Y., Saito, M., Takahashi, M., Yamada, K., Watanabe, W., Itoh, K., Yoko, T.
Format: Article
Language:English
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Summary:Authors obtained a temporal and permanent refractive index change in niobium tellurite glasses by using ps- and fs-pulses, resp. A He-Ne laser beam was guided by a line waveguide structure drawn by the fs-pulses, indicating positive refractive index change. It is suggested that the refractive index change by the ps-pulses is due to an increase in the absorption coefficient while that caused by the fs-pulses results from the rearrangement of the glass structure. 4 refs.
ISSN:0022-3093
DOI:10.1016/S0022-3093(03)00455-1