Abstract

The width of the depletion region in fused-silica samples thermally poled during various periods of time is investigated experimentally with four previously reported characterization techniques in an attempt to unify their findings. Although all measurements give a similar width of the depletion region, it is shown that the determination of the profile of χ(2) is also required for a good estimate of the nonlinearity induced by poling.

© 2005 Optical Society of America

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