Abstract
Multi-pass mini-slab (MPMS) Nd:YAG ceramic lasers with a single-mode output
of 38 W is examined corresponding to an optical conversion efficiency of 47%.
Although several characteristics of various ceramic samples are almost similar, such
as transmission, emission and absorption spectra, cross section, and thermal
conductivity, their optical conversion efficiencies can vary from 5% to 40%. We
present a simple technique to on-line measure the influence of scattering loss of
ceramic on laser performance. This particular technique provides convenience and
accuracy in pre-monitoring ceramic sample quality. Experimental results of the MPMS
Nd:YAG ceramic laser agree with evaluations.
© 2011 Chinese Optics Letters
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