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LiNbO3 Pockels cell for Q-switch of Er:YAG laser

✍ Scribed by H. Jelínková; J. Šulc; P. Koranda; M. Němec; M. Čech; M. Jelínek; V. Škoda

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
746 KB
Volume
1
Category
Article
ISSN
1612-2011

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✦ Synopsis

Specially designed LiNbO~3~ electrooptic shutter was
used for Q-switching of Er:YAG laser system. Brewster angles was
employed at the Pockels cell LiNbO~3~ crystal faces to avoid the
insertion of a polarizer into the resonator. By help of the
theoretical analysis based on Jones calculus, the dependency of
Pockels cell radiation transmission on applied voltage was found.
Theoretically and experimentally was proved, that for 25 mm long
LiNbO~3~ crystal the voltage of 1.5 kV is sufficient to avoid
the laser oscillation. With this Pockels cell a stable running
Q-switched Er:YAG laser system was realized. The generated giant
pulse length and energy was 70 ns and 30 mJ, respectively.

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