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Mid-infrared Q-switched Er:YAG laser for medical applications

✍ Scribed by M. Skorczakowski; J. Swiderski; W. Pichola; P. Nyga; A. Zajac; M. Maciejewska; L. Galecki; J. Kasprzak; S. Gross; A. Heinrich; T. Bragagna

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
287 KB
Volume
7
Category
Article
ISSN
1612-2011

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✦ Synopsis

The 2.94 ΞΌm Er:YAG laser Q-switched mechanically by a rotating mirror was developed. The laser generated pulses of 30 mJ energy and duration below 290 ns, which corresponds to over 100 kW peak power. It operated at the repetition rate of up to 25 Hz. To our knowledge it is the most powerful erbium laser operating at so high repetition rate. The developed laser can be successfully applied in medicine -e.g. in microsurgery of soft biological tissues. (a) (b) (c) (d)

Laser beam interaction with a gelatin sample

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LiNbO3 Pockels cell for Q-switch of Er:Y
LiNbO3 Pockels cell for Q-switch of Er:YAG laser
✍ H. JelΓ­nkovΓ‘; J. Ε ulc; P. Koranda; M. NΔ›mec; M. Čech; M. JelΓ­nek; V. Ε koda πŸ“‚ Article πŸ“… 2004 πŸ› John Wiley and Sons 🌐 English βš– 746 KB

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 depende