Mode selection of slowly opened Q-switch operation

Authors
Chen, J Yau, HF Wang, PJ Pan, EY
Citation
J. Chen et al., Mode selection of slowly opened Q-switch operation, OPT LASER T, 31(7), 1999, pp. 511-516
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS AND LASER TECHNOLOGY
ISSN journal
00303992 → ACNP
Volume
31
Issue
7
Year of publication
1999
Pages
511 - 516
Database
ISI
SICI code
0030-3992(199910)31:7<511:MSOSOQ>2.0.ZU;2-F
Abstract
The beam divergence angle is measured of the Q-switched laser pulse resulti ng from a resonator switched with a Pockels cell which is driven with a slo wly opened circuit using a transformer. The rise time of the output voltage of this transformer type circuit is controllable. After optimization, the beam divergence of the present laser system is decreased by 30% compared wi th the conventional system using a Krytron. A model concerning the mode sel ection in the resonator is proposed. (C) 2000 Elsevier Science Ltd. All rig hts reserved.