A ND-YAG LASER WITH A FLAT-TOP BEAM PROFILE AND CONSTANT DIVERGENCE

Authors
YEN WC HUANG CT LIU HP LEE LP
Citation
Wc. Yen et al., A ND-YAG LASER WITH A FLAT-TOP BEAM PROFILE AND CONSTANT DIVERGENCE, Optics and Laser Technology, 29(2), 1997, pp. 57-61
Citations number
13
Categorie Soggetti
Optics,"Physics, Applied
Journal title
Optics and Laser Technology → ACNP
ISSN journal
00303992
Volume
29
Issue
2
Year of publication
1997
Pages
57 - 61
Database
ISI
SICI code
0030-3992(1997)29:2<57:ANLWAF>2.0.ZU;2-P
Abstract
An active resonator designed especially for Nd:YAG lasers is proposed. The expected performance of this resonator is the generation of a las er beam with a flat-topped distribution and a divergence invariant und er the thermal lensing effect, such that it could be applied to surfac e treatment without special optical or mechanical elements. The beam q uality and efficiency of such a resonator are presented and discussed in comparison with a parallel-plane resonator as adopted by most indus trial Nd:YAG lasers. (C) 1997 Elsevier Science Ltd.