Operation characteristics of diode-pumped, bifocusing compensated two-rod Nd : YAG lasers with diffusive reflectors

Authors
Moon, HJ Lee, S Kim, HS Ko, DK Cha, BH Yi, J Lee, J
Citation
Hj. Moon et al., Operation characteristics of diode-pumped, bifocusing compensated two-rod Nd : YAG lasers with diffusive reflectors, J KOR PHYS, 39(5), 2001, pp. 881-885
Citations number
15
Categorie Soggetti
Physics
Journal title
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
ISSN journal
03744884 → ACNP
Volume
39
Issue
5
Year of publication
2001
Pages
881 - 885
Database
ISI
SICI code
0374-4884(200111)39:5<881:OCODBC>2.0.ZU;2-D
Abstract
The low-mode operation characteristics of a high-power. continuous-wave, tw o-rod Nd:YAG laser pumped by diode lasers were investigated. We used diffus ive reflectors for uniform pumping of 4-mm-diameter rods and a 90 degrees p olarization rotator for bifocusing compensation. For the case of bifocusing compensation. a 190-W C-W output power was obtained with an optical effici ency of 31 %, and the beam quality factor was as low as about 9. The spatia l beam pattern of the output beam was improved when a rotator was used.