TIME-VARYING BEAM QUALITY FACTOR AND MODE EVOLUTION IN TEA CO2-LASER PULSES

Authors
ENCINASSANZ F SERNA J MARTINEZ C MARTINEZHERRERO R MEJIAS PM
Citation
F. Encinassanz et al., TIME-VARYING BEAM QUALITY FACTOR AND MODE EVOLUTION IN TEA CO2-LASER PULSES, IEEE journal of quantum electronics, 34(10), 1998, pp. 1835-1838
Citations number
13
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE journal of quantum electronics → ACNP
ISSN journal
00189197
Volume
34
Issue
10
Year of publication
1998
Pages
1835 - 1838
Database
ISI
SICI code
0018-9197(1998)34:10<1835:TBQFAM>2.0.ZU;2-0
Abstract
The time evolution of the transversal modes in a TEA CO2 laser cavity has been investigated from the analysis of the time-varying beam quali ty factor M-2 of the emitted pulses, The experiments reveal a signific ant change in this parameter during the pulse evolution, which can be translated into an evolution of the modes of the laser cavity to reach a nearly stationary behavior. Attention is focused on both the appear ance of a particular mode and the duration of its growing process.