EXPERIMENTAL INVESTIGATION OF THE SPATIAL STRUCTURE OF THE BEAM PROFILE OF A LASER WITH A SAGNAC INTERFEROMETER

Authors
GRABOVSKII VV PROKHORENKO VI YATSKIV DY
Citation
Vv. Grabovskii et al., EXPERIMENTAL INVESTIGATION OF THE SPATIAL STRUCTURE OF THE BEAM PROFILE OF A LASER WITH A SAGNAC INTERFEROMETER, Kvantovaa elektronika, 23(4), 1996, pp. 335-337
Citations number
12
Categorie Soggetti
Physics, Applied","Engineering, Eletrical & Electronic
Journal title
Kvantovaa elektronika → ACNP
ISSN journal
03687147
Volume
23
Issue
4
Year of publication
1996
Pages
335 - 337
Database
ISI
SICI code
0368-7147(1996)23:4<335:EIOTSS>2.0.ZU;2-G
Abstract
An experimental investigation was made of the spatial structure of the output beam profile of an YAG:Nd3+ laser with a cavity based on a Sag nac interferometer. In a wide range of pulse repetition frequencies, t he output beam profile could be described by a Gaussian curve with a c onfidence probability of at least 99%. This corresponded to the emissi on of the TEM(00) mode from a stable cavity. The diameter of the radia tion spot was inversely proportional to the shift of a thermooptical l ens from the centre of the Sagnac interferometer.