Title :
Modal structure analysis for a class of axially symmetric flat-topped laser beams
Author :
Borghi, Riccardo ; Santarsiero, Massimo
Author_Institution :
Dipt. di Ingegneria Elettronica, Univ. degli Studi Roma Tre, Italy
fDate :
5/1/1999 12:00:00 AM
Abstract :
A recently proposed algorithm for the determination of the modal power distribution inside a stable multimode laser cavity is applied to the case of a flat-topped transverse intensity beam profile. We show that such a technique leads to closed-form expressions for the modal weights and for the M2 factor of the output beam. Comparisons with experimental results present in literature are also reported
Keywords :
laser beams; laser cavity resonators; laser modes; laser theory; symmetry; M2 factor; axially symmetric flat-topped laser beams; closed-form expressions; flat-topped transverse intensity beam profile; modal power distribution; modal structure analysis; modal weights; output beam; stable multimode laser cavity; Geometrical optics; Holography; Laser beams; Laser modes; Laser stability; Laser theory; Optical interferometry; Optical propagation; Power lasers; Spatial coherence;
Journal_Title :
Quantum Electronics, IEEE Journal of
