Title :
Intracavity coherent shaping of laser beams
Author :
Barthelemy, A. ; Colombeau, B. ; Couderc, V. ; Desfarges, A. ; Guy, O. ; Kermene, V. ; Louradour, F. ; Vampouille, M.
Author_Institution :
Fac. des Sci., Inst. de Recherche en Commun. Opt. et Microondes, Limoges, France
fDate :
30 Oct-2 Nov 1995
Abstract :
We proposed and demonstrated the use of a self-imaging confocal (SIG) cavity to obtain high efficiencies in a simple way with diode-pumped solid-state lasers. The mode of this cavity fits the pumped volume at best, and optimizes the efficiency. The same SIC resonator permits unusual mode profile selection thanks to the use of proper spatial filterings. These ones occur in two intracavity planes for which the transverse fields are connected by a Fourier transform. There exist SIC resonators without internal lens exhibiting the same properties
Keywords :
Fourier transform optics; focal planes; laser cavity resonators; laser mirrors; laser modes; light coherence; optical images; optical losses; optical pumping; solid lasers; spatial filters; Fourier transform; SIC resonator; diode-pumped solid-state lasers; high efficiencies; internal lens; intracavity coherent laser beam shaping; intracavity planes; self-imaging confocal laser cavity; spatial filtering; transverse fields; unusual mode profile selection; Laser beams; Laser excitation; Laser theory; Lenses; Mirrors; Optical resonators; Pump lasers; Silicon carbide; Solid lasers; Spatial filters;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1995. 8th Annual Meeting Conference Proceedings, Volume 1., IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-2450-1
DOI :
10.1109/LEOS.1995.484661
