DocumentCode :
3191918
Title :
Role of the pumping beam´s shape in microchip lasers
Author :
Chen, Y.F.
Author_Institution :
Dept. of Electrophys., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fYear :
2003
fDate :
22-27 June 2003
Firstpage :
448
Abstract :
A technique for the generation of the cylindrical symmetry Laguerre-Gaussian fields TEM*p,l with p = 0 and specified values of l in a fiber-coupled diode end-pumped solid-state laser is reported. The key novelty is to produce a doughnut-shaped pump-profile by defocusing a standard fiber-coupled diode. The experimental results demonstrate that the stable transverse-mode pattern near the pump threshold is usually a LG TEM0,l mode with the distribution cos2 lθ (or sin2 lθ ) in azimuthal angle, having 2l nodes in azimuth.
Keywords :
laser beams; laser modes; microchip lasers; optical fibre couplers; optical focusing; optical pumping; Laguerre-Gaussian fields TEM mode; doughnut-shaped pump-profile; fiber-coupled diode end-pumped solid-state laser; microchip lasers; pumping beam shape; stable transverse-mode pattern; standard fiber-coupled diode defocusing; Fluorescence; Frequency; Interference; Laser feedback; Laser modes; Microchip lasers; Optical feedback; Optical refraction; Pump lasers; Solid lasers;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Quantum Electronics Conference, 2003. EQEC '03. European
Print_ISBN :
0-7803-7733-8
Type :
conf
DOI :
10.1109/EQEC.2003.1314306
Filename :
1314306
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=3191918
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