TY - GEN
T1 - Role of the pumping beam's shape in microchip lasers
AU - Chen, Yung-Fu
PY - 2003/1/1
Y1 - 2003/1/1
N2 - A technique for the generation of the cylindrical symmetry Laguerre-Gaussian fields TEM∗p,1 with p = 0 and specified values of 1 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 TEM0,1 mode with the distribution cos2 1θ (or sin2 1θ) in azimuthal angle, having 2l nodes in azimuth.
AB - A technique for the generation of the cylindrical symmetry Laguerre-Gaussian fields TEM∗p,1 with p = 0 and specified values of 1 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 TEM0,1 mode with the distribution cos2 1θ (or sin2 1θ) in azimuthal angle, having 2l nodes in azimuth.
UR - http://www.scopus.com/inward/record.url?scp=84947207482&partnerID=8YFLogxK
U2 - 10.1109/EQEC.2003.1314306
DO - 10.1109/EQEC.2003.1314306
M3 - Conference contribution
AN - SCOPUS:84947207482
T3 - 2003 European Quantum Electronics Conference, EQEC 2003
BT - 2003 European Quantum Electronics Conference, EQEC 2003
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - European Quantum Electronics Conference, EQEC 2003
Y2 - 22 June 2003 through 27 June 2003
ER -