Title :
Influence of energy-transfer upconversion on the performance of high-power diode-end-pumped CW lasers
Author :
Chen, Y.F. ; Lan, Y.P. ; Wang, S.C.
Author_Institution :
Dept. of Electrophys., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
5/1/2000 12:00:00 AM
Abstract :
The influence of energy-transfer upconversion (ETU) on the performance of diode-end-pumped lasers is studied by including ETU effects into the space-dependent rate equations. The dependence of ETU rates on the mode-to-pump size ratio and on the output mirror transmission is derived. Experiments for Nd:YAG and Nd:YVO/sub 4/ crystals are performed to validate the present model. It is found that the ETU process increases the sensitivity of the output power to the output mirror transmission but its influence on the output power is not significant for low output transmission.
Keywords :
laser beams; laser mirrors; neodymium; optical frequency conversion; optical pumping; sensitivity; solid lasers; yttrium compounds; Nd:YAG crystals; Nd:YVO/sub 4/ crystals; YAG:Nd; YAl5O12:Nd; YVO/sub 4/:Nd; diode-end-pumped lasers; energy-transfer upconversion; high-power diode-end-pumped CW lasers; low output transmission; mode-to-pump size ratio; output mirror transmission; output power; sensitivity; space-dependent rate equations; Associate members; Diodes; Equations; Laser modes; Laser theory; Lasers and electrooptics; Mirrors; Neodymium; Photonic crystals; Power generation;
Journal_Title :
Quantum Electronics, IEEE Journal of
