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Nd:YAG laser diode-pumped directly into the emitting level at 938 nm

2009; Optica Publishing Group; Volume: 17; Issue: 12 Linguagem: Inglês

10.1364/oe.17.010091

1094-4087

Damien Sangla, François Balembois, Patrick Georges,

Advanced Fiber Laser Technologies

We present the first demonstration of Nd:YAG laser pumped directly in band at 938 nm with a high-brightness fiber-coupled laser diode. Up to 6 W of CW laser emission at 1064 nm have been obtained under an absorbed pump power of 28 W at 938 nm. A comparison between 808 nm and 938 nm pumping, realized by thermal cartography, demonstrates the very low heat generation of in-band pumping. Numerical simulations were also implemented to study and discuss the laser performance of our system.