Blue-light laser source by sum-frequency mixing in Nd : YAl3(BO3)(4)

Sum-frequency mixing in neodymium-doped YAl3(BO3)(4) of its fundamental las er Line at 1062 nm and the pump light from a tunable Ti:sapphire laser has been used to generate blue radiation from 435 to 465 nm in an end-pumped co nfiguration. In nonoptimal preliminary experiments 22 mu W at 458 nm was ob tained out of 200 mW absorbed power at 807 nm. Nd:YAB, therefore, emerges a s a promising laser material for diode-pumped solid-state lasers in the blu e spectral region. (C) 1998 American Institute of Physics. [S0003-6951(98)0 0446-X].