Self-optical parametric oscillation is demonstrated for the first time to our knowledge in a periodically poled neodymium-doped lithium niobate (Nd:PPLN) crystal. The crystal is pumped by a cw Ti:sapphire laser at 813.5 nm. The Nd3+ ions absorb the 813.5-nm radiation to generate 1084-nm laser oscillation. The internally Q switched 1084-nm radiation pumps the periodically poled lithium niobate host matrix to generate optical parametric oscillation at 1.55 and 3.6 µm . Up to 24% conversion efficiency from laser to signal is observed.
© 2002 Optical Society of America
(190.4400) Nonlinear optics : Nonlinear optics, materials
L. Barraco, A. Grisard, E. Lallier, P. Bourdon, and J.-P. Pocholle, "Self-optical parametric oscillation in periodically poled neodymium-doped lithium niobate," Opt. Lett. 27, 1540-1542 (2002)