Tunable efficient CW ultraviolet generation in periodically poled lithium niobate

Summary form only given. SHG for blue and green generation has been demonstrated in periodically poled LiNbO/sub 3/ (PPLN), and we recently obtained efficient SHG of a pulsed 800 nm laser. Here we report efficient CW UV generation close to the absorption edge in PPLN by intracavity SHG of a Ti:sapphire laser.