We produced ultraviolet radiation by frequency tripling the mode-locked emission of an external cavity laser containing a tapered GaAlAs amplifier gain element. The 429-nm second harmonic produced by a KNbO3 crystal was sum-frequency mixed with the 858-nm fundamental in a Li3BO5 crystal, generating as much as 50 μW of power at 286 nm.
© 1995 Optical Society of America
Original Manuscript: May 1, 1995
Published: August 1, 1995
Lew Goldberg and Dahv A. V. Kliner, "Tunable UV generation at 286 nm by frequency tripling of a high-power mode-locked semiconductor laser," Opt. Lett. 20, 1640-1642 (1995)