Abstract
Type II quasi-phase matching was employed for first-order frequency doubling of a single-longitudinal-mode Ti:sapphire laser in periodically poled KTP with a domain-inverted period of . In a single-pass configuration, 0.44 mW of UV power at 398.8 nm was generated for an input of 780 mW, corresponding to a normalized conversion efficiency of . The nonlinear coefficient was deduced from the measurements. The larger grating period for the type II quasi-phase-matched second-harmonic-generation process than for type I quasi-phase matching, lowers the fabrication constrains in the short-wavelength region and increases the acceptance bandwidth.
© 1999 Optical Society of America
Full Article | PDF ArticleMore Like This
V. Pasiskevicius, S. J. Holmgren, S. Wang, and F. Laurell
Opt. Lett. 27(18) 1628-1630 (2002)
S. Wang, V. Pasiskevicius, F. Laurell, and H. Karlsson
Opt. Lett. 23(24) 1883-1885 (1998)
Rui Wu, Yuping Chen, Junfeng Zhang, Xianfeng Chen, and Yuxing Xia
Appl. Opt. 44(26) 5561-5564 (2005)