Abstract

In recent years there has been increasing interest in the use of quasi-phase-matched periodically poled lithium niobate (PPLN) for a variety of frequency conversion applications.¹ However, the performance of QPM devices using PPLN has been limited for operation at high peak powers because of difficulty in forming gratings in samples thicker than I mm, and at high average power in the visible without resort to operation at high temperatures because of the onset of output beam distortion at high light intensity.

© 2000 Optical Society of America