Abstract
We experimentally demonstrate backward second-harmonic generation in periodically poled LiNbO3 with a 3.3- domain period. We observed higher-order phase matching near 1490, 1600, and 1700 nm (fundamental) for the 19th, 18th, and 17th orders, respectively, with a maximum conversion efficiency of 0.02%.
© 1997 Optical Society of America
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