Sum frequency generation with two orbital angular momentum carrying laser beams

Yan Li, Zhi-Yuan Zhou, Dong-Sheng Ding, Bao-Sen Shi
2015 Journal of the Optical Society of America. B, Optical physics  
Frequency sum of two light beams carrying orbital angular momentum (OAM) in quasi-phase matching crystals was reported for the first time. The situations in which one light carried OAM and the other is in Gaussian mode and both beams carried OAM were studied in detail. An arbitrary sum arithmetic of lights with OAM was demonstrated in the conversion process. Our study is very promising in constructing hybrid OAM-based optical communication networks and all optical switching.
doi:10.1364/josab.32.000407 fatcat:apybbaqwdjdf3ixkv4z65cqjhi