A. Jechow and R. Menzel, "Highly Efficient Visible Light Generation at 488 nm Using High Brilliance Laser Diodes and Periodically Poled Materials,"
in Advances in Optical Sciences Congress,
OSA Technical Digest (CD)
(Optical Society of America, 2009), paper NThB2.
SHG conversion efficiencies of up to 50% using PPLN waveguides in single pass and 30% using PPLN bulk crystals in a mini ring resonator could be achieved by frequency doubling high-brilliance laser diodes.