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The Review of Laser Engineering
Wavelength conversion is essential to extend laser's application fi eld. While introducing wavelength conversion crystals for different phase-matching the crystal properties are explained in detail for quasi phase matching (QPM) and birefringent phase matching. Especially rapidly developing QPM crystals will be reviewed with recent achievements.doi:10.2184/lsj.39.319 fatcat:b6rrqqcxl5gjvhih6eu6h73i3e