Abstract
Niobium (Nb) -doped KTiOPO4 (KTP) has been investigated. We report the crystal growth of Nb-doped KTP, the effects of content variation of Nb dopant on the phase-matching properties, and our success in obtaining 90°non-critical phase matching (NCPM) of Nd: YAG 1064 nm laser. We also present an analysis in thecorrelation between the NCPM and variation in the content of Nb dopant and the decreasing effect of Nbdoping on the phase-matching cutoff wavelength of KTP.
