title: 42%-efficient single-pass cw second-harmonic generation in periodically poled lithium niobate.
abstract: We present a full-wafer fabrication process for periodically poled lithium niobate with a 6.5-mum domain period. Samples that were 53 mm long and 0.5 mm thick were obtained with this process for single-pass cw 1064-nm Nd:YAG second-harmonic generation. These samples exhibited 78% of the ideal nonlinear coefficient, had a measured conversion efficiency of 8.5% /W in the low-power limit, and produced 2.7 W of cw 532-nm output with 6.5 W of cw input, which corresponds to 42% power conversion efficiency.
authors.forename: G D
authors.initials: GD
authors.lastname: Miller
authors.forename: R G
authors.initials: RG
authors.lastname: Batchko
authors.forename: W M
authors.initials: WM
authors.lastname: Tulloch
authors.forename: D R
authors.initials: DR
authors.lastname: Weise
authors.forename: M M
authors.initials: MM
authors.lastname: Fejer
authors.forename: R L
authors.initials: RL
authors.lastname: Byer