title: Broadening of the second-harmonic phase-matching bandwidth in a temperature-gradient-controlled periodically poled Ti:LiNbO3 channel waveguide.
abstract: We have demonstrated broadening of the phase-matching bandwidth in a periodically poled Ti:LiNbO3 (Ti:PPLN) channel waveguide Lambda = 16.6 microm) by using a temperature-gradient-control technique. With this technique, we have achieved a second-harmonic phase-matching bandwidth of more than 13 nm in a 74-mm-long Ti:PPLN waveguide, which has a 0.21-nm phase-matching bandwidth at a uniform temperature.
authors.forename: Yeung Lak
authors.initials: YL
authors.lastname: Lee
authors.forename: Young-Chul
authors.initials: YC
authors.lastname: Noh
authors.forename: Changsoo
authors.initials: C
authors.lastname: Jung
authors.forename: Tae
authors.initials: T
authors.lastname: Yu
authors.forename: Do-Kyeong
authors.initials: DK
authors.lastname: Ko
authors.forename: Jongmin
authors.initials: J
authors.lastname: Lee