Reshaping of a second-harmonic curve in periodically poled Ti:LiNb O3 channel waveguide by a local-temperature-control technique

Yeung Lak Lee, Young Chul Noh, Changsoo Jung, Tae Jun Yu, Bong Ahn Yu, Jongmin Lee, Do Kyeong Ko, Kyunghwan Oh

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We have demonstrated reshaping and bandwidth control of a second-harmonic (SH) curve in a periodically poled Ti:LiNb O3 (Ti:PPLN) waveguide (Λ=16. 6 μm) by using a local-temperature-control technique. With this technique, we have achieved several useful shapes of the SH curve such as an almost ideal sinc function, and double and multipeaks in a 74-mm -long Ti:PPLN waveguide, which has a prechirped SH curve at room temperature. More than 60% improvement of SH conversion efficiency and a 5 nm broadening of SH phase-matching bandwidth were achieved.

Original languageEnglish
Article number011104
Pages (from-to)011104-1-011104-3
JournalApplied Physics Letters
Issue number1
Publication statusPublished - 2005 Jan 1


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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