The 67th JSAP Spring Meeting 2020

Presentation information

Oral presentation

Code-sharing Session » 【CS.1】 Code-sharing Session of 3.5 & 3.14

[12p-B508-13~15] 【CS.1】 Code-sharing Session of 3.5 & 3.14

Thu. Mar 12, 2020 4:45 PM - 5:30 PM B508 (2-508)

Katsuhiko Miyamoto(Chiba Univ.)

4:45 PM - 5:00 PM

[12p-B508-13] Fabrication of Annealed Proton-Excahnged Waveguide in Periodically-Poled MgO:s-LiTaO3 for High Power Second Harmonic Generation

Ryosuke Noro1, Masahide Okazaki2, Ikuo Mizobata2, Masahiro Uemukai1, Tomoyuki Tanikawa1, Ryuji Katayama1 (1.Osaka Univ., 2.SCREEN)

Keywords:ferroelectrics, wavelength conversion, waveguide

In recent years, a 1 W class ultraviolet laser for application for a laser direct writing system has been required, and third harmonic light with wavelength of 350 nm such as Nd: YAG laser is considered to use. MgO:s-LiTaO3 is an attractive material for the above application, and by increasing the waveguide mode size to 30 µm, strong excitation in the 10 W class is possible, and high output can be expected. In this work, an annealed proton-exchanged waveguide with a large waveguide mode size in MgO:s-LiTaO3 was fabricated.