Abstract

We report the characterization of a quasi-phase-matched second-harmonic generation device in LiTaO₃ that has a periodically domain-inverted region and a proton-exchanged channel waveguide. A blue-light power of 2.4 mW was obtained at a 424-nm wavelength. The observed temperature bandwidth for FWHM power is approximately 3°C-cm, which is three times wider than that in a similar device in LiNbO₃. It is also shown that diffraction-limited focusing of the generated blue light may be obtained.

© 1991 Optical Society of America

Intracavity second-harmonic generation with a periodically domain-inverted LiTaO3 device

Yasuo Kitaoka, Kiminori Mizuuchi, Kazuhisa Yamamoto, Makoto Kato, and Takatomo Sasaki
Opt. Lett. 21(24) 1972-1974 (1996)

First-order quasi-phase-matched second-harmonic generation in a LiTaO₃ waveguide

Kiminori Mizuuchi and Kazuhisa Yamamoto
Appl. Opt. 33(10) 1812-1818 (1994)

LiNbO₃ waveguide second-harmonic-generation device phase matched with a fan-out domain-inverted grating

Y. Ishigame, T. Suhara, and H. Nishihara
Opt. Lett. 16(6) 375-377 (1991)

Generation of 340-nm light by frequency doubling of a laser diode in bulk periodically poled LiTaO₃

Kiminori Mizuuchi and Kazuhisa Yamamoto
Opt. Lett. 21(2) 107-109 (1996)

Efficient 340-nm light generation by a ridge-type waveguide in a first-order periodically poled MgO:LiNbO₃

Kiminori Mizuuchi, Tomoya Sugita, Kazuhisa Yamamoto, Tatsuo Kawaguchi, Takeshi Yoshino, and Minoru Imaeda
Opt. Lett. 28(15) 1344-1346 (2003)