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Proceedings Paper

Periodically poled LiNbO3 wavelength converter with buried waveguide in telecommunication wavelength
Author(s): T. Kishimoto; K. Inafune; Y. Ogawa; N. Sekine; H. Murai; H. Sasaki
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Paper Abstract

We have developed a periodically poled LiNbO3 (PPLN) wavelength converter with a buried waveguide to improve a mode overlap between a fundamental light and a converted light. We formed a periodically poling by applying highvoltage and a buried waveguide by mechanical processes and a burying process. We designed quasi-phase-matching for second harmonic generation (SHG) in a telecommunication wavelength. We achieved a larger overlap between them in the PPLN buried waveguide than that in a ridge waveguide and confirmed improvement of the SHG conversion efficiency. We also demonstrated wavelength conversion based on cascaded SHG and difference frequency generation (DFG) in a single PPLN waveguide device for fiber-optic communication systems. Additionally, we found out a signal wavelength conversion bandwidth of the cascaded SHG and DFG covering most of C and L bands.

Paper Details

Date Published: 2 March 2020
PDF: 6 pages
Proc. SPIE 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX, 112641R (2 March 2020); doi: 10.1117/12.2542210
Show Author Affiliations
T. Kishimoto, Oki Electric Industry Co., Ltd. (Japan)
National Institute of Information and Communications Technology (Japan)
K. Inafune, Oki Electric Industry Co., Ltd. (Japan)
Y. Ogawa, National Institute of Information and Communications Technology (Japan)
N. Sekine, National Institute of Information and Communications Technology (Japan)
H. Murai, Oki Electric Industry Co., Ltd. (Japan)
H. Sasaki, Oki Electric Industry Co., Ltd. (Japan)


Published in SPIE Proceedings Vol. 11264:
Nonlinear Frequency Generation and Conversion: Materials and Devices XIX
Peter G. Schunemann; Kenneth L. Schepler, Editor(s)

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