Blue Second-harmonic Generation with Low Cerenkov Angles from Ta2O5/KTiOPO4 Waveguides

Hitoshi Tamada; Chiharu Isobe; Takaaki Murakami; Masaki Saitoh

doi:10.1364/CBGL.1992.FC3

Compact Blue-Green Lasers
Technical Digest Series (Optica Publishing Group, 1992),
paper FC3
•https://doi.org/10.1364/CBGL.1992.FC3

Blue Second-harmonic Generation with Low Cerenkov Angles from Ta₂O₅/KTiOPO₄ Waveguides

Hitoshi Tamada, Chiharu Isobe, Takaaki Murakami, and Masaki Saitoh

Compact Blue-Green Lasers 1992

Santa Fe, New Mexico United States
20–21 February 1992
ISBN:

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Frequency Conversion in Guided-Wave Devices (FC)

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H. Tamada, C. Isobe, T. Murakami, and M. Saitoh, "Blue Second-harmonic Generation with Low Cerenkov Angles from Ta2O5/KTiOPO4 Waveguides," in Compact Blue-Green Lasers, Technical Digest Series (Optica Publishing Group, 1992), paper FC3.

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Abstract

Efficient blue second-harmonic generation (SHG) with Cerenkov angles of less than 1° has been observed for a Ta₂O₅/KTiOPO₄ channel waveguide¹⁾ In order to realize low (<1°) Cerenkov angles as well as a high SHG efficiency, it is important to adjust waveguide parameters so that the overlapping between a nonlinear polarization wave and a SH wave in the KTiOPO₄ substrate becomes quite large as shown in Fig.1.

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