Experimemtal Study on a Second-Harmonic Intensity Modulator with Quasi-Phase-Matched Optical Waveguides
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概要
- 論文の詳細を見る
A second-harmonic intensity modulator with quasi-phase-matched optical waveguide is fabricated and demonstrated. The domain-inverted structure and proton-exchanged optical waveguides are fabricated on a Z-cut LiTaO_3 substrate. Traveling-wave type Al electrodes are fabricated on the SiO_2 buffer layer. Second-harmonic radiation can be modulated by giving phase mismatch to the second-harmonic generator by using the electro-optic effect. The conversion efficiency of the device is 0.4%/Wcm^2 and the switching voltage is 180 V, when the duty ratio of the quasi-phase-matched grating is 0.4. Modulation is achieved up to about 1 MHz.
- 社団法人応用物理学会の論文
- 1994-07-15
著者
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Ito Kenchi
Central Research Laboratory Hitachi Ltd.
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Tatsuno Kimio
Central Research Laboratories Hitachi Ltd.
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Helmfrid Sten
Central Research Laboratory Hitachi Ltd.:(present Address)max Planck Institut Fuer Quantenoptik
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Helmfrid Sten
Central Research Laboratory Hitachi Ltd.
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TATSUNO Kimio
Central Research Laboratory, Hitachi, Ltd.
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