Abstract
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 LiTaO3 substrate. Traveling-wave type Al electrodes are fabricated on the SiO2 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%/Wcm2 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.
| Original language | English |
|---|---|
| Number of pages | 1 |
| Journal | Japanese journal of applied physics |
| Volume | 33 |
| Issue number | 7R |
| DOIs | |
| Publication status | Published - 1994 Jul |
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
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Ito, K., Helmfrid, S., & Tatsuno, K. (1994). Experimental Study on a Second-Harmonic Intensity Modulator with Quasi-Phase-Matched Optical Waveguides. Japanese journal of applied physics, 33(7R). https://doi.org/10.1143/JJAP.33.3929