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Low-drive-power asymmetric Mach-Zehnder modulator with band-limited operation

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3 Author(s)
Zhou, Y. ; Dept. of Electr. Eng., Osaka Univ., Japan ; Izutsu, M. ; Sueta, T.

A novel 2×2 asymmetric Mach-Zehnder interferometric modulator is fabricated on Ti:LiNbO3 waveguide and tested at microwave frequency. Band-limited operation was realized by using a traveling-wave periodic polarity reversed structure with the asymmetric strip line as the modulator electrode instead of the conventional coplanar waveguide. For a modulator with a three-section polarity reversed electrode, a 3-dB bandwidth of 7 GHz was obtained experimentally from 9 to 16 GHz centered at 12 GHz

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Lightwave Technology, Journal of  (Volume:9 ,  Issue: 6 )