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10 GHz bandwidth traveling-wave LiNbO3optical waveguide modulator

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3 Author(s)
Izutsu, M. ; Osaka University, Osaka, Japan ; Itoh, T. ; Sueta, T.

A broad-band traveling-wave electrooptic modulator of Ti-diffused LiNbO3optical waveguide was designed, constructed, and tested at 0.63 μm over a bandwidth of 10.5 GHz. Using a novel asymmetric electrode configuration as a microwave waveguide, practically smooth frequency response of the modulator was obtained. For 300 mW drive power, the phase modulation index was 1 rad at 2 GHz and 0.53 rad at 10 GHz, while the intensity modulation index was 64 and 34 percent, respectively.

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Quantum Electronics, IEEE Journal of  (Volume:14 ,  Issue: 6 )