Amplitude and phase modulation in a 4 μm-thick GaAs/AlGaAsmultiple quantum well modulator |
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| Authors: | Hsu TY Yu WY Efron U |
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| Affiliation: | Hughes Res. Labs., Malibu, CA; |
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| Abstract: | The experimental results of a 4 μm-thick GaAs/AlGaAs MQW modulator show an ~10:1 on/off ratio with an applied voltage of 20 V (Δα~6×103/cm at E~50 kV/cm) and ~0.4 πrad of phase shift with an applied voltage of 10 V (Δn~0.04 at E~25 kV/cm). Such high electro-optical modulations have previously been reported only in MQW optical waveguide modulators |
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