Abstract
We have demonstrated a AlGaAs-AlAs DBR reflection-type two-wavelength modulator with a novel balanced cavity design. Simultaneous operations at wavelengths of around 860 and 896 nm have been achieved. By using such a new cavity design similar operating voltages have been obtained for both wavelengths. Under separate biasing voltages of 14.5 and 11 V on each quantum-well absorbing region, the maximum reflectivity changes were around 50%.
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