GaAs/GaAlAs MULTIQUANTUM WELL ELECTROABSORPTION REFLECTION MODULATOR AND SELF ELECTRO-OPTIC EFFECT DEVICE (SEED)

GaAs/GaAlAs MQW reflection modulators and SEED have been investigated. The analysis is emphasized on the combined behaviors of quantum confined Stark effect (QCSE), distributed Bragg reflector (DBR), and different asymmetric Fabry–Perot cavities (ASFP). Experimental results include the fabrication and characterization of a modulator array with a contrast ratio of about 10 dB and S-SEED array with optical switch energy less than 10 fJ/(µm)2. An application of a modulator array in microoptical interconnection module is also demonstrated.