Normal-incidence 1.56-μm MQW asymmetric Fabry-Perot modulator (AFPM) for passive picocells

© 2002 IEEE. We have fabricated air-bridged modulators with bandwidths exceeding 10-GHz, the highest yet reported for InGaAsP/InGaAsP MQW AFPMs. Third-order intermodulation between the photodetected downlink signal and the modulated uplink signal is characterised for the first time.