2-GB/S SENSITIVITY OF A GA0.47IN0.53AS PHOTOCONDUCTIVE DETECTOR/GAAS FIELD-EFFECT TRANSISTOR HYBRID PHOTORECEIVER

The authors have measured the 2-Gb/s sensitivity of a photoreceiver consisting of a Ga//0//. //4//7In//0//. //5//3As photoconductive detector and a GaAs low-noise field-effect transistor. For a bit error rate of 10** minus **9, the photoconductive receiver shows a sensitivity of minus 28. 8 dbm at 2 Gb/s and 1. 51 mu m. In view of its high receiver sensitivity and simplicity, the Ga//0//. //4//7In//0//. //5//3As photoconductive detector may be attractive for applications in high data rate lightwave communication systems, particularly local area networks.