High performance of 10-Gb/s APD/preamplifier optical-receiver module with compact size

A 10-Gb/s optical-receiver module comprising an InAlAs avalanche photodiode and an SiGe-HBT preamplifier with differential outputs has been developed. The capacity of the newly designed optical-receiver module package is about 1 cc and is compact enough to be incorporated into a transceiver or a full-receiver module. The performance of the newly designed optical-receiver module is excellent for the moderate fiber-length link application. The measured back-toback minimum sensitivity of -29.5 dBm is achieved with a pseudorandom binary sequence of 2/sup 31/ -1 at a bit error rate of 10/sup -9/.