The noise performance of 20 GHz optical receivers using a distributed amplifier and p-i-n photodiode combination with matched and unmatched input terminations

High speed optical receivers have been fabricated by using p-i-n diode and distributed amplifier combinations. The preliminary experimental results show that the +/-3 dB bandwidth from 1 GHz to 20 GHz was achieved for both input matched and unmatched configurations, while the later reduced the average equivalent input noise to nearly half the value of the former.