Patent ID: 6963696

Claim:
A burst mode receiver comprising: a converter which converts a received optical signal including a plurality of packets transmitted in burst mode into an electrical signal; a pre-amplifier coupled to the converter through a capacitor, which receives an AC-coupled electrical signal from the converter and outputs a corresponding voltage signal, the voltage signal having a driven edge time constant for each driven edge of the AC-coupled electrical signal and an undriven edge time constant that is extended and longer than the driven edge time constant for each undriven edge of the AC-coupled electrical signal; and a differential amplifier having a hysteresis circuit coupled to the pre-amplifier, the differential amplifier receiving the voltage signal from the pre-amplifier and outputting a digital signal corresponding to the voltage signal, wherein the hysteresis circuit holds the digital signal in a particular state for each undriven edge or the voltage signal and changes the state of the digital signal for each driven edge of the voltage signal.