Lightwave Transceivers for Optical Access Systems

10G-EPON systems have attracted a great deal of attention as a way of exceeding to realize over 10Gb/s for optical subscriber networking. Rapid burst-mode transmitting/receiving techniques are the key technologies enabling the burst-mode upstream transmission of 10G-EPON systems. In this paper, we have developed a OLT burst-mode 3R receiver incorporating a burst-mode AGC optical receiver and an 82.5GS/s over-sampling burst-mode CDR and a ONU burst-mode transmitter with high launch power DFB-LD of 1.27µm wavelength to fully compliant with IEEE802.3av 10G-EPON PR30 standards. The transmitting characteristics of a fast LD turn-on/off time of less than 6ns and a high launch power of more than +8.0dBm, and the receiving characteristics of receiver sensitivity of -30.1dBm and the upstream power budget of 38.1dB are successfully achieved.