An Implement of Clock Phase Alignment for Burst-Mode Data Recovery in GPON

Abstract

This paper presents an implement of a broadband clock phase alignment (CPA) for burst mode data recovery deployed in passive optical networks (PON) which are designed to deliver gigabit data rates to the home. A fast and robust CPA has been designed and demonstrated based on the over-sampling & tap-selection technique that the incoming preamble containing a repeated "1010" bit sequence is sampled with multiple clock phases and selects the phase-tap.