Abstract
A novel clock recovery scheme for burst mode (BM) transmission is proposed and analyzed. The method utilizes the characteristics of the non-return-to-zero (NRZ) signals propagating through a dispersive single mode optical fiber (SMF) at wavelength around 1550 nm to extract the clock information. The amplified photocurrent carrying the generated clock information by the fiber dispersion is fed directly into the injection locked oscillator (ILO) without perfonning conversions between currents and voltages. The proposed scheme is investigated systematically by simulation and the trade-offs between the transmission reach and the locking time is examined. It is shown that the clock recovery method is highly effective for burst mode transmission reach of 17 -38 km at 10 Gbit/s, which is typical of access networks.
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