Performance Enhancement by Threshold Level Control of a Receiver in WDM-PON System with Manchester Coded Downstream and NRZ Upstream Re-Modulation

Bong Kyu KIM; Hwan Seok CHUNG; Sun Hyok CHANG; Sangjo PARK

doi:10.1093/ietcom/e91-b.9.2994

Regular Section

Performance Enhancement by Threshold Level Control of a Receiver in WDM-PON System with Manchester Coded Downstream and NRZ Upstream Re-Modulation

Bong Kyu KIM, Hwan Seok CHUNG, Sun Hyok CHANG, Sangjo PARK

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Keywords: access network, fiber-to-the-home (FTTH), Manchester code, optical re-modulation, passive optical network (PON), optical fiber communications

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2008 Volume E91.B Issue 9 Pages 2994-2997

DOI https://doi.org/10.1093/ietcom/e91-b.9.2994

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Abstract

We propose and demonstrate a scheme enhancing the performance of optical access networks with Manchester coded downstream and re-modulated NRZ coded upstream. It is achieved by threshold level control of a limiting amplifier at a receiver, and the minimum sensitivity of upstream is significantly improved for the re-modulation scheme with 5Gb/s Manchester coded downstream and 2.488Gb/s NRZ upstream data rates.

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