WDM PON using 10-Gb/s DPSK downstream and re-modulated 10-Gb/s OOK upstream based on SOA

Jing HUANG; Deming LIU

doi:10.1007/s12200-010-0114-9

Front. Optoelectron. ›› 2010, Vol. 3 ›› Issue (4) : 339 -342. DOI: 10.1007/s12200-010-0114-9

RESEARCH ARTICLE

WDM PON using 10-Gb/s DPSK downstream and re-modulated 10-Gb/s OOK upstream based on SOA

Jing HUANG ^*
, Deming LIU

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Abstract

A signal remodulation scheme of 10-Gb/s differential phase-shift keying (DPSK) downstream and 10-Gb/s on-off keying (OOK) upstream using a semiconductor optical amplifier (SOA) and a Mach-Zehnder intensity modulator (MZ-IM) at the optical networking unit (ONU) side for wavelength division multiplexed passive optical network (WDM PON) is proposed. Simulation results indicate that error-free operation can be achieved in a 20-km transmission, and the receiver sensitivity of return-to-zero differential phase-shift keying (RZ-DPSK) is higher than nonreturn-to-zero differential phase-shift keying (NRZ-DPSK) in the proposed scheme.

Keywords

wavelength division multiplexed passive optical network (WDM PON) / differential phase-shift keying (DPSK) / semiconductor optical amplifier (SOA)

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Jing HUANG, Deming LIU. WDM PON using 10-Gb/s DPSK downstream and re-modulated 10-Gb/s OOK upstream based on SOA. Front. Optoelectron., 2010, 3(4): 339-342 DOI:10.1007/s12200-010-0114-9