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Optical Engineering

Single-feeder fiber colorless wavelength-division-multiplexing passive optical network using differential quadrature phase-shift keying downstream and intensity remodulated upstream signals
Author(s): Yousaf Khan; Xiangjun Xin; Idress Afridi; Aftab Husain; Abdul Latif
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Paper Abstract

Wavelength-division-multiplexing passive optical network (WDM-PON) has been considered as a promising next generation access network solution. A centralized light-wave colorless WDM-PON architecture based on a single feeder fiber. At the optical line terminal, differential quadrature phase shift keying (DQPSK) modulated signal at 10 Gbps is utilized for downstream transmission is proposed and demonstrated. At the optical line unit, part of the downstream signal is remodulated using an intensity modulated on/off keying technique for upstream transmission. Simulation results show that downstream and upstream signals achieved error-free transmission at 10-Gbps symmetric data rate with negligible power penalties. The proposed scheme exhibit improved tolerance to Rayleigh backscattering over 20 km standard single mode fiber.

Paper Details

Date Published: 4 January 2013
PDF: 7 pages
Opt. Eng. 52(1) 015001 doi: 10.1117/1.OE.52.1.015001
Published in: Optical Engineering Volume 52, Issue 1
Show Author Affiliations
Yousaf Khan, Beijing Univ. of Posts and Telecommunications (China)
Xiangjun Xin, Beijing Univ. of Posts and Telecommunications (China)
Idress Afridi, Beijing Univ. of Posts and Telecommunications (China)
Aftab Husain, Beijing Univ. of Posts and Telecommunications (China)
Abdul Latif, Beijing Univ. of Posts and Telecommunications (China)


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