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Optical Engineering

Demonstration of 2×ONU 80 Gbps direct detection colorless polarization division multiplexing frequency division multiplexing passive optical network uplink transmission
Author(s): Zhixin Wang; Yinfan Xu; Yanyi Wang; Yuanquan Wang; Nan Chi
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Paper Abstract

In this study, we propose and experimentally demonstrate a simple direct detection passive optical network (PON) uplink transmission scheme based on frequency division multiplexing and polarization division multiplexing. Two optical network units (ONUs) are assigned to two different frequency bands at two different orthogonal polarization directions. At the optical line terminal, both ONU signals can be simultaneously detected by a single photodiode without utilizing any polarization control, polarization selection, or complicated polarization demultiplexing algorithms. As a proof-of-concept, the 2×ONU 80 Gbps 32-ary quadrature amplitude modulation Nyquist single carrier signals are successfully transmitted over 2 km standard single mode fiber or 20 km large effective area fiber with the assistance of frequency domain equalization and decision-directed least-mean-square. The measured bit error rate can be below the 7% pre-forward error correction threshold of 3.8×103. Meanwhile, this scheme is compatible with the widely used wavelength-division multiplexed PON, which shows the promising potential and feasibility of this proposal.

Paper Details

Date Published: 25 April 2016
PDF: 5 pages
Opt. Eng. 55(4) 046113 doi: 10.1117/1.OE.55.4.046113
Published in: Optical Engineering Volume 55, Issue 4
Show Author Affiliations
Zhixin Wang, Fudan Univ. (China)
Yinfan Xu, Fudan Univ. (China)
Yanyi Wang, Fudan Univ. (China)
Yuanquan Wang, Fudan Univ. (China)
Nan Chi, Fudan Univ. (China)

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