Optical Layer Modulation Format Conversion in OFDM-Based Flexible Optical Networks

DOI

10.2991/cimns-16.2016.12How to use a DOI?

Keywords

orthogonal frequency division multiplexing; modulation format conversion; direct detection; flexible optical networks

Abstract

In this letter, we proposes and experimentally demonstrates an optical layer modulation format conversion technique from quadrature phase shift keying (QPSK) to 16 quadrature amplitude modulation (QAM) in orthogonal frequency division multiplexing (OFDM)-based flexible optical wavelength division multiplex (WDM) networks. The 16-QAM-OFDM signal is generated by direct detection after the superposition of two QPSK-OFDM optical signals with different optical powers and wavelengths. The optical power ratio 2:1 of two QPSK-OFDM signals can be realized by adjusting the power of two coupled optical signal in switching nodes. The tolerance to symbol delay and power deviation of two QPSK-OFDM signals is also experimentally evaluated.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Hejun Zhu
AU  - Liehuang Zhu
PY  - 2016/09
DA  - 2016/09
TI  - Optical Layer Modulation Format Conversion in OFDM-Based Flexible Optical Networks
BT  - Proceedings of the 2016 International Conference on Communications, Information Management and Network Security
PB  - Atlantis Press
SP  - 47
EP  - 50
SN  - 2352-538X
UR  - https://doi.org/10.2991/cimns-16.2016.12
DO  - 10.2991/cimns-16.2016.12
ID  - Zhu2016/09
ER  -