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Photonics 2014, 1(2), 146-153; doi:10.3390/photonics1020146

Photonic-Based RF Transceiver for UWB Multi-Carrier Wireless Systems

1,* , 2
1 CNIT, National Photonic Network Laboratory, Via Moruzzi, 1, 56124 Pisa, Italy 2 TeCIP Institute, Scuola Superiore Sant'Anna, Via Moruzzi, 1, 56124 Pisa, Italy These authors contributed equally to this work.
* Author to whom correspondence should be addressed.
Received: 31 January 2014 / Revised: 7 May 2014 / Accepted: 9 May 2014 / Published: 22 May 2014
(This article belongs to the Special Issue All Optical Networks for Communications)
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In this paper an all-optical system exploitable as the core structure for a photonic-based RF transceiver is presented. The proposed scheme is able to simultaneously perform either up- or down-conversion of multiple frequency Ultra-Wide Band (UWB) RF signals, employing a single Mode-Locking Laser (MLL). The system has been experimentally demonstrated and tested by up- and down-converting orthogonal frequency division multiplexing (OFDM) signals over a bandwidth of about 4 GHz. The scheme’s performance has been validated by measuring the error vector magnitude (EVM) of the OFDM signals over the whole considered RF spectrum (from 5 GHz to 26.5 GHz), both in up-conversion and in down-conversion. The measurements show negligible power penalties, lower than 0.5 dB. Since the proposed scheme can act either as an up- or down-converter, and it is composed by easily integratable devices, two identical structures can be combined on a single integrated platform, sharing a single MLL, to build a compact and efficient UWB transceiver.
Keywords: mode-locked laser; wireless; microwave photonics mode-locked laser; wireless; microwave photonics
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Scotti, F.; Laghezza, F.; Ghelfi, P.; Pinna, S.; Serafino, G.; Bogoni, A. Photonic-Based RF Transceiver for UWB Multi-Carrier Wireless Systems. Photonics 2014, 1, 146-153.

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