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1

CNIT, National Photonic Network Laboratory, Via Moruzzi, 1, 56124 Pisa, Italy

2

TeCIP Institute, Scuola Superiore SantAnna, Via Moruzzi, 1, 56124 Pisa, Italy



These authors contributed equally to this work.





*

Author to whom correspondence should be addressed.



Abstract 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. View Full-Text

Keywords: mode-locked laser; wireless; microwave photonics mode-locked laser; wireless; microwave photonics





Autor: Filippo Scotti 1,†, Francesco Laghezza 1,†, Paolo Ghelfi 1,* , Sergio Pinna 2, Giovanni Serafino 2 and Antonella Bogoni 1

Fuente: http://mdpi.com/



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