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.
Keywords: mode-locked laser; wireless; microwave photonics
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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.
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(2):146-153.
Scotti, Filippo; Laghezza, Francesco; Ghelfi, Paolo; Pinna, Sergio; Serafino, Giovanni; Bogoni, Antonella. 2014. "Photonic-Based RF Transceiver for UWB Multi-Carrier Wireless Systems." Photonics 1, no. 2: 146-153.