Title :
Dispersion-tolerant transmission of QPSK and M-QAM signals simultaneously Modulated at 1 and 38 GHz over a hybrid fiber-radio link
Author :
Martínez, Alejandro ; Polo, Valentín ; Pfrommer, Holger ; Martí, Javier
Author_Institution :
Nanophotonics Technol. Center, Univ. Politecnica de Valencia, Spain
Abstract :
We demonstrate the error-free transmission of quadrature-phase-shift keying (QPSK) and M-quadrature amplitude modulation (M-QAM) signals simultaneously modulated onto 1- and 38-GHz carriers using a dispersion-tolerant optical modulation scheme. Measurements of error-free transmission of 155-Mb/s 128-QAM signals at 1 GHz over 50 km of standard single-mode fiber and 54-Mb/s QPSK signals at 38 GHz over the same fiber span and a 2-m radio link are reported. The results show that the modulation scheme can be used in control stations that feed multiservice access nodes regardless of the access type (wireline or wireless).
Keywords :
microwave links; microwave photonics; optical fibre dispersion; optical fibre networks; quadrature amplitude modulation; quadrature phase shift keying; radio access networks; 1 GHz; 155 Mbit/s; 2 m; 38 GHz; 54 Mbit/s; M-QAM signals; M-quadrature amplitude modulation; QPSK; dispersion-tolerant transmission; error-free transmission; hybrid fiber-radio link; multiservice access nodes; quadrature-phase-shift keying; standard single-mode fiber; Amplitude modulation; Baseband; Costs; Feeds; Measurement standards; Optical fiber dispersion; Optical modulation; Quadrature phase shift keying; RF signals; Radio frequency;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.821246
