Title :
Comparison of QPSK and 8-QAM in a Three Spatial Modes Transmission
Author :
Genevaux, Philippe ; Salsi, Massimiliano ; Boutin, Aurelien ; Verluise, Frederic ; Sillard, P. ; Charlet, G.
Author_Institution :
Bell Labs., Alcatel-Lucent, Nozay, France
Abstract :
We present a transmission experiment employing three spatial modes through a few-mode fiber coupled to the surrounding single mode equipment by a packaged mode multiplexer and demultiplexer. We evaluate and compare the impact of the residual crosstalk in our system on QPSK and 8QAM modulation schemes after 20- and 40-km transmission. We also give an estimation of the crosstalk induced by splices and by the few-mode fiber in our system.
Keywords :
multiplexing equipment; optical crosstalk; optical fibre communication; quadrature amplitude modulation; quadrature phase shift keying; 8-QAM; QPSK; distance 20 km; distance 40 km; few-mode fiber; packaged mode demultiplexer; packaged mode multiplexer; residual crosstalk; single mode equipment; spatial modes transmission; Couplings; Crosstalk; Multiplexing; Optical fiber amplifiers; Optical fiber polarization; Phase shift keying; Modulation coding; optical fiber communication;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2296092
