Title :
Quadrature amplitude modulation in modulating retroreflector system
Author :
Goetz, P.G. ; Funk, E.E. ; Mahon, R. ; Rabinovich, W.S. ; Binari, S.C.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
Abstract :
It has been shown that the data throughput of an optical modulating retroreflector (MRR) system can be enhanced by use of spectrally efficient M-ary quadrature amplitude modulation (M-ary QAM). It has been demonstrated that this MRR system has sufficient dynamic range to support up to 64-QAM at 30 Mbit/s in a 6.75 MHz channel bandwidth.
Keywords :
light reflection; optical links; optical modulation; quadrature amplitude modulation; 30 Mbit/s; 6.75 MHz; M-ary quadrature amplitude modulation; dynamic range; free-space optical communication; optical modulating retroreflector system; spectral efficiency;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030962
