Radio over fiber link with adaptive order n-QAM optical phase modulated OFDM and digital coherent detection

Abstract

Successful digital coherent demodulation of asynchronous optical phase-modulated adaptive order QAM (4, 16, and 64) orthogonal frequency division multiplexing signals is achieved by a single reconfigurable digital receiver after 78 km of optical deployed fiber transmission. © 2011 Wiley Periodicals, Inc.