<title>Application of subcarrier multiplexing technique in optical FM direct-detection systems</title>

Abstract

Applying a subcarrier multiplexing technique (SCM) in an optical frequency division multiplexing system (OFDM) will improve utilization of the optical channel, at the same time increasing the flexibility in designing an optical network. In this paper, system examples based on the combination of these two techniques ar discussed. Particular attention is given to the application of SCM in OFDM systems which employs FM direct detection techniques. Component characteristics which affect system performance are discussed and results presented.