Optical Amplitude Multiplexing through Parametric Amplification: An Analysis for the Idler Signal

A. L. A. Costa, J. D. Marconi, F. R. Barbosa, E. Moschim, M. L. F. Abbade

DOI: 10.14209/sbrt.2010.41

Evento: VII International Telecommunications Symposium (ITS2010)

Keywords: Optical signal processing parametric amplifiers (PA) quaternary-amplitude shift keying (4 - ASK)

Abstract

Recently a new technique that used parametric amplification in optical fibers to combine two binary signals into a single quaternary amplitude-shift keying (4-ASK) signal, at frequency of signal to be amplified, was proposed. In this paper, other new technique with use of parametric amplification, also to combine two binary signals into a single quaternary amplitude-shift keying (4-ASK) it is proposed, however, the 4-ASK signal will be generated at idler frequency. We also develop a theoretical model to predict the power level distribution of the 4-ASK signals as a function of the extinction ratios of the input binary signals. Computer simulation results agree with the predictions of this theoretical model within a 1.3 dB margin. Finally, was also performed some simulation to compare the propagation between 4-ASK idler signal with 4- ASK probe signal. This technique could be applied to optically generate optical packets.

Download