Third-order intermodulation distortion in coherent subcarrier-multiplexed systems

Author

Gross, Richard ; Olshansky, Robert

Author_Institution

GTE Lab. Inc., Waltham, MA, USA

Volume

1

Issue

4

fYear

1989

fDate

4/1/1989 12:00:00 AM

Firstpage

91

Lastpage

93

Abstract

Distortion due to third-order intermodulation products in coherent optical subcarrier-multiplexed communication systems is investigated. It is shown that intermodulation distortion limits both the number of data channels and the maximum obtainable carrier-to-noise ratio. Analysis is restricted to systems operating over one octave. Experimental results on the optimal phase modulation (PM) index based on the number and frequency allocation of the microwave channels are discussed. The conditions for optimal performance with respect to channel number and phase modulation index are given.<>

Keywords

intermodulation; multiplexing equipment; optical communication equipment; optical modulation; phase modulation; channel number; coherent optical subcarrier-multiplexed communication systems; data channels; frequency allocation; maximum obtainable carrier-to-noise ratio; microwave channels; optimal phase modulation index; third-order intermodulation distortion; Frequency shift keying; Intermodulation distortion; Optical distortion; Optical filters; Optical mixing; Optical modulation; Optical receivers; Optical sensors; Optical transmitters; Phase modulation;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.87913

Filename

87913