Title

Fiber Optic Intermodulation Distortion

Document Type

Article

Date of Original Version

1-1-1982

Abstract

In analog frequency-division multiplexed fiber optic systems, laser nonlinearities transfer energy between the different carriers, resulting in intermodulation distortion and interference. A third-order polynomial without memory is used to model the nonlinearity. The FM frequency-division multiplexed (FM/FDM) signal consists of a set of FM carriers at frequencies. Nω0, where N = L, L + 1, L +2,…, M. The video distortion introduced by the nonlinearity is determined for various types of second- and third-order intermodulation terms. The intermodulation distortion frequency spectrum is determined for FM signals with assumed Gaussian spectra. Copyright © 1982 by The Institute of Electrical and Electronics Engineers, Inc.

Publication Title

IEEE Transactions on Communications

Volume

30

Issue

8

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