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Increase in laser RIN due to asymmetric nonlinear gain and fiber dispersion

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Abstract

The leve1 and control of the source laser’s relative intensity noise (RIN) is critica1 to the optimization of fiber optic distribution systems. It has been recently demonstrated1 that as a result of longitudinal-mode competition the low frequency (0-2 GHz) portion of the RIN spectral density can be greatly enhanced. While this noise is at relatively low frequency, it can be readily translated to higher frequencies by beating with the modulation signal.2 This effect is of particular importance in microwave and broadband subcarrier multiplexed systems.

© 1992 Optical Society of America

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