Sources and modulators
Transmission systems on optical fibers
Article REF: TE7115 V2
Sources and modulators
Transmission systems on optical fibers

Authors : Michel JOINDOT, Irène JOINDOT

Publication date: January 10, 2013, Review date: March 21, 2016 | Lire en français

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2. Sources and modulators

2.1 Sources and source noise

Like any electromagnetic oscillator, a laser never delivers a perfect sine wave. This is affected by amplitude and phase noise, which can degrade the performance of communication systems . Amplitude fluctuations are usually characterized by Relative Intensity Noise (RIN), defined as the ratio of the power spectral density of normalized power fluctuations to the average transmitted power. If the...

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