Influence of Modulation Bandwidth on Fiber Transmission Using an Electroabsorption Modulator

Kyo INOUE  Toshio WATANABE  

Publication
IEICE TRANSACTIONS on Communications   Vol.E82-B    No.5    pp.773-775
Publication Date: 1999/05/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Optical Communication
Keyword: 
frequency chirping,  electroabsorption,  electrooptic modulation,  optical fiber communication,  

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Summary: 
Frequency chirping induced in an electorabsorption (EA) modulator can degrade transmission performance because of the chromatic dispersion of fiber. This letter studies the frequency chirping in an EA modulator from the viewpoint of the influence of the modulation bandwidth. Both simulations and experiments, in which fiber transmission was carried out applying modulation signals of different bandwidths to an EA modulator, show that a large bandwidth causes small degradation in the transmission performance. This result is attributed to the short chirping time that occurs when a large bandwidth signal is applied.