Wavelength discriminator method for measuring dynamic chirp in DFB lasers

29 September 1988

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 24 (20) , 1296-1297
https://doi.org/10.1049/el:19880883

Abstract

Wavelength fluctuations in a modulated DFB laser are transformed into intensity fluctuations using a Fabry-Perot interferometer as a wavelength discriminator. Using this method we have measured chirp in several DFB lasers. The results show a high correlation between chirp and regenerator sensitivity degradation when transmitting through dispersive spans.

Keywords

REGENERATOR SENSITIVITY DEGRADATION
DFB LASERS
DISPERSIVE SPANS
CHIRP
DYNAMIC CHIRP
WAVELENGTH DISCRIMINATOR
INTENSITY FLUCTUATIONS
FABRY-PEROT INTERFEROMETER

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