Open AccessExtinction-ratio-independent method for chirp measurements of Mach-Zehnder modulators
Author(s) -
Nadège Courjal,
John M. Dudley,
H. Porte
Publication year - 2004
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.000442
Subject(s) - chirp , optics , extinction ratio , physics , mach–zehnder interferometer , modulation (music) , extinction (optical mineralogy) , interferometry , acoustics , wavelength , laser
The authors describe a general method to extract the frequency chirping of Mach-Zehnder modulators based on direct measurements of the output spectrum. This method is independent of the modulator extinction ratio and allows measurement of the intrinsic chirp parameter to an accuracy of 5%.