Title :
Characterization of the Dynamic Absorption of Electroabsorption Modulators With Application to OTDM Demultiplexing
Author :
Gallant, Andrew D. ; Cartledge, John C.
Author_Institution :
Gennum Corp., Burlington, ON
fDate :
7/1/2008 12:00:00 AM
Abstract :
In this paper, a technique for characterizing the dynamic absorption of electroabsorption modulators (EAMs) under high-frequency sinusoidal modulation is described. By using an optical sampling oscilloscope (OSO), the nonlinear response of a modulator to 10- and 40-GHz modulation is accurately measured. The results for the dynamic absorption are used in a measurement-based model to calculate optical gating windows for the demultiplexing of a 160-Gb/s optical time-division multiplexed (OTDM) signal to its 10- and 40-Gb/s tributary signals. Good agreement is achieved between the calculated and measured gating windows.
Keywords :
demultiplexing equipment; electro-optical modulation; electroabsorption; optical communication equipment; oscilloscopes; time division multiplexing; EAM; OTDM demultiplexing; bit rate 10 Gbit/s; bit rate 160 Gbit/s; bit rate 40 Gbit/s; dynamic absorption; electroabsorption modulator; frequency 10 GHz; frequency 40 GHz; high-frequency sinusoidal modulation; measurement-based model; nonlinear response; optical communication systems; optical gating windows; optical sampling oscilloscope; optical time-division multiplexed signal; Absorption; Bandwidth; Demultiplexing; High speed optical techniques; Nonlinear optics; Optical modulation; Optical receivers; Optical transmitters; Sampling methods; Wavelength division multiplexing; Dynamic absorption; electroabsorption modulator (EAM); gating window;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2008.922190
