DocumentCode
1331169
Title
Optimized predistortion of overmodulated Mach-Zehnder modulators with multicarrier input
Author
Wilson, Gordon C.
Author_Institution
Lucent Technols., Bell Labs, Holmdel, NJ, USA
Volume
9
Issue
11
fYear
1997
Firstpage
1535
Lastpage
1537
Abstract
Using a Mach-Zehnder modulator, predistorted to third-order only, 77-channel CTBs are measured that surpass published theoretical limits. New composite triple beat (CTB) limits for nth-order predistortion are calculated. Modulator and predistorter bandwidth limitations are shown by numerical simulation to limit the CTB obtainable in practical systems.
Keywords
Mach-Zehnder interferometers; cable television; electro-optical modulation; optical fibre subscriber loops; optical noise; optimisation; 77-channel CTB; CTB limits; Mach Zehnder interferometers; Mach-Zehnder modulator; composite triple beat; modulator bandwidth limitations; multicarrier input; nth-order predistortion; numerical simulation; optimized predistortion; overmodulated Mach-Zehnder modulators; practical systems; predistorter bandwidth limitations; third-order predistortion; Bandwidth; Interferometers; Intermodulation distortion; Numerical simulation; Optical distortion; Optical modulation; Optical transmitters; Predistortion; Transfer functions; Voltage;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/68.634733
Filename
634733
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