Intermodulation distortions of broad-band modulated laser diodes

Author

Helms, Jochen

Author_Institution

Inst. fur Hochfrequenztech., Tech. Univ., Berlin, Germany

Volume

10

Issue

12

fYear

1992

fDate

12/1/1992 12:00:00 AM

Firstpage

1901

Lastpage

1906

Abstract

For modulation frequencies with arbitrary frequency spacing the intermodulation distortions of laser diodes have been investigated both theoretically and experimentally. The second-order distortions only depend on the resulting intermodulation frequency, whereas for the third-order distortions the position of each modulation frequency must be considered. With respect to subcarrier multiplexed (SCM) communication systems, it was found that carriers with large frequency differences can increase the third-order intermodulation distortions up to 15 dB compared to those for closely spaced carriers

Keywords

intermodulation; laser theory; multiplexing equipment; optical communication equipment; optical modulation; semiconductor lasers; subcarrier multiplexing; arbitrary frequency spacing; broad-band modulated laser diodes; communication systems; intermodulation distortions; intermodulation frequency; large frequency differences; modulation frequencies; second-order distortions; subcarrier multiplexed; third-order distortions; Charge carrier density; Charge carrier lifetime; Diode lasers; Distortion measurement; Electron emission; Equations; Frequency modulation; Harmonic analysis; Intermodulation distortion; Laser noise;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.202844

Filename

202844