Distortion of the frequency modulation spectra of semiconductor lasers by weak optical feedback

17 March 1988

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

Vol. 24 (6) , 337-339
https://doi.org/10.1049/el:19880229

Abstract

Weak optical feedback is observed to cause large deviations from flat frequency modulation response in 1.5 μm DFB lasers. Peak/valley ripple of more than a factor of 15 is generated by a feedback level of −39dB.

Keywords

FLAT RESPONSE DEVIATION
DFB LASERS
FREQUENCY MODULATION SPECTRA
WEAK OPTICAL FEEDBACK
1.5 MICRON
SEMICONDUCTOR LASERS

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