Comparison of harmonic and intermodulation distortions of directly modulated interband lasers and quantum cascade lasers

In this paper, a comparison of second harmonic and two-carrier intermodulation distortion of three near infrared interband lasers and three mid-infrared quantum cascade lasers is reported. These distortions arise from direct intensity modulation of semiconductor lasers. To make the comparison, the d...

Full description

Saved in:
Bibliographic Details
Published in2014 IEEE 5th International Conference on Photonics (ICP) pp. 129 - 131
Main Authors Yong, Kelvin S. C., Haldar, Manas K., Webb, Jeffrey F.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2014
Subjects
direct intensity modulation
Harmonic distortion
interband lasers
Intermodulation distortion
Laser noise
Optical distortion
Quantum cascade lasers
Radio frequency
second harmonic distortion
two-carrier intermodulation distortion
Online AccessGet full text

Cover

More Information
Summary:In this paper, a comparison of second harmonic and two-carrier intermodulation distortion of three near infrared interband lasers and three mid-infrared quantum cascade lasers is reported. These distortions arise from direct intensity modulation of semiconductor lasers. To make the comparison, the distortions in dBs are plotted against the frequency of the RF subcarrier. The lasers are considered to have the same DC optical power output and optical modulation depth.
ISSN:2330-5665
DOI:10.1109/ICP.2014.7002332