Multi-electrode complex-coupled DFB lasers for reduced spatial hole burning
PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE)(2003)
Abstract
The effects of using multiple electrodes to reduce longitudinal spatial hole burning (LSHB) in a complex-coupled distributed feedback (DFB) laser are investigated. Using a time-domain model, we show that LSHB can be compensated by injecting more current into the center of the device. We also find that differential current injection has an effect on the threshold current and quantum efficiency of the DFB laser. Spectral characteristics are obtained by fast Fourier transform (FFT) of the time-domain data and we show that inhomogeneous current injection can also have an effect on the laser linewidth.
MoreTranslated text
Key words
electrodes,time domain,quantum efficiency,lasers,feedback,fast fourier transform,fourier transforms
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined