TITLE

Effect of gain nonlinearities on period doubling and chaos in directly modulated semiconductor lasers

AUTHOR(S)
Agrawal, Govind P.
PUB. DATE
October 1986
SOURCE
Applied Physics Letters;10/20/1986, Vol. 49 Issue 16, p1013
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The mode gain in semiconductor lasers decreases with an increase in power due to nonlinear processes such as spectral hole burning. When these small nonlinearities are included in the single-mode rate equations, it is found that they can eliminate the previously predicted sequence of period-doubling bifurcations leading to chaos in directly modulated semiconductor lasers. For InGaAsP lasers used in optical communication systems, the nonlinear effects are strong enough that the possibility of chaotic behavior should be of no concern. The results also show that gain nonlinearities should be included when gain switching is used for the generation of picosecond pulses.
ACCESSION #
9821137

 

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