T. Heil et al., Statistical properties of low-frequency fluctuations during single-mode operation in distributed-feedback lasers: experiments and modeling, OPTICS LETT, 24(18), 1999, pp. 1275-1277
Extensive experimental and numerical investigations of feedback-induced ins
tabilities in single-mode distributed-feedback lasers are presented that co
nfirm the basic assumptions of the Lang-Kobayashi model. We give experiment
al evidence of the occurrence of low-frequency fluctuation (LFF), alternati
on between LFF and stable emission, and coherence collapse during single-mo
de operation of the laser. We have obtained quantitative agreement between
modeling and experiment in long-time statistical investigations of the time
intervals between subsequent LFF dropouts. In particular, we show that eve
n the dependence of the dynamics on the injection current, which results in
a scaling law, is quantitatively identical in modeling and experiment. (C)
1999 Optical Society of America. OCIS codes: 140.5960, 140.1540.