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Dynamical behavior of a semiconductor laser with filtered external optical feedback

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2 Author(s)
Yousefi, M. ; Dept. of Phys. & Astron., Vrije Univ., Amsterdam, Netherlands ; Lenstra, Daan

We report on a theoretical analysis of the dynamical performance of a semiconductor laser under the influence of delayed weak filtered external optical feedback. The filter widths considered range from 1 to 100 GHz. The analysis concentrates on the well known low-frequency fluctuations (LFFs) regime, in which LFFs occur in the absence of filtering. As expected, filtering the feedback light stabilizes the system in general. LFF can already be suppressed for moderately broad filters (25-50 GHz). In that case, the system was found to operate on the maximum gain mode with a small amplitude limit cycle. We show how the filtering can, in principle, be used for targeting the laser on the maximum gain mode

Published in:

Quantum Electronics, IEEE Journal of  (Volume:35 ,  Issue: 6 )