Retraction Note to: Mode-competition phenomena among longitudinal modes in semiconductor lasers under the effect of external optical feedback
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1 Retraction Note to: Applied Physics B (2018) 124:220 https://doi.org/10.1007/s00340-018-7088-5
The authors have retracted the original article because the article shows significant overlap with a previously published article by Ahmed and Yamada . All authors agree to this retraction.
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