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We show that semiconductor Fano lasers strongly suppress dynamic instabilities induced by
external optical feedback. A comparison with conventional Fabry-Perot lasers shows orders of
magnitude improvement in feedback stability, and in many cases even total suppression of coherence
collapse, due to a unique reduction of the characteristic relaxation oscillation frequency.
The laser dynamics is analysed using a generalisation of the Lang-Kobayashi model for semiconductor
lasers with external feedback.
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Jesper Mork, Thorsten S. Rasmussen, "Optical feedback effects in semiconductor Fano lasers (Conference Presentation)," Proc. SPIE 11274, Physics and Simulation of Optoelectronic Devices XXVIII, 112740H (9 March 2020); https://doi.org/10.1117/12.2551144