A Vertical-Cavity Surface-Emitting Laser at Threshold

Abstract : Linewidth is measured over the threshold transition of a vertical-cavity surface-emitting laser and results are compared to a Fokker–Planck semiconductor laser model. The linewidth shows non monotonous behaviour at threshold similar to that previously observed in distributed feedback lasers. The behaviour agrees with the Fokker–Planck model if the linewidth enhancement factor alpha= 5:0. Measurement of the relaxation oscillation frequency and the damping rate using an injected optical probe allows, together with the Fokker–Planck model, the extraction of major laser parameters.
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Journal articles
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Submitted on : Thursday, February 11, 2016 - 3:51:40 PM
Last modification on : Thursday, March 29, 2018 - 11:06:05 AM

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Thomas Fordell, Zeno Toffano, Åsa Marie Lindberg. A Vertical-Cavity Surface-Emitting Laser at Threshold. IEEE Photonics Technology Letters, Institute of Electrical and Electronics Engineers, 2006, 18 (21), pp.2263-2265. ⟨10.1109/LPT.2006.884882⟩. ⟨hal-01272950⟩

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