Beam steering in mid-infrared emitting quantum-cascade lasers

Michel Kinzer; Frank Fuchs; Stefan Hugger; Borislav Hinkov; Wolfgang Bronner; Rainer Loesch; Rolf Aidam; Quankui Yang; Hans Dieter Tholl

doi:10.1117/12.869851

12 October 2010 Beam steering in mid-infrared emitting quantum-cascade lasers

Michel Kinzer, Frank Fuchs, Stefan Hugger, Borislav Hinkov, Wolfgang Bronner, Rainer Loesch, Rolf Aidam, Quankui Yang, Hans Dieter Tholl

Author Affiliations +

Proceedings Volume 7836, Technologies for Optical Countermeasures VII; 78360R (2010) https://doi.org/10.1117/12.869851
Event: SPIE Security + Defence, 2010, Toulouse, France

Abstract

We report large beam steering effects, observed in the far-field pattern of InP-based mid-infrared quantum-cascade lasers along the slow axis. Changing the temperature by a few degrees around room temperature or varying the drive current strongly affects the lateral direction of the output beam. The position of maximum intensity in the far-field-distribution changes by more than 20°. This beam steering effect is correlated to changes in the lateral mode distribution, as revealed by time-resolved spectroscopy of the lasing spectrum.

Citation Download Citation

Michel Kinzer, Frank Fuchs, Stefan Hugger, Borislav Hinkov, Wolfgang Bronner, Rainer Loesch, Rolf Aidam, Quankui Yang, and Hans Dieter Tholl "Beam steering in mid-infrared emitting quantum-cascade lasers", Proc. SPIE 7836, Technologies for Optical Countermeasures VII, 78360R (12 October 2010); https://doi.org/10.1117/12.869851

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