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HL: Fachverband Halbleiterphysik

HL 64: Poster: Photovoltaics and Optics

HL 64.44: Poster

Mittwoch, 22. März 2017, 15:00–19:00, P1C

Injection Locking of Spontaneous Emission Enhanced Microlaser — •Felix Krüger¹, Elisabeth Schlottmann¹, Steffen Holzinger¹, Christian Schneider², Sven Höfling², Martin Kamp², Janik Wolters³, Xavier Porte¹, and Stephan Reitzenstein¹ — ¹Institut für Festkörperphysik, Technische Universität Berlin — ²Technische Physik, Universität Würzburg — ³present adress: Universität Basel, Switzerland

Micro- and nanolasers are of broad interest because of their size, modulation speed and low energy consumption. In recent years the nonlinear dynamics of such lasers are spotlighted in an interdisciplinary context at the crossroads of classical and quantum physics.
The experimental studies address the influence of the spontaneous emission factor β on the locking properties and on mode switching in bimodal microlasers. Our studies reveal, that for small mode-volume microlasers emission of thermal light is maintained at the solitary cavity mode while only the coherent part of emission locks to the external master laser [1].
Moreover, in bimodal micropillar lasers the master laser allows for a polarization dependent destabilization or stabilization of switching processes. We also discuss more complex injection schemes involving delayed optical feedback.
[1] E. Schlottmann, S. Holzinger et al., Phys. Rev. Applied 6,
044023 (2016)