High-Power 760 nm VECSEL Based on Quantum Dot Gain Mirror

Kostiantyn Nechay (1) , Alexandru Mereuta (2) , Cyril Paranthoën (3) , Gaëlle Brévalle (3) , Christophe Levallois (3) , Mehdi Alouini (3) , Nicolas Chevalier (3) , Mathieu Perrin (3) , Grigore Suruceanu (2) , Andrei Caliman (2) , Eli Kapon (2) , Mircea Guina (1)

1 TUT - Tampere University of Technology [Tampere]
2 EPFL - Ecole Polytechnique Fédérale de Lausanne
3 FOTON - Institut des Fonctions Optiques pour les Technologies de l'informatiON

We report high-power second-harmonic generation of 760 nm laser light from optically-pumped vertical-external-cavity surface-emitting laser based on quantum dot active medium. The laser generates ~1.2 W in fundamental transverse mode with fixed linear polarization. The emission wavelength can be continuously tuned from 738 to 778 nm by using an intra cavity birefringent filter for fundamental radiation without readjustment of phase-matching angle of the nonlinear crystal. The result constitutes a viable alternative for applications requiring broadly tunable high brightness lasers in the 700-800 nm range.

Domaines: Science des matériaux [cond-mat.mtrl-sci]

Kostiantyn Nechay, Alexandru Mereuta, Cyril Paranthoën, Gaëlle Brévalle, Christophe Levallois, et al.. High-Power 760 nm VECSEL Based on Quantum Dot Gain Mirror. IEEE Journal of Quantum Electronics, 2020, 56 (4), pp.2400404. ⟨10.1109/JQE.2020.2986770⟩. ⟨hal-02876675⟩