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(Color online) Schematic representation of the IV-VI VECSEL. The two different gain structures a and b are shown separately together with the optical intensity distribution at wavelength.
Laser spectra at : One mode at low (left) and multimode at higher pumping power (right).
Light-in/light-out characteristics at for pulsed and quasi-cw excitation of structures a and b.
Threshold pump power vs temperature for structure a.
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