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Low-threshold continuous-wave operation of an oxide-confined vertical cavity surface emitting laser based on a quantum dot active region and half-wave cavity

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3 Author(s)
Huffaker, D.L. ; Microelectron. Res. Center, Texas Univ., Austin, TX ; Graham, L.A. ; Deppe, D.G.

Data are presented on vertical cavity surface emitting lasers that use an InGaAlAs quantum dot active region and oxide-confinement. Continuous-wave room temperature operation is achieved at a wavelength of 9510 Å with a threshold current of 235 μA for a 7 μm square oxide aperture. Electroluminescence from similar active regions without a cavity shows that lasing occurs on the three-dimensionally confined quantum dot electronic states

Published in:

Electronics Letters  (Volume:33 ,  Issue: 14 )