Low-threshold continuous-wave operation of an oxide-confinedvertical cavity surface emitting laser based on a quantumdot active region and half-wave cavity
- 3 July 1997
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 33 (14) , 1225-1226
- https://doi.org/10.1049/el:19970825
Abstract
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.Keywords
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