Multi-diode cascade VCSEL with 130% differentialquantum efficiency at CW room temperature operation

2001/01/04 by T. Knödl, T. Knödl, M. Golling +2
Engineering · Chemistry · #Semiconductor Lasers and Optical Devices #Photonic and Optical Devices #Spectroscopy and Laser Applications

paper · doi:10.1049/el:20010040

Abstract

The room temperature, continuous-wave (CW) operation of a fabricated multi-diode cascade vertical-cavity surface-emitting laser at 980 nm wavelength, with a differential quantum efficiency exceeding unity, is demonstrated for the first time. A maximum wallplug efficiency of 16% is obtained at a driving current of three times the threshold.

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