Room-temperature continuous-wave laser operation of electrically-pumped 1.55 µm V <u>E</u> CSEL

Abstract

A report is presented on room-temperature (RT) continuous-wave (CW) laser emission at 1.55 µm of an all InP-based electrically-pumped vertical external-cavity surface-emitting laser (EP-VECSEL). Threshold currents of 1.4 kA/cm2 and output powers of up to 0.3 mW were measured under CW operation at RT. A maximum output power of 2.7 mW has been obtained in quasi-CW operation at a heatsink temperature of 10.5°C. This first result demonstrates that EP-VECSELs are a potential candidate for the realisation of compact vertical-cavity emitting sources.