1.5-mW single-mode operation of wafer-fused 1550-nm VCSELs

ArticleinIEEE Photonics Technology Letters 16(5):1230 - 1232 · June 2004with16 Reads
Impact Factor: 2.11 · DOI: 10.1109/LPT.2004.826099 · Source: IEEE Xplore


    We demonstrate 1.5-μm waveband wafer-fused InGaAlAs-InP-AlGaAs-GaAs vertical-cavity surface-emitting lasers (VCSELs) emitting high single-mode power of 1.5 mW at room temperature with sidemode suppression ratio of over 30 dB and a full-width at half-maximum far field angle of 9°. These devices have thermal resistance value below 1.5 K/mW and are emitting 0.2 mW at 70°C. VCSELs with a wavelength span of 40-nm emission are produced from the same active cavity material, which shows the potential of realizing multiple-wavelength VCSEL arrays.