Design of high-power strained InGaAs/AlGaAs quantum-well lasers with a vertical divergence angle of 18 degrees

摘要

Epitaxial structures were designed for high-power strained InGaAs/AlGaAs quantum-well lasers with a vertical-divergence emitting angle of 18 degrees . A maximum free-space optical output of <500 mW and a singlemode-fibre coupled power of <250 mW were obtained.